2001 BURLINGTON, VERMONT (BTV)



Burlington is located on the eastern shore of Lake Champlain at the widest part of the lake. About 35 miles to the west lie the highest peaks of the Adirondacks, while the foothills of the Green Mountains begin 10 miles to the east and southeast.

Its northerly latitude assures the variety and vigor of a true New England climate, while thanks to the modifying influence of the lake, the many rapid and marked weather changes are tempered in severity. Due to its location in the path of the St. Lawrence Valley storm track and the lake effects, the city is one of the cloudiest in the United States.

Lake Champlain exercises a tempering influence on the local temperature. During the winter months and prior to the lake freezing, temperatures along the lake shore are often 5–10 degrees warmer than at the airport 3 l/2 miles inland. At the airport the average occurrence of the last freeze in spring is around May l0th and that of the first in fall is early October, giving a growing season of 145 days. This location is justly proud of its delightful summer weather. On average, there are few days a year with maxima of 90 degrees or higher. This moderate summer heat gives way to a cooler, but none the less pleasant fall period, usually extending well into October. High pressure systems moving down rapidly from central Canada or Hudson Bay produce the coldest temperatures during the winter months, but extended periods of very cold weather are rare.

Precipitation, although generally plentiful and well distributed throughout the year, is less in the Champlain Valley than in other areas of Vermont due to the shielding effect of the mountain barriers to the east and west. The heaviest rainfall usually occurs during summer thunderstorms, but excessively heavy rainfall is quite uncommon. Droughts are infrequent.

Because of the trend of the Champlain Valley between the Adirondack and Green Mountain ranges, most winds have a northerly or southerly component. The prevailing direction most of the year is from the south. Winds of damaging force are very uncommon.

Smoke pollution is nearly non–existent since there is no concentration of heavy industry here, however, haze has been on the increase over the years due to the large increase in industry to the north and south. During the spring and fall months, fog occasionally forms along the Winooski River to the north and east and may drift over the airport with favorable winds. In spite of the high percentage of cloudiness, periods of low aircraft ceilings and visibilities are usually of short duration, allowing this area to have one of the highest percentages of flying weather in New England.

NORMALS, MEANS, AND EXTREMES

BURLINGTON, VT (BTV)

LATITUDE:    LONGITUDE:     ELEVATION (FT):    TIME ZONE:    WBAN: 14742

44 28′ 05″ N  73 09′ 01″ W  GRND:  345  BARO: � A0;348  EASTERN (UTC + 5)

2001 Burlington, Vermont (BTV)

ELEMENT POR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR
TEMPERATURE F NORMAL DAILY MAXIMUM 30 25.1 27.5 39.3 53.6 67.2 75.8 81.2 77.9 69.0 57.0 44.0 30.4 54.0
MEAN DAILY MAXIMUM 54 26.3 28.8 38.4 53.4 67.0 76.2 80.8 78.2 69.0 57.5 44.4 31.7 54.3
HIGHEST DAILY MAXIMUM 58 66 62 84 91 93 100 100 101 94 85 75 67 101
YEAR OF OCCURRENCE 1995 1981 1998 1976 1977 1995 1995 1944 1945 1949 1948 1998 AUG 1944
MEAN OF EXTREME MAXS. 54 48.0 47.0 61.0 74.9 85.0 90.4 92.4 90.0 84.8 75.0 64.5 52.1 72.1
NORMAL DAILY MINIMUM 30 7.5 8.9 22.0 34.2 45.4 54.6 59.7 57.9 48.8 38.6 29.6 15.5 35.2
MEAN DAILY MINIMUM 54 8.7 10.1 20.9 33.3 44.7 54.5 59.3 57.3 49.3 38.9 30.1 16.6 35.3
LOWEST DAILY MINIMUM 58 -30 -30 -20 2 24 33 39 35 25 15 -2 -26 -30
YEAR OF OCCURRENCE 1957 1979 1948 1972 1966 1986 1962 1976 1963 1972 1958 1980 FEB 1979
MEAN OF EXTREME MINS. 54 -14.9 -13.5 -1.3 18.8 30.3 39.7 46.9 44.1 33.3 24.2 11.6 -7.9 17.6
NORMAL DRY BULB 30 16.3 18.2 30.7 43.9 56.3 65.2 70.5 67.9 58.9 47.8 36.8 23.0 44.6
MEAN DRY BULB 54 17.5 19.4 29.7 43.4 55.8 65.3 70.1 67.7 59.2 48.3 37.3 24.2 44.8
MEAN WET BULB 18 18.1 19.2 27.2 39.1 50.4 59.1 63.4 62.3 54.9 44.3 34.5 24.0 41.4
MEAN DEW POINT 18 12.1 12.5 20.0 31.3 43.4 53.6 59.0 58.1 50.9 39.0 28.8 18.4 35.6
NORMAL NO. DAYS WITH:
MAXIMUM 90 30 0.0 0.0 0.0 0.1 0.5 1.2 2.9 1.0 0.1 0.0 0.0 0.0 5.8
MAXIMUM 32 30 21.3 18.3 8.6 0.6 0.0 0.0 0.0 0.0 0.0 * 4.3 17.4 70.5
MINIMUM 32 30 30.1 26.4 26.0 15.9 3.2 0.0 0.0 0.0 0.9 8.9 19.1 28.1 158.6
MINIMUM 0 30 10.3 8.7 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 26.0
H/C NORMAL HEATING DEG. DAYS 30 1510 1310 1063 633 282 58 6 29 199 533 846 1302 7771
NORMAL COOLING DEG. DAYS 30 0 0 0 0 13 64 176 119 16 0 0 0 388
RH NORMAL (PERCENT)
HOUR 01 LST 30 71 72 73 74 77 81 83 85 85 79 76 75 78
HOUR 07 LST 30 72 74 75 73 74 77 79 83 86 81 78 76 77
HOUR 13 LST 30 64 61 58 53 51 54 53 57 61 61 66 67 59
HOUR 19 LST 30 68 65 63 58 57 60 61 67 73 71 72 72 66
S PERCENT POSSIBLE SUNSHINE 58 41 48 51 49 55 59 64 60 54 47 31 33 49
W/O MEAN NO. DAYS WITH:
HEAVY FOG(VISBY 1/4 MI) 58 1.0 1.2 1.4 1.3 0.9 1.1 0.8 1.4 2.4 1.9 1.2 1.1 15.7
THUNDERSTORMS 58 0.0 0.0 0.4 1.0 2.5 5.0 6.0 5.0 2.1 0.6 0.3 0.0 22.9
CLOUDINESS MEAN:
SUNRISE-SUNSET (OKTAS) 53 6.0 5.8 5.7 5.8 5.6 5.4 5.0 5.0 5.1 5.4 6.4 6.3 5.6
MIDNIGHT-MIDNIGHT (OKTAS) 32 5.9 5.4 5.3 5.3 5.3 5.0 4.8 4.8 5.0 5.3 6.2 6.2 5.4
MEAN NO. DAYS WITH:
CLEAR 54 4.6 4.5 5.8 5.0 4.9 4.8 5.1 5.9 5.9 5.9 2.5 2.9 57.8
PARTLY CLOUDY 54 6.4 6.9 6.9 7.5 9.3 10.8 12.7 11.6 9.8 7.6 5.2 5.7 100.4
CLOUDY 54 20.1 16.9 18.3 17.5 16.7 14.4 12.7 13.1 13.8 17.1 21.7 21.7 204.0
PR MEAN STATION PRESSURE(IN) 29 29.61 29.70 29.60 29.60 29.59 29.59 29.60 29.70 29.68 29.70 29.69 29.69 29.65
MEAN SEA-LEVEL PRES. (IN) 18 30.06 30.06 30.04 29.97 29.95 29.94 29.96 30.02 30.05 30.08 30.06 30.06 30.02
WINDS MEAN SPEED (MPH) 47 9.8 9.4 9.5 9.5 9.0 8.5 8.1 7.8 8.5 8.9 9.8 10.0 9.1
PREVAIL. DIR (TENS OF DEGS) 31 18 18 18 18 18 18 18 18 18 18 18 18 18
MAXIMUM 2-MINUTE:
SPEED (MPH) 5 38 37 32 36 33 32 34 35 36 31 33 35 38
DIR. (TENS OF DEGS) 18 25 18 33 19 19 32 27 32 29 19 27 18
YEAR OF OCCURRENCE 1997 2001 1997 2000 1997 2000 1999 2000 1999 1998 1999 2000 JAN 1997
MAXIMUM 5-SECOND:
SPEED (MPH) 5 51 47 44 43 40 41 43 46 48 41 43 45 51
DIR. (TENS OF DEGS) 19 19 19 32 19 28 31 26 32 27 18 18 19
YEAR OF OCCURRENCE 1997 1997 1997 2000 1997 1998 1999 2000 1999 1998 1998 1998 JAN 1997
PRECIPITATION NORMAL (IN) 30 1.82 1.63 2.23 2.76 3.12 3.47 3.65 4.06 3.30 2.88 3.13 2.42 34.47
MAXIMUM MONTHLY (IN) 58 5.15 5.38 4.14 6.55 6.31 8.66 9.31 11.54 10.26 6.22 6.85 5.95 11.54
YEAR OF OCCURRENCE 1998 1981 2001 1983 1983 1998 1998 1955 1999 1959 1983 1973 AUG 1955
MINIMUM MONTHLY (IN) 58 0.42 0.21 0.38 0.73 0.29 0.82 0.77 0.72 0.87 0.50 0.63 0.37 0.21
YEAR OF OCCURRENCE 1989 1978 1965 1999 1977 1995 2001 1957 1948 1963 1952 1998 FEB 1978
MAXIMUM IN 24 HOURS (IN) 58 2.11 1.93 1.62 2.16 2.26 2.83 2.69 3.62 3.96 2.17 2.48 2.60 3.96
YEAR OF OCCURRENCE 1998 1981 1971 1968 1955 1972 1985 1998 1999 1983 1990 1950 SEP 1999
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01 30 14.0 10.8 13.0 12.3 14.1 13.2 11.9 13.4 11.5 12.4 14.5 15.3 156.4
PRECIPITATION 1.00 30 0.1 0.1 0.2 0.1 0.3 0.5 0.8 0.8 0.7 0.5 0.2 0.2 4.5
SNOWFALL NORMAL (IN) 30 19.0 15.1 13.0 4.8 0.3 0.0 0.0 0.0 0.0 0.3 7.4 21.3 81.2
MAXIMUM MONTHLY (IN) 58 42.4 34.3 47.6 21.3 3.9 0.0 T T 0.1 5.1 19.2 56.7 56.7
YEAR OF OCCURRENCE 1978 1958 2001 1983 1966 1989 2001 1992 1969 1971 1970 DEC 1970
MAXIMUM IN 24 HOURS (IN) 58 14.5 17.7 22.4 15.6 3.5 0.0 T T 0.1 5.1 10.1 17.0 22.4
YEAR OF OCCURRENCE 1961 1995 1993 1983 1966 1989 2001 1992 1969 1958 1978 MAR 1993
MAXIMUM SNOW DEPTH (IN) 53 40 33 31 16 1 0 0 0 0 5 10 33 40
YEAR OF OCCURRENCE 1964 1958 1993 2001 1967 1969 1958 1969 JAN 1964
NORMAL NO. DAYS WITH:
SNOWFALL 1.0 30 5.2 4.3 3.9 1.5 0.1 0.0 0.0 0.0 0.0 0.1 2.2 5.8 23.1

2001 Burlington, Vermont (BTV)

PRECIPITATION (inches) 2001 BURLINGTON, VT (BTV)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 0.93 1.69 3.58 2.26 2.83 6.52 6.12 2.35 1.69 2.60 4.10 3.43 38.10
1973 2.13 1.55 2.09 3.80 5.38 7.69 3.02 5.41 5.02 1.93 2.31 5.95 46.28
1974 1.90 1.54 2.73 3.47 4.61 4.45 3.70 2.60 3.23 0.78 3.60 2.08 34.69
1975 2.20 2.01 2.86 1.71 1.17 2.47 3.77 2.85 4.12 3.85 3.14 2.36 32.51
1976 2.99 2.85 2.35 2.54 5.86 4.04 3.05 4.69 3.77 4.34 1.63 1.97 40.08
1977 1.61 1.78 2.97 3.13 0.29 2.06 3.34 6.27 6.33 5.02 4.22 3.42 40.44
1978 4.69 0.21 2.98 2.51 2.16 4.36 3.50 1.82 2.07 3.72 0.95 2.11 31.08
1979 4.50 0.60 2.15 3.61 3.12 1.39 1.23 3.42 3.84 2.31 3.89 1.50 31.56
1980 0.61 0.67 2.44 2.39 1.61 1.92 6.11 3.83 4.41 2.48 2.92 1.50 30.89
1981 0.49 5.38 1.32 3.05 3.76 3.07 3.22 5.58 6.24 5.26 2.73 2.03 42.13
1982 2.74 1.43 2.31 2.63 1.95 4.95 3.07 3.55 2.12 2.31 3.59 1.69 32.34
1983 3.09 1.66 2.60 6.55 6.31 1.49 3.92 4.31 3.77 4.38 6.85 5.23 50.16
1984 0.81 2.73 1.72 4.25 5.27 1.70 5.11 3.30 2.81 1.89 3.08 3.14 35.81
1985 1.46 1.26 2.46 1.90 3.53 3.76 4.42 2.67 3.30 3.31 3.68 1.59 33.34
1986 3.69 1.68 3.17 0.95 4.11 4.40 4.53 5.82 4.86 2.50 2.99 1.32 40.02
1987 1.91 0.49 1.33 1.42 2.69 4.42 2.79 2.09 3.58 3.28 2.24 1.17 27.41
1988 0.69 1.69 1.55 1.91 1.80 3.26 2.55 4.27 1.50 2.05 4.51 0.90 26.68
1989 0.42 0.67 2.60 1.89 3.19 3.68 3.65 7.30 5.98 2.98 2.41 1.26 36.03
1990 2.36 2.82 1.81 2.97 3.66 3.08 5.12 4.85 2.03 5.99 3.91 3.58 42.18
1991 1.65 0.51 2.55 3.41 3.15 1.28 2.83 4.00 5.14 5.07 1.58 1.35 32.52
1992 1.65 1.56 2.13 2.58 2.38 1.72 4.58 1.89 4.73 3.00 3.67 0.96 30.85
1993 2.17 1.90 1.54 3.76 2.19 3.35 3.34 4.46 3.38 2.93 2.27 1.57 32.86
1994 2.19 1.21 2.93 3.37 4.58 3.65 5.30 4.50 1.74 1.25 2.48 1.66 34.86
1995 1.88 1.26 1.60 2.35 1.41 0.82 3.49 4.64 2.97 5.81 3.33 2.63 32.19
1996 3.91 0.83 0.80 6.12 5.33 4.54 4.74 1.47 2.75 3.64 3.30 0.64 38.07
1997 1.71 1.38 2.59 1.54 2.24 2.62 3.89 4.63 2.98 1.23 4.16 1.65 30.62
1998 5.15 1.84 3.81 1.79 3.61 8.66 9.31 6.80 5.64 2.42 1.02 0.37 50.42
1999 3.51 1.13 2.22 0.73 2.40 1.79 1.97 2.41 10.26 3.18 1.86 1.12 32.58
2000 2.30 2.67 1.63 5.01 6.13 3.55 3.16 3.67 3.02 1.80 2.96 3.36 39.26
2001 0.98 1.54 4.14 0.85 2.28 2.32 0.77 4.32 1.40 1.37 1.81 1.49 23.27
POR=118 YRS 1.88 1.65 2.18 2.54 3.06 3.47 3.63 3.52 3.37 2.88 2.70 2.01 32.89

2001 Burlington, Vermont (BTV)

AVERAGE TEMPERATURE (F) 2001 BURLINGTON, VT (BTV)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 21.1 17.0 24.8 35.6 56.2 63.1 69.5 65.3 58.7 42.4 32.1 22.5 42.4
1973 21.5 14.6 37.1 44.6 53.6 66.9 70.6 72.1 58.5 49.3 37.2 27.4 46.1
1974 18.7 15.6 29.2 44.4 51.3 66.5 70.2 69.1 58.2 43.4 36.2 28.5 44.3
1975 23.6 20.7 28.0 37.1 62.3 66.4 74.6 69.1 58.0 50.4 42.1 20.1 46.0
1976 11.1 24.6 33.4 47.4 54.7 69.2 68.5 65.7 57.0 43.7 33.0 16.3 43.7
1977 11.1 20.5 37.6 45.3 60.0 64.7 69.6 67.5 58.7 46.6 40.0 22.4 45.3
1978 15.1 9.5 26.0 38.7 60.1 63.9 69.4 68.3 55.2 46.4 34.8 25.2 42.7
1979 18.0 7.5 36.9 43.5 58.5 65.3 72.2 65.9 58.6 48.1 41.3 29.0 45.4
1980 21.2 17.6 31.1 46.5 58.9 64.4 70.6 70.7 57.9 45.0 32.3 15.0 44.3
1981 8.9 32.9 33.5 46.7 58.2 66.1 71.1 67.1 59.3 44.9 36.9 25.3 45.9
1982 9.6 19.1 30.3 43.4 57.3 60.7 69.5 65.9 62.3 50.1 42.3 31.9 45.2
1983 21.0 22.3 33.0 42.3 52.9 66.3 71.3 68.6 62.9 48.2 38.1 22.4 45.8
1984 16.5 28.7 21.9 44.7 52.3 66.0 70.3 71.1 57.2 50.0 38.4 30.3 45.6
1985 13.4 22.5 31.6 44.3 55.8 61.7 69.6 67.5 60.3 49.1 36.9 21.3 44.5
1986 18.5 16.2 33.7 48.5 58.3 62.3 68.5 66.1 58.1 46.9 34.5 27.8 45.0
1987 18.1 15.0 33.3 48.6 55.5 66.3 71.5 66.7 59.5 45.9 37.0 28.5 45.5
1988 19.9 21.4 29.7 44.3 57.9 63.4 73.2 70.7 58.2 44.4 39.6 22.9 45.5
1989 23.7 19.7 28.4 41.6 59.6 67.2 71.7 67.7 61.4 50.3 36.4 7.6 44.6
1990 29.8 23.5 33.8 46.2 52.9 65.9 70.2 69.8 59.4 49.4 39.5 30.1 47.5
1991 18.9 26.5 34.0 49.1 59.3 65.9 70.4 70.5 57.8 50.4 37.6 24.0 47.0
1992 18.6 19.1 26.5 42.3 56.5 64.4 66.1 67.6 60.2 45.5 36.7 28.1 44.3
1993 21.7 10.6 27.4 45.3 56.6 64.7 72.2 70.8 59.1 46.1 36.8 24.7 44.7
1994 7.1 15.4 30.2 44.5 54.8 68.6 74.2 66.5 59.6 49.8 41.1 28.7 45.0
1995 27.9 19.0 35.0 40.4 56.4 69.6 74.7 70.0 57.5 54.1 35.2 22.0 46.8
1996 17.5 21.3 28.6 42.8 54.4 66.3 68.6 68.9 62.0 47.4 32.8 32.7 45.3
1997 19.1 25.0 26.9 41.4 51.4 67.3 68.7 66.8 58.6 46.6 35.1 25.8 44.4
1998 22.7 27.7 34.3 46.4 62.0 66.1 68.9 68.5 61.5 49.6 39.7 32.0 48.3
1999 19.1 24.8 30.9 44.7 59.8 70.5 74.2 68.1 64.5 46.2 42.6 28.7 47.8
2000 18.1 22.1 36.5 42.7 56.7 63.6 67.5 67.7 58.8 48.8 37.2 19.6 44.9
2001 20.1 22.1 27.2 43.2 58.7 67.2 68.0 72.6 61.3 51.1 42.4 32.7 47.2
POR=109 YRS 17.9 18.9 29.7 43.0 55.6 65.0 69.9 67.6 59.6 48.5 36.9 23.8 44.7

REFERENCE NOTES:

PAGE 1:

THE TEMPERATURE GRAPH SHOWS NORMAL MAXIMUM AND NORMAL MINIMUM DAILY TEMPERATURES (SOLID CURVES) AND THE ACTUAL DAILY HIGH AND LOW TEMPERATURES (VERTICAL BARS).

PAGE 2 AND 3:

H/C INDICATES HEATING AND COOLING DEGREE DAYS.

RH INDICATES RELATIVE HUMIDITY

W/O INDICATES WEATHER AND OBSTRUCTIONS

S INDICATES SUNSHINE.

PR INDICATES PRESSURE.

CLOUDINESS ON PAGE 3 IS THE SUM OF THE CEILOMETER AND SATELLITE DATA NOT TO EXCEED EIGHT EIGHTHS (OKTAS).

GENERAL:

T INDICATES TRACE PRECIPITATION, AN AMOUNT GREATER THAN ZERO BUT LESS THAN THE LOWEST REPORTABLE VALUE.

+ INDICATES THE VALUE ALSO OCCURS ON EARLIER DATES.

BLANK ENTRIES DENOTE MISSING OR UNREPORTED DATA.

NORMALS ARE 30–YEAR AVERAGES (1961–1990).

ASOS INDICATES AUTOMATED SURFACE OBSERVING SYSTEM.

PM INDICATES THE LAST DAY OF THE PREVIOUS MONTH.

POR (PERIOD OF RECORD) BEGINS WITH THE JANUARY DATA MONTH AND IS THE NUMBER OF YEARS USED TO COMPUTE THE MEAN. INDIVIDUAL MONTHS WITHIN THE POR MAY BE MISSING.

WHEN THE POR FOR A NORMAL IS LESS THAN 30 YEARS, THE NORMAL IS PROVISIONAL AND IS BASED ON THE NUMBER OF YEARS INDICATED.

0.* OR * INDICATES THE VALUE OR MEAN–DAYS–WITH IS BETWEEN 0.00 AND 0.05.

CLOUDINESS FOR ASOS STATIONS DIFFERS FROM THE NON–ASOS OBSERVATION TAKEN BY A HUMAN OBSERVER. ASOS STATION CLOUDINESS IS BASED ON TIME–AVERAGED CEILOMETER DATA FOR CLOUDS AT OR BELOW 12,000 FEET AND ON SATELLITE DATA FOR CLOUDS ABOVE 12,000 FEET.

THE NUMBER OF DAYS WITH CLEAR, PARTLY CLOUDY, AND CLOUDY CONDITIONS FOR ASOS STATIONS IS THE SUM OF THE CEILOMETER AND SATELLITE DATA FOR THE SUNRISE TO SUNSET PERIOD.

GENERAL CONTINUED:

CLEAR INDICATES 0–2 OKTAS, PARTLY CLOUDY INDICATES 3–6 OKTAS, AND CLOUDY INDICATES 7 OR 8 OKTAS. WHEN AT LEAST ONE OF THE ELEMENTS (CEILOMETER OR SATELLITE) IS MISSING, THE DAILY CLOUDINESS IS NOT COMPUTED.

WIND DIRECTION IS RECORDED IN TENS OF DEGREES (2 DIGITS) CLOCKWISE FROM TRUE NORTH. "00" INDICATES CALM. "36" INDICATES TRUE NORTH.

RESULTANT WIND IS THE VECTOR AVERAGE OF THE SPEED AND DIRECTION.

AVERAGE TEMPERATURE IS THE SUM OF THE MEAN DAILY MAXIMUM AND MINIMUM TEMPERATURE DIVIDED BY 2.

SNOWFALL DATA COMPRISE ALL FORMS OF FROZEN PRECIPITATION, INCLUDING HAIL.

A HEATING (COOLING) DEGREE DAY IS THE DIFFERENCE BETWEEN THE AVERAGE DAILY TEMPERATURE AND 65 F.

DRY BULB IS THE TEMPERATURE OF THE AMBIENT AIR.

DEW POINT IS THE TEMPERATURE TO WHICH THE AIR MUST BE COOLED TO ACHIEVE 100 PERCENT RELATIVE HUMIDITY.

WET BULB IS THE TEMPERATURE THE AIR WOULD HAVE IF THE MOISTURE CONTENT WAS INCREASED TO 100 PERCENT RELATIVE HUMIDITY.

ON JULY 1, 1996, THE NATIONAL WEATHER SERVICE BEGAN USING THE "METAR" OBSERVATION CODE THAT WAS ALREADY EMPLOYED BY MOST OTHER NATIONS OF THE WORLD. THE MOST NOTICEABLE DIFFERENCE IN THIS ANNUAL PUBLICATION WILL BE THE CHANGE IN UNITS FROM TENTHS TO EIGHTS (OKTAS) FOR REPORTING THE AMOUNT OF SKY COVER.

2001 Burlington, Vermont (BTV)

HEATING DEGREE DAYS (base 65 F) 2001 BURLINGTON, VT (BTV)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972-73 26 69 212 694 982 1310 1344 1410 855 608 345 86 7941
1973-74 10 17 256 480 825 1160 1431 1378 1101 618 430 37 7743
1974-75 2 6 224 665 858 1128 1276 1236 1141 831 152 82 7601
1975-76 0 45 208 448 681 1385 1669 1168 973 545 331 50 7503
1976-77 20 68 254 654 954 1505 1667 1240 842 590 223 89 8106
1977-78 24 53 207 564 740 1314 1539 1547 1202 781 225 90 8286
1978-79 49 38 295 571 897 1227 1452 1610 866 641 224 90 7960
1979-80 23 65 213 528 703 1107 1350 1371 1043 550 204 91 7248
1980-81 10 3 240 611 976 1545 1738 894 969 544 239 43 7812
1981-82 13 36 204 617 837 1224 1716 1277 1069 643 255 133 8024
1982-83 30 54 124 455 676 1021 1356 1188 983 675 367 77 7006
1983-84 19 36 148 518 803 1317 1500 1044 1331 602 395 68 7781
1984-85 6 24 241 460 792 1068 1592 1185 1029 615 296 118 7426
1985-86 11 42 169 489 835 1344 1436 1361 966 492 219 113 7477
1986-87 40 60 215 553 906 1144 1446 1397 975 488 328 48 7600
1987-88 19 66 185 584 833 1125 1389 1260 1088 614 236 136 7535
1988-89 15 52 212 635 755 1298 1273 1265 1128 691 188 45 7557
1989-90 2 43 164 451 849 1776 1084 1156 961 577 370 63 7496
1990-91 19 10 180 480 758 1074 1424 1072 954 475 206 59 6711
1991-92 7 11 240 451 813 1266 1434 1327 1187 674 277 83 7770
1992-93 49 33 197 597 843 1137 1335 1517 1159 584 256 80 7787
1993-94 3 12 211 579 839 1243 1793 1385 1073 609 328 48 8123
1994-95 1 57 168 467 711 1118 1145 1283 925 733 268 36 6912
1995-96 0 21 232 330 885 1326 1466 1262 1123 659 336 27 7667
1996-97 11 10 138 542 960 995 1416 1113 1173 701 412 31 7502
1997-98 17 20 205 564 889 1208 1306 1039 947 552 115 81 6943
1998-99 8 19 129 473 754 1017 1418 1120 1053 606 184 31 6812
1999-00 1 20 113 578 666 1119 1448 1235 879 663 263 108 7093
2000-01 28 28 209 498 828 1399 1385 1193 1169 649 206 49 7641
2001- 32 10 152 431 670 998

2001 Burlington, Vermont (BTV)

COOLING DEGREE DAYS (base 65 F) 2001 BURLINGTON, VT (BTV)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 0 0 0 0 14 64 169 81 30 0 0 0 358
1973 0 0 0 3 0 149 187 243 68 0 0 0 650
1974 0 0 0 5 9 89 171 140 27 1 0 0 442
1975 0 0 0 0 75 131 306 181 5 1 0 0 699
1976 0 0 0 24 19 185 135 97 23 0 0 0 483
1977 0 0 0 7 75 86 174 138 27 0 0 0 507
1978 0 0 0 0 79 64 194 146 6 0 0 0 489
1979 0 0 0 2 29 106 253 101 27 13 0 0 531
1980 0 0 0 0 24 78 189 184 34 0 0 0 509
1981 0 0 0 2 35 85 211 110 39 0 0 0 482
1982 0 0 0 1 24 11 179 90 51 0 0 0 356
1983 0 0 0 0 0 121 223 155 92 6 0 0 597
1984 0 0 0 0 7 106 175 217 15 3 0 0 523
1985 0 0 0 0 15 25 160 123 34 0 0 0 357
1986 0 0 0 4 19 38 156 104 14 0 0 0 335
1987 0 0 0 3 42 92 228 126 30 0 0 0 521
1988 0 0 0 0 19 96 274 238 15 3 0 0 645
1989 0 0 0 0 28 117 216 134 63 0 0 0 558
1990 0 0 0 16 1 95 189 165 18 6 0 0 490
1991 0 0 0 5 35 92 182 186 32 6 0 0 538
1992 0 0 0 3 21 71 91 121 61 0 0 0 368
1993 0 0 0 0 2 79 235 198 39 0 0 0 553
1994 0 0 0 2 17 165 293 110 14 0 0 0 601
1995 0 0 0 0 8 179 306 182 12 0 0 0 687
1996 0 0 0 0 17 72 124 139 56 0 0 0 408
1997 0 0 0 0 0 108 142 82 17 0 0 0 349
1998 0 0 2 0 27 121 141 134 33 1 0 0 459
1999 0 0 0 0 29 207 295 125 106 0 0 0 762
2000 0 0 0 0 12 74 112 118 31 1 0 0 348
2001 0 0 0 0 17 122 132 251 49 6 0 0 577

2001 Burlington, Vermont (BTV)

SNOWFALL (inches) 2001 BURLINGTON, VT (BTV)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972-73 0.0 0.0 0.0 T 12.2 39.0 11.4 18.5 2.3 6.3 0.0 0.0 89.7
1973-74 0.0 0.0 0.0 0.1 2.6 24.1 21.5 9.9 20.9 16.8 0.0 0.0 95.9
1974-75 0.0 0.0 0.0 0.1 11.5 16.8 14.8 22.0 12.4 13.3 0.0 0.0 90.9
1975-76 0.0 0.0 0.0 T 5.3 16.0 28.3 20.4 18.8 0.9 T 0.0 89.7
1976-77 0.0 0.0 0.0 0.9 13.3 11.5 24.2 16.4 9.6 1.8 T 0.0 77.7
1977-78 0.0 0.0 0.0 0.0 16.0 22.6 42.4 4.0 12.5 1.9 T 0.0 99.4
1978-79 0.0 0.0 0.0 T 5.7 24.1 37.9 6.6 1.6 8.4 0.0 0.0 84.3
1979-80 0.0 0.0 0.0 1.5 0.4 6.0 3.0 11.6 16.8 0.3 0.0 0.0 39.6
1980-81 0.0 0.0 0.0 T 12.2 17.5 8.7 11.9 13.3 1.1 0.0 0.0 64.7
1981-82 0.0 0.0 0.0 T 3.9 32.8 19.4 8.3 13.0 4.1 0.0 0.0 81.5
1982-83 0.0 0.0 0.0 T 0.8 5.0 22.5 18.3 11.9 21.3 0.7 0.0 80.5
1983-84 0.0 0.0 0.0 T 4.7 14.4 15.2 13.7 16.1 0.4 T 0.0 64.5
1984-85 0.0 0.0 0.0 0.0 6.0 29.3 25.9 10.9 16.6 2.7 0.0 0.0 91.4
1985-86 0.0 0.0 0.0 T 4.6 21.3 33.6 18.3 8.4 T T 0.0 86.2
1986-87 0.0 0.0 0.0 T 10.5 7.7 34.4 7.0 6.0 2.1 0.0 0.0 67.7
1987-88 0.0 0.0 0.0 0.6 6.5 12.4 9.2 26.9 6.4 2.4 0.0 0.0 64.4
1988-89 0.0 0.0 0.0 0.3 0.6 12.4 6.6 8.5 9.7 2.3 0.0 0.0 40.4
1989-90 T 0.0 0.0 0.0 5.6 20.7 17.6 20.5 10.2 2.1 0.0 0.0 76.7
1990-91 0.0 0.0 T T 7.3 10.3 17.8 3.9 3.2 T 0.0 0.0 42.5
1991-92 0.0 0.0 T T 2.3 14.9 12.2 27.2 14.0 8.6 0.0 0.0 79.2
1992-93 0.0 0.0 0.1 T 2.9 2.6 24.8 33.8 39.9 12.8 0.0 0.0 116.9
1993-94 0.0 0.0 0.0 1.3 7.9 9.1 38.6 15.9 26.6 7.8 T 0.0 107.2
1994-95 0.0 0.0 0.0 0.0 5.1 4.3 8.7 26.8 10.7 4.9 0.0 0.0 60.5
1995-96 0.0 0.0 0.0 0.1 7.3 44.0 19.0 4.5 11.5 12.4 0.3 0.0 99.1
1996-97 0.0 0.0 0.0 T 14.3 13.7 22.0 8.8 27.0 9.1 T 0.0 94.9
1997-98 0.0 0.0 0.0 0.6 15.5 20.6 25.1 10.3 21.5 0.3 0.0 0.0 93.9
1998-99 0.0 0.0 0.0 T 2.4 4.4 30.4 10.8 22.7 T 0.0 0.0 70.7
1999-00 0.0 0.0 0.0 T 0.7 2.3 21.9 23.1 9.3 19.1 0.0 0.0 76.4
2000-01 T 0.0 0.0 3.0 8.7 32.8 15.7 14.4 47.6 0.2 T 0.0 122.4
2001- 0.0 T 0.0 T 1.8 13.9
POR=57 YRS T 0.0 0.0 0.2 6.5 18.0 19.0 16.5 13.6 4.2 0.5 0.0 78.5



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