2001 RICHMOND, VIRGINIA (RIC)



Richmond is located in east–central Virginia at the head of navigation on the James River and along a line separating the Coastal Plains (Tidewater Virginia) from the Piedmont. The Blue Ridge Mountains lie about 90 miles to the west and the Chesapeake Bay 60 miles to the east. Elevations range from a few feet above sea level along the river to a little over 300 feet in parts of the western section of the city.

The climate might be classified as modified continental. Summers are warm and humid and winters generally mild. The mountains to the west act as a partial barrier to outbreaks of cold, continental air in winter. The cold winter air is delayed long enough to be modified, then further warmed as it subsides in its approach to Richmond. The open waters of the Chesapeake Bay and Atlantic Ocean contribute to the humid summers and mild winters. The coldest weather normally occurs in late December and January, when low temperatures usually average in the upper 20s, and the high temperatures in the upper 40s. Temperatures seldom lower to zero, but there have been several occurrences of below zero temperatures. Summertime high temperatures above 100 degrees are not uncommon, but do not occur every year.

Precipitation is rather uniformly distributed throughout the year. However, dry periods lasting several weeks do occur, especially in autumn when long periods of pleasant, mild weather are most common. There is considerable variability in total monthly amounts from year to year. Snow usually remains on the ground only one or two days at a time. Ice storms (freezing rain or glaze) are not uncommon, but they are seldom severe enough to do any considerable damage. A notable exception was the spectacular glaze storm of January 27–28, 1943, when nearly 1 inch of ice accumulation caused heavy damage to trees and overhead transmission lines.

The James River reaches tidewater at Richmond where flooding may occur in every month of the year, most frequently in March and least in July. Hurricanes and tropical storms have been responsible for most of the flooding during the summer and early fall months. Hurricanes passing near Richmond have produced record rainfalls. In 1955, three hurricanes brought record rainfall to Richmond within a six–week period. The most noteworthy of these were Hurricanes Connie and Diane that brought heavy rains five days apart.

Damaging storms occur mainly from snow and freezing rain in winter and from hurricanes, tornadoes, and severe thunderstorms in other seasons. Damage may be from wind, flooding, or rain, or from any combination of these. Tornadoes are infrequent but some notable occurrences have been observed within the Richmond area.

Based on the 1951–1980 period, the average first occurrence of 32 degrees Fahrenheit in the fall is October 26 and the average last occurrence in the spring is April 10.

NORMALS, MEANS, AND EXTREMES

RICHMOND, VA (RIC)

LATITUDE:    LONGITUDE:     ELEVATION (FT):    TIME ZONE:    WBAN: 13740

37 30′ 40″ N  77 19′ 24″ W  GRND: 164  BARO: 167  EASTERN (UTC + 5)

2001 Richmond, Virginia (RIC)

ELEMENT POR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR
TEMPERATURE F NORMAL DAILY MAXIMUM 30 45.7 49.2 59.5 70.0 77.8 85.1 88.4 87.1 80.9 70.7 61.3 50.2 68.8
MEAN DAILY MAXIMUM 81 47.4 50.3 58.9 69.3 77.6 85.1 88.3 86.5 80.8 70.6 60.4 50.0 68.8
HIGHEST DAILY MAXIMUM 72 80 83 93 96 100 104 105 102 103 99 86 81 105
YEAR OF OCCURRENCE 1950 1932 1938 1990 1941 1952 1977 1983 1954 1941 1993 1998 JUL 1977
MEAN OF EXTREME MAXS. 81 69.4 71.2 80.2 87.8 91.1 96.0 97.5 95.9 93.1 85.5 77.8 70.1 84.6
NORMAL DAILY MINIMUM 30 25.7 28.1 36.3 44.6 54.2 62.7 67.5 66.4 59.0 46.5 37.9 29.9 46.6
MEAN DAILY MINIMUM 81 28.4 30.0 36.6 45.4 54.7 63.5 68.0 66.6 60.1 47.8 38.4 30.9 47.5
LOWEST DAILY MINIMUM 72 -12 -10 11 23 31 40 51 46 35 21 10 -1 -12
YEAR OF OCCURRENCE 1940 1936 1960 1985 1956 1967 1965 1934 1974 1962 1933 1942 JAN 1940
MEAN OF EXTREME MINS. 81 10.2 14.2 21.6 30.9 41.0 51.1 57.8 55.6 45.4 32.4 22.7 14.6 33.1
NORMAL DRY BULB 30 35.7 38.7 48.0 57.3 66.0 73.9 78.0 76.8 70.0 58.6 49.6 40.1 57.7
MEAN DRY BULB 81 38.0 40.1 47.8 57.4 66.2 74.3 78.2 76.6 70.5 59.2 49.5 40.4 58.2
MEAN WET BULB 17 34.0 36.7 41.9 50.5 59.4 67.3 71.5 66.0 63.6 53.7 44.9 36.8 52.2
MEAN DEW POINT 17 27.0 29.1 33.9 43.0 54.3 63.2 68.1 63.1 59.9 48.7 38.6 30.0 46.6
NORMAL NO. DAYS WITH:
MAXIMUM 90 30 0.0 0.0 0.1 0.8 2.3 8.7 13.8 11.0 4.1 0.3 0.0 0.0 41.1
MAXIMUM 32 30 4.3 1.7 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 7.6
MINIMUM 32 30 23.0 19.5 10.8 2.3 0.1 0.0 0.0 0.0 0.0 2.1 9.4 19.2 86.4
MINIMUM 0 30 0.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4
H/C NORMAL HEATING DEG. DAYS 30 908 736 527 241 61 0 0 0 23 233 462 772 3963
NORMAL COOLING DEG. DAYS 30 0 0 0 10 92 270 403 366 173 34 0 0 1348
RH NORMAL (PERCENT) 30 68 66 63 61 70 72 75 77 77 74 69 69 70
HOUR 01 LST 30 75 73 72 73 83 86 88 90 90 86 79 76 81
HOUR 07 LST 30 79 78 78 76 81 83 86 90 90 89 84 80 83
HOUR 13 LST 30 56 53 49 45 52 54 57 58 57 52 51 55 53
HOUR 19 LST 30 65 62 57 53 63 66 69 74 77 75 68 68 66
S PERCENT POSSIBLE SUNSHINE 46 54 58 62 66 65 69 68 66 65 63 59 54 62
W/O MEAN NO. DAYS WITH:
HEAVY FOG(VISBY 1/4 MI) 73 2.7 2.1 1.7 1.6 1.8 1.5 2.0 2.4 2.9 3.3 2.3 2.8 27.1
THUNDERSTORMS 65 0.2 0.4 1.6 2.4 5.3 6.6 8.2 6.2 2.9 1.0 0.6 0.2 35.6
CLOUDINESS MEAN:
SUNRISE-SUNSET (OKTAS) 1 5.6 5.6 3.2
MIDNIGHT-MIDNIGHT (OKTAS) 1 5.6
MEAN NO. DAYS WITH:
CLEAR 1 2.0 1.0 9.0 9.0 10.0
PARTLY CLOUDY 1 1.0 5.0 4.0 8.0
CLOUDY 1 7.0 4.0 10.0 8.0 1.0
PR MEAN STATION PRESSURE(IN) 28 29.91 29.89 29.85 29.81 29.81 29.81 29.83 29.86 29.89 29.92 29.92 29.93 29.87
MEAN SEA-LEVEL PRES. (IN) 17 30.12 30.11 30.05 29.99 30.00 29.99 30.01 30.04 30.08 30.12 30.14 30.14 30.07
WINDS MEAN SPEED (MPH) 43 8.3 8.7 9.3 9.2 7.9 7.5 7.1 6.6 7.0 7.2 7.7 7.9 7.9
PREVAIL. DIR (TENS OF DEGS) 26 01 01 36 19 19 20 19 19 36 36 19 36 19
MAXIMUM 2-MINUTE:
SPEED (MPH) 6 38 39 37 46 41 45 33 44 40 37 36 40 46
DIR. (TENS OF DEGS) 31 23 22 33 30 26 29 36 01 10 16 15 33
YEAR OF OCCURRENCE 2000 1997 1996 1999 1997 2000 1999 1996 1999 1996 1999 1996 APR 1999
MAXIMUM 5-SECOND:
SPEED (MPH) 6 48 49 49 56 60 55 44 59 53 46 46 48 60
DIR. (TENS OF DEGS) 31 26 22 25 28 27 29 32 08 10 16 16 28
YEAR OF OCCURRENCE 2000 1997 1996 1998 1996 2000 1999 2000 1996 1996 1999 1996 MAY 1996
PRECIPITATION NORMAL (IN) 30 3.24 3.16 3.61 2.96 3.84 3.62 5.03 4.40 3.34 3.53 3.17 3.26 43.16
MAXIMUM MONTHLY (IN) 64 7.97 5.97 8.65 7.31 8.87 9.24 18.87 14.10 16.60 9.39 7.64 7.07 18.87
YEAR OF OCCURRENCE 1978 1979 1984 1987 1972 1938 1945 1955 1999 1971 1959 1973 JUL 1945
MINIMUM MONTHLY (IN) 64 0.64 0.48 0.94 0.64 0.87 0.38 0.51 0.52 0.26 0.01 0.17 0.40 0.01
YEAR OF OCCURRENCE 1981 1978 1966 1963 1965 1980 1983 1943 1978 2000 2001 1980 OCT 2000
MAXIMUM IN 24 HOURS (IN) 64 3.31 2.67 3.43 2.97 3.08 4.61 5.73 8.79 6.52 6.50 4.07 3.16 8.79
YEAR OF OCCURRENCE 1962 1979 1992 1987 1981 1963 1969 1955 1999 1961 1956 1958 AUG 1955
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01 30 10.4 9.4 10.2 9.0 10.7 9.6 10.4 9.5 7.6 7.0 8.0 9.1 110.9
PRECIPITATION 1.00 30 0.8 0.7 0.8 0.6 1.0 0.9 1.4 1.3 1.0 1.2 0.8 0.7 11.2
SNOWFALL NORMAL (IN) 30 5.8 5.5 2.4 0.1 0.0 0.0 0.0 0.0 0.0 T 0.3 2.2 16.3
MAXIMUM MONTHLY (IN) 62 28.5 21.4 19.7 2.0 T 0.0 0.0 0.0 0.0 T 7.3 12.5 28.5
YEAR OF OCCURRENCE 1940 1983 1960 1940 1994 1979 1953 1958 JAN 1940
MAXIMUM IN 24 HOURS (IN) 62 21.6 16.8 12.1 2.0 T 0.0 0.0 0.0 0.0 T 7.3 7.5 21.6
YEAR OF OCCURRENCE 1940 1983 1962 1940 1994 1979 1953 1966 JAN 1940
MAXIMUM SNOW DEPTH (IN) 77 18 20 13 1 0 0 0 0 0 0 6 9 20
YEAR OF OCCURRENCE 1922 1922 1980 1964 1938 1958 FEB 1922
NORMAL NO. DAYS WITH:
SNOWFALL 1.0 30 1.5 1.4 0.6 0.* 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.7 4.3

2001 Richmond, Virginia (RIC)

PRECIPITATION (inches) 2001 RICHMOND, VA (RIC)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 1.43 5.15 2.11 3.35 8.87 8.82 5.80 3.84 3.35 7.89 5.82 2.91 59.34
1973 2.66 3.11 3.44 4.58 3.56 2.45 3.64 4.34 1.82 2.56 1.27 7.07 40.50
1974 3.21 2.54 3.79 1.58 3.02 1.80 2.25 6.84 4.83 0.39 1.23 4.22 35.70
1975 5.71 2.96 8.04 2.78 2.59 4.00 12.29 2.31 10.98 3.10 2.04 4.51 61.31
1976 3.39 1.35 2.14 1.08 3.76 2.85 2.63 1.35 4.78 6.99 1.88 2.56 34.76
1977 2.22 1.34 2.67 2.33 3.99 1.25 4.20 6.15 2.16 7.88 4.32 5.57 44.08
1978 7.97 0.48 5.67 4.31 3.92 5.26 4.24 5.93 0.26 1.21 4.57 3.80 47.62
1979 6.16 5.97 2.59 3.97 3.80 2.42 4.36 7.08 9.76 3.87 5.50 1.64 57.12
1980 6.05 1.01 5.49 4.28 4.68 0.38 5.18 2.15 2.37 6.96 2.18 0.40 41.13
1981 0.64 2.76 1.52 2.96 6.62 3.69 4.01 2.89 2.70 2.36 0.68 5.04 35.87
1982 2.76 4.44 3.74 2.97 3.48 3.97 9.21 4.39 2.55 2.90 2.70 3.37 46.48
1983 1.59 3.95 6.04 5.21 2.50 5.46 0.51 0.97 3.05 4.02 5.63 4.50 43.43
1984 3.98 3.97 8.65 5.92 4.52 2.01 3.55 4.58 1.86 2.14 3.34 1.52 46.04
1985 3.54 3.20 1.80 0.65 2.36 4.01 5.31 10.58 4.97 5.09 6.99 0.58 49.08
1986 2.69 2.67 1.16 1.16 3.15 1.30 7.01 6.75 0.63 2.43 2.46 5.15 36.56
1987 5.53 2.57 1.65 7.31 2.94 6.29 1.20 1.11 4.43 1.25 3.13 2.86 40.27
1988 2.53 3.08 1.98 2.55 4.81 2.25 7.50 2.95 1.74 2.74 4.34 0.79 37.26
1989 1.88 4.34 5.00 4.27 5.02 5.85 4.00 4.89 5.33 3.54 3.00 2.62 49.74
1990 2.84 2.38 2.54 2.81 6.85 0.97 6.74 5.76 1.92 3.90 1.70 3.52 41.93
1991 3.62 1.09 5.87 0.87 0.91 6.24 3.47 3.32 2.69 2.50 0.67 4.53 35.78
1992 1.57 2.89 5.87 2.21 4.95 2.28 5.68 6.40 2.35 1.94 2.62 2.79 41.55
1993 4.48 2.88 7.24 3.23 4.66 1.75 1.91 3.89 2.97 2.23 3.24 3.77 42.25
1994 3.10 4.38 7.92 2.70 2.49 1.73 7.46 2.54 3.99 2.56 3.99 0.95 43.81
1995 3.15 1.14 3.00 1.98 4.33 1.85 2.89 2.59 3.82 5.11 2.87 1.71 34.44
1996 4.65 2.97 2.71 2.88 3.18 4.35 6.51 4.40 6.87 7.18 3.52 4.91 54.13
1997 1.93 3.71 2.96 3.94 1.36 2.21 4.85 1.41 0.82 3.25 5.33 2.36 34.13
1998 6.85 5.76 6.72 4.32 3.72 4.41 2.37 1.89 3.94 0.47 1.30 5.00 46.75
1999 4.70 1.47 4.04 2.60 2.75 6.29 2.77 2.00 16.60 2.25 1.01 1.72 48.20
2000 3.96 1.60 3.67 4.78 3.03 6.07 4.05 8.28 3.60 0.01 1.72 2.38 43.15
2001 2.06 2.55 3.77 2.14 2.03 6.53 2.73 5.08 2.14 0.65 0.17 1.67 31.52
POR=64 YRS 3.22 2.99 3.75 2.99 3.66 3.71 5.18 4.62 3.71 3.21 3.03 3.10 43.17

2001 Richmond, Virginia (RIC)

AVERAGE TEMPERATURE (F) 2001 RICHMOND, VA (RIC)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 40.7 37.6 47.2 56.2 64.6 70.1 77.1 75.2 70.1 55.8 47.9 45.9 57.4
1973 37.6 38.5 52.6 57.9 65.1 76.0 77.4 77.5 72.3 60.6 51.3 40.8 59.0
1974 45.8 40.1 50.4 59.9 65.8 70.6 76.9 75.7 67.4 55.4 48.5 41.7 58.2
1975 40.7 41.4 45.3 52.9 67.7 73.6 76.0 78.8 69.3 62.5 53.6 40.0 58.5
1976 35.1 48.5 52.6 60.5 65.2 74.6 77.3 75.7 68.7 54.4 42.7 36.7 57.7
1977 25.3 40.5 53.7 61.1 68.2 73.0 81.4 79.8 74.2 57.3 52.3 39.5 58.9
1978 33.4 30.3 44.5 57.3 65.5 74.7 77.5 80.1 72.9 58.3 52.5 42.5 57.5
1979 36.4 28.6 51.1 58.4 67.1 70.8 76.9 77.8 71.0 58.3 53.3 42.3 57.7
1980 38.8 36.0 47.4 61.1 68.3 72.8 80.0 80.7 74.7 56.9 46.2 38.6 58.5
1981 31.2 42.2 44.6 60.6 64.1 77.9 79.6 75.1 69.4 56.4 49.1 38.0 57.4
1982 31.6 41.7 49.1 55.9 70.4 73.4 78.6 75.0 69.8 59.2 51.9 46.1 58.6
1983 37.8 39.1 50.4 56.1 66.1 75.6 79.4 77.7 68.8 58.1 49.0 36.2 57.9
1984 32.6 44.5 43.6 55.8 65.4 77.7 76.0 77.0 67.5 66.1 46.6 47.7 58.4
1985 32.6 40.2 49.7 62.0 68.0 74.3 79.0 77.5 70.8 62.6 56.6 37.8 59.3
1986 36.2 39.3 50.0 59.2 66.9 76.1 80.9 74.2 70.8 61.8 49.1 40.9 58.8
1987 34.7 37.0 47.1 54.3 67.3 75.8 81.3 78.5 72.3 52.9 51.3 43.0 58.0
1988 32.3 39.1 47.9 56.0 65.8 72.8 79.9 79.8 68.4 53.6 50.6 39.2 57.1
1989 42.3 39.6 47.9 55.8 64.1 76.1 77.7 75.3 70.8 60.2 49.3 31.3 57.5
1990 46.3 48.0 52.1 57.9 65.8 75.0 79.9 76.3 69.5 63.1 52.6 46.3 61.1
1991 40.2 44.0 50.8 60.2 72.1 75.3 80.7 78.6 71.6 59.9 49.6 44.3 60.6
1992 40.7 42.7 47.2 57.8 61.7 70.8 79.5 73.7 70.3 56.3 50.6 40.9 57.7
1993 41.4 37.8 45.9 55.9 67.7 75.0 82.5 78.5 72.5 58.6 50.9 39.0 58.8
1994 33.4 40.2 48.9 63.2 63.2 78.0 81.1 75.4 69.2 57.6 52.6 45.6 59.0
1995 40.7 38.7 50.2 58.1 65.8 74.1 80.8 78.9 69.1 61.1 44.2 35.6 58.1
1996 34.1 37.8 43.2 57.9 64.8 75.1 76.4 74.3 70.1 58.9 43.2 43.8 56.6
1997 37.7 43.7 49.6 53.6 62.9 71.4 77.8 75.8 70.3 58.9 46.5 39.9 57.3
1998 43.2 44.2 48.5 58.0 67.4 74.0 78.3 78.3 74.2 59.7 49.5 44.2 60.0
1999 42.0 42.2 45.2 57.7 65.5 72.3 79.6 77.9 68.5 57.2 52.9 42.4 58.6
2000 36.3 43.4 52.0 56.4 68.0 75.4 74.7 74.9 67.5 59.7 46.1 33.0 57.3
2001 37.1 42.3 45.2 58.2 65.2 75.0 74.9 78.2 67.8 59.1 54.6 46.0 58.6
POR=72 YRS 37.6 39.8 47.4 57.2 66.2 74.2 78.1 76.4 70.2 58.8 49.2 40.1 57.9

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 Richmond, Virginia (RIC)

HEATING DEGREE DAYS (base 65 F) 2001 RICHMOND, VA (RIC)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972-73 0 0 17 285 513 588 843 735 394 247 79 0 3701
1973-74 0 0 5 163 414 744 589 691 455 204 75 5 3345
1974-75 0 0 62 310 513 715 746 654 604 368 44 1 4017
1975-76 0 0 27 121 356 770 917 480 386 227 78 11 3373
1976-77 0 1 15 332 660 869 1227 680 366 176 42 7 4375
1977-78 0 0 4 259 401 784 974 964 627 235 88 5 4341
1978-79 0 0 16 214 366 694 876 1011 439 218 44 4 3882
1979-80 0 0 8 242 353 698 806 835 541 135 47 2 3667
1980-81 0 0 14 267 557 813 1042 633 626 171 107 0 4230
1981-82 0 1 29 273 473 834 1029 645 486 280 6 1 4057
1982-83 0 6 10 213 399 585 836 718 445 282 69 2 3565
1983-84 0 1 86 236 475 887 994 589 657 282 93 3 4303
1984-85 0 0 73 57 546 531 997 692 484 177 35 5 3597
1985-86 0 0 31 114 257 838 886 713 465 187 78 3 3572
1986-87 0 16 24 172 476 741 931 777 550 317 57 0 4061
1987-88 0 0 5 370 409 677 1008 746 527 279 79 32 4132
1988-89 0 0 27 361 425 794 696 709 546 293 108 0 3959
1989-90 0 3 38 181 468 1036 574 472 436 258 50 3 3519
1990-91 0 0 33 146 365 574 762 582 443 193 27 1 3126
1991-92 0 0 25 190 458 637 749 640 545 261 142 10 3657
1992-93 0 0 37 275 427 739 724 757 585 280 24 0 3848
1993-94 0 0 26 213 436 799 973 687 497 130 120 0 3881
1994-95 0 0 11 232 365 595 750 731 453 236 72 1 3446
1995-96 0 0 28 166 620 905 952 782 669 247 122 8 4499
1996-97 0 0 10 193 652 654 840 589 472 337 117 45 3909
1997-98 0 0 19 247 547 771 667 575 536 232 50 7 3651
1998-99 0 0 10 173 457 652 710 631 606 237 60 7 3543
1999-00 0 0 29 249 362 693 882 620 404 257 45 2 3543
2000-01 0 0 61 190 561 983 858 631 605 244 67 0 4200
2001- 0 0 57 213 312 582

2001 Richmond, Virginia (RIC)

COOLING DEGREE DAYS (base 65 F) 2001 RICHMOND, VA (RIC)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 0 0 7 30 52 180 381 326 178 9 8 0 1171
1973 0 0 13 42 91 338 391 395 231 32 9 2 1544
1974 0 0 10 58 106 180 377 340 141 21 26 0 1259
1975 0 0 0 16 135 267 348 433 165 51 18 0 1433
1976 0 8 9 99 91 307 389 337 133 12 0 0 1385
1977 0 0 22 66 148 258 513 467 289 24 27 0 1814
1978 0 0 0 12 112 302 393 475 263 15 0 1 1573
1979 0 0 16 30 117 188 374 404 195 42 9 0 1375
1980 0 0 1 25 157 243 472 494 313 23 1 0 1729
1981 0 0 1 45 89 395 458 319 169 16 0 0 1492
1982 0 0 0 13 181 259 428 323 157 43 13 7 1424
1983 0 0 0 23 108 325 452 405 207 27 0 0 1547
1984 0 0 0 10 114 392 346 381 154 100 0 2 1499
1985 0 4 20 94 139 290 441 392 213 51 10 0 1654
1986 0 0 8 19 142 344 498 308 205 79 6 0 1609
1987 0 0 0 2 136 329 513 427 227 0 3 0 1637
1988 0 0 3 16 108 269 466 465 137 12 0 0 1476
1989 0 3 24 27 88 341 403 331 218 42 4 0 1481
1990 0 1 43 51 81 312 470 356 177 96 0 2 1589
1991 0 0 10 53 254 316 494 428 227 40 3 0 1825
1992 0 0 0 51 48 192 457 275 202 12 3 0 1240
1993 0 0 0 14 112 307 547 426 261 20 18 0 1705
1994 0 0 5 80 70 396 507 332 142 9 2 2 1545
1995 1 0 0 35 105 281 495 437 157 52 3 0 1566
1996 0 0 0 40 123 315 360 293 173 12 0 0 1316
1997 0 0 4 2 59 244 406 341 182 65 0 0 1303
1998 2 0 32 26 131 282 420 418 292 15 0 12 1630
1999 1 0 0 24 82 231 460 409 140 13 2 0 1362
2000 0 0 5 6 143 320 305 313 141 33 0 0 1266
2001 0 0 0 45 79 307 314 414 149 38 7 0 1353

2001 Richmond, Virginia (RIC)

SNOWFALL (inches) 2001 RICHMOND, VA (RIC)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972-73 0.0 0.0 0.0 T 0.6 0.0 4.3 0.4 1.4 0.0 0.0 0.0 6.7
1973-74 0.0 0.0 0.0 0.0 0.0 9.9 T 5.0 T 0.0 0.0 0.0 14.9
1974-75 0.0 0.0 0.0 0.0 0.0 T 2.7 2.9 0.4 0.0 0.0 0.0 6.0
1975-76 0.0 0.0 0.0 0.0 0.0 T 0.2 T 1.0 0.0 0.0 0.0 1.2
1976-77 0.0 0.0 0.0 0.0 1.0 1.7 11.1 T 0.0 0.0 0.0 0.0 13.8
1977-78 0.0 0.0 0.0 0.0 T T 1.3 5.1 5.0 0.0 0.0 0.0 11.4
1978-79 0.0 0.0 0.0 0.0 0.0 0.0 0.7 19.5 T 0.0 0.0 0.0 20.2
1979-80 0.0 0.0 0.0 T 0.0 T 16.6 7.0 15.0 0.0 0.0 0.0 38.6
1980-81 0.0 0.0 0.0 0.0 0.0 0.2 0.6 0.0 0.2 0.0 0.0 0.0 1.0
1981-82 0.0 0.0 0.0 0.0 T 1.9 8.3 10.8 T 0.2 0.0 0.0 21.2
1982-83 0.0 0.0 0.0 0.0 0.0 7.9 0.1 21.4 0.0 T 0.0 0.0 29.4
1983-84 0.0 0.0 0.0 0.0 0.1 T 1.1 2.8 0.3 0.0 0.0 0.0 4.3
1984-85 0.0 0.0 0.0 0.0 0.0 T 8.3 T T 0.0 0.0 0.0 8.3
1985-86 0.0 0.0 0.0 0.0 0.0 1.3 3.3 4.4 T T 0.0 0.0 9.0
1986-87 0.0 0.0 0.0 0.0 0.0 0.0 15.8 5.3 0.7 T 0.0 0.0 21.8
1987-88 0.0 0.0 0.0 0.0 4.5 T 8.1 T T T 0.0 0.0 12.6
1988-89 0.0 0.0 0.0 0.0 0.0 1.8 T 13.6 T T T 0.0 15.4
1989-90 0.0 0.0 0.0 0.0 1.1 9.9 0.0 T T 0.2 0.0 0.0 11.2
1990-91 0.0 0.0 0.0 0.0 0.0 T T 1.9 T 0.0 0.0 0.0 1.9
1991-92 0.0 0.0 0.0 0.0 0.1 T 0.0 0.8 T T 0.0 0.0 0.9
1992-93 0.0 0.0 0.0 0.0 0.0 0.0 0.5 5.3 3.5 T 0.0 0.0 9.3
1993-94 0.0 0.0 0.0 0.0 0.0 5.1 2.2 1.7 0.7 0.0 T 0.0 9.7
1994-95 0.0 0.0 0.0 0.0 0.0 T 3.1 T 0.8 0.0 0.0 0.0 3.9
1995-96 0.0 0.0 0.0 0.0 T 12.3
1996-97 T 1.0 0.7 1.0 T T 0.0 0.0
1997-98 0.0 0.0 0.0 0.0
1998-99
1999-00 15.2 0.2
2000-01 0.3 2.5 0.5 0.0 0.0 0.0
2001- 0.0 0.0 0.0 0.0 0.0 0.0
POR=60 YRS 0.0 0.0 0.0 T 0.4 2.0 4.6 3.9 2.4 0.1 T 0.0 13.4



User Contributions:

Tangie
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Jan 19, 2012 @ 2:02 am
I'm not quite sure how to say this; you made it exrtmeely easy for me!

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2001 Richmond, Virginia (RIC) forum