2001 CHARLESTON, SOUTH CAROLINA (CHS)



Charleston is a peninsula city bounded on the west and south by the Ashley River, on the east by the Cooper River, and on the southeast by a spacious harbor. Weather records for the airport are from a site some 10 miles inland. The terrain is generally level, ranging in elevation from sea level to 20 feet on the peninsula, with gradual increases in elevation toward inland areas. The soil is sandy to sandy loam with lesser amounts of loam. The drainage varies from good to poor. Because of the very low elevation, a considerable portion of this community and the nearby coastal islands are vulnerable to tidal flooding.

The climate is temperate, modified considerably by the nearness to the ocean. The marine influence is noticeable during winter when the low temperatures are sometimes 10–15 degrees higher on the peninsula than at the airport. By the same token, high temperatures are generally a few degrees lower on the peninsula. The prevailing winds are northerly in the fall and winter, southerly in the spring and summer.

Summer is warm and humid. Temperatures of 100 degrees or more are infrequent. High temperatures are generally several degrees lower along the coast than inland due to the cooling effect of the sea breeze. Summer is the rainiest season with 41 percent of the annual total. The rain, except during occasional tropical storms, generally occurs as showers or thunderstorms.

The fall season passes through the warm Indian Summer period to the pre–winter cold spells which begin late in November. From late September to early November the weather is mostly sunny and temperature extremes are rare. Late summer and early fall is the period of maximum threat to the South Carolina coast from hurricanes.

The winter months, December through February, are mild with periods of rain. However, the winter rainfall is generally of a more uniform type. There is some chance of a snow flurry, with the best probability of its occurrence in January, but a significant amount is rarely measured. An average winter would experience less than one cold wave and severe freeze. Temperatures of 20 degrees or less on the peninsula and along the coast are very unusual.

The most spectacular time of the year, weatherwise, is spring with its rapid changes from windy and cold in March to warm and pleasant in May. Severe local storms are more likely to occur in spring than in summer.

The average occurrence of the first freeze in the fall is early December, and the average last freeze is late February, giving an average growing season of about 294 days.

NORMALS, MEANS, AND EXTREMES

CHARLESTON, SC (CHS)

LATITUDE:    LONGITUDE:     ELEVATION (FT):    TIME ZONE:    WBAN: 13880

32 53′ 55″ N  80 02′ 27″ W  GRND:  45  BARO: � 0;48  EASTERN (UTC + 5)

2001 Charleston, South Carolina (CHS)

ELEMENT POR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR
TEMPERATURE F NORMAL DAILY MAXIMUM 30 57.8 61.0 68.6 75.8 82.7 87.6 90.2 89.0 84.9 77.2 69.5 61.6 75.5
MEAN DAILY MAXIMUM 56 59.3 62.3 68.5 76.2 82.9 87.6 90.1 89.1 84.6 76.9 69.0 61.3 75.6
HIGHEST DAILY MAXIMUM 59 83 87 90 94 98 103 104 105 99 94 88 83 105
YEAR OF OCCURRENCE 1950 1989 1974 1989 1989 1944 1986 1999 1944 1986 1961 1972 AUG 1999
MEAN OF EXTREME MAXS. 56 75.5 78.1 82.8 88.3 92.6 96.4 96.6 95.9 92.4 86.9 81.6 76.9 87.0
NORMAL DAILY MINIMUM 30 37.7 40.0 47.5 53.9 62.9 69.1 72.7 72.2 67.9 56.3 47.2 40.7 55.7
MEAN DAILY MINIMUM 56 37.9 40.0 46.1 53.1 61.8 68.7 72.2 71.5 67.0 55.6 46.2 39.4 55.0
LOWEST DAILY MINIMUM 59 6 12 15 29 36 50 58 56 42 27 15 8 6
YEAR OF OCCURRENCE 1985 1973 1980 1944 1963 1972 1952 1979 1967 1976 1950 1962 JAN 1985
MEAN OF EXTREME MINS. 56 21.1 23.8 29.4 37.8 48.2 58.6 65.7 64.3 55.1 38.9 29.4 22.7 41.2
NORMAL DRY BULB 30 47.8 50.5 58.1 64.9 72.8 78.3 81.5 80.6 76.4 66.8 58.4 51.2 65.6
MEAN DRY BULB 56 48.6 51.1 57.3 64.7 72.5 78.1 81.1 80.4 75.8 66.3 57.7 50.4 65.3
MEAN WET BULB 18 44.5 47.5 51.8 57.9 66.0 72.3 75.8 74.8 70.3 61.5 54.3 46.6 60.3
MEAN DEW POINT 18 38.6 41.5 45.5 52.1 61.7 69.4 73.2 72.4 67.4 57.5 49.9 41.2 55.9
NORMAL NO. DAYS WITH:
MAXIMUM 90 30 0.0 0.0 0.1 1.2 4.1 10.7 18.1 15.3 5.7 0.4 0.0 0.0 55.6
MAXIMUM 32 30 0.3 0.1 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5
MINIMUM 32 30 12.2 8.6 2.5 0.1 0.0 0.0 0.0 0.0 0.0 0.1 2.9 9.2 35.6
MINIMUM 0 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
H/C NORMAL HEATING DEG. DAYS 30 548 414 239 66 0 0 0 0 0 74 233 439 2013
NORMAL COOLING DEG. DAYS 30 15 8 25 63 242 399 512 484 342 130 35 11 2266
RH NORMAL (PERCENT) 30 70 67 68 68 72 75 77 79 78 74 73 72 73
HOUR 01 LST 30 78 77 80 81 86 87 88 89 89 86 84 80 84
HOUR 07 LST 30 80 79 82 83 85 85 86 89 89 87 85 82 84
HOUR 13 LST 30 55 52 50 47 53 58 60 63 61 54 52 55 55
HOUR 19 LST 30 68 64 64 62 68 71 74 77 77 75 74 71 70
S PERCENT POSSIBLE SUNSHINE 39 56 60 66 71 70 66 67 64 61 63 59 56 63
W/O MEAN NO. DAYS WITH:
HEAVY FOG(VISBY 1/4 MI) 52 4.1 2.2 2.4 2.1 2.2 1.5 0.7 1.2 1.9 2.5 3.6 3.7 28.1
THUNDERSTORMS 59 0.9 1.1 2.2 2.9 6.4 10.1 13.3 11.2 5.4 1.5 0.8 0.6 56.4
CLOUDINESS MEAN:
SUNRISE-SUNSET (OKTAS) 1 5.6 2.4 4.0
MIDNIGHT-MIDNIGHT (OKTAS) 1 5.6 4.0
MEAN NO. DAYS WITH:
CLEAR 1 3.0 4.0 11.0 13.0 9.0
PARTLY CLOUDY 1 1.0 2.0 3.0 4.0 11.0
CLOUDY 1 4.0 3.0 9.0 3.0 2.0
PR MEAN STATION PRESSURE(IN) 29 30.10 30.10 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.09 30.10 30.03
MEAN SEA-LEVEL PRES. (IN) 18 30.14 30.13 30.07 30.03 30.03 30.01 30.05 30.04 30.03 30.09 30.13 30.17 30.08
WINDS MEAN SPEED (MPH) 49 8.9 9.7 10.0 9.7 8.4 8.1 7.7 7.3 7.7 7.9 8.0 8.4 8.5
PREVAIL. DIR (TENS OF DEGS) 30 27 20 20 20 20 20 20 20 04 02 02 02 20
MAXIMUM 2-MINUTE:
SPEED (MPH) 6 36 33 39 38 33 44 36 38 51 39 32 38 51
DIR. (TENS OF DEGS) 31 19 26 27 24 17 36 27 36 21 20 26 36
YEAR OF OCCURRENCE 1996 2000 1997 2001 2000 1997 2000 1997 1999 1996 1996 2000 SEP 1999
MAXIMUM 5-SECOND:
SPEED (MPH) 6 45 47 52 49 45 51 55 48 67 56 39 48 67
DIR. (TENS OF DEGS) 18 25 24 26 02 18 11 26 36 21 20 25 36
YEAR OF OCCURRENCE 2001 1997 1997 2001 1999 1997 1999 1997 1999 1996 1996 2000 SEP 1999
PRECIPITATION NORMAL (IN) 30 3.45 3.30 4.34 2.67 4.01 6.43 6.84 7.22 4.73 2.90 2.49 3.15 51.53
MAXIMUM MONTHLY (IN) 59 8.92 10.17 11.11 9.50 9.28 27.24 18.46 16.99 17.31 12.11 7.35 7.09 27.24
YEAR OF OCCURRENCE 1993 1998 1983 1958 1957 1973 1964 1974 1945 1994 1972 1953 JUN 1973
MINIMUM MONTHLY (IN) 59 0.63 0.33 0.70 0.01 0.57 0.96 1.76 0.73 0.18 0.08 0.16 0.66 0.01
YEAR OF OCCURRENCE 1950 1947 1995 1972 2000 1970 1972 1980 1990 2000 1998 1984 APR 1972
MAXIMUM IN 24 HOURS (IN) 59 3.90 5.93 6.63 4.10 6.23 10.10 5.81 5.77 10.52 5.77 5.24 3.40 10.52
YEAR OF OCCURRENCE 1993 1998 1959 1958 1967 1973 1960 1964 1998 1944 1969 1978 SEP 1998
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01 30 10.0 8.9 9.4 7.1 8.7 11.1 12.4 13.2 9.3 5.7 6.7 8.4 110.9
PRECIPITATION 1.00 30 0.8 0.6 1.3 0.7 1.1 2.0 2.1 2.3 1.3 1.0 0.6 0.9 14.7
SNOWFALL NORMAL (IN) 30 0.1 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.0
MAXIMUM MONTHLY (IN) 54 1.0 7.1 2.0 T 0.0 T T 0.0 0.0 0.0 T 8.0 8.0
YEAR OF OCCURRENCE 1977 1973 1969 1985 1995 1993 1995 1989 DEC 1989
MAXIMUM IN 24 HOURS (IN) 54 0.8 5.9 2.0 T 0.0 T T 0.0 0.0 0.0 T 6.6 6.6
YEAR OF OCCURRENCE 1966 1973 1969 1985 1995 1993 1995 1989 DEC 1989
MAXIMUM SNOW DEPTH (IN) 48 1 7 1 0 0 0 0 0 0 0 0 8 8
YEAR OF OCCURRENCE 1966 1973 1980 1989 DEC 1989
NORMAL NO. DAYS WITH:
SNOWFALL 1.0 30 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.3

2001 Charleston, South Carolina (CHS)

PRECIPITATION (inches) 2001 CHARLESTON, SC (CHS)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 4.13 5.18 2.52 0.01 5.67 5.29 1.76 4.52 1.82 0.25 7.35 4.36 42.86
1973 4.59 5.57 6.15 2.55 1.83 27.24 3.60 6.66 7.93 0.63 0.84 4.58 72.17
1974 1.42 2.96 3.04 0.86 4.82 9.45 3.09 16.99 4.80 0.40 3.78 3.00 54.61
1975 4.92 3.54 4.54 3.74 5.06 5.96 9.34 7.18 5.16 1.97 1.43 3.35 56.19
1976 1.62 0.95 2.33 0.62 8.87 5.59 4.48 5.22 6.03 4.10 3.57 5.12 48.50
1977 2.72 1.38 5.31 0.45 4.66 2.12 3.86 8.13 2.48 2.49 1.76 5.88 41.24
1978 4.31 1.82 3.25 1.97 4.68 3.42 6.19 4.01 5.06 0.18 1.87 4.13 40.89
1979 3.43 3.04 3.01 3.81 8.09 2.23 8.35 0.88 15.36 3.87 3.29 2.62 57.98
1980 3.99 1.25 7.99 3.43 5.85 3.15 6.97 0.73 2.60 1.52 2.19 1.25 40.92
1981 0.93 2.23 2.38 1.87 4.02 6.04 12.66 9.30 1.27 1.95 1.06 5.73 49.44
1982 2.18 3.64 1.26 6.51 3.04 9.16 5.40 4.10 3.92 2.42 1.19 4.20 47.02
1983 4.86 6.35 11.11 3.57 0.75 2.37 8.89 2.90 3.50 2.36 3.08 4.35 54.09
1984 5.12 3.51 5.63 6.30 6.89 2.96 4.87 1.96 5.27 1.67 1.39 0.66 46.23
1985 0.87 2.70 1.50 1.12 2.79 7.02 12.06 8.48 2.53 4.58 5.49 1.21 50.35
1986 2.05 4.17 2.67 0.83 0.93 2.51 5.07 13.41 4.60 2.95 4.03 5.21 48.43
1987 7.17 4.58 5.55 1.31 2.29 5.64 2.92 6.97 14.49 0.56 3.65 1.57 56.70
1988 2.76 2.38 1.78 3.21 1.86 2.32 4.13 11.88 9.72 0.73 1.08 0.72 42.57
1989 2.31 1.17 2.87 4.84 2.14 7.26 1.93 9.18 13.35 4.08 1.85 4.74 55.72
1990 3.96 1.68 6.63 1.65 1.91 3.12 5.95 6.32 0.18 7.29 3.75 2.69 45.13
1991 7.78 0.94 4.66 4.59 5.37 4.54 7.38 8.09 2.29 0.77 1.64 1.62 49.67
1992 4.93 2.23 3.59 2.75 5.07 6.22 4.36 9.55 3.04 4.87 5.76 1.50 53.87
1993 8.92 3.08 5.80 2.72 2.67 3.70 4.21 7.69 5.01 3.00 3.59 2.30 52.69
1994 7.50 1.23 4.44 0.39 2.35 11.71 8.07 5.39 8.08 12.11 2.92 6.35 70.54
1995 3.94 3.73 0.70 1.77 1.31 6.72 5.81 11.07 7.98 3.52 2.02 1.02 49.59
1996 1.05 1.36 4.04 2.70 1.72 4.04 7.34 5.73 8.77 5.07 1.74 2.14 45.70
1997 2.68 2.86 1.81 6.61 2.04 13.76 8.51 2.15 9.58 4.12 3.26 5.19 62.57
1998 7.58 10.17 5.51 4.01 4.63 3.41 6.74 4.44 14.74 1.99 0.16 4.34 67.72
1999 4.96 2.01 2.15 2.90 3.95 2.32 3.19 3.68 10.81 6.20 1.70 2.54 46.41
2000 4.04 2.01 3.66 1.78 0.57 4.35 10.81 4.47 8.88 T 2.72 2.65 45.94
2001 1.07 2.31 6.30 0.94 1.36 8.83 9.73 1.65 4.90 0.65 0.53 1.71 39.98
POR=131 YRS 3.20 3.23 3.73 2.77 3.47 5.29 7.04 6.66 5.31 3.11 2.28 2.82 48.91

2001 Charleston, South Carolina (CHS)

AVERAGE TEMPERATURE (F) CHARLESTON, SC (CHS)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 54.8 48.9 56.9 64.0 69.8 74.0 80.1 80.4 76.4 67.3 56.8 55.7 65.4
1973 48.0 46.1 61.0 61.5 71.7 78.4 82.6 81.0 79.6 69.6 61.4 51.3 66.0
1974 61.8 51.5 62.0 63.6 74.0 75.4 78.2 79.3 75.0 61.8 55.5 51.0 65.8
1975 53.8 54.7 56.9 62.3 75.1 78.5 79.2 81.5 76.8 69.0 59.3 49.7 66.4
1976 44.8 55.9 62.3 64.0 70.3 75.8 81.0 77.2 73.9 61.4 50.9 48.8 63.9
1977 38.7 46.3 60.6 66.4 72.8 81.2 83.8 81.4 78.7 63.5 61.3 5.0 61.6
1978 43.5 42.7 55.2 66.5 72.0 78.6 81.1 81.3 77.4 65.7 63.3 52.7 65.0
1979 45.4 46.8 57.4 64.9 72.4 75.9 82.0 81.4 76.5 66.0 59.4 48.7 64.7
1980 48.7 45.9 54.6 64.3 71.4 78.4 82.4 82.1 79.8 65.0 55.4 47.5 64.6
1981 41.6 50.8 54.3 67.5 70.8 82.7 83.5 80.3 74.8 64.1 55.4 46.2 64.3
1982 45.1 51.5 59.2 61.8 72.2 78.8 81.2 80.0 74.5 65.1 60.9 57.0 65.6
1983 45.6 49.0 56.4 61.0 71.7 76.9 82.8 82.9 75.5 68.9 57.4 48.8 64.7
1984 46.1 52.8 57.6 64.0 71.7 78.8 79.9 81.1 73.0 71.3 54.2 57.2 65.6
1985 42.6 50.5 60.7 67.8 73.6 79.6 80.9 79.9 75.8 72.2 67.3 47.9 66.6
1986 45.8 55.5 58.0 66.1 74.3 81.4 86.1 79.9 78.6 68.8 63.1 52.8 67.5
1987 47.2 48.8 56.8 62.6 73.3 80.1 83.0 83.5 77.8 61.0 60.1 53.5 65.6
1988 43.2 49.2 57.4 64.4 71.9 76.7 81.8 82.0 76.3 62.7 61.0 50.6 64.8
1989 55.6 55.0 59.7 65.3 72.3 80.4 82.8 80.7 76.6 68.7 60.6 43.2 66.7
1990 55.4 59.2 62.5 66.0 74.4 81.0 83.6 82.5 79.2 70.5 60.4 56.4 69.3
1991 50.8 54.9 60.5 67.6 76.3 78.9 83.6 82.0 77.4 67.6 56.0 54.3 67.5
1992 49.5 55.0 57.9 63.6 70.3 77.5 83.9 80.6 76.2 65.1 60.4 51.0 65.9
1993 53.7 49.7 55.9 61.6 72.5 79.5 85.5 82.0 78.3 67.3 59.3 48.5 66.2
1994 46.5 53.4 61.3 68.3 71.1 79.8 82.0 80.0 75.7 66.4 62.5 54.4 66.8
1995 49.7 50.2 60.4 68.5 76.0 78.5 83.4 82.5 75.6 69.8 53.8 47.5 66.3
1996 48.0 51.8 53.7 64.2 74.4 78.3 81.9 78.7 75.4 65.8 54.6 52.3 64.9
1997 49.7 55.1 64.3 63.1 69.2 74.8 80.8 79.0 76.0 66.0 55.2 49.9 65.3
1998 52.5 53.7 56.2 65.2 75.1 82.8 83.8 81.2 77.3 68.6 62.4 55.7 67.9
1999 53.6 53.6 54.9 67.8 70.4 76.4 82.5 83.2 74.7 66.4 59.8 50.5 66.2
2000 47.4 53.2 60.9 62.8 75.6 79.7 81.5 80.3 75.2 64.9 55.3 42.6 65.0
2001 46.4 54.6 56.6 65.2 72.6 79.0 79.8 80.9 73.6 64.8 63.6 56.4 66.1
POR=128 YRS 49.6 51.5 57.6 64.6 72.5 78.7 81.3 80.6 76.5 67.2 57.9 51.0 65.8

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 Charleston, South Carolina (CHS)

HEATING DEGREE DAYS (base 65 F) 2001 CHARLESTON, SC (CHS)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972–73 0 0 0 33 268 302 520 524 167 141 18 0 1973
1973–74 0 0 0 34 158 428 131 378 150 114 2 0 1395
1974–75 0 0 5 136 299 432 350 294 273 152 0 0 1941
1975–76 0 0 0 40 221 466 624 265 146 94 15 3 1874
1976–77 0 0 0 159 418 501 808 516 186 58 17 0 2663
1977–78 0 0 0 112 175 459 663 616 309 52 18 0 2404
1978–79 0 0 0 57 83 399 602 505 241 70 2 0 1959
1979–80 0 0 0 68 203 500 495 555 321 82 17 0 2241
1980–81 0 0 0 80 287 537 719 393 333 55 16 0 2420
1981–82 0 0 3 88 291 577 611 372 214 132 3 0 2291
1982–83 0 0 0 102 154 276 596 440 264 146 2 0 1980
1983–84 0 0 4 24 230 500 578 347 240 92 16 0 2031
1984–85 0 0 9 13 337 249 692 418 183 47 4 0 1952
1985–86 0 0 2 16 54 526 586 261 244 74 4 0 1767
1986–87 0 6 0 56 128 376 545 446 272 131 7 0 1967
1987–88 0 0 0 135 188 358 669 458 239 85 7 2 2141
1988–89 0 0 0 107 145 442 286 312 220 121 14 0 1647
1989–90 0 0 1 50 169 669 294 189 137 67 0 0 1576
1990–91 0 0 0 65 152 280 432 293 185 34 0 0 1441
1991–92 0 0 0 41 281 349 472 293 234 119 28 0 1817
1992–93 0 0 3 70 197 430 353 421 279 132 1 0 1886
1993–94 0 0 3 49 206 504 568 327 152 30 11 0 1850
1994–95 0 0 0 46 119 338 468 414 167 35 1 0 1588
1995–96 0 0 8 44 357 535 518 383 350 107 15 0 2317
1996–97 0 0 0 54 323 391 467 288 94 106 20 9 1752
1997–98 0 0 0 87 293 463 391 318 288 66 0 0 1906
1998–99 0 0 0 38 113 306 358 315 314 61 20 0 1525
1999–00 0 0 4 71 175 446 543 339 148 96 0 0 1822
2000–01 0 0 1 80 306 687 571 300 272 94 1 0 2312
2001– 0 0 8 110 94 277

2001 Charleston, South Carolina (CHS)

COOLING DEGREE DAYS (base 65 F) 2001 CHARLESTON, SC (CHS)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 7 3 5 93 163 275 475 488 351 110 30 22 2022
1973 1 0 50 42 233 412 554 501 445 184 56 10 2488
1974 41 7 63 80 288 319 417 450 312 46 18 3 2044
1975 8 13 26 74 318 414 449 516 361 171 58 0 2408
1976 2 9 73 70 187 329 502 384 274 52 2 1 1885
1977 0 1 54 107 263 493 588 518 417 71 71 1 2584
1978 0 0 13 106 242 414 505 514 378 86 40 21 2319
1979 0 2 9 71 241 335 533 514 354 105 40 0 2204
1980 0 9 7 69 221 407 549 539 451 87 5 1 2345
1981 0 0 9 138 199 539 582 481 307 66 9 0 2330
1982 0 2 42 42 232 420 510 475 293 111 36 34 2197
1983 0 0 6 32 217 362 559 567 322 149 10 4 2228
1984 0 1 19 67 228 420 471 509 254 212 21 10 2212
1985 7 17 57 136 276 445 501 470 332 245 129 5 2620
1986 0 2 36 114 300 499 662 474 414 182 78 5 2766
1987 0 0 26 62 269 459 567 580 389 18 48 9 2427
1988 0 2 12 74 229 359 529 534 349 43 30 4 2165
1989 5 37 64 136 246 470 561 493 358 173 44 0 2587
1990 4 34 65 105 302 487 583 548 430 238 24 21 2841
1991 0 20 52 118 356 426 584 531 379 128 18 25 2637
1992 0 7 20 83 199 381 592 495 345 79 68 5 2274
1993 7 0 4 37 241 440 644 536 410 127 42 0 2488
1994 0 7 42 133 210 449 537 473 327 93 53 17 2341
1995 1 6 29 146 349 410 577 552 334 198 26 0 2628
1996 0 8 6 88 313 405 531 432 320 87 18 6 2214
1997 0 17 77 56 158 309 496 444 336 124 7 0 2024
1998 10 6 23 77 320 542 592 509 378 158 43 26 2684
1999 10 1 6 153 193 351 548 571 303 122 25 1 2284
2000 1 2 29 36 336 448 522 481 315 84 25 0 2279
2001 0 13 16 107 242 423 467 499 269 114 58 17 2225

2001 Charleston, South Carolina (CHS)

SNOWFALL (inches) 2001 CHARLESTON, SC (CHS)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972–73 0.0 0.0 0.0 0.0 0.0 0.0 T 7.1 0.0 0.0 0.0 0.0 7.1
1973–74 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 0.0 T
1974–75 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1975–76 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.4
1976–77 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.3 0.0 0.0 0.0 0.0 1.3
1977–78 0.0 0.0 0.0 0.0 0.0 0.0 T 0.4 T 0.0 0.0 0.0 0.4
1978–79 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.8 0.0 0.0 0.0 0.0 1.8
1979–80 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 1.3 0.0 0.0 0.0 1.3
1980–81 0.0 0.0 0.0 0.0 0.0 3.8 0.0 0.0 0.0 0.0 0.0 0.0 3.8
1981–82 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1982–83 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 T
1983–84 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1984–85 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 T 0.0 0.0 T
1985–86 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.0 0.0 0.0 0.0 0.0 0.5
1986–87 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 T 0.0 0.0 0.0 T
1987–88 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.4
1988–89 0.0 0.0 0.0 0.0 0.0 T 0.0 0.9 T 0.0 0.0 T 0.9
1989–90 0.0 0.0 0.0 0.0 0.0 8.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0
1990–91 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 T
1991–92 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1992–93 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 T
1993–94 T 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 0.0 T
1994–95 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T T
1995–96 0.0 0.0 0.0 0.0 T 0.0 0.0
1996–97
1997–98
1998–99
1999–00
2000–01
2001– 0.0 0.0 0.0
POR=53 YRS T 0.0 0.0 0.0 T 0.3 0.1 0.2 0.1 T 0.0 T 0.7



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2001 Charleston, South Carolina (CHS) forum