Climatological Report (Monthly)
Issued by NWS
Issued by NWS
582
CXUS52 KCHS 012020
CLMCXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
415 PM EDT SUN JUN 01 2025
...................................
...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1870 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 100 05/27/2019
LOW 45 05/20/1894
HIGHEST 92 05/21 MM MM 89 05/29
LOWEST 66 05/09 MM MM 61 05/11
05/11
05/31
AVG. MAXIMUM 80.8 79.0 1.8 80.5
AVG. MINIMUM 70.6 68.0 2.6 70.5
MEAN 75.7 73.5 2.2 75.5
DAYS MAX >= 90 2 1.5 0.5 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 11.93 1976
MINIMUM 0.02 2000
TOTALS 6.01 2.58 3.43 3.73
DAYS >= .01 14 6.8 7.2 11
DAYS >= .10 7 4.3 2.7 9
DAYS >= .50 2 1.6 0.4 3
DAYS >= 1.00 1 0.8 0.2 0
GREATEST
24 HR. TOTAL 3.86 05/11
DEGREE DAYS
HEATING TOTAL 0 6 -6 0
SINCE 7/1 1512 1619 -107 MM
COOLING TOTAL 342 269 73 333
SINCE 1/1 515 387 128 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.2
HIGHEST WIND SPEED/DIRECTION 27/350
HIGHEST GUST SPEED/DIRECTION 39/010
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
RECORDS ESTABLISHED IN DOWNTOWN CHARLESTON DURING THE MONTH:
*MAY 11 - RECORD PRECIPITATION OF 3.86 INCHES
*MAY 17 - RECORD HIGH MINIMUM TEMPERATURE OF 77 DEGREES
*MAY 20 - RECORD HIGH MINIMUM TEMPERATURE OF 77 DEGREES
*MAY 21 - RECORD HIGH MINIMUM TEMPERATURE OF 78 DEGREES
$$