Climatological Report (Annual)
Issued by NWS Charleston, SC

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503
CXUS52 KCHS 031410
CLACHS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
902 AM EST SUN JAN 03 2021

...................................

...THE NORTH CHARLESTON SC CLIMATE SUMMARY FOR THE YEAR OF 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1938 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            105   08/01/1999
 LOW               6   01/21/1985
HIGHEST           97   08/01                         101  05/29
                                                          05/28
LOWEST            23   12/26                          27  01/30
AVG. MAXIMUM    77.6               76.2     1.4     78.1
AVG. MINIMUM    58.7               55.6     3.1     58.0
MEAN            68.1               65.9     2.2     68.0
DAYS MAX >= 90    72               55.2    16.8       82
DAYS MAX <= 32     0                0.4    -0.4        0
DAYS MIN <= 32    16               24.4    -8.4       15
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       74.89   2015
 MINIMUM       30.31   1954
TOTALS         53.74              51.03    2.71    49.45
DAILY AVG.      0.15               0.14    0.01     0.13
DAYS >= .01      122              112.7     9.3      102
DAYS >= .10       79               74.4     4.6       65
DAYS >= .50       34               33.4     0.6       31
DAYS >= 1.00      18               14.8     3.2       15
GREATEST
 24 HR. TOTAL   3.26   09/16 TO 09/17

SNOWFALL (INCHES)
TOTALS             T                0.5    -0.5      0.0
SINCE 7/1          T                0.3    -0.3       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= TRACE      1                0.5     0.5        0
DAYS >= 1.0        0                0.1    -0.1        0

DEGREE DAYS
HEATING TOTAL   1433               1977    -544     1566
 SINCE 7/1       576                739    -163      641
COOLING TOTAL   2676               2304     372     2776
 SINCE 1/1      2676               2304     372     2776

................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    44/180    DATE  11/30
HIGHEST GUST SPEED/DIRECTION    55/180    DATE  11/30


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             78     MIXED PRECIP               0
HEAVY RAIN               60     RAIN                      67
LIGHT RAIN              171     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                     172     FOG W/VIS <= 1/4 MILE     13
HAZE                     25

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

2020 BECOMES THE 4TH WARMEST YEAR ON RECORD AT THE CHARLESTON
INTERNATIONAL AIRPORT.

$$



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