Climatological Report (Monthly)
Issued by NWS Sterling, VA

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000
CXUS51 KLWX 030927
CLMIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
427 AM EST SUN DEC 03 2023

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             84   11/01/1982
                       11/02/1971
 LOW               9   11/24/1989
HIGHEST           81   11/09         75       6       81
LOWEST            19   11/29         19       0       19
AVG. MAXIMUM    59.4               56.5     2.9     60.2
AVG. MINIMUM    32.5               35.6    -3.1     38.1
MEAN            45.9               46.0    -0.1     49.1
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.1    -0.1        0
DAYS MIN <= 32    18               12.9     5.1       12
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.83   1963
 MINIMUM        0.24   1981
TOTALS          2.49               3.13   -0.64     2.79
DAILY AVG.      0.08               0.10   -0.02     0.09
DAYS >= .01        4                8.6    -4.6        7
DAYS >= .10        2                5.4    -3.4        5
DAYS >= .50        1                2.1    -1.1        2
DAYS >= 1.00       1                0.9     0.1        1
GREATEST
 24 HR. TOTAL   2.15   11/21 TO 11/21               1.20
 STORM TOTAL    2.15                                1.20
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL          11.4   1967
TOTALS           0.0                0.3    -0.3        T
SINCE 7/1          T                0.3    -0.3       MM
DAYS >= TRACE      0                0.2    -0.2        1
DAYS >= 1.0        0                0.1    -0.1        0
GREATEST
 SNOW DEPTH        0                                   0

DEGREE DAYS
HEATING TOTAL    565                570      -5      493
 SINCE 7/1       771                899    -128       MM
COOLING TOTAL      0                  1      -1       22
 SINCE 1/1      1380               1231     149       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.0
HIGHEST WIND SPEED/DIRECTION    30/300
HIGHEST GUST SPEED/DIRECTION    44/320

SKY COVER
AVERAGE SKY COVER           0.42

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      2
HAZE                      2

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

&&

EXCEPT FOR ONE DAY IN THE MONTH WHEN THERE WERE OVER 2 INCHES OF RAIN, MOST
OF THE MONTH WAS VERY DRY. SEVERE DROUGHT WAS DECLARED EARLY IN THE MONTH
DUE TO LARGE PRECIPITATION DEFICITS, BUT THE RAIN ON THE 21ST HELPED BRING
THE DROUGHT ONE CATEGORY DOWN. MANY FIRES DEVELOPED ACROSS THE STATE OF VIRGINIA
DUE TO SEVERE DROUGHT CONDITIONS.

$$


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