037
CXUS51 KLWX 011448
CLMIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1048 AM EDT FRI MAY 01 2026

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF APRIL 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             93   04/06/2010
                       04/17/2002
 LOW              17   04/01/1969
HIGHEST           92   04/16         85       7       84
LOWEST            27   04/21         25       2       26
AVG. MAXIMUM    72.8               66.8     6.0     68.6
AVG. MINIMUM    47.4               43.2     4.2     46.8
MEAN            60.1               55.0     5.1     57.7
DAYS MAX >= 90     2                0.4     1.6        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     2                3.7    -1.7        2
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.41   2014
 MINIMUM        0.33   1985
TOTALS          1.67               3.47   -1.80     2.01
DAILY AVG.      0.06               0.12   -0.06     0.07
DAYS >= .01        7               11.0    -4.0       11
DAYS >= .10        5                6.3    -1.3        5
DAYS >= .50        2                2.0     0.0        2
DAYS >= 1.00       0                0.8    -0.8        0
GREATEST
 24 HR. TOTAL   0.61   04/05 TO 04/05               0.63
 STORM TOTAL    0.61                                0.53
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL           4.0   1990
TOTALS             T                0.1    -0.1      0.0
SINCE 7/1       13.6               21.0    -7.4       MM
DAYS >= TRACE      1                0.1     0.9        0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0

DEGREE DAYS
HEATING TOTAL    208                320    -112      241
 SINCE 7/1      4279               4477    -198       MM
COOLING TOTAL     70                 20      50       30
 SINCE 1/1        86                 22      64       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    31/300
HIGHEST GUST SPEED/DIRECTION    44/300

SKY COVER
AVERAGE SKY COVER           0.56

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$