Climatological Report (Daily)
Issued by NWS Sterling, VA

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713
CDUS41 KLWX 150622
CLIIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
222 AM EDT TUE JUL 15 2025

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 14 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         89   2:22 PM  98    1993  88      1       98
                                      2024
  MINIMUM         74  11:59 PM  53    2009  67      7       74
  AVERAGE         82                        77      5       86

PRECIPITATION (IN)
  YESTERDAY        0.11          1.56 2002   0.14  -0.03     0.00
  MONTH TO DATE    1.30                      1.90  -0.60     1.74
  SINCE JUN 1      8.23                      6.20   2.03     2.43
  SINCE JAN 1     22.15                     23.44  -1.29    19.73

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1     15                        13      2        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY       17                        12      5       21
  MONTH TO DATE  205                       166     39      236
  SINCE JUN 1    526                       404    122      590
  SINCE JAN 1    644                       510    134      773
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     5.1


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          11:00 PM
 LOWEST     67           3:00 PM
 AVERAGE    84

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88        99      2024
 MINIMUM TEMPERATURE (F)   67        53      1981
                                             1987


SUNRISE AND SUNSET
JULY 15 2025..........SUNRISE   5:57 AM EDT   SUNSET   8:34 PM EDT
JULY 16 2025..........SUNRISE   5:58 AM EDT   SUNSET   8:34 PM EDT


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




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