797
CDUS41 KLWX 160634
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
234 AM EDT THU JUL 16 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 15 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 95 3:43 PM 99 2024 88 7 88
MINIMUM 68 5:25 AM 53 1981 67 1 71
1987
AVERAGE 82 78 4 80
PRECIPITATION (IN)
YESTERDAY 0.00 1.01 2005 0.14 -0.14 0.00
MONTH TO DATE 3.69 2.04 1.65 1.30
SINCE JUN 1 7.98 6.34 1.64 8.23
SINCE JAN 1 22.90 23.58 -0.68 22.15
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 1 13 -12 15
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 17 12 5 15
MONTH TO DATE 236 178 58 220
SINCE JUN 1 514 416 98 541
SINCE JAN 1 687 522 165 659
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 5:00 AM
LOWEST 49 5:00 PM
AVERAGE 71
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 104 1988
MINIMUM TEMPERATURE (F) 67 57 1966
1967
1991
SUNRISE AND SUNSET
JULY 16 2026..........SUNRISE 5:57 AM EDT SUNSET 8:34 PM EDT
JULY 17 2026..........SUNRISE 5:58 AM EDT SUNSET 8:33 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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