820
CDUS41 KLWX 220622
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
222 AM EDT SAT AUG 22 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 21 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 82 3:28 PM 96 1962 86 -4 73
MINIMUM 65 6:00 AM 47 1976 65 0 64
AVERAGE 74 75 -1 69
PRECIPITATION (IN)
YESTERDAY 0.00 2.72 2018 0.10 -0.10 0.01
MONTH TO DATE 4.17 2.38 1.79 0.85
SINCE JUN 1 13.80 10.83 2.97 10.72
SINCE JAN 1 28.72 28.07 0.65 24.64
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 0
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 9 10 -1 4
MONTH TO DATE 292 239 53 192
SINCE JUN 1 1005 855 150 990
SINCE JAN 1 1178 961 217 1108
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 11:00 PM
LOWEST 39 2:00 PM
AVERAGE 62
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 101 1983
MINIMUM TEMPERATURE (F) 65 49 2024
SUNRISE AND SUNSET
AUGUST 22 2026........SUNRISE 6:30 AM EDT SUNSET 7:55 PM EDT
AUGUST 23 2026........SUNRISE 6:31 AM EDT SUNSET 7:53 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page