435
CDUS41 KLWX 270633
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
233 AM EDT SUN SEP 27 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 26 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 70 11:55 AM 93 2007 75 -5 84
MINIMUM 57 7:02 PM 38 1964 54 3 64
1983
AVERAGE 64 65 -1 74
PRECIPITATION (IN)
YESTERDAY 0.16 2.15 1975 0.13 0.03 0.00
MONTH TO DATE 3.77 3.37 0.40 1.22
SINCE SEP 1 3.77 3.37 0.40 1.22
SINCE JAN 1 33.17 32.59 0.58 25.86
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 SEP 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 1 3 -2 0
MONTH TO DATE 20 28 -8 7
SINCE SEP 1 20 28 -8 7
SINCE JUL 1 20 29 -9 9
COOLING
YESTERDAY 0 3 -3 9
MONTH TO DATE 191 143 48 144
SINCE SEP 1 191 143 48 144
SINCE JAN 1 1471 1199 272 1292
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 12.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 7:00 PM
LOWEST 42 12:00 PM
AVERAGE 68
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 96 1998
MINIMUM TEMPERATURE (F) 53 35 1984
SUNRISE AND SUNSET
SEPTEMBER 27 2026.....SUNRISE 7:02 AM EDT SUNSET 6:59 PM EDT
SEPTEMBER 28 2026.....SUNRISE 7:03 AM EDT SUNSET 6:57 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