National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2023-10-21 21:29 UTC
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630
CDUS41 KLWX 212129
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
529 PM EDT SAT OCT 21 2023
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 21 2023...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 67 12:11 PM 86 1979 66 1 67
MINIMUM 52 6:51 AM 22 1972 43 9 32
AVERAGE 60 55 5 50
PRECIPITATION (IN)
TODAY 0.00 2.45 1995 0.12 -0.12 0.00
MONTH TO DATE 0.53 2.52 -1.99 2.03
SINCE SEP 1 7.18 6.46 0.72 5.31
SINCE JAN 1 26.40 35.68 -9.28 32.81
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 T 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 5 11 -6 15
MONTH TO DATE 126 158 -32 206
SINCE SEP 1 142 203 -61 245
SINCE JUL 1 142 204 -62 245
COOLING
TODAY 0 0 0 0
MONTH TO DATE 32 19 13 0
SINCE SEP 1 248 171 77 176
SINCE JAN 1 1363 1227 136 1354
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 13.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 12:00 AM
LOWEST 45 2:00 PM
AVERAGE 66
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 85 1979
MINIMUM TEMPERATURE (F) 43 26 1974
SUNRISE AND SUNSET
OCTOBER 21 2023.......SUNRISE 7:25 AM EDT SUNSET 6:23 PM EDT
OCTOBER 22 2023.......SUNRISE 7:26 AM EDT SUNSET 6:22 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$