National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2023-08-10 05:27 UTC
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478
CDUS41 KLWX 100527
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
127 AM EDT THU AUG 10 2023
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 9 2023...
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)
YESTERDAY
MAXIMUM 89 3:00 PM 97 1980 87 2 96
2001
MINIMUM 64 4:04 AM 47 1989 66 -2 74
AVERAGE 77 77 0 85
PRECIPITATION (IN)
YESTERDAY 0.00 2.28 1969 0.12 -0.12 0.06
MONTH TO DATE 1.19 1.08 0.11 0.84
SINCE JUN 1 8.58 9.53 -0.95 8.82
SINCE JAN 1 18.56 26.77 -8.21 26.04
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 5 13 -8 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 12 12 0 20
MONTH TO DATE 99 108 -9 153
SINCE JUN 1 754 724 30 806
SINCE JAN 1 828 830 -2 935
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 5.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 10:00 PM
LOWEST 40 2:00 PM
AVERAGE 61
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 97 2009
MINIMUM TEMPERATURE (F) 66 51 1999
SUNRISE AND SUNSET
AUGUST 10 2023........SUNRISE 6:19 AM EDT SUNSET 8:11 PM EDT
AUGUST 11 2023........SUNRISE 6:19 AM EDT SUNSET 8:10 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$