National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-04-29 05:24 UTC
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911
CDUS41 KLWX 290524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
124 AM EDT WED APR 29 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 28 2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1960 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 53 10:36 AM 88 1981 71 -18 74
1983
1990
MINIMUM 39 2:11 AM 32 1972 46 -7 45
1993
AVERAGE 46 58 -12 60
PRECIPITATION (IN)
YESTERDAY 0.10 1.68 2002 0.12 -0.02 0.02
MONTH TO DATE 4.18 3.24 0.94 2.82
SINCE MAR 1 6.17 6.62 -0.45 7.37
SINCE JAN 1 12.74 12.04 0.70 14.83
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
2002
MONTH TO DATE T 0.3 -0.3 0.0
SINCE MAR 1 T 3.1 -3.1 1.6
SINCE JUL 1 2.9 22.0 -19.1 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 19 8 11 5
MONTH TO DATE 371 323 48 182
SINCE MAR 1 819 970 -151 866
SINCE JUL 1 3963 4560 -597 4371
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 16 -16 19
SINCE MAR 1 3 19 -16 19
SINCE JAN 1 3 19 -16 19
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 2.6
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 10:00 PM
LOWEST 57 10:00 AM
AVERAGE 75
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 89 2017
MINIMUM TEMPERATURE (F) 46 32 1987
SUNRISE AND SUNSET
APRIL 29 2020.........SUNRISE 6:14 AM EDT SUNSET 8:01 PM EDT
APRIL 30 2020.........SUNRISE 6:12 AM EDT SUNSET 8:02 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$