National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-11-23 05:29 UTC
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072
CDUS41 KLWX 230529
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1229 AM EST THU NOV 23 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 22 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 56 1022 AM 75 2007 55 1 48
MINIMUM 34 1159 PM 14 2014 34 0 26
1964
AVERAGE 45 44 1 37
PRECIPITATION (IN)
YESTERDAY 0.00 1.54 1991 0.11 -0.11 0.00
MONTH TO DATE 1.96 2.49 -0.53 0.25
SINCE SEP 1 6.86 9.66 -2.80 3.45
SINCE JAN 1 39.86 37.66 2.20 31.45
SNOWFALL (IN)
YESTERDAY 0.0 2.2 1989 0.0 0.0
MONTH TO DATE 0.0 0.2 -0.2
SINCE JUL 1 T 0.2 -0.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 20 21 -1 28
MONTH TO DATE 402 379 23 355
SINCE SEP 1 622 733 -111 566
SINCE JUL 1 623 735 -112 566
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 0 1 2
SINCE SEP 1 220 160 60 296
SINCE JAN 1 1281 1176 105 1559
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 12.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 600 AM
LOWEST 41 200 PM
AVERAGE 64
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 54 70 1990
MINIMUM TEMPERATURE (F) 33 14 1984
1964
SUNRISE AND SUNSET
NOVEMBER 23 2017......SUNRISE 702 AM EST SUNSET 451 PM EST
NOVEMBER 24 2017......SUNRISE 703 AM EST SUNSET 450 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$