National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-15 05:28 UTC
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379
CDUS41 KLWX 150529
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
128 AM EDT MON MAY 15 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 14 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 80 209 PM 89 2010 75 5 75
MINIMUM 42 454 AM 32 2013 51 -9 46
1996
AVERAGE 61 62 -1 61
PRECIPITATION (IN)
YESTERDAY 0.00 1.31 2005 0.16 -0.16 0.18
MONTH TO DATE 4.19 1.95 2.24 3.98
SINCE MAR 1 11.35 8.80 2.55 7.31
SINCE JAN 1 14.79 14.22 0.57 15.57
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 7.3 22.0 -14.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 4 0 4
MONTH TO DATE 120 80 40 90
SINCE MAR 1 939 1062 -123 871
SINCE JUL 1 3832 4652 -820 3962
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 12 19 -7 4
SINCE MAR 1 81 39 42 27
SINCE JAN 1 81 39 42 27
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 9.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 100 AM
LOWEST 23 200 PM
AVERAGE 62
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 90 1962
MINIMUM TEMPERATURE (F) 51 37 2016
1984
SUNRISE AND SUNSET
MAY 15 2017...........SUNRISE 557 AM EDT SUNSET 816 PM EDT
MAY 16 2017...........SUNRISE 556 AM EDT SUNSET 817 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$