National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-17 05:38 UTC
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152
CDUS41 KLWX 170538
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
138 AM EDT WED MAY 17 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 16 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 81 413 PM 90 1998 75 6 66
MINIMUM 44 508 AM 35 2000 51 -7 36
AVERAGE 63 63 0 51
PRECIPITATION (IN)
YESTERDAY 0.00 1.97 2014 0.15 -0.15 0.00
MONTH TO DATE 4.19 2.26 1.93 3.98
SINCE MAR 1 11.35 9.11 2.24 7.31
SINCE JAN 1 14.79 14.53 0.26 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 2 4 -2 14
MONTH TO DATE 126 88 38 121
SINCE MAR 1 945 1070 -125 902
SINCE JUL 1 3838 4660 -822 3993
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 12 23 -11 4
SINCE MAR 1 81 43 38 27
SINCE JAN 1 81 43 38 27
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 3.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 500 AM
LOWEST 26 400 PM
AVERAGE 58
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1960
MINIMUM TEMPERATURE (F) 51 30 1984
SUNRISE AND SUNSET
MAY 17 2017...........SUNRISE 555 AM EDT SUNSET 818 PM EDT
MAY 18 2017...........SUNRISE 554 AM EDT SUNSET 819 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$