National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-04-19 05:31 UTC
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181
CDUS41 KLWX 190531
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 AM EDT WED APR 19 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 18 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 73 303 PM 90 1976 68 5 83
MINIMUM 48 559 AM 30 2014 43 5 42
AVERAGE 61 55 6 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.59 1978 0.10 -0.10 0.00
MONTH TO DATE 1.74 2.09 -0.35 1.19
SINCE MAR 1 5.86 5.47 0.39 2.64
SINCE JAN 1 9.30 10.89 -1.59 10.90
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2002 0.0 0.0
2001
MONTH TO DATE T 0.3 -0.3
SINCE JUL 1 7.3 22.0 -14.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 10 -6 2
MONTH TO DATE 129 233 -104 268
SINCE MAR 1 769 880 -111 714
SINCE JUL 1 3662 4470 -808 3805
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 23 6 17 8
SINCE MAR 1 25 9 16 13
SINCE JAN 1 25 9 16 13
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 600 AM
LOWEST 27 300 PM
AVERAGE 49
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 91 2002
MINIMUM TEMPERATURE (F) 43 27 2001
1990
SUNRISE AND SUNSET
APRIL 19 2017.........SUNRISE 627 AM EDT SUNSET 751 PM EDT
APRIL 20 2017.........SUNRISE 626 AM EDT SUNSET 752 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$