National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-01 05:48 UTC
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995
CDUS41 KLWX 010549
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
148 AM EDT MON MAY 1 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 30 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 86R 352 PM 86 2007 71 15 56
1974
MINIMUM 66 503 AM 29 1977 46 20 51
AVERAGE 76 59 17 54
PRECIPITATION (IN)
YESTERDAY 0.00 3.99 2014 0.11 -0.11 0.06
MONTH TO DATE 3.04 3.47 -0.43 1.88
SINCE MAR 1 7.16 6.85 0.31 3.33
SINCE JAN 1 10.60 12.27 -1.67 11.59
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 0 7 -7 11
MONTH TO DATE 179 337 -158 335
SINCE MAR 1 819 982 -163 781
SINCE JUL 1 3712 4572 -860 3872
COOLING
YESTERDAY 11 1 10 0
MONTH TO DATE 67 17 50 18
SINCE MAR 1 69 20 49 23
SINCE JAN 1 69 20 49 23
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 300 AM
LOWEST 51 300 PM
AVERAGE 72
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 90 2010
MINIMUM TEMPERATURE (F) 47 33 1996
SUNRISE AND SUNSET
MAY 1 2017...........SUNRISE 612 AM EDT SUNSET 803 PM EDT
MAY 2 2017...........SUNRISE 610 AM EDT SUNSET 804 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$