National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-20 05:22 UTC
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273
CDUS41 KLWX 200523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT SAT MAY 20 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 19 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 90 309 PM 92 1997 76 14 72
1996
MINIMUM 66 536 AM 36 2002 52 14 50
AVERAGE 78 64 14 61
PRECIPITATION (IN)
YESTERDAY 0.05 1.18 1988 0.15 -0.10 T
MONTH TO DATE 4.85 2.72 2.13 4.31
SINCE MAR 1 12.01 9.57 2.44 7.64
SINCE JAN 1 15.45 14.99 0.46 15.90
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 0 4 -4 4
MONTH TO DATE 126 100 26 143
SINCE MAR 1 945 1082 -137 924
SINCE JUL 1 3838 4672 -834 4015
COOLING
YESTERDAY 13 3 10 0
MONTH TO DATE 49 30 19 4
SINCE MAR 1 118 50 68 27
SINCE JAN 1 118 50 68 27
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 44 200 PM
AVERAGE 69
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 93 1996
MINIMUM TEMPERATURE (F) 52 36 2002
SUNRISE AND SUNSET
MAY 20 2017...........SUNRISE 553 AM EDT SUNSET 820 PM EDT
MAY 21 2017...........SUNRISE 552 AM EDT SUNSET 821 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$