National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-04-30 05:25 UTC
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024
CDUS41 KLWX 300527
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
125 AM EDT SUN APR 30 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 29 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 89R 239 PM 87 1996 71 18 55
1974
MINIMUM 65 118 AM 32 1987 46 19 46
AVERAGE 77 58 19 51
PRECIPITATION (IN)
YESTERDAY T 1.19 2014 0.12 -0.12 T
MONTH TO DATE 3.04 3.36 -0.32 1.82
SINCE MAR 1 7.16 6.74 0.42 3.27
SINCE JAN 1 10.60 12.16 -1.56 11.53
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0
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 14
MONTH TO DATE 179 330 -151 324
SINCE MAR 1 819 977 -158 770
SINCE JUL 1 3712 4567 -855 3861
COOLING
YESTERDAY 12 1 11 0
MONTH TO DATE 56 17 39 18
SINCE MAR 1 58 20 38 23
SINCE JAN 1 58 20 38 23
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 100 AM
LOWEST 45 1200 PM
AVERAGE 66
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 86 2007
1974
MINIMUM TEMPERATURE (F) 46 29 1977
SUNRISE AND SUNSET
APRIL 30 2017.........SUNRISE 613 AM EDT SUNSET 802 PM EDT
MAY 1 2017...........SUNRISE 612 AM EDT SUNSET 803 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$