National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-04-28 05:25 UTC
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892
CDUS41 KLWX 280527
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
125 AM EDT FRI APR 28 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 27 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 82 422 PM 92 2009 70 12 69
1990
MINIMUM 54 348 AM 31 1987 45 9 53
1972
AVERAGE 68 58 10 61
PRECIPITATION (IN)
YESTERDAY T 1.65 1973 0.12 -0.12 0.02
MONTH TO DATE 3.04 3.12 -0.08 1.40
SINCE MAR 1 7.16 6.50 0.66 2.85
SINCE JAN 1 10.60 11.92 -1.32 11.11
SNOWFALL (IN)
YESTERDAY 0.0 T 1994 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 8 -8 4
MONTH TO DATE 179 315 -136 296
SINCE MAR 1 819 962 -143 742
SINCE JUL 1 3712 4552 -840 3833
COOLING
YESTERDAY 3 1 2 0
MONTH TO DATE 38 15 23 18
SINCE MAR 1 40 18 22 23
SINCE JAN 1 40 18 22 23
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 7.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 AM
LOWEST 43 400 PM
AVERAGE 72
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 88 1990
1983
1981
MINIMUM TEMPERATURE (F) 46 32 1993
1972
SUNRISE AND SUNSET
APRIL 28 2017.........SUNRISE 615 AM EDT SUNSET 800 PM EDT
APRIL 29 2017.........SUNRISE 614 AM EDT SUNSET 801 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$