National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-19 05:22 UTC
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552
CDUS41 KLWX 190524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT FRI MAY 19 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 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 90 330 PM 91 1987 76 14 65
MINIMUM 67 1159 PM 33 1973 52 15 52
AVERAGE 79 64 15 59
PRECIPITATION (IN)
YESTERDAY 0.61 3.13 1988 0.15 0.46 T
MONTH TO DATE 4.80 2.57 2.23 4.31
SINCE MAR 1 11.96 9.42 2.54 7.64
SINCE JAN 1 15.40 14.84 0.56 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 6
MONTH TO DATE 126 96 30 139
SINCE MAR 1 945 1078 -133 920
SINCE JUL 1 3838 4668 -830 4011
COOLING
YESTERDAY 14 2 12 0
MONTH TO DATE 36 27 9 4
SINCE MAR 1 105 47 58 27
SINCE JAN 1 105 47 58 27
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 8.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1000 PM
LOWEST 44 200 PM
AVERAGE 67
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1997
1996
MINIMUM TEMPERATURE (F) 52 36 2002
SUNRISE AND SUNSET
MAY 19 2017...........SUNRISE 554 AM EDT SUNSET 819 PM EDT
MAY 20 2017...........SUNRISE 553 AM EDT SUNSET 820 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$