National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-07-24 05:40 UTC
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272
CDUS41 KLWX 240540
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
140 AM EDT MON JUL 24 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 23 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 87 152 PM 99 2011 88 -1 98
1991
MINIMUM 72 604 AM 50 1983 66 6 71
1977
AVERAGE 80 77 3 85
PRECIPITATION (IN)
YESTERDAY 0.84 1.51 1988 0.12 0.72 0.03
MONTH TO DATE 7.11 2.70 4.41 1.34
SINCE JUN 1 8.39 6.68 1.71 7.69
SINCE JAN 1 27.48 23.50 3.98 25.36
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE T 0.0 0.0
SINCE JUL 1 T 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 6 15 -9 3
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 15 12 3 20
MONTH TO DATE 332 271 61 312
SINCE JUN 1 588 508 80 565
SINCE JAN 1 725 600 125 663
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 5.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 59 200 PM
AVERAGE 80
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 2010
MINIMUM TEMPERATURE (F) 66 48 1985
SUNRISE AND SUNSET
JULY 24 2017..........SUNRISE 604 AM EDT SUNSET 828 PM EDT
JULY 25 2017..........SUNRISE 605 AM EDT SUNSET 827 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$