National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-09-15 05:30 UTC
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460
CDUS41 KLWX 150532
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT FRI SEP 15 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 14 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 80 307 PM 95 1998 80 0 93
MINIMUM 65 631 AM 37 1985 57 8 62
AVERAGE 73 69 4 78
PRECIPITATION (IN)
YESTERDAY 0.03 5.52 1966 0.14 -0.11 0.00
MONTH TO DATE 1.75 1.73 0.02 0.17
SINCE SEP 1 1.75 1.73 0.02 0.17
SINCE JAN 1 34.75 29.73 5.02 28.17
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 30 7 23 0
SINCE SEP 1 30 7 23 0
SINCE JUL 1 31 9 22 0
COOLING
YESTERDAY 8 5 3 13
MONTH TO DATE 34 92 -58 167
SINCE SEP 1 34 92 -58 167
SINCE JAN 1 1095 1108 -13 1430
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 4.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 62 100 PM
AVERAGE 81
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 1998
1993
MINIMUM TEMPERATURE (F) 57 38 1985
SUNRISE AND SUNSET
SEPTEMBER 15 2017.....SUNRISE 651 AM EDT SUNSET 718 PM EDT
SEPTEMBER 16 2017.....SUNRISE 652 AM EDT SUNSET 716 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$