National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-09-16 05:34 UTC
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030
CDUS41 KLWX 160534
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
134 AM EDT SAT SEP 16 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 15 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 82 408 PM 95 1998 80 2 77
1993
MINIMUM 62 421 AM 38 1985 57 5 67
AVERAGE 72 68 4 72
PRECIPITATION (IN)
YESTERDAY 0.00 1.06 1981 0.15 -0.15 0.00
MONTH TO DATE 1.75 1.88 -0.13 0.17
SINCE SEP 1 1.75 1.88 -0.13 0.17
SINCE JAN 1 34.75 29.88 4.87 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 8 22 0
SINCE SEP 1 30 8 22 0
SINCE JUL 1 31 10 21 0
COOLING
YESTERDAY 7 5 2 7
MONTH TO DATE 41 97 -56 174
SINCE SEP 1 41 97 -56 174
SINCE JAN 1 1102 1113 -11 1437
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 51 200 PM
AVERAGE 76
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 97 1991
MINIMUM TEMPERATURE (F) 56 37 1984
SUNRISE AND SUNSET
SEPTEMBER 16 2017.....SUNRISE 652 AM EDT SUNSET 716 PM EDT
SEPTEMBER 17 2017.....SUNRISE 653 AM EDT SUNSET 714 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$