National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-09-30 05:37 UTC
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074
CDUS41 KLWX 300538
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
137 AM EDT SAT SEP 30 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 29 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 73 408 PM 85 1986 74 -1 68
1973
MINIMUM 49 452 AM 34 1978 50 -1 62
AVERAGE 61 62 -1 65
PRECIPITATION (IN)
YESTERDAY 0.00 2.23 1963 0.13 -0.13 0.93
MONTH TO DATE 1.75 3.78 -2.03 2.45
SINCE SEP 1 1.75 3.78 -2.03 2.45
SINCE JAN 1 34.75 31.78 2.97 30.45
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 4 5 -1 0
MONTH TO DATE 34 50 -16 3
SINCE SEP 1 34 50 -16 3
SINCE JUL 1 35 52 -17 3
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 155 139 16 255
SINCE SEP 1 155 139 16 255
SINCE JAN 1 1216 1155 61 1518
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 4.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 AM
LOWEST 41 100 PM
AVERAGE 67
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 92 1986
MINIMUM TEMPERATURE (F) 50 35 1993
SUNRISE AND SUNSET
SEPTEMBER 30 2017.....SUNRISE 705 AM EDT SUNSET 654 PM EDT
OCTOBER 1 2017.......SUNRISE 706 AM EDT SUNSET 652 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$