National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-10-20 05:26 UTC
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192
CDUS41 KLWX 200527
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 AM EDT FRI OCT 20 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 19 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 73 352 PM 87 2016 67 6 87
MINIMUM 37 637 AM 25 1976 43 -6 64
AVERAGE 55 55 0 76
PRECIPITATION (IN)
YESTERDAY 0.00 1.36 1966 0.10 -0.10 0.03
MONTH TO DATE 1.48 1.98 -0.50 0.43
SINCE SEP 1 3.23 5.90 -2.67 2.98
SINCE JAN 1 36.23 33.90 2.33 30.98
SNOWFALL (IN)
YESTERDAY 0.0 0.1 1972 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 10 10 0 0
MONTH TO DATE 75 150 -75 93
SINCE SEP 1 115 206 -91 99
SINCE JUL 1 116 208 -92 99
COOLING
YESTERDAY 0 0 0 11
MONTH TO DATE 64 16 48 24
SINCE SEP 1 219 157 62 279
SINCE JAN 1 1280 1173 107 1542
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 3.1
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 100 300 AM
LOWEST 35 300 PM
AVERAGE 68
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 83 2016
1969
MINIMUM TEMPERATURE (F) 42 20 1972
SUNRISE AND SUNSET
OCTOBER 20 2017.......SUNRISE 725 AM EDT SUNSET 624 PM EDT
OCTOBER 21 2017.......SUNRISE 726 AM EDT SUNSET 623 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$