633
CDUS41 KLWX 180522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT THU APR 18 2019
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 17 2019
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2019
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 73 202 PM 93 2002 67 6 45
MINIMUM 54 1159 PM 27 1983 43 11 36
AVERAGE 64 55 9 41
PRECIPITATION (IN)
YESTERDAY 0.00 1.44 2000 0.11 -0.11 0.00
MONTH TO DATE 0.97 1.99 -1.02 1.62
SINCE MAR 1 5.52 5.37 0.15 3.41
SINCE JAN 1 12.98 10.79 2.19 9.80
SNOWFALL (IN)
YESTERDAY 0.0 T 1983 0.0 0.0
MONTH TO DATE 0.0 0.3 -0.3
SINCE JUL 1 26.5 22.0 4.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 1 11 -10 24
MONTH TO DATE 157 223 -66 251
SINCE MAR 1 841 870 -29 1030
SINCE JUL 1 4346 4460 -114 4381
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 12 5 7 15
SINCE MAR 1 12 8 4 15
SINCE JAN 1 12 8 4 20
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 1100 PM
LOWEST 38 100 PM
AVERAGE 55
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 90 1976
MINIMUM TEMPERATURE (F) 43 29 2018
SUNRISE AND SUNSET
APRIL 18 2019.........SUNRISE 629 AM EDT SUNSET 750 PM EDT
APRIL 19 2019.........SUNRISE 628 AM EDT SUNSET 751 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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