748
CDUS41 KLWX 210520
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
119 AM EDT SUN SEP 21 2008
...................................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 20 2008...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1871 TO 2008
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 75 341 PM 94 1895 78 -3 75
MINIMUM 56 545 AM 41 1916 61 -5 60
AVERAGE 66 69 -3 68
PRECIPITATION (IN)
YESTERDAY 0.00 1.43 1938 0.13 -0.13 0.00
MONTH TO DATE 4.11 2.55 1.56 0.60
SINCE SEP 1 4.11 2.55 1.56 0.60
SINCE JAN 1 37.66 28.81 8.85 21.64
SNOWFALL (IN)
YESTERDAY 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 3 -3 10
SINCE SEP 1 0 3 -3 10
SINCE JUL 1 0 10 -10 10
COOLING
YESTERDAY 1 6 -5 3
MONTH TO DATE 231 157 74 168
SINCE SEP 1 231 157 74 168
SINCE JAN 1 1620 1456 164 1596
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 3.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 300 AM
LOWEST 38 200 PM
AVERAGE 55
..........................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1895
MINIMUM TEMPERATURE (F) 60 41 1956
SUNRISE AND SUNSET
SEPTEMBER 21 2008.....SUNRISE 655 AM EDT SUNSET 706 PM EDT
SEPTEMBER 22 2008.....SUNRISE 656 AM EDT SUNSET 704 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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