409 CDUS41 KLWX 310520 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1220 AM EST TUE JAN 31 2012 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 30 2012... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2012 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 48 441 PM 77 2002 44 4 44 MINIMUM 34 759 AM -6 1873 29 5 27 AVERAGE 41 36 5 36 PRECIPITATION (IN) YESTERDAY 0.00 0.97 1939 0.09 -0.09 0.00 MONTH TO DATE 2.19 2.71 -0.52 2.25 SINCE DEC 1 7.09 5.76 1.33 4.03 SINCE JAN 1 2.19 2.71 -0.52 2.25 SNOWFALL (IN) YESTERDAY 0.0 11.5 1930 0.2 -0.2 MONTH TO DATE 1.7 5.4 -3.7 SINCE JUL 1 1.7 8.2 -6.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 24 28 -4 29 MONTH TO DATE 734 869 -135 933 SINCE DEC 1 1347 1655 -308 1866 SINCE JUL 1 1942 2350 -408 2438 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 0 0 0 0 .................................................................. WIND (MPH) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 9.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 59 1200 AM LOWEST 21 400 PM AVERAGE 40 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 44 71 1916 MINIMUM TEMPERATURE (F) 29 -2 1905 SUNRISE AND SUNSET JANUARY 31 2012.......SUNRISE 716 AM EST SUNSET 528 PM EST FEBRUARY 1 2012......SUNRISE 715 AM EST SUNSET 529 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$