611 CDUS41 KLWX 170526 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1226 AM EST MON DEC 17 2012 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 16 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 52 1025 PM 74 1971 46 6 62 MINIMUM 46 645 AM 10 1917 32 14 43 AVERAGE 49 39 10 53 PRECIPITATION (IN) YESTERDAY 0.09 1.19 1902 0.09 0.00 0.00 MONTH TO DATE 0.38 1.68 -1.30 3.35 SINCE DEC 1 0.38 1.68 -1.30 3.35 SINCE JAN 1 29.80 38.37 -8.57 45.34 SNOWFALL (IN) YESTERDAY 0.0 6.0 1973 0.0 0.0 MONTH TO DATE 0.0 1.0 -1.0 SINCE JUL 1 T 1.5 -1.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 16 26 -10 12 MONTH TO DATE 262 375 -113 315 SINCE DEC 1 262 375 -113 315 SINCE JUL 1 973 1070 -97 910 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1975 1549 426 1925 .................................................................. WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (130) HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SE (130) AVERAGE WIND SPEED 3.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 900 PM LOWEST 61 1200 AM AVERAGE 77 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 46 64 1984 1939 MINIMUM TEMPERATURE (F) 32 10 1876 SUNRISE AND SUNSET DECEMBER 17 2012......SUNRISE 721 AM EST SUNSET 448 PM EST DECEMBER 18 2012......SUNRISE 722 AM EST SUNSET 448 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$