589 CDUS41 KLWX 160538 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1237 AM EST SUN DEC 16 2012 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 15 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 54 326 PM 71 1971 47 7 63 MINIMUM 37 655 AM 6 1904 33 4 43 AVERAGE 46 40 6 53 PRECIPITATION (IN) YESTERDAY 0.00 1.38 1901 0.10 -0.10 0.01 MONTH TO DATE 0.29 1.59 -1.30 3.35 SINCE DEC 1 0.29 1.59 -1.30 3.35 SINCE JAN 1 29.71 38.28 -8.57 45.34 SNOWFALL (IN) YESTERDAY 0.0 4.5 1905 0.1 -0.1 MONTH TO DATE 0.0 1.0 -1.0 SINCE JUL 1 T 1.5 -1.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 19 25 -6 12 MONTH TO DATE 246 349 -103 303 SINCE DEC 1 246 349 -103 303 SINCE JUL 1 957 1044 -87 898 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 10 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SE (130) AVERAGE WIND SPEED 4.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 85 400 AM LOWEST 46 300 PM AVERAGE 66 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 46 74 1971 MINIMUM TEMPERATURE (F) 32 10 1917 SUNRISE AND SUNSET DECEMBER 16 2012......SUNRISE 720 AM EST SUNSET 448 PM EST DECEMBER 17 2012......SUNRISE 721 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. $$