939 CDUS41 KLWX 210520 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 120 AM EDT FRI SEP 21 2012 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 20 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 75 358 PM 94 1895 78 -3 71 MINIMUM 54 532 AM 41 1916 61 -7 64 AVERAGE 65 69 -4 68 PRECIPITATION (IN) YESTERDAY 0.00 1.43 1938 0.13 -0.13 0.16 MONTH TO DATE 3.51 2.42 1.09 7.30 SINCE SEP 1 3.51 2.42 1.09 7.30 SINCE JAN 1 22.22 28.82 -6.60 34.60 SNOWFALL (IN) YESTERDAY 0.0 MM MM 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 5 -5 14 SINCE SEP 1 0 5 -5 14 SINCE JUL 1 0 5 -5 14 COOLING YESTERDAY 0 5 -5 3 MONTH TO DATE 183 164 19 138 SINCE SEP 1 183 164 19 138 SINCE JAN 1 1884 1475 409 1840 .................................................................. WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (120) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (110) AVERAGE WIND SPEED 5.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 80 700 AM LOWEST 44 1100 AM AVERAGE 62 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 96 1895 MINIMUM TEMPERATURE (F) 61 41 1956 SUNRISE AND SUNSET SEPTEMBER 21 2012.....SUNRISE 655 AM EDT SUNSET 706 PM EDT SEPTEMBER 22 2012.....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. $$