473 CDUS45 KRIW 200735 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1235 AM MST MON DEC 20 2010 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 19 2010... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1939 TO 2010 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 41 1108 PM 51 2004 33 8 36 MINIMUM 12 145 AM -24 1990 13 -1 22 AVERAGE 27 23 4 29 PRECIPITATION (IN) YESTERDAY 0.01 0.42 1978 0.02 -0.01 0.00 MONTH TO DATE 0.63 0.38 0.25 0.30 SINCE DEC 1 0.63 0.38 0.25 0.30 SINCE JAN 1 11.88 12.79 -0.91 15.10 SNOWFALL (IN) YESTERDAY 0.0 0.4 -0.4 0.0 MONTH TO DATE 8.3 7.6 0.7 6.8 SINCE DEC 1 8.3 7.6 0.7 6.8 SINCE JUL 1 17.1 28.7 -11.6 22.5 SNOW DEPTH 3 DEGREE DAYS HEATING YESTERDAY 38 41 -3 36 MONTH TO DATE 709 757 -48 946 SINCE DEC 1 709 757 -48 946 SINCE JUL 1 2378 2588 -210 2887 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 423 428 -5 221 .................................................................. WIND (MPH) HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 8.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN LIGHT SNOW FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 96 1200 PM LOWEST 69 700 AM AVERAGE 83 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 33 56 1941 MINIMUM TEMPERATURE (F) 13 -36 1990 SUNRISE AND SUNSET DECEMBER 20 2010......SUNRISE 733 AM MST SUNSET 434 PM MST DECEMBER 21 2010......SUNRISE 734 AM MST SUNSET 434 PM MST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$