001 CDUS45 KRIW 210746 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1246 AM MST TUE DEC 21 2010 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 20 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 40 200 AM 56 1941 33 7 43 MINIMUM 29 951 PM -36 1990 13 16 29 AVERAGE 35 23 12 36 PRECIPITATION (IN) YESTERDAY 0.01 0.15 1968 0.02 -0.01 0.00 MONTH TO DATE 0.64 0.40 0.24 0.30 SINCE DEC 1 0.64 0.40 0.24 0.30 SINCE JAN 1 11.89 12.81 -0.92 15.10 SNOWFALL (IN) YESTERDAY MM 0.4 MM 0.0 MONTH TO DATE 8.3 8.0 0.3 6.8 SINCE DEC 1 8.3 8.0 0.3 6.8 SINCE JUL 1 17.1 29.1 -12.0 22.5 SNOW DEPTH 3 DEGREE DAYS HEATING YESTERDAY 30 42 -12 29 MONTH TO DATE 739 799 -60 975 SINCE DEC 1 739 799 -60 975 SINCE JUL 1 2408 2630 -222 2916 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 30 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 14.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 85 1200 AM LOWEST 56 1200 PM AVERAGE 71 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 33 53 1969 MINIMUM TEMPERATURE (F) 13 -41 1990 SUNRISE AND SUNSET DECEMBER 21 2010......SUNRISE 734 AM MST SUNSET 434 PM MST DECEMBER 22 2010......SUNRISE 734 AM MST SUNSET 435 PM MST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$