818 CDUS45 KRIW 180741 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 134 AM MDT MON APR 18 2011 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR APRIL 17 2011... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1939 TO 2011 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 55 MM 81 1994 56 -1 62 MINIMUM 40 MM 15 1945 29 11 27 AVERAGE 48 43 5 45 PRECIPITATION (IN) YESTERDAY T 0.64 1986 0.05 -0.05 0.02 MONTH TO DATE 0.85 0.74 0.11 0.90 SINCE MAR 1 1.31 1.64 -0.33 2.47 SINCE JAN 1 2.61 2.86 -0.25 3.09 SNOWFALL (IN) YESTERDAY MM 0.5 MM 0.0 MONTH TO DATE 3.6 8.5 -4.9 11.4 SINCE MAR 1 10.6 20.8 -10.2 23.5 SINCE JUL 1 60.7 75.6 -14.9 73.3 SNOW DEPTH MM DEGREE DAYS HEATING YESTERDAY 17 22 -5 20 MONTH TO DATE 361 405 -44 429 SINCE MAR 1 1219 1326 -107 1256 SINCE JUL 1 6581 6804 -223 7044 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 0 0 0 SINCE JAN 1 0 0 0 0 .................................................................. WIND (MPH) HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (250) HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 13.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 70 1100 PM LOWEST 42 500 AM AVERAGE 56 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 57 80 2001 1946 MINIMUM TEMPERATURE (F) 30 13 1966 SUNRISE AND SUNSET APRIL 18 2011.........SUNRISE 620 AM MDT SUNSET 752 PM MDT APRIL 19 2011.........SUNRISE 618 AM MDT SUNSET 753 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$