938 CDUS45 KRIW 170753 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1250 AM MST SUN DEC 17 2017 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 16 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1939 TO 2017 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 39 309 AM 59 1980 33 6 16 MINIMUM 24 1159 PM -31 1964 13 11 -9 AVERAGE 32 23 9 4 PRECIPITATION (IN) YESTERDAY 0.23 0.36 2016 0.02 0.21 0.36 MONTH TO DATE 0.63 0.26 0.37 0.84 SINCE DEC 1 0.63 0.26 0.37 0.84 SINCE JAN 1 13.36 12.29 1.07 15.10 SNOWFALL (IN) YESTERDAY 1.8 0.4 1.4 5.2 MONTH TO DATE 7.2 5.8 1.4 14.3 SINCE DEC 1 7.2 5.8 1.4 14.3 SINCE JUL 1 16.4 25.3 -8.9 17.5 SNOW DEPTH T DEGREE DAYS HEATING YESTERDAY 33 42 -9 61 MONTH TO DATE 541 653 -112 812 SINCE DEC 1 541 653 -112 812 SINCE JUL 1 2285 2507 -222 2238 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 448 422 26 451 .................................................................. WIND (MPH) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 11.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT SNOW FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 1000 AM LOWEST 33 1200 AM AVERAGE 63 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 33 60 1980 MINIMUM TEMPERATURE (F) 13 -31 1964 SUNRISE AND SUNSET DECEMBER 17 2017......SUNRISE 731 AM MST SUNSET 433 PM MST DECEMBER 18 2017......SUNRISE 732 AM MST SUNSET 433 PM MST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$