CDUS45 KRIW 120731 CLIRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1231 AM MST FRI DEC 12 2025 ................................... ...THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 11 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1995 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 59R 3:33 PM 59 2004 31 28 38 MINIMUM 36 5:51 AM -9 2000 9 27 17 AVERAGE 48 20 28 28 PRECIPITATION (IN) YESTERDAY 0.00 0.08 0.01 -0.01 0.00 MONTH TO DATE 0.14 0.10 0.04 T SINCE DEC 1 0.14 0.10 0.04 T SINCE JAN 1 9.10 8.40 0.70 6.22 SNOWFALL (IN) YESTERDAY 0.0 1.2 2020 0.0 MONTH TO DATE 1.5 T SINCE DEC 1 1.5 T SINCE JUL 1 3.5 3.8 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 17 45 -28 37 MONTH TO DATE 356 478 -122 391 SINCE DEC 1 356 478 -122 391 SINCE JUL 1 1799 2375 -576 1908 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 611 499 112 610 ................................................................... WIND (MPH) HIGHEST WIND SPEED 39 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED 55 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 19.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 67 2:00 AM LOWEST 22 12:00 PM AVERAGE 45 .......................................................... THE RIVERTON WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 31 53 1995 MINIMUM TEMPERATURE (F) 9 -10 2007 SUNRISE AND SUNSET DECEMBER 12 2025......SUNRISE 7:36 AM MST SUNSET 4:39 PM MST DECEMBER 13 2025......SUNRISE 7:37 AM MST SUNSET 4:39 PM MST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$