CDUS45 KRIW 200730 CLIRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 130 AM MDT WED MAY 20 2026 ................................... ...THE RIVERTON WY CLIMATE SUMMARY FOR MAY 19 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1995 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 56 6:01 PM 89 2009 68 -12 56 MINIMUM 29R 5:07 AM 31 2003 41 -12 40 2019 AVERAGE 43 54 -11 48 PRECIPITATION (IN) YESTERDAY 0.00 1.91 0.07 -0.07 0.09 MONTH TO DATE 0.28 1.22 -0.94 1.06 SINCE MAR 1 0.85 3.07 -2.22 3.94 SINCE JAN 1 1.12 3.76 -2.64 4.44 SNOWFALL (IN) YESTERDAY 0.0 7.5 2011 0.0 MONTH TO DATE 0.8 0.9 SINCE MAR 1 8.4 18.2 SINCE JUL 1 16.4 30.7 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 22 11 11 17 MONTH TO DATE 229 269 -40 231 SINCE MAR 1 1354 1828 -474 1721 SINCE JUL 1 5647 7706 -2059 7068 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 8 0 8 3 SINCE MAR 1 8 0 8 3 SINCE JAN 1 8 0 8 3 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (190) AVERAGE WIND SPEED 7.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 92 5:00 AM LOWEST 15 5:00 PM AVERAGE 54 .......................................................... THE RIVERTON WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 87 2006 MINIMUM TEMPERATURE (F) 41 26 2003 SUNRISE AND SUNSET MAY 20 2026...........SUNRISE 5:46 AM MDT SUNSET 8:36 PM MDT MAY 21 2026...........SUNRISE 5:45 AM MDT SUNSET 8:37 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$