CDUS45 KRIW 190732 CLIRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 132 AM MDT TUE MAY 19 2026 ................................... ...THE RIVERTON WY CLIMATE SUMMARY FOR MAY 18 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 42 5:17 PM 87 2009 68 -26 63 MINIMUM 30R 6:10 AM 32 2017 40 -10 43 AVERAGE 36 54 -18 53 PRECIPITATION (IN) YESTERDAY 0.04 0.74 0.07 -0.03 0.10 MONTH TO DATE 0.28 1.15 -0.87 0.97 SINCE MAR 1 0.85 3.00 -2.15 3.85 SINCE JAN 1 1.12 3.69 -2.57 4.35 SNOWFALL (IN) YESTERDAY 0.3 4.2 2017 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 T DEGREE DAYS HEATING YESTERDAY 29 11 18 12 MONTH TO DATE 207 258 -51 214 SINCE MAR 1 1332 1817 -485 1704 SINCE JUL 1 5625 7695 -2070 7051 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 30 HIGHEST WIND DIRECTION N (10) HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION N (10) AVERAGE WIND SPEED 15.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT SNOW FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 10:00 AM LOWEST 50 2:00 PM AVERAGE 71 .......................................................... THE RIVERTON WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 89 2009 MINIMUM TEMPERATURE (F) 41 31 2003 2019 SUNRISE AND SUNSET MAY 19 2026...........SUNRISE 5:46 AM MDT SUNSET 8:35 PM MDT MAY 20 2026...........SUNRISE 5:46 AM MDT SUNSET 8:36 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$