CDUS45 KRIW 180733 CLIRIW CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 133 AM MDT MON MAY 18 2026 ................................... ...THE RIVERTON WY CLIMATE SUMMARY FOR MAY 17 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 52 2:09 PM 83 2006 67 -15 69 MINIMUM 34 11:49 PM 30 1999 40 -6 40 AVERAGE 43 54 -11 55 PRECIPITATION (IN) YESTERDAY 0.15 1.12 0.06 0.09 0.00 MONTH TO DATE 0.24 1.08 -0.84 0.87 SINCE MAR 1 0.81 2.93 -2.12 3.75 SINCE JAN 1 1.08 3.62 -2.54 4.25 SNOWFALL (IN) YESTERDAY T R 0.0 2021 0.0 MONTH TO DATE 0.5 0.9 SINCE MAR 1 8.1 18.2 SINCE JUL 1 16.1 30.7 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 22 12 10 10 MONTH TO DATE 178 247 -69 202 SINCE MAR 1 1303 1806 -503 1692 SINCE JUL 1 5596 7684 -2088 7039 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 17 HIGHEST WIND DIRECTION N (10) HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (50) AVERAGE WIND SPEED 10.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN LIGHT SNOW RELATIVE HUMIDITY (PERCENT) HIGHEST 93 7:00 PM LOWEST 32 12:00 AM AVERAGE 63 .......................................................... THE RIVERTON WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 87 2009 MINIMUM TEMPERATURE (F) 40 32 2017 SUNRISE AND SUNSET MAY 18 2026...........SUNRISE 5:47 AM MDT SUNSET 8:34 PM MDT MAY 19 2026...........SUNRISE 5:46 AM MDT SUNSET 8:35 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$