CDUS45 KRIW 290737 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 137 AM MDT TUE APR 29 2025 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 28 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM MM MM 62 2007 44 MM MM 2018 MINIMUM MM MM 9 2019 20 MM MM AVERAGE MM 32 MM MM PRECIPITATION (IN) YESTERDAY MM 0.58 2009 0.07 MM MM MONTH TO DATE 1.82 2.15 -0.33 0.95 SINCE MAR 1 2.31 4.05 -1.74 5.26 SINCE JAN 1 6.01 7.55 -1.54 9.73 DEGREE DAYS HEATING YESTERDAY MM 33 MM MM MONTH TO DATE 961 1025 -64 747 SINCE MAR 1 1105 2383 -1278 2115 SINCE JUL 1 8025 10587 -2562 9589 COOLING YESTERDAY MM 0 MM MM MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 0 0 0 SINCE JAN 1 0 0 0 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED MM SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER MM WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST MM LOWEST MM AVERAGE MM .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 65 2007 MINIMUM TEMPERATURE (F) 21 7 2019 SUNRISE AND SUNSET APRIL 29 2025.........SUNRISE 6:14 AM MDT SUNSET 8:24 PM MDT APRIL 30 2025.........SUNRISE 6:13 AM MDT SUNSET 8:25 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$