


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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960 CDUS45 KRIW 190734 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 134 AM MDT SAT APR 19 2025 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 18 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 54 2001 41 MM 28 MINIMUM MM MM -10 2013 17 MM -6 AVERAGE MM 29 MM 11 PRECIPITATION (IN) YESTERDAY 0.00 0.75 2014 0.08 -0.08 0.00 MONTH TO DATE 0.00 1.44 -1.44 0.70 SINCE MAR 1 0.00 3.34 -3.34 5.01 SINCE JAN 1 3.70 6.84 -3.14 9.48 DEGREE DAYS HEATING YESTERDAY MM 36 MM 54 MONTH TO DATE MM 683 MM 558 SINCE MAR 1 MM 2041 MM 1926 SINCE JUL 1 6920 10245 -3325 9400 COOLING YESTERDAY MM 0 MM 0 MONTH TO DATE MM 0 MM 0 SINCE MAR 1 MM 0 MM 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) 42 56 2010 MINIMUM TEMPERATURE (F) 18 1 2024 SUNRISE AND SUNSET APRIL 19 2025.........SUNRISE 6:30 AM MDT SUNSET 8:12 PM MDT APRIL 20 2025.........SUNRISE 6:29 AM MDT SUNSET 8:13 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$