


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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463 CDUS45 KRIW 290729 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 129 AM MDT SUN JUN 29 2025 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JUNE 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 70 MM 82 2013 67 3 60 2015 2016 MINIMUM 40 MM 31 2012 35 5 32 2014 AVERAGE 55 51 4 46 PRECIPITATION (IN) YESTERDAY 0.00 0.48 2020 0.06 -0.06 0.00 MONTH TO DATE 0.65 2.27 -1.62 1.24 SINCE JUN 1 0.65 2.27 -1.62 1.24 SINCE JAN 1 9.88 12.30 -2.42 13.44 DEGREE DAYS HEATING YESTERDAY 10 14 -4 19 MONTH TO DATE 421 511 -90 411 SINCE JUN 1 421 511 -90 411 SINCE JUL 1 9253 11984 -2731 10813 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 0 0 0 0 SINCE JAN 1 0 0 0 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 3.7 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 73 5:00 AM LOWEST 26 3:00 PM AVERAGE 50 .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 83 2015 MINIMUM TEMPERATURE (F) 36 30 2014 2024 SUNRISE AND SUNSET JUNE 29 2025..........SUNRISE 5:40 AM MDT SUNSET 9:11 PM MDT JUNE 30 2025..........SUNRISE 5:40 AM MDT SUNSET 9:10 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$