


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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034 CDUS45 KRIW 120726 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 126 AM MDT SAT JUL 12 2025 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 11 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 72 MM 83 2024 72 0 83 MINIMUM 41 MM 33 2008 38 3 42 AVERAGE 57 55 2 63 PRECIPITATION (IN) YESTERDAY 0.00 0.26 2011 0.05 -0.05 0.00 MONTH TO DATE 0.13 0.53 -0.40 0.12 SINCE JUN 1 0.78 2.91 -2.13 1.36 SINCE JAN 1 10.01 12.94 -2.93 13.56 DEGREE DAYS HEATING YESTERDAY 8 10 -2 2 MONTH TO DATE 95 125 -30 132 SINCE JUN 1 537 663 -126 561 SINCE JUL 1 95 125 -30 132 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 6 HIGHEST WIND DIRECTION E (99) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (99) AVERAGE WIND SPEED 3.1 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 76 5:00 AM LOWEST 24 5:00 PM AVERAGE 50 .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 85 2002 MINIMUM TEMPERATURE (F) 39 27 2008 SUNRISE AND SUNSET JULY 12 2025..........SUNRISE 5:49 AM MDT SUNSET 9:06 PM MDT JULY 13 2025..........SUNRISE 5:50 AM MDT SUNSET 9:05 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$