


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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141 CDUS45 KRIW 040734 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 134 AM MDT MON AUG 04 2025 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 3 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 73 4:18 PM 84 2024 73 0 84 MINIMUM 38 5:40 AM 32 2006 40 -2 43 AVERAGE 56 56 0 64 PRECIPITATION (IN) YESTERDAY 0.00 0.88 2023 0.04 -0.04 0.00 MONTH TO DATE 0.01 0.13 -0.12 0.00 SINCE JUN 1 1.40 4.02 -2.62 1.74 SINCE JAN 1 10.63 14.05 -3.42 13.94 DEGREE DAYS HEATING YESTERDAY 9 9 0 1 MONTH TO DATE 27 25 2 14 SINCE JUN 1 700 859 -159 705 SINCE JUL 1 258 321 -63 276 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 1 0 1 0 SINCE JAN 1 1 0 1 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 2.7 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 89 5:00 AM LOWEST 18 7:00 PM AVERAGE 54 .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 78 2017 MINIMUM TEMPERATURE (F) 39 29 2012 SUNRISE AND SUNSET AUGUST 4 2025........SUNRISE 6:12 AM MDT SUNSET 8:43 PM MDT AUGUST 5 2025........SUNRISE 6:13 AM MDT SUNSET 8:41 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$