


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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485 CDUS45 KRIW 060737 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 137 AM MDT WED AUG 06 2025 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 5 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 71 3:35 PM 82 2012 73 -2 76 MINIMUM 40 4:25 AM 34 2012 39 1 42 2016 AVERAGE 56 56 0 59 PRECIPITATION (IN) YESTERDAY 0.00 0.62 2014 0.04 -0.04 0.02 MONTH TO DATE 0.01 0.21 -0.20 0.05 SINCE JUN 1 1.40 4.10 -2.70 1.79 SINCE JAN 1 10.63 14.13 -3.50 13.99 DEGREE DAYS HEATING YESTERDAY 9 9 0 6 MONTH TO DATE 45 43 2 26 SINCE JUN 1 718 877 -159 717 SINCE JUL 1 276 339 -63 288 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 (280) HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 2.9 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 79 4:00 AM LOWEST 17 2:00 PM AVERAGE 48 .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 84 2001 MINIMUM TEMPERATURE (F) 39 30 2018 SUNRISE AND SUNSET AUGUST 6 2025........SUNRISE 6:14 AM MDT SUNSET 8:40 PM MDT AUGUST 7 2025........SUNRISE 6:16 AM MDT SUNSET 8:38 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$