


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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325 CDUS45 KRIW 290730 CLIGEY CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 130 AM MDT FRI AUG 29 2025 ................................... ...THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 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 85 2:47 PM 98 2012 85 0 80 MINIMUM 59 6:35 AM 42 2004 52 7 50 AVERAGE 72 69 3 65 PRECIPITATION (IN) YESTERDAY T 0.25 2018 0.01 -0.01 0.00 MONTH TO DATE 0.12 0.19 -0.07 0.59 SINCE JUN 1 1.44 1.43 0.01 2.08 SINCE JAN 1 4.15 3.78 0.37 5.31 DEGREE DAYS HEATING YESTERDAY 0 1 -1 0 MONTH TO DATE 0 7 -7 7 SINCE JUN 1 46 73 -27 40 SINCE JUL 1 0 11 -11 11 COOLING YESTERDAY 7 5 2 0 MONTH TO DATE 264 227 37 246 SINCE JUN 1 704 658 46 733 SINCE JAN 1 725 682 43 733 ................................................................... WIND (MPH) HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 5.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 76 5:00 PM LOWEST 28 3:00 PM AVERAGE 52 .......................................................... THE GREYBULL WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 85 100 2012 MINIMUM TEMPERATURE (F) 52 42 2018 SUNRISE AND SUNSET AUGUST 29 2025........SUNRISE 6:32 AM MDT SUNSET 7:53 PM MDT AUGUST 30 2025........SUNRISE 6:33 AM MDT SUNSET 7:52 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$