


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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917 CDUS45 KRIW 220727 CLIGEY CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 127 AM MDT THU MAY 22 2025 ................................... ...THE GREYBULL WY CLIMATE SUMMARY FOR MAY 21 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 64 5:57 PM 88 2023 72 -8 53 MINIMUM 41 3:27 AM 31 2001 46 -5 43 AVERAGE 53 59 -6 48 PRECIPITATION (IN) YESTERDAY 0.02 0.36 2007 0.05 -0.03 0.18 MONTH TO DATE 1.54 0.82 0.72 1.70 SINCE MAR 1 2.46 1.57 0.89 2.97 SINCE JAN 1 2.67 1.84 0.83 3.02 DEGREE DAYS HEATING YESTERDAY 12 7 5 17 MONTH TO DATE 180 217 -37 244 SINCE MAR 1 1460 1607 -147 1539 SINCE JUL 1 6945 7431 -486 6795 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 9 7 2 0 SINCE MAR 1 9 8 1 0 SINCE JAN 1 9 8 1 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (340) HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 6.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 6:00 AM LOWEST 29 4:00 PM AVERAGE 61 .......................................................... THE GREYBULL WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 89 2006 2023 MINIMUM TEMPERATURE (F) 46 31 2022 SUNRISE AND SUNSET MAY 22 2025...........SUNRISE 5:37 AM MDT SUNSET 8:41 PM MDT MAY 23 2025...........SUNRISE 5:37 AM MDT SUNSET 8:42 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$