511
CDUS45 KRIW 170742
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
142 AM MDT SAT MAY 17 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 16 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 66 MM 90 2012 71 -5 77
MINIMUM 41 MM 36 2009 44 -3 46
AVERAGE 54 57 -3 62
PRECIPITATION (IN)
YESTERDAY T 0.30 2016 0.04 -0.04 0.00
MONTH TO DATE 1.35 0.57 0.78 1.47
SINCE MAR 1 2.27 1.32 0.95 2.74
SINCE JAN 1 2.48 1.59 0.89 2.79
DEGREE DAYS
HEATING
YESTERDAY 11 8 3 3
MONTH TO DATE 129 179 -50 198
SINCE MAR 1 1409 1569 -160 1493
SINCE JUL 1 6894 7393 -499 6749
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 9 2 7 0
SINCE MAR 1 9 3 6 0
SINCE JAN 1 9 3 6 0
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WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 8.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 5:00 AM
LOWEST 31 3:00 PM
AVERAGE 60
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 89 2006
MINIMUM TEMPERATURE (F) 44 35 1999
SUNRISE AND SUNSET
MAY 17 2025...........SUNRISE 5:42 AM MDT SUNSET 8:36 PM MDT
MAY 18 2025...........SUNRISE 5:41 AM MDT SUNSET 8:37 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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