653
CDUS45 KRIW 150734
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
134 AM MDT FRI MAY 15 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 14 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 77 4:55 PM 89 2001 70 7 58
MINIMUM 51 4:46 AM 32 2004 43 8 44
AVERAGE 64 56 8 51
PRECIPITATION (IN)
YESTERDAY 0.00 0.50 2024 0.05 -0.05 0.23
MONTH TO DATE 0.22 0.49 -0.27 1.35
SINCE MAR 1 1.12 1.24 -0.12 2.27
SINCE JAN 1 1.16 1.51 -0.35 2.48
DEGREE DAYS
HEATING
YESTERDAY 1 9 -8 14
MONTH TO DATE 117 162 -45 106
SINCE MAR 1 1236 1552 -316 1386
SINCE JUL 1 5624 7376 -1752 6871
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 10 0 10 9
SINCE MAR 1 10 1 9 9
SINCE JAN 1 10 1 9 9
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WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 12.8
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 50 12:00 AM
LOWEST 9 2:00 PM
AVERAGE 30
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 87 2012
MINIMUM TEMPERATURE (F) 43 35 2004
SUNRISE AND SUNSET
MAY 15 2026...........SUNRISE 5:45 AM MDT SUNSET 8:33 PM MDT
MAY 16 2026...........SUNRISE 5:43 AM MDT SUNSET 8:35 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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