Climatological Report (Monthly)
Issued by NWS
Issued by NWS
200
CXUS55 KRIW 011708
CLMGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1108 AM MDT FRI AUG 01 2025
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...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JULY 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 108 07/14/2002
LOW 44 07/07/2010
07/12/2008
HIGHEST 101 07/09
LOWEST 51 07/06
07/12
AVG. MAXIMUM 91.3 91.4 -0.1
AVG. MINIMUM 58.1 58.3 -0.2
MEAN 74.7 74.9 -0.2
DAYS MAX >= 90 19
DAYS MAX <= 32 0
DAYS MIN <= 32 0
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 1.09 2024
MINIMUM 0.00 2011
TOTALS 0.86 0.16 0.70 1.09
DAILY AVG. 0.03 0.01 0.02
DAYS >= .01 7
DAYS >= .10 3
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.28 07/30 TO 07/30
STORM TOTAL 0.28
DEGREE DAYS
HEATING TOTAL 0 4 -4
SINCE 7/1 0 0 0
COOLING TOTAL 308 309 -1
SINCE 1/1 461 455 6
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WIND (MPH)
AVERAGE WIND SPEED 7.3
RESULTANT WIND SPEED/DIRECTION 3/320
HIGHEST WIND SPEED/DIRECTION 49/240 DATE 07/30
HIGHEST GUST SPEED/DIRECTION 67/280 DATE 07/04
67/240 07/30
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.08
NUMBER OF DAYS FAIR 30
NUMBER OF DAYS PC 0
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 45
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 11 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 5
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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