Climatological Report (Monthly)
Issued by NWS
Issued by NWS
334
CXUS55 KRIW 011708
CLMP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1108 AM MDT FRI AUG 01 2025
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...THE LAKE YELLOWSTONE 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 86 07/14/2002
07/31/2000
LOW 27 07/12/2008
HIGHEST 82 07/01
LOWEST 31 07/06
AVG. MAXIMUM 75.4 72.2 3.2
AVG. MINIMUM 39.3 38.7 0.6
MEAN 57.3 55.5 1.8
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 1
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.42 2007
MINIMUM 0.17 2022
TOTALS 0.74 1.51 -0.77 0.50
DAILY AVG. 0.02 0.05 -0.03
DAYS >= .01 6
DAYS >= .10 3
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.25 07/30 TO 07/30
STORM TOTAL 0.25
DEGREE DAYS
HEATING TOTAL 231 296 -65
SINCE 7/1 231 294 -63
COOLING TOTAL 1 0 1
SINCE 1/1 1 0 1
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WIND (MPH)
AVERAGE WIND SPEED 2.6
RESULTANT WIND SPEED/DIRECTION 0/090
HIGHEST WIND SPEED/DIRECTION 18/290 DATE 07/08
HIGHEST GUST SPEED/DIRECTION 44/270 DATE 07/15
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.00
NUMBER OF DAYS FAIR 31
NUMBER OF DAYS PC 0
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 54
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 0 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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