907
CXUS55 KRIW 031847
CLMRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1229 PM MDT MON AUG 03 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
JULY 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF JULY 2026 WILL BE
AVAILABLE IN APPROXIMATELY 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW
..RIVERTON WAS WARMER AND WETTER THAN NORMAL IN JULY
THE AVERAGE TEMPERATURE FOR RIVERTON IN JULY WAS 77.1 DEGREES WHICH
WAS 5.2 DEGREES ABOVE NORMAL. IT WAS THE WARMEST JULY ON RECORD. THE
WARMEST READING FOR THE MONTH WAS 104 DEGREES ON THE 12TH. THIS
BROKE 99 DEGREES FROM 2002 AND 2024. IT ALSO SETS A NEW ALL-TIME
RECORD FOR JULY AND FOR THE YEAR. PREVIOUS RECORD WAS 102 IN 2005
AND 2006. THE 11TH HIGH OF 100 BROKE 99 FROM 2024. THE 14TH HIT 102
AND BROKE 100 FROM 2002. THE 20TH HIGH OF 99 TIED 2005. THE 25TH HIT
100 AND BROKE 96 DEGREES FROM 2011 AND 2021. THE 26TH HIGH OF 100
BROKE 97 FROM 2008 AND 2021. THE COLDEST READING WAS 47 DEGREES ON
THE 1ST.
PRECIPITATION FOR THE MONTH WAS 0.61 INCHES...WHICH IS 113 PERCENT
OF NORMAL. THE WETTEST 24-HOURS WAS THE 21ST-22ND WHEN 0.39 INCHES
FELL. THE 21ST HAD 0.13 INCHES AND BROKE 0.06 FROM 2002. THE HIGHEST
WIND GUST WAS 61 MPH FROM THE NORTHWEST ON THE 7TH.
..THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF JULY 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 104 07/12/2026
LOW 40 07/07/2010
HIGHEST 104R 07/12
LOWEST 47 07/01
AVG. MAXIMUM 93.2R 88.1 5.1
AVG. MINIMUM 61.1 55.7 5.4
MEAN 77.1R 71.9 5.2
DAYS MAX >= 90 24
DAYS MAX <= 32 0
DAYS MIN <= 32 0
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 1.67 2007
MINIMUM T 2016
TOTALS 0.61 0.54 0.07 0.31
DAILY AVG. 0.02 0.02 0.00
DAYS >= .01 6
DAYS >= .10 2
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.39 07/21 TO 07/22
STORM TOTAL 0.33
SNOWFALL (INCHES)
TOTALS 0.0 MM MM
SINCE 7/1 0.0 MM MM
SNOWDEPTH AVG. 0
DAYS >= 1.0 0
DEGREE DAYS
HEATING TOTAL 0 10 -10
SINCE 7/1 0 6 -6
COOLING TOTAL 384 224 160
SINCE 1/1 463 299 164
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 8.3
RESULTANT WIND SPEED/DIRECTION 3/340
HIGHEST WIND SPEED/DIRECTION 43/300 DATE 07/07
HIGHEST GUST SPEED/DIRECTION 61/310 DATE 07/07
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.08
NUMBER OF DAYS FAIR 30
NUMBER OF DAYS PC 1
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 38
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 6 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 3
LIGHT RAIN 13 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.
LOOKING AHEAD TO AUGUST 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 89 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 57 DEGREES. THE AVERAGE HIGH AT THE END OF THE MONTH IS 81
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 50. THE AVERAGE MONTHLY
PRECIPITATION IS 0.42 INCHES.
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