544
CXUS55 KRIW 011532
CLMRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
919 AM MDT WED JUL 01 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
JUNE 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF JUNE 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 DRIER THAN NORMAL IN JUNE.
THE AVERAGE TEMPERATURE FOR RIVERTON IN JUNE WAS 64.3 DEGREES WHICH
WAS 0.9 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS
95 DEGREES ON THE 6TH. THIS BROKE THE 2006 RECORD OF 91. THE COLDEST
READING WAS 38 DEGREES ON THE 1ST.
PRECIPITATION FOR THE MONTH WAS 0.25 INCHES...WHICH IS 27 PERCENT OF
NORMAL. IT WAS THE 7TH DRIEST JUNE ON RECORD. THE WETTEST 24-HOURS
WAS THE 25TH WHEN 0.13 INCHES FELL. NO PRECIPITATION RECORDS WERE
BROKEN THIS MONTH. THE HIGHEST WIND GUST WAS 72 MPH FROM THE
SOUTHWEST ON THE 27TH. THERE WAS ALSO A GUST TO 66 MPH FROM THE
NORTHWEST ON THE 20TH.
..THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF JUNE 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 100 06/15/2021
LOW 32 06/04/1998
06/04/1998
06/03/1998
HIGHEST 95 06/06
LOWEST 38 06/01
AVG. MAXIMUM 79.8 78.7 1.1
AVG. MINIMUM 48.9 48.1 0.8
MEAN 64.3 63.4 0.9
DAYS MAX >= 90 3
DAYS MAX <= 32 0
DAYS MIN <= 32 0
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.80 2023
MINIMUM T 2012
TOTALS 0.25 0.94 -0.69 0.90
DAILY AVG. 0.01 0.03 -0.02
DAYS >= .01 2
DAYS >= .10 2
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.13 06/25 TO 06/25
STORM TOTAL 0.13
SNOWFALL (INCHES)
TOTALS 0.0 MM MM
SINCE 7/1 16.4 MM MM
SNOWDEPTH AVG. 0
DAYS >= 1.0 0
DEGREE DAYS
HEATING TOTAL 70 115 -45
SINCE 7/1 5790 7927 -2137
COOLING TOTAL 56 67 -11
SINCE 1/1 79 75 4
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 10.5
RESULTANT WIND SPEED/DIRECTION 3/300
HIGHEST WIND SPEED/DIRECTION 51/300 DATE 06/20
51/230 06/27
HIGHEST GUST SPEED/DIRECTION 72/230 DATE 06/27
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.12
NUMBER OF DAYS FAIR 26
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 39
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 1 FOG W/VIS <= 1/4 MILE 0
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO JULY 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 85 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 52 DEGREES. THE AVERAGE HIGH AT THE END OF THE MONTH IS 89
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 57. THE AVERAGE MONTHLY
PRECIPITATION IS 0.54 INCHES.
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