029
CXUS55 KRIW 021628
CLMRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1013 AM MDT FRI MAY 02 2025
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
APRIL 2025...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF APRIL 2025 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 SLIGHTLY COOLER AND DRIER THAN NORMAL IN APRIL
THE AVERAGE TEMPERATURE FOR RIVERTON IN APRIL WAS 43 DEGREES WHICH
WAS 0.5 DEGREES BELOW NORMAL. THE WARMEST READING FOR THE MONTH WAS
78 DEGREES ON THE 11TH. THE HIGH ON THE 12TH OF 75 BROKE THE 2024
RECORD OF 73. THE COLDEST READING WAS 16 DEGREES ON THE 19TH.
PRECIPITATION FOR THE MONTH WAS 1.16 INCHES...WHICH IS 97 PERCENT
OF NORMAL. THE WETTEST 24-HOURS WAS THE 17TH-18TH WHEN 0.26 INCHES
FELL. THE 17TH HAD 0.25 INCHES AND BROKE THE 2018 RECORD OF 0.16.
SNOWFALL FOR THE MONTH WAS 4 INCHES. THE SNOWIEST DAY WAS THE 17TH-
18TH WITH 2.3 INCHES. NO SNOWFALL RECORDS WERE BROKEN THIS MONTH.
THE HIGHEST WIND GUST WAS 48 MPH FROM THE NORTHWEST AND OCCURRED ON
THE 9TH.
..THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 85 04/24/2012
LOW 2 04/03/2020
HIGHEST 78 04/11
LOWEST 16 04/19
AVG. MAXIMUM 56.7 56.8 -0.1
AVG. MINIMUM 29.3 30.1 -0.8
MEAN 43.0 43.5 -0.5
DAYS MAX >= 90 0
DAYS MAX <= 32 1
DAYS MIN <= 32 18
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.31 2016
MINIMUM 0.10 2007
TOTALS 1.16 1.20 -0.04 0.44
DAILY AVG. 0.04 0.04 0.00
DAYS >= .01 10
DAYS >= .10 5
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.26 04/17 TO 04/18
STORM TOTAL 0.25
SNOWFALL (INCHES)
TOTALS 4.0 MM MM
SINCE 7/1 29.8 MM MM
SNOWDEPTH AVG. 0
DAYS >= 1.0 1
DEGREE DAYS
HEATING TOTAL 650 647 3
SINCE 7/1 6837 7435 -598
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 8.8
RESULTANT WIND SPEED/DIRECTION 3/330
HIGHEST WIND SPEED/DIRECTION 36/300 DATE 04/09
HIGHEST GUST SPEED/DIRECTION 48/300 DATE 04/09
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.30
NUMBER OF DAYS FAIR 20
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 56
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 2
LIGHT SNOW 5 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 4
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO MAY 2025. THE AVERAGE HIGH TEMPERATURE ON THE FIRST
OF THE MONTH IS 61 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 34
DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 73 DEGREES AND
THE AVERAGE LOW TEMPERATURE IS 44. THE AVERAGE MONTHLY PRECIPITATION
IS 1.92 INCHES.
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