153
CXUS55 KRIW 011700
CLMBYG
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1055 AM MDT FRI MAY 01 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR BUFFALO FOR THE MONTH OF
APRIL 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF APRIL 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
...BUFFALO WAS COLDER AND DRIER THAN NORMAL IN APRIL..
THE AVERAGE TEMPERATURE FOR BUFFALO IN APRIL WAS 42.4 DEGREES WHICH
WAS 0.5 DEGREES BELOW NORMAL. THE WARMEST READING FOR THE MONTH WAS
79 DEGREES ON THE 21ST. THIS BROKE THE 2022 RECORD OF 74. THE 20TH
HIT 73 AND BROKE 69 FROM 2009, 2012 AND 2019. THE COLDEST READING OF
THE MONTH WAS 21 DEGREES ON THE 18TH.
PRECIPITATION FOR THE MONTH WAS 0.34 INCHES...WHICH IS 23 PERCENT OF
NORMAL. IT WAS THE 2ND DRIEST APRIL ON RECORD. THE WETTEST 24-HOUR
PERIOD WAS ON THE 23RD-24TH WITH 0.11 INCHES. THERE WERE NO
PRECIPITATION RECORDS BROKEN THIS MONTH. THE HIGHEST WIND GUST WAS
60 MPH OCCURRING ON THE 22ND FROM THE SOUTHWEST. THERE WAS ALSO A
GUST TO 59 MPH FROM THE SOUTHWEST ON THE 11TH.
..THE BUFFALO WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 84 04/28/2018
LOW 2 04/02/2020
HIGHEST 79 04/21
LOWEST 21 04/18
AVG. MAXIMUM 54.2 53.4 0.8
AVG. MINIMUM 30.6 32.3 -1.7
MEAN 42.4 42.9 -0.5
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 21
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.38 1999
MINIMUM 0.21 2007
TOTALS 0.34 1.46 -1.12 0.91
DAILY AVG. 0.01 0.05 -0.04
DAYS >= .01 5
DAYS >= .10 1
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.11 04/23 TO 04/24
STORM TOTAL 0.10
DEGREE DAYS
HEATING TOTAL 672 665 7
SINCE 7/1 5418 6725 -1307
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 10.7
RESULTANT WIND SPEED/DIRECTION 3/320
HIGHEST WIND SPEED/DIRECTION 45/230 DATE 04/22
HIGHEST GUST SPEED/DIRECTION 60/230 DATE 04/22
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.35
NUMBER OF DAYS FAIR 17
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 5
AVERAGE RH (PERCENT) 57
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 3 SNOW 5
LIGHT SNOW 10 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 3
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO MAY 2026. THE AVERAGE HIGH TEMPERATURE ON THE FIRST
OF THE MONTH IS 58 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 36
DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 68
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 46 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 2.73 INCHES.
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