616
CXUS55 KRIW 011720
CLMWRL
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1105 AM MDT THU OCT 01 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR WORLAND MUNICIPAL AIRPORT
FOR THE MONTH OF SEPTEMBER 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2026 WILL BE
AVAILABLE APPROXIMATELY IN 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
..WORLAND WAS WETTER AND WARMER THAN NORMAL IN SEPTEMBER
AVERAGE TEMPERATURE FOR WORLAND IN SEPTEMBER WAS 63.5 DEGREES WHICH
IS 4.2 DEGREES ABOVE NORMAL. THE WARMEST READING OF THE MONTH WAS 93
DEGREES ON THE 4TH. THE COLDEST READING WAS 39 DEGREES ON THE 8TH
AND 15TH. NO TEMPERATURE RECORDS WERE BROKEN THIS MONTH.
TOTAL PRECIPITATION FOR THE MONTH WAS 1.02 INCHES...WHICH IS 110
PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD DURING THE MONTH WAS
ON THE 20TH WHEN 0.74 INCHES FELL. THIS BROKE THE 1995 RECORD OF
0.47 INCHES. THE HIGHEST WIND GUST WAS 49 MPH FROM THE SOUTHEAST ON
THE 6TH AND FROM THE SOUTHWEST ON THE 7TH.
..THE WORLAND WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1947 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 102 09/04/2022
LOW 15 09/25/1984
HIGHEST 93 09/04
LOWEST 39 09/08
09/15
AVG. MAXIMUM 80.3 76.2 4.1
AVG. MINIMUM 46.6 42.4 4.2
MEAN 63.5 59.3 4.2
DAYS MAX >= 90 4
DAYS MAX <= 32 0
DAYS MIN <= 32 0
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.63 2013
MINIMUM T 2012
TOTALS 1.02 0.93 0.09 0.45
DAILY AVG. 0.03 0.03 -0.00
DAYS >= .01 3
DAYS >= .10 2
DAYS >= .50 1
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.74 09/20 TO 09/20
STORM TOTAL 0.74
DEGREE DAYS
HEATING TOTAL 87 202 -115
SINCE 7/1 91 240 -149
COOLING TOTAL 47 31 16
SINCE 1/1 784 528 256
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 5.8
RESULTANT WIND SPEED/DIRECTION 0/230
HIGHEST WIND SPEED/DIRECTION 38/220 DATE 09/07
HIGHEST GUST SPEED/DIRECTION 49/160 DATE 09/06
49/230 09/07
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.10
NUMBER OF DAYS FAIR 28
NUMBER OF DAYS PC 1
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 48
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 2
LIGHT RAIN 4 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 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO OCTOBER 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 68 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 37 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 53
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 23 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.77 INCHES.
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