948
CXUS55 KRIW 031757 CCA
CLMRIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1045 AM MST MON NOV 03 2025

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
OCTOBER 2025...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF OCTOBER 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 WARMER AND WETTER THAN NORMAL IN OCTOBER....

THE AVERAGE TEMPERATURE FOR RIVERTON IN OCTOBER WAS 46.8 DEGREES
WHICH WAS 2.1 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE
MONTH WAS 82 DEGREES ON THE 3RD. AND TIED THE 2010 RECORD. THE
COLDEST READING WAS 180 DEGREES ON THE 29TH.

PRECIPITATION FOR THE MONTH WAS 1.43 INCHES...WHICH IS 172 PERCENT
OF NORMAL. IT WAS THE 7TH WETTEST OCTOBER SINCE RECORDS BEGAN IN
1998. THE WETTEST 24-HOURS WAS THE 4TH-5TH WHEN 0.78 INCHES FELL.
THE 5TH HAD 0.69 INCHES AND BROKE THE 2018 RECORD OF 0.11 INCHES.

SNOWFALL FOR THE MONTH WAS JUST A TRACE. BOTH THE 5TH AND 6TH
RECEIVED A TRACE OF SNOW. THE HIGHEST WIND GUST WAS 56 MPH FROM THE
NORTHWEST AND OCCURRED ON THE 19TH.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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             83   10/02/2024
 LOW              -9   10/30/2019
HIGHEST           82   10/03
LOWEST            18   10/29
AVG. MAXIMUM    59.7               58.0     1.7
AVG. MINIMUM    33.9               31.5     2.4
MEAN            46.8               44.7     2.1
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32    13
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.83   1998
 MINIMUM        0.03   2001
TOTALS          1.43               0.83    0.60     0.57
DAILY AVG.      0.05               0.03    0.02
DAYS >= .01        5
DAYS >= .10        3
DAYS >= .50        1
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.78   10/04 TO 10/05
 STORM TOTAL    0.69

SNOWFALL (INCHES)
TOTALS             T                 MM      MM
SINCE 7/1          T                 MM      MM
SNOWDEPTH AVG.     0
DAYS >= 1.0        0

DEGREE DAYS
HEATING TOTAL    558                628     -70
 SINCE 7/1       658                871    -213
COOLING TOTAL      0                  0       0
 SINCE 1/1       611                499     112
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
RESULTANT WIND SPEED/DIRECTION   3/300
HIGHEST WIND SPEED/DIRECTION    40/290    DATE  10/20
HIGHEST GUST SPEED/DIRECTION    56/300    DATE  10/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.16
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     57

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     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 NOVEMBER 2025. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 50 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 25 DEGREES. THE AVERAGE HIGH AT THE END OF THE MONTH IS 35
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 13. THE AVERAGE MONTHLY
PRECIPITATION IS 0.34 INCHES.

$$