487  
CXUS55 KRIW 031758 CCA  
CLMRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1045 AM MST MON NOV 03 2025  
 
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR ROCK SPRINGS 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  
   
..ROCK SPRINGS WAS WARMER AND DRIER THAN NORMAL IN OCTOBER
 
 
THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN OCTOBER WAS 46.3 DEGREES  
WHICH WAS 1.8 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE  
MONTH WAS 77 DEGREES ON THE 3RD. THE COLDEST TEMPERATURE WAS 19  
DEGREES ON THE 28TH. NO TEMPERATURE RECORDS WERE BROKEN THIS MONTH.  
 
PRECIPITATION FOR THE MONTH WAS 0.75 INCHES...WHICH WAS 93 PERCENT  
OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS ON THE 16TH WITH 0.27  
INCHES. NO PRECIPITATION RECORDS WERE BROKEN THIS MONTH. THE HIGHEST  
WIND GUST WAS 58 MPH FROM THE SOUTH ON THE 4TH.  
 
...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER  
2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1948 TO 2025  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 82 10/04/2024  
LOW -10 10/26/2020  
HIGHEST 77 10/03  
LOWEST 19 10/28  
AVG. MAXIMUM 58.0 56.0 2.0  
AVG. MINIMUM 34.6 32.9 1.7  
MEAN 46.3 44.5 1.8  
DAYS MAX >= 90 0  
DAYS MAX <= 32 0  
DAYS MIN <= 32 13  
DAYS MIN <= 0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 2.81 1949  
MINIMUM 0.00 1952  
TOTALS 0.75 0.81 -0.06 0.71  
DAILY AVG. 0.02 0.03 -0.01  
DAYS >= .01 8  
DAYS >= .10 4  
DAYS >= .50 0  
DAYS >= 1.00 0  
GREATEST  
24 HR. TOTAL 0.27 10/16 TO 10/16  
STORM TOTAL 0.27  
 
SNOWFALL (INCHES)  
TOTALS MM 6.6 MM  
SINCE 7/1 MM 7.8 MM  
SNOWDEPTH AVG. MM  
DAYS >= 1.0 MM  
 
DEGREE DAYS  
HEATING TOTAL 571 637 -66  
SINCE 7/1 752 939 -187  
COOLING TOTAL 1 0 1  
SINCE 1/1 442 320 122    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 11.0  
RESULTANT WIND SPEED/DIRECTION 7/230  
HIGHEST WIND SPEED/DIRECTION 44/180 DATE 10/04  
HIGHEST GUST SPEED/DIRECTION 58/180 DATE 10/04  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.25  
NUMBER OF DAYS FAIR 22  
NUMBER OF DAYS PC 7  
NUMBER OF DAYS CLOUDY 2  
 
AVERAGE RH (PERCENT) 57  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 2 MIXED PRECIP 0  
HEAVY RAIN 1 RAIN 4  
LIGHT RAIN 8 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 2  
LIGHT SNOW 3 SLEET 0  
FOG 7 FOG W/VIS <= 1/4 MILE 2  
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 48 DEGREES...AND THE AVERAGE LOW TEMPERATURE  
IS 27 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 33DEGREES  
AND THE AVERAGE LOW TEMPERATURE IS 16. THE AVERAGE MONTHLY  
PRECIPITATION IS 0.40 INCHES.  
 

 
 
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