011  
CXUS55 KRIW 291800  
CLABPI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1034 AM MST THU JAN 29 2026  
   
..PRELIMINARY ANNUAL CLIMATE SUMMARY FOR BIG PINEY FOR 2025
 
 
...2ND WARMEST YEAR AT 40.2F. (3.7 DEGREES ABOVE NORMAL) (1998  
WARMEST AT 41.1F)  
...10TH WARMEST SUMMER AT 60.9 DEGREES (TIED 2015).  
...7TH WETTEST YEAR WITH 8.58 INCHES. (112% OF NORMAL)  
 
...HOT/COLD MONTHS: 7TH COLDEST JANUARY, 3RD WARMEST FEBRUARY, 9TH  
WARMEST MARCH, 8TH WARMEST MAY AND JUNE, 3RD WARMEST SEPTEMBER, 6TH  
WARMEST OCTOBER, 1ST WARMER NOVEMBER, AND 1ST WARMEST DECEMBER.  
 
...WET/DRY MONTHS: 7TH DRIEST JANUARY, 7TH WETTEST FEBRUARY, 2ND  
WETTEST MARCH, 5TH WETTEST APRIL, 9TH DRIEST MAY, 4TH WETTEST JULY,  
8TH WETTEST AUGUST, 3RD WETTEST OCTOBER, 1ST WETTEST NOVEMBER, 1ST  
WETTEST DECEMBER.  
 
...DAILY HIGH TEMPS: FEB 4TH 50, FEB 24TH 46F, FEB 28TH 53F, APR  
11TH 74F, APR 15TH 66F (T), MAY 10TH 76F (T), JUN 1ST 83F, JUN 19TH  
88F, AUG 20TH 92F, NOV 2ND 63F, DEC 13TH 45F, DEC 14TH 47F, DEC 15TH  
47F, AND DEC 16TH 49F.  
 
...DAILY LOW TEMPS: JAN 19TH -18F, JAN 20TH -16F, AND MAY 15TH 24F  
(T),  
 
...DAILY PRECIP: FEB 5TH 0.02” (T), MAR 3RD 0.04”, MAR 6TH 0.79”,  
MAR 7TH, 0.02” (T), MAR 13TH 0.08”, APR 17TH 0.50”, MAY 18TH 0.35”,  
JUL 3RD 0.16”, JUL 4TH 0.45”. AUG 27TH 0.97”, OCT 14TH 0.13”, OCT  
26TH 0.09”; NOV 16TH 0.28”, NOV 17TH 0.26”, DEC 17TH 0.19”, AND DEC  
26TH 0.04”.  
 
...PEAK WIND: JULY 15TH 300/62 MPH. DECEMBER 17TH 280/63 MPH.  
 
   
..THE BIG PINEY WY CLIMATE SUMMARY FOR THE YEAR OF 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1976 TO 2026  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 99 08/06/2003  
LOW -50 12/23/1983  
HIGHEST 92 MM  
LOWEST -27 MM  
AVG. MAXIMUM 56.3 3.2  
AVG. MINIMUM 24.2 4.4  
MEAN 40.3  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 9.53 2023  
MINIMUM 2.21 2020  
TOTALS 8.58 7.66 0.92  
 
DEGREE DAYS  
HEATING TOTAL 8873  
COOLING TOTAL 41    
..........................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED/DIRECTION 47/290 DATE 12/17  
HIGHEST GUST SPEED/DIRECTION 63/280 DATE 12/17  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 31 MIXED PRECIP 0  
HEAVY RAIN 6 RAIN 15  
LIGHT RAIN 87 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 7 SNOW 12  
LIGHT SNOW 58 SLEET 0  
FOG 83 FOG W/VIS <= 1/4 MILE 15  
HAZE 25  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
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