626  
CXUS55 KRIW 011531  
CLMLND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
919 AM MDT WED JUL 01 2026  
 
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LANDER FOR THE MONTH OF  
JUNE 2026...  
 
...OFFICIAL CLIMATE DATA FOR THE MONTH OF JUNE 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  
   
..LANDER WAS WARMER AND DRIER THAN NORMAL IN JUNE.
 
 
THE AVERAGE TEMPERATURE FOR LANDER IN JUNE WAS 63.7 DEGREES WHICH  
WAS 0.9 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS  
93 DEGREES ON THE 6TH. THIS BROKE THE 2006 RECORD OF 92. THE COLDEST  
TEMPERATURE WAS 37 DEGREES ON THE 11TH.  
 
PRECIPITATION FOR THE MONTH WAS 0.46 INCHES...WHICH IS 43 PERCENT OF  
NORMAL. THE WETTEST 24-HOUR PERIOD WAS THE 24TH-25TH...WITH 0.46  
INCHES OF PRECIPITATION. NO PRECIPITATION RECORDS WERE BROKEN THIS  
MONTH. THE HIGHEST WIND GUST WAS 69 MPH AND OCCURRED ON THE 9TH FROM  
THE SOUTHWEST. THERE WAS ALSO A GUST TO 65 MPH FROM THE SOUTHWEST ON  
THE 20TH.  
   
..THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2026  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 100 06/23/1954  
LOW 25 06/03/1951  
HIGHEST 93 06/06  
LOWEST 37 06/11  
AVG. MAXIMUM 79.1 78.0 1.1  
AVG. MINIMUM 48.3 47.7 0.6  
MEAN 63.7 62.8 0.9  
DAYS MAX >= 90 3  
DAYS MAX <= 32 0  
DAYS MIN <= 32 0  
DAYS MIN <= 0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 6.88 1947  
MINIMUM 0.00 1971  
TOTALS 0.46 1.08 -0.62 0.70  
DAILY AVG. 0.02 0.04 -0.02  
DAYS >= .01 2  
DAYS >= .10 2  
DAYS >= .50 0  
DAYS >= 1.00 0  
GREATEST  
24 HR. TOTAL 0.46 06/24 TO 06/25  
STORM TOTAL 0.35  
 
SNOWFALL (INCHES)  
TOTALS 0.0 0.1 -0.1  
SINCE 7/1 38.1 87.6 -49.5  
SNOWDEPTH AVG. 0  
DAYS >= 1.0 0  
 
DEGREE DAYS  
HEATING TOTAL 75 124 -49  
SINCE 7/1 5589 7712 -2123  
COOLING TOTAL 46 59 -13  
SINCE 1/1 60 64 -4    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 8.1  
RESULTANT WIND SPEED/DIRECTION 3/270  
HIGHEST WIND SPEED/DIRECTION 49/230 DATE 06/09  
HIGHEST GUST SPEED/DIRECTION 69/230 DATE 06/09  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.12  
NUMBER OF DAYS FAIR 27  
NUMBER OF DAYS PC 3  
NUMBER OF DAYS CLOUDY 0  
 
AVERAGE RH (PERCENT) 39  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 5 MIXED PRECIP 0  
HEAVY RAIN 0 RAIN 2  
LIGHT RAIN 6 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 2 FOG W/VIS <= 1/4 MILE 0  
HAZE 1  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
LOOKING AHEAD TO JULY 2026. THE AVERAGE HIGH TEMPERATURE ON THE  
FIRST OF THE MONTH IS 84 DEGREES...AND THE AVERAGE LOW TEMPERATURE  
IS 52 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 89  
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 57. THE AVERAGE MONTHLY  
PRECIPITATION IS 0.59 INCHES.  
 

 
 
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