CDUS45 KRIW 190732
CLIP60

CLIMATE REPORT 
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT TUE MAY 19 2026

...................................

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 18 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         39   4:43 PM  69    2007  51    -12       38        
                                      2009                           
  MINIMUM         23  11:59 PM  20    2003  27     -4       32        
                                      2011                           
  AVERAGE         31                        39     -8       35     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.82 2025   0.08  -0.08     0.82     
  MONTH TO DATE    0.09                      1.23  -1.14     1.66     
  SINCE MAR 1      4.01                      5.41  -1.40     4.74     
  SINCE JAN 1      7.36                      8.91  -1.55     8.44     

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       34                        26      8       30        
  MONTH TO DATE  428                       514    -86      446        
  SINCE MAR 1   2500                      2960   -460     1641        
  SINCE JUL 1   9470                     11164  -1694     8561        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE MAR 1      0                         0      0        0        
  SINCE JAN 1      0                         0      0        0        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NW (300)       
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NW (300)       
  AVERAGE WIND SPEED     4.7                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.0                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    68          12:00 AM                                      
 LOWEST     33           5:00 PM                                      
 AVERAGE    51                                                        

..........................................................


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   52        70      2002                      
 MINIMUM TEMPERATURE (F)   28        15      2003                      


SUNRISE AND SUNSET                                                    
MAY 19 2026...........SUNRISE   5:50 AM MDT   SUNSET   8:47 PM MDT     
MAY 20 2026...........SUNRISE   5:49 AM MDT   SUNSET   8:48 PM MDT     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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