845  
CDUS45 KRIW 240045  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT FRI OCT 23 2009  
 
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR OCTOBER 23 2009  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1891 TO 2009  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 54 MM 76 2003 56 -2 56  
MINIMUM 30 MM 8 1916 30 0 24  
1906  
AVERAGE 42 43 -1 40  
 
PRECIPITATION (IN)  
TODAY 0.00 2.01 1923 0.04 -0.04 0.00  
MONTH TO DATE 2.31 1.05 1.26 2.21  
SINCE SEP 1 3.02 2.19 0.83 3.01  
SINCE JAN 1 15.30 11.50 3.80 13.39  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 0.0  
MONTH TO DATE 22.1 5.5 16.6 30.2  
SINCE SEP 1 22.6 8.5 14.1 30.2  
SINCE JUL 1 22.6 8.5 14.1 30.2  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 23 22 1 25  
MONTH TO DATE 634 385 249 481  
SINCE SEP 1 757 605 152 716  
SINCE JUL 1 821 645 176 736  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 59 29 30 2  
SINCE JAN 1 344 445 -101 515    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 2.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 600 AM  
LOWEST 35 300 PM  
AVERAGE 60  
   
......................................................  
 
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 74 1965  
1937  
MINIMUM TEMPERATURE (F) 30 3 1916  
 
 
SUNRISE AND SUNSET  
OCTOBER 23 2009.......SUNRISE 738 AM MDT SUNSET 620 PM MDT  
OCTOBER 24 2009.......SUNRISE 739 AM MDT SUNSET 618 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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