651  
CXAK58 PASN 011354  
CLMSNP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ANCHORAGE, AK  
554 AM AKDT FRI JUN 1 2018  
   
...............................
 
 
   
..THE SAINT PAUL ISLAND CLIMATE SUMMARY FOR THE MONTH OF MAY 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1892 TO 2018  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 59 MM  
LOW 21 05/06/2018  
HIGHEST 47 MM MM 48  
LOWEST 21R MM MM 28  
AVG. MAXIMUM 42.9 40.4 2.5 43.0  
AVG. MINIMUM 34.4 31.9 2.5 34.6  
MEAN 38.6 36.2 2.4 38.8  
DAYS MAX >= 90 0 0.0 0.0 0  
DAYS MAX <= 32 0 0.9 -0.9 0  
DAYS MIN <= 32 6 14.9 -8.9 6  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM MM MM  
MINIMUM MM MM  
TOTALS 1.40 1.13 0.27 1.55  
DAILY AVG. 0.05 0.04 0.01 0.05  
DAYS >= .01 23 12.9 10.1 16  
DAYS >= .10 5 3.7 1.3 5  
DAYS >= .50 0 0.2 -0.2 0  
DAYS >= 1.00 0 0.0 0.0 0  
GREATEST  
24 HR. TOTAL 0.25 05/28 TO 05/28 05/15 TO 05/15  
05/10 TO 05/10  
05/10 TO 05/10  
STORM TOTAL MM MM  
(MM/DD(HH)) MM 05/15(00) TO 05/15(00)  
05/10(00) TO 05/10(00)0  
05/10(00) TO 05/10(00)0  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL MM MM  
24 HR TOTAL MM  
SNOW DEPTH MM MM  
TOTALS 0.9 1.1 -0.2 T  
SINCE 7/1 15.5 59.8 -44.3 48.8  
SNOWDEPTH AVG. 0 MM MM 0  
DAYS >= TRACE 6 2.7 3.3 4  
DAYS >= 1.0 0 0.2 -0.2  
GREATEST  
SNOW DEPTH 0 MM 0 MM  
24 HR TOTAL 0.9 05/06 TO 05/06 05/10 TO 05/10  
05/10 TO 05/10  
05/10 TO 05/10  
STORM TOTAL MM MM  
(MM/DD(HH)) MM  
 
DEGREE_DAYS  
HEATING TOTAL 808 894 -86 806  
SINCE 7/1 8667 10129 -1462 8868  
COOLING TOTAL 0 0 0 0  
SINCE 1/1 0 0 0 0  
 
FREEZE DATES  
RECORD  
EARLIEST MM  
LATEST MM  
EARLIEST MM  
LATEST MM    
.............................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 15.3  
RESULTANT WIND SPEED/DIRECTION 4/004  
HIGHEST WIND SPEED/DIRECTION 39/350 DATE 05/04  
HIGHEST GUST SPEED/DIRECTION 49/120 DATE 05/06  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.90  
NUMBER OF DAYS FAIR 0  
NUMBER OF DAYS PC 3  
NUMBER OF DAYS CLOUDY 28  
 
AVERAGE RH (PERCENT) 88  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 0 RAIN 2  
LIGHT RAIN 26 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 1  
LIGHT SNOW 12 SLEET 0  
FOG 27 FOG W/VIS <= 1/4 MILE 1  
HAZE 3  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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