063  
CXAK58 PASN 011355  
CLMSNP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ANCHORAGE, AK  
555 AM AKDT MON OCT 1 2018  
   
...............................
 
 
 
...THE SAINT PAUL ISLAND CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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 61 MM  
LOW 29 09/26/2018  
09/14/2017  
03/12/1971  
HIGHEST 56 MM MM 55  
LOWEST 29R MM MM 29  
AVG. MAXIMUM 52.3 49.6 2.7 50.0  
AVG. MINIMUM 44.2 41.1 3.1 41.7  
MEAN 48.2 45.3 2.9 45.8  
DAYS MAX >= 90 0 0.0 0.0 0  
DAYS MAX <= 32 0 0.0 0.0 0  
DAYS MIN <= 32 1 2.0 -1.0 2  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM MM MM  
MINIMUM MM MM  
TOTALS 2.99 2.99 0.00 1.71  
DAILY AVG. 0.10 0.10 0.00 0.06  
DAYS >= .01 15 19.6 -4.6 18  
DAYS >= .10 9 8.2 0.8 5  
DAYS >= .50 1 1.4 -0.4 0  
DAYS >= 1.00 0 0.3 -0.3 0  
GREATEST  
24 HR. TOTAL 0.54 09/20 TO 09/20 09/15 TO 09/15  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
STORM TOTAL MM MM  
(MM/DD(HH)) MM 09/15(00) TO 09/15(00)  
09/30(00) TO 09/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
09/30(00) TO 09/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL MM MM  
24 HR TOTAL MM  
SNOW DEPTH MM MM  
TOTALS 0.0 T 0.0 0.0  
SINCE 7/1 0.0 T 0.0 0.0  
SNOWDEPTH AVG. 0 MM MM 0  
DAYS >= TRACE 0 0.1 -0.1 0  
DAYS >= 1.0 0 0.0 0.0  
GREATEST  
SNOW DEPTH 0 MM 0 MM  
24 HR TOTAL 0.0 09/30 TO 09/30 09/30 TO 09/30  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
STORM TOTAL MM MM  
(MM/DD(HH)) MM  
 
DEGREE_DAYS  
HEATING TOTAL 495 590 -95 568  
SINCE 7/1 1453 1643 -190 1559  
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 11.7  
RESULTANT WIND SPEED/DIRECTION 2/214  
HIGHEST WIND SPEED/DIRECTION 37/250 DATE 09/21  
HIGHEST GUST SPEED/DIRECTION 49/240 DATE 09/22  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.90  
NUMBER OF DAYS FAIR 1  
NUMBER OF DAYS PC 5  
NUMBER OF DAYS CLOUDY 24  
 
AVERAGE RH (PERCENT) 93  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
0  
8  
0  
0  
0  
0  
10  
HAZE 1  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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