147  
CXUS56 KEKA 060359  
CLMEKA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE EUREKA CA  
1211 PM PST SUN DEC 3 2017  
   
...............................
 
 
   
..THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1886 TO 2017  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
.........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 81 11/11/1904  
LOW 27 11/27/1896  
HIGHEST 75 11/21 MM  
LOWEST 34 11/19 MM  
11/18  
AVG. MAXIMUM 59.9 1.9  
AVG. MINIMUM 45.7 2.2  
MEAN 52.8 2.0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 16.58 1973  
MINIMUM 0.00 1929  
TOTALS 7.40 5.61 1.79  
DAYS >= .01 19 15.2 3.8 20  
DAYS >= .10 12 9.9 2.1 14  
DAYS >= .50 8 4.1 3.9 5  
DAYS >= 1.00 2 1.5 0.5 1  
GREATEST  
24 HR. TOTAL 1.32 11/02 TO 11/03  
 
SNOWFALL (INCHES)  
LIQUID 7/1 0.00 0.00  
 
DEGREE_DAYS  
HEATING TOTAL 361 428 -67 315  
SINCE 7/1 1260 1422 -162 1234  
COOLING TOTAL 2 0 2 0  
SINCE 1/1 15 0 15 0    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 4.7  
HIGHEST WIND SPEED/DIRECTION 20/180 DATE 11/08  
HIGHEST GUST SPEED/DIRECTION 38/270 DATE 11/15  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.80  
NUMBER OF DAYS FAIR 5  
NUMBER OF DAYS PC 1  
NUMBER OF DAYS CLOUDY 24  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 HEAVY RAIN 1  
RAIN 7 LIGHT RAIN 22  
HAIL 0 SLEET 0  
FOG 13 FOG W/VIS <= 1/4 MILE 2  
HAZE 2  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  

 
 
TOTAL RAINFALL............... 7.40 DEPARTURE FROM NORMAL.....+ 1.74  
TOTAL SINCE JANUARY 1ST...... 47.11 DEPARTURE FROM NORMAL.....+14.90  
TOTAL SINCE OCT 1ST.......... 9.04 DEPARTURE FROM NORMAL.....+ 1.19  
 
HIGHEST SLP......... 30.28 ON 29 LOWEST SLP........29.58 ON 15  
   
..REMARKS
 
A SERIES OF WEATHER SYSTEMS MOVING THROUGH THE AREA  
BROUGHT ABOVE NORMAL RAINFALL AND TEMPERATURES TO EUREKA. DURING THE  
BREAKS BETWEEN THESE WEATHER SYSTEMS, SKIES CLEARED OUT AND THERE  
WERE SOME COOL TEMPERATURES. A LOW TEMPERATURE OF 36 DEGREES WAS  
RECORDED ON THE 5TH WHICH TIED THE RECORD LOW LAST SET IN 1935.  
OFFSHORE FLOW BEHIND A COUPLE OF THE SYSTEMS BROUGHT HIGH  
TEMPERATURES IN THE 70S AND TWO RECORDS WERE SET. ON THE 21ST A HIGH  
TEMPERATURE OF 75 WAS RECORDED BREAKING THE OLD RECORD OF 69 SET IN  
1930. JUST FOUR DAYS LATER ON THE 25TH THE HIGH TEMPERATURE REACHED  
74 BREAKING THE OLD RECORD OF 70 SET IN 1977.  
 

 
 
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