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CXUS56 KEKA 042308
CLMEKA
SFOCLMEKA 000
TTAA00 EKA 041314
CLIMATE REPORT
NATIONAL WEATHER SERVICE EUREKA CA
612 AM PDT SAT NOV 04 2023
...............................
..THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2023
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1886 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 87 10/26/1993
LOW 32 10/29/1971
HIGHEST 78 10/05 MM MM 68
LOWEST 36 10/28 MM MM 40
AVG. MAXIMUM 62.7 61.9 0.8 59.7
AVG. MINIMUM 47.7 46.8 0.9 48.0
MEAN 55.2 54.3 0.9 53.9
DAYS MAX >= 90 0
DAYS MIN <= 32 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 13.04 1950
MINIMUM 0.00 1917
TOTALS 2.09 2.31 -0.22
DAYS >= .01 8 8.7 -0.7 7
DAYS >= .10 6 4.7 1.3 0
DAYS >= .50 2 1.7 0.3 0
DAYS >= 1.00 0 0.5 -0.5 0
GREATEST
24 HR. TOTAL 0.62 10/16 TO 10/16
LIQUID 7/1 MM MM
DEGREE DAYS
HEATING TOTAL 298 331 -33 335
SINCE 7/1 799 991 -192 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 0 1 -1 MM
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 2.9
HIGHEST WIND SPEED/DIRECTION 15/350 DATE 10/01
HIGHEST GUST SPEED/DIRECTION 26/MM DATE 10/01
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.59
NUMBER OF DAYS FAIR 10
NUMBER OF DAYS PC 7
NUMBER OF DAYS CLOUDY 14
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 HEAVY RAIN 0
RAIN 3 LIGHT RAIN 8
HAIL 0 SLEET 0
FOG 8 FOG W/VIS <= 1/4 MILE 12
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
OCTOBER WAS FAIRLY TYPICAL MONTH FOR THE NORTH COAST, THAT IS TO SAY
IT WAS CONSISTENTLY INCONSISTENT. A SERIES OF COLD FRONTS SWEEPING
ACROSS THE AREA BROUGHT PERIODS OF LOW CLOUDS AND LIGHT RAIN,
FOLLOWED BY CONSISTENT OFFSHORE FLOW. OFFSHORE FLOW ACCOMPANIED VERY
CLEAR WEATHER ALONG THE COAST ALLOWING FOR BOTH WARM DAYS AND COOL
NIGHTS. OFFSHORE FLOW HELPED GENERATE BOTH THE WARMEST DAY OF THE
MONTH AT 78 AND COOLEST NIGHT AT 36. THAT NIGHT SAW WIDESPREAD FROST
EVEN NEAR SEA LEVEL. UNUSUALLY STRONG HIGH PRESSURE IN THE MIDDLE OF
THE MONTH BROKE UP THE SERIES OF FRONT, GENERATING A SHALLOW BUT
RESILIENT MARINE LAYER ALONG THE COAST. THIS PERIOD SAW NEARLY A
WEEK OF DENSE FOG EVEN DURING THE DAY. THIS PERIOD OF HIGH PRESSURE
ALSO LIKELY HELPED KEEP THE MONTHLY TOTAL RAINFALL SLIGHTLY BELOW
AVERAGE DESPITE REGULAR FRONTAL PASSAGES.
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