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CXUS56 KEKA 062338
CLMEKA

SFOCLMEKA 000
TTAA00 EKA 052331

CLIMATE REPORT
NATIONAL WEATHER SERVICE EUREKA CA
331 PM PST WED FEB 05 2025

...................................

...THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1886 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             78   01/12/1986
 LOW              20   01/14/1888
HIGHEST           61   01/05         MM      MM       71
LOWEST            29   01/26         MM      MM       32
AVG. MAXIMUM    54.6               55.1    -0.5     58.1
AVG. MINIMUM    38.6               40.8    -2.2     45.7
MEAN            46.6               47.9    -1.3     51.9
DAYS MAX >= 90     0
DAYS MIN <= 32     6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       18.26   1890
 MINIMUM        0.66   1985
TOTALS          3.82               6.67   -2.85
DAYS >= .01        7               16.5    -9.5       23
DAYS >= .10        6               11.6    -5.6       16
DAYS >= .50        3                4.8    -1.8        8
DAYS >= 1.00       1                1.8    -0.8        3
GREATEST
 24 HR. TOTAL   1.71   01/03 TO 01/03

 LIQUID 7/1       MM                         MM

DEGREE DAYS
HEATING TOTAL    562                529      33      402
 SINCE 7/1      2349               2507    -158       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              3.6
HIGHEST WIND SPEED/DIRECTION    18/180    DATE  01/31
HIGHEST GUST SPEED/DIRECTION    33/MM     DATE  01/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.47
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY         11


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     HEAVY RAIN                 0
RAIN                      3     LIGHT RAIN                 9
HAIL                      0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      4
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

A NEW YEAR STORM KICKED OFF THE BEGINNING OF JANUARY, BRINGING GUSTY
SOUTHERLY WINDS AND WARMER THAN AVERAGE TEMPERATURES. ABOVE NORMAL
DAILY PRECIPITATION FELL ON THE FIRST THREE DAYS OF THE MONTH WITH
THE FOURTH AND FIFTH DAYS OF THE MONTH HAVING SLIGHTLY BELOW AVERAGE
RAINFALL. THE SIXTH DAY HAD ABOUT HALF THE AMOUNT OF DAILY RAINFALL
FOR THAT DAY. THE REST OF JANUARY SAW A SERIES OF HIGH PRESSURE
SYSTEMS THAT BROUGHT ABOUT MORE SUMMER-LIKE WEATHER CONDITIONS WITH
SUNNY DAYS AND FOGGY NIGHTS AT THE COAST AND INTERIOR RIVER VALLEYS,
AND GENERAL DRY SUNNY WEATHER TO THE REST OF THE INTERIOR REGIONS.
THE SECOND WEEK OF JANUARY, ESPECIALLY, SAW DENSE FOGGY NIGHTS AT
THE COAST AND DOWN RIVER VALLEYS WITH OVERHEAD INVERSIONS MOST
NIGHTS. THE MIDDLE OF THE MONTH HAD MANY NIGHTS OF OFFSHORE FLOW
KEEPING MOST OF NORTHWEST CALIFORNIA DRY WITH MOSTLY CLEAR SKIES.
ALSO, DUE TO THE CLEAR NIGHTS, DIURNAL TEMPERATURES VARIED GREATLY
IN THE MIDDLE TO END OF THE MONTH. THE 26TH DAY SAW A LOW
TEMPERATURE OF 29, BEATING THE LOWEST TEMPERATURE FOR THAT DAY SINCE
A LOW OF 30 WAS RECORDED IN 1957. THE LAST DAY OF THE MONTH SAW
ABOVE AVERAGE RAINFALL AS THE DRY SPELL WAS BROKEN. /JLW

$$