Climatological Report (Monthly)
Issued by NWS Eureka, CA

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422
CXUS56 KEKA 072302
CLMEKA

CLIMATE REPORT
NATIONAL WEATHER SERVICE EUREKA CA
1149 AM PDT THU NOV 2 2017

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

...THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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              87   10/26/1993
 LOW               32   10/29/1971
HIGHEST            76   10/24                MM
LOWEST             37   10/12                MM
AVG. MAXIMUM     62.0                       0.3
AVG. MINIMUM     44.1                      -3.0
MEAN             53.0                      -1.4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        13.04   1950
 MINIMUM         0.00   1917
TOTALS           1.64              2.24   -0.60
DAYS >= .01         6               8.5    -2.5       20
DAYS >= .10         2               4.6    -2.6       13
DAYS >= .50         1               1.6    -0.6        7
DAYS >= 1.00        1               0.4     0.6        5
GREATEST
 24 HR. TOTAL    1.59   10/19 TO 10/20

SNOWFALL (INCHES)
 LIQUID 7/1      0.00                      0.00

DEGREE_DAYS
HEATING TOTAL     361               329      32      235
 SINCE 7/1        899               994     -95      919
COOLING TOTAL       0                 0       0        0
 SINCE 1/1         13                 0      13        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.0
HIGHEST WIND SPEED/DIRECTION    21/010    DATE  10/08
HIGHEST GUST SPEED/DIRECTION    35/010    DATE  10/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          9


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 0
RAIN                      2     LIGHT RAIN                 8
HAIL                      0     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      7
HAZE                      6

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

&&

TOTAL RAINFALL...............  1.64 DEPARTURE FROM NORMAL.....- 0.60
TOTAL SINCE JANUARY 1ST...... 39.71 DEPARTURE FROM NORMAL.....+13.11
TOTAL SINCE OCT 1ST..........  1.64 DEPARTURE FROM NORMAL.....- 0.60

HIGHEST SLP......... 30.40 ON 22 LOWEST SLP........29.75 ON 19

...REMARKS...HIGH PRESSURE WAS IN PLACE FOR MUCH OF THE MONTH ACROSS
THE REGION. THIS BROUGHT SOME SUNNY DAYS THAT WERE QUITE WARM,
ALTHOUGH THERE WERE ALSO QUITE A FEW DAYS WITH COASTAL STRATUS
REMAINING IN PLACE THROUGH THE DAY AND TEMPERATURES REMAINED QUITE
COOL. THE HIGH PRESSURE KEPT MOST OF THE RAIN TO THE NORTH OF THE
AREA AND RAINFALL WAS BELOW NORMAL. THE MAINLY DRY CONDITIONS
RESULTED IN NEAR NORMAL HIGH TEMPERATURES AND BELOW NORMAL LOW
TEMPERATURES. TWO TEMPERATURE RECORDS WERE SET THIS MONTH ON CLEAR
DAYS. A RECORD LOW OF 38 WAS SET ON THE 9TH WHICH BREAKS THE OLD
RECORD OF 39 SET IN 1985. ALSO...ON THE 24TH A RECORD HIGH
TEMPERATURE OF 76 WAS SET WHICH BEATS THE OLD RECORD OF 74 SET IN
1986.

$$



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