Climatological Report (Monthly)
Issued by NWS Eureka, CA

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000
CXUS56 KEKA 040452
CLMEKA

CLIMATE REPORT NATIONAL WEATHER SERVICE EUREKA CA

935 PM PDT WED JUN 3 2015

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

...THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF MAY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1886 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              84   05/13/1939
 LOW               35   05/06/2010
                        05/08/2002
                        05/01/1887
HIGHEST            61   05/23                MM
                        05/22
                        05/21
LOWEST             42   05/08                MM
                        05/07
AVG. MAXIMUM     58.0                      -2.1
AVG. MINIMUM     48.7                       1.2
MEAN             53.4                      -0.4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.20   1889
 MINIMUM         0.03   1955
TOTALS           0.07              1.78   -1.71
DAYS >= .01         2               9.1    -7.1        6
DAYS >= .10         0               4.6    -4.6        2
DAYS >= .50         0               1.1    -1.1        0
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.06   05/31 TO 05/31

SNOWFALL (INCHES)
 LIQUID 7/1        MM                        MM

DEGREE_DAYS
HEATING TOTAL     353               347       6      256
 SINCE 7/1       3328              4168    -840     4136
COOLING TOTAL       0                 0       0        1
 SINCE 1/1          0                 0       0        1
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.0
HIGHEST WIND SPEED/DIRECTION    21/MM     DATE   MM
HIGHEST GUST SPEED/DIRECTION    36/020    DATE  05/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY         24


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 0
RAIN                      0     LIGHT RAIN                14
HAIL                      0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

&&

TOTAL RAINFALL...............  0.07 DEPARTURE FROM NORMAL..... -1.71
TOTAL SINCE JANUARY 1ST...... 12.25 DEPARTURE FROM NORMAL.....-10.28
TOTAL SINCE OCT 1ST.......... 30.63 DEPARTURE FROM NORMAL..... -7.87

HIGHEST SLP......... 30.15 ON 23RD  LOWEST SLP........ 29.82 ON 14TH


...REMARKS...EARLY IN THE MONTH PERIODS OF HIGH PRESSURE OVER THE
AREA WERE INTERSPERSED WITH WEAK WEATHER SYSTEMS. THESE WEATHER
SYSTEMS WERE MAINLY DRY AT THE COAST...BUT THEY CAUSED BIG
FLUCTUATIONS IN SKY COVER AND...TO A LESSER EXTENT...TEMPERATURES.
THE MONTH WAS MAINLY DRY...WITH ONLY 0.07 INCHES OF RAIN COMING IN
THE LAST FEW DAYS OF THE MONTH. THIS IS 1.71 INCHES BELOW NORMAL.
LATE IN THE MONTH A WEAK UPPER LEVEL TROUGH SET UP OVER THE WEST
COAST. THIS KEPT WINDS WEAK ENOUGH THAT SKIES REMAINED MAINLY CLOUDY
FROM THE 13TH ONWARD. ALL THESE CLOUDY SKIES KEPT HIGH TEMPERATURES
NEAR TO SLIGHTLY BELOW NORMAL FOR THE MONTH AND THE MONTH ENDED WITH
THE HIGH TEMPERATURES 2 DEGREES BELOW AVERAGE. THE LOW TEMPERATURES
WERE JUST OVER 1 DEGREE ABOVE AVERAGE...ALSO DUE TO THE LOW CLOUDS.
$$



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