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000
CXUS56 KEKA 041349
CLMEKA

CLIMATE REPORT
NATIONAL WEATHER SERVICE EUREKA CA
650 AM PDT TUE JUN 4 2013

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

...THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF MAY 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1886 TO 2013

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            73   05/02                MM
LOWEST             37   05/01                MM
AVG. MAXIMUM     60.6                       0.5
AVG. MINIMUM     47.8                       0.3
MEAN             54.2                       0.4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.20   1889
 MINIMUM         0.03   1955
TOTALS           1.17              1.78   -0.61
DAYS >= .01         9               9.1    -0.1       10
DAYS >= .10         3               4.6    -1.6        3
DAYS >= .50         1               1.1    -0.1        0
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.50   05/27

SNOWFALL (INCHES)
 LIQUID 7/1        MM                        MM

DEGREE_DAYS
HEATING TOTAL     327               347     -20      401
 SINCE 7/1       4524              4168     356     4505
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.6
HIGHEST WIND SPEED/DIRECTION    18/MM     DATE   MM
HIGHEST GUST SPEED/DIRECTION    36/360    DATE  05/01

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         16


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 0
RAIN                      0     LIGHT RAIN                16
HAIL                      0     SLEET                      0
FOG                      14     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...............  1.17 DEPARTURE FROM NORMAL..... -0.61
TOTAL SINCE JANUARY 1ST...... 11.05 DEPARTURE FROM NORMAL.....-11.48
TOTAL SINCE JULY 1ST......... 31.88 DEPARTURE FROM NORMAL..... -7.70

HIGHEST SLP......... 30.30 ON 18
LOWEST SLP.......... 29.53 ON  3

...REMARKS...THE MAIN THEME FOR THE MONTH WAS PERSISTENT HIGH
PRESSURE ACROSS THE PACIFIC NORTHWEST. A FEW SYSTEMS SQUASHED DOWN
THE RIDGE BRIEFLY BRINGING SOME RAIN TO EUREKA...HOWEVER MAY
CONTINUED THE TREND OF MONTHS WITH BELOW NORMAL RAINFALL. ONLY 1.17
INCHES FELL WHICH WAS 65 PERCENT OF THE 30 YEAR NORMAL VALUE OF 1.78
INCHES. MONTHLY RAINFALL IN EUREKA HAS BEEN BELOW NORMAL SINCE
DECEMBER WHICH WAS THE LAST TIME WE RECEIVED ABOVE NORMAL RAINFALL.
THIS RIDGE OF HIGH PRESSURE ALSO KEPT TEMPERATURES SLIGHTLY ABOVE
NORMAL. TWO DAYS HAD SIGNIFICANT OFFSHORE FLOW AND THIS ALLOWED
TEMPERATURES TO WARM INTO THE 70S. A NEW RECORD HIGH OF 73 WAS SET
ON THE 2ND. THE PREVIOUS RECORD WAS 69 SET IN 1998.






$$