Climatological Report (Monthly)
Issued by NWS Eureka, CA

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071
CXUS56 KEKA 040453
CLMEKA

CLIMATE REPORT
NATIONAL WEATHER SERVICE EUREKA CA
950 PM PDT THU AUG 3 2017

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

...THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF JULY 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              77   MM
 LOW               46   07/04/2010
                        07/01/2010
                        12/12/1932
HIGHEST            67   07/20                MM
LOWEST             50   07/19                MM
AVG. MAXIMUM     62.7                      -0.7
AVG. MINIMUM     52.7                       0.7
MEAN             57.7                       0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.34   1916
 MINIMUM         0.00   1967
TOTALS           0.07              0.18   -0.11
DAYS >= .01         3               2.7     0.3        4
DAYS >= .10         0               0.3    -0.3        2
DAYS >= .50         0               0.1    -0.1        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.04   07/01 TO 07/01

SNOWFALL (INCHES)
 LIQUID 7/1      0.00                      0.00

DEGREE_DAYS
HEATING TOTAL     217               226      -9      204
 SINCE 7/1        217               226      -9      204
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.9
HIGHEST WIND SPEED/DIRECTION    14/350    DATE  07/21
HIGHEST GUST SPEED/DIRECTION    17/360    DATE  07/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY         12


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 0
RAIN                      0     LIGHT RAIN                11
HAIL                      0     SLEET                      0
FOG                      23     FOG W/VIS <= 1/4 MILE      1
HAZE                      4

-  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.....- 0.11
TOTAL SINCE JANUARY 1ST...... 37.01 DEPARTURE FROM NORMAL.....+13.55
TOTAL SINCE OCT 1ST.......... 62.78 DEPARTURE FROM NORMAL.....+23.35

HIGHEST SLP......... 30.18 ON  7 LOWEST SLP........29.81 ON 24

...REMARKS...HIGH PRESSURE DOMINATED THE WEATHER PATTERN FOR THE
MONTH OF JULY. THIS KEPT THE MARINE LAYER AND CLOUDS IN PLACE FOR
MUCH OF THE MONTH...ONLY 2 DAYS SAW MAINLY CLEAR SKIES. TWENTY THREE
DAYS SAW SOME FOG DUE TO THE MARINE LAYER AS WELL. THE ONLY
PRECIPITATION CAME IN THE FORM OF DRIZZLE. THIS OCCURRED WHEN WEAK
WEATHER SYSTEMS COMBINED WITH THE MARINE MOISTURE TO BRING A FEW
HUNDREDTHS OF PRECIPITATION. THE MARINE LAYER ALSO KEPT THE
TEMPERATURE RANGE QUITE SMALL. HIGH TEMPERATURES RANGED FROM 59 TO
67 DEGREES. THE LOW TEMPERATURES VARIED EVEN LESS RANGING FROM 50 TO
55. TEMPERATURES AND RAINFALL FOR THE MONTH WERE NEAR NORMAL. MKK

$$



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