Climatological Report (Annual)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1
000
CXUS56 KMTR 041629
CLAMRY

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO
828 AM PST MON JAN 4 2010

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

...THE SAN JOSE CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1893 TO 2010

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              79   12/12/1958
 LOW               19   12/23/1990
                        12/22/1990
HIGHEST            69   12/20        MM      MM       65  12/05
                                                          12/02
LOWEST             29   12/08        MM      MM       32  12/18
AVG. MAXIMUM     57.5              58.2    -0.7     56.8
AVG. MINIMUM     41.2              41.1     0.1     39.4
MEAN             49.4                MM      MM     48.1
DAYS MAX >= 90      0                MM      MM        0
DAYS MAX <= 32      0                MM      MM        0
DAYS MIN <= 32      2                MM      MM        1
DAYS MIN <= 0       0                MM      MM        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           2.16              2.00    0.16     1.54
DAILY AVG.       0.07              0.06    0.01     0.05
DAYS >= .01        11                MM      MM       12
DAYS >= .10         7                MM      MM        6
DAYS >= .50         0                MM      MM        0
DAYS >= 1.00        0                MM      MM        0
GREATEST
 24 HR. TOTAL    0.56   12/12 TO 12/13           12/14 TO 12/15
                                                          12/30 TO 12/30[J)
                                                          12/30 TO 12/30[J)
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/15(00) TO 12/15(00)
                                                 12/30(00) TO 12/30(00)0[J)
                                                 12/30(00) TO 12/30(00)0[J)

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM
 24 HR TOTAL       MM
 SNOW DEPTH        MM   MM
TOTALS            0.0                MM      MM      0.0
 LIQUID EQUIV    0.00                MM      MM     0.00
SINCE 7/1         0.0                MM      MM      0.0
 LIQUID 7/1      0.00                MM      MM     0.00
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0                MM      MM        0
DAYS >= 1.0         0                MM      MM        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   12/31 TO 12/31           12/30 TO 12/30
                                                          12/30 TO 12/30[J)
                                                          12/30 TO 12/30[J)
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/30(00) TO 12/30(00)
                                                 12/30(00) TO 12/30(00)0[J)
                                                 12/30(00) TO 12/30(00)0[J)

DEGREE_DAYS
HEATING TOTAL     474               474       0      517
 SINCE 7/1        881               920     -39      762
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        676               494     182      760

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.2
RESULTANT WIND SPEED/DIRECTION   0/212
HIGHEST WIND SPEED/DIRECTION    25/300    DATE  12/22
HIGHEST GUST SPEED/DIRECTION    33/290    DATE  12/23

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       7
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      2
HAZE                      8

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

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.