589
CXUS56 KMTR 010826
CLMLVK

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT THU MAY 01 2025

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

...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1930 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   04/29/1981
 LOW              29   04/01/1976
                       04/28/1970
                       04/24/1964
HIGHEST           83   04/14                          84  04/21
LOWEST            37   04/02                          35  04/06
                       04/03
                       04/04
AVG. MAXIMUM    70.8               69.3     1.5     70.1
AVG. MINIMUM    45.3                                45.5
MEAN            58.1               56.9     1.2     57.8
DAYS MAX >= 90     0                                   0
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        1.37   2024
 MINIMUM        0.08   2023
TOTALS          0.19               1.08   -0.89     1.37
DAILY AVG.      0.01                                0.05
DAYS >= .01        1                                   5
DAYS >= .10        1                                   3
DAYS >= .50        0                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.22   03/31 TO 04/01               0.84  04/04 TO 04/04


DEGREE DAYS
HEATING TOTAL    137                249    -112      212
 SINCE 7/1      2204               2549    -345       MM
COOLING TOTAL      3                  8      -5        5
 SINCE 1/1         4                  8      -4       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
RESULTANT WIND SPEED/DIRECTION   5/270
HIGHEST WIND SPEED/DIRECTION    30/250    DATE  04/01
HIGHEST GUST SPEED/DIRECTION    39/260    DATE  04/01

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     65

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

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

$$