Climatological Report (Monthly)
Issued by NWS
Issued by NWS
458
CXUS56 KMTR 011630
CLMOAK
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
930 AM PDT MON JUN 01 2026
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...THE OAKLAND AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 99 MM
LOW 41 05/11/2010
HIGHEST 82 05/18 85 05/05
LOWEST 48 05/16 46 05/04
AVG. MAXIMUM 68.5 67.9 0.6 68.9
AVG. MINIMUM 52.9 51.9 1.0 51.5
MEAN 60.7 60.2
DAYS MAX >= 90 0 0
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 0
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.42 1957
MINIMUM 0.00 2022
TOTALS 0.39 0.63 -0.24 0.19
DAILY AVG. 0.01 0.02 -0.01 0.01
DAYS >= .01 3 1
DAYS >= .10 1 1
DAYS >= .50 0 0
DAYS >= 1.00 0 0
GREATEST
24 HR. TOTAL 0.29 05/28 TO 05/28 0.19 05/12 TO 05/12
DEGREE DAYS
HEATING TOTAL 130 170 -40 146
SINCE 7/1 1975 2597 -622 MM
COOLING TOTAL 6 12 -6 6
SINCE 1/1 30 17 13 MM
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WIND (MPH)
AVERAGE WIND SPEED 9.9
RESULTANT WIND SPEED/DIRECTION 8/260
HIGHEST WIND SPEED/DIRECTION 28/350 DATE 05/17
28/360 05/18
HIGHEST GUST SPEED/DIRECTION 41/010 DATE 05/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.52
NUMBER OF DAYS FAIR 9
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 8
AVERAGE RH (PERCENT) 71
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 4 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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