Records for San Jose Area, California (SJCthr) on 09-30
Record Highs
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1: 95°F (2001)
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2: 93°F (1978)
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3: 93°F (1952)
Record Lows
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1: 35°F (1893)
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2: 39°F (1925)
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3: 40°F (1894)
Lowest Highs
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1: 62°F (2020)
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2: 61°F (1999)
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3: 61°F (1966)
Highest Lows
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1: 60°F (1894)
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2: 61°F (1930)
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3: 65°F (2015)
Highest September temperature:
109°F on 09-06-2022.
Lowest September temperature:
35°F on 09-23-1903.
Average temperature is 67.8°F
Average high is 79°F
Average low is 56.7°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.69" (1894)
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2: 0.49" (1983)
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3: 0.27" (1976)
Precipitation data from 1893 to 2022.