Records for San Jose Area, California (SJCthr) on 09-18
Record Highs
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1: 100°F (1913)
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2: 99°F (1912)
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3: 98°F (2000)
Record Lows
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1: 42°F (1911)
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2: 42°F (1908)
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3: 42°F (1907)
Lowest Highs
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1: 68°F (1984)
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2: 65°F (1956)
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3: 64°F (2020)
Highest Lows
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1: 66°F (1959)
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2: 67°F (2004)
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3: 68°F (1989)
Highest September temperature:
109°F on 09-06-2022.
Lowest September temperature:
35°F on 09-23-1903.
Average temperature is 69.7°F
Average high is 81.3°F
Average low is 58.1°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 2.00" (1959)
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2: 0.51" (2022)
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3: 0.18" (1966)
Precipitation data from 1893 to 2022.