Records for Great Falls Area, Montana (GTFthr) on 05-09
Record Highs
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1: 85°F (1987)
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2: 81°F (1994)
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3: 81°F (1900)
Record Lows
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1: 24°F (1990)
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2: 25°F (2015)
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3: 26°F (2022)
Lowest Highs
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1: 55°F (1987)
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2: 51°F (1900)
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3: 50°F (2012)
Highest Lows
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1: 36°F (1996)
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2: 36°F (1982)
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3: 38°F (1948)
Highest May temperature:
100°F on 05-28-1919.
Lowest May temperature:
12°F on 05-01-2009.
Average temperature is 52.7°F
Average high is 65.5°F
Average low is 39.8°F
Temperature data from 1891 to 2022.
Record Precipitation
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1: 0.96" (1983)
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2: 0.59" (1896)
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3: 0.57" (2016)
Precipitation data from 1891 to 2022.