Lewistown Average Temperature by Month

This page shows the average temperature in each month of the year in Lewistown, Pennsylvania. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Lewistown?
In Lewistown, Pennsylvania, the warmest month is July, with an average daily high temperature of 85.2 °F and an average low of 62.6 °F.
What's the Coldest Month in Lewistown?
In Lewistown, Pennsylvania, the coolest month is January, with an average daily high temperature of 36.8 °F and an average low of 21.0 °F.
Month Avg. High Avg. Low
January 36.8 °F 21.0 °F
February 40.3 °F 22.3 °F
March 49.3 °F 29.2 °F
April 62.4 °F 38.9 °F
May 72.6 °F 49.1 °F
June 80.6 °F 58.3 °F
July 85.2 °F 62.6 °F
August 83.6 °F 61.3 °F
September 76.7 °F 53.8 °F
October 64.8 °F 42.5 °F
November 52.5 °F 33.0 °F
December 41.3 °F 26.3 °F
Year 62.1 °F 41.6 °F
Weather Station Details
Years Station Coordinates
1938–2024 Lewistown location
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