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  4. January

Harrisburg, PA Climate in January

Temperature for January

In Harrisburg, PA during January the average high temperature is 39.3°F. The hottest day on record was January 6, 2007 when the temperature recorded was 69.1°F.

Harrisburg, PA daily average and extreme temperature range for January

Low Temperature

Overnight in January the average temperature drops below freezing at 25.3°F, with the lowest temperature of -15.2°F being recorded on January 21, 1994. On average there are 7 days in January when the temperature stays below freezing all day. In the worst January there were 17 days when the temperature did not make it above freezing. Overnight temperatures drop below freezing between 17 and 30 times in January.

Precipitation for January

In January the average monthly rainfall in Harrisburg, PA is 1.38 inches with rain usually falling on between 3 and 4 days. 1992 was the driest January with only 0.00 inches of rain falling, and 2006 was the wettest January with 4.93 inches of rain. The wettest single day in January was 14 January 2005 when 1.23 inches of rain fell.

In January it usually snows on between 2 and 3 days. In January there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in January.

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