2025 Pennsylvania Temperature & Precipitation Summary

 2025 Pennsylvania Temperature & Precipitation Summary

This is the third and final post looking back at the weather in Pennsylvania 2025. Previously I reviewed the Severe Weather of the year and the top weather highlights from 2025. Today I will break down the temperature & precipitation statistics & extremes from Pennsylvania in 2025.

Temperatures & Precipitation Statistics

Chart detailing average temperatures and precipitation compared to average for 2025 across Pennsylvania.

Temperatures across the state were near average, generally within a half of a degree of average. 2025 was the coolest year since 2014 for Harrisburg and Scranton. 2025 was very dry across the state (with the exception of Erie) with departures of 3" to 10"! 2025 was the driest year since 2016 for Allentown, Altoona, Philadelphia, Scranton, and Williamsport. Philadelphia was 0.08" away from the driest year since 2001.
Chart detailing average temperatures by month in 2025 for Pennsylvania.

Looking at the state as a whole, January, August, and December were the only months that were cooler than average. July was the 4th warmest July on record. March was the 8th warmest and most anomalous month at 6.8° above average. The year finished as the 23rd warmest with a departure of 1.6° warmer than average. 
Chart detailing precipitation by month in 2025 for Pennsylvania.

On the precipitation side, January and August, which were both cooler than average, finished as the 4th driest January & 4th driest August on record. May was the wettest month of the year, ranking as second wettest May on record. The year as a whole finished nearly 2 inches below average. As the 36th driest year on record, this was the driest year since 2016.

Some other 2025 statistics of note:
-January was the second driest on record for Bradford and Williamsport.
-March was the 3rd warmest on record for Bradford.
-Altoona and Harrisburg recorded the wettest May on record. It was also the 2nd wettest May in Allentown.
-August was the 3rd driest on record in Altoona.

Statewide Extremes

The coldest temperature observed in Pennsylvania in 2025 was -23° near Bradford during a deep cold spell in late January. Philadelphia hit 101° on June 24th, the hottest temperature of 2025 in Pennsylvania. Red Hill in Montgomery County observed the highest 24 hour precipitation with 4.80" of rain on August 1st. On the last day of the year, Erie measured 16.0" of snow.

Map showing temperature and precipitation extremes in 2025 for Pennsylvania.

Yearly average temperatures ranged from 45.1° in Laporte to 57.3° in Philadelphia. Precipitation totals ranged from 31.67" in DuBois to 67.27" near Hidden Valley. Lewistown recorded the least amount of snow with just 12.0" of snow (Philadelphia was not far behind with 12.3"). Corry in Erie County was the snow winner with over 180"!

Map showing temperature, precipitation, and snow extremes for the year of 2025 in Pennsylvania.

Below is a summary of the monthly temperature & precipitation extremes observed across Pennsylvania. The first 90° temperatures didn't arrive until June (we had 90° highs in April last year). Temperatures dropped below freezing somewhere in the state in every month except July. 

2025 monthly temperature extremes for Pennsylvania.

On the precipitation side, three months saw totals over 10" somewhere in the state. All of Pennsylvania recorded over 4.00" in May. There were some extremly dry spots in January and August.
2025 monthly precipitation extremes for Pennsylvania.

Corry in Erie County dominated the monthly snow totals with an impressive 64.1" in January and 54.0" in December.
2025 monthly snow extremes for Pennsylvania.

Lastly, lets look at some of the extremes from select cities scattered across Pennsylvania. All but northwest Pennsylvania observed the highest temperatures on June 24th. January 21st and 22nd were the coldest days. Allentown, Pittsburgh, and Scranton recorded the wettest day of 2025 in September despite the month being drier than average.
City extreme temperatures and precipitation across Pennsylvania observed in 2025.

Wrapping Up

This wraps up my review of 2025. I have been busy with new posts and the next one is not far behind. Look for a new post next week reviewing weather events from 30 years ago.

Thanks for reading and remember to always look up!

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