Climate · Pymatuning

Pymatuning, PA climate

Pymatuning has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 18°, and about 68 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
83°
1471st coolest of 3,547 Pennsylvania towns
January low
18°
1098th coldest of 3,547 Pennsylvania towns
Rain + melted snow
43 in
886th driest of 3,547 Pennsylvania towns
Snow a winter
68 in
318th snowiest of 3,541 Pennsylvania towns
A normal year

What a year in Pymatuning feels like

Winter

37° / 20°
Typical high / low · 22 days with an inch or more of snow

Spring

60° / 36°
Typical high / low · Last frost around May 1

Summer

81° / 57°
Typical high / low · 8 days reach 90° in a normal year

Fall

63° / 41°
Typical high / low · First frost around Oct 17
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Pymatuning weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January35°18°2.9" 19.6"1919 18° – 36°
February38°19°2.4" 15.1"1616 13° – 38°
March47°27°3.1" 10.5"158 29° – 49°
April61°36°3.9" 2.6"151 42° – 54°
May71°46°3.9" 0140 52° – 65°
June79°55°4.6" 0130 62° – 70°
July83°59°4.4" 0110 67° – 75°
August82°58°3.8" 0110 65° – 74°
September75°51°3.9" 0100 60° – 68°
October63°41°3.5" 0.7"130 48° – 58°
November50°32°3.0" 4.5"142 34° – 47°
December39°24°3.1" 14.8"1812 22° – 43°
Year60°39°42.5"67.8"16858

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Pymatuning

Pymatuning gets 43 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 168 days a year. Snow covers the ground about 58 days of the year.

43 in
Rain + melted snow a year
More rain than 60% of U.S. towns
68 in
Snow in a normal winter
More snow than 91% of U.S. towns
58 days
With 1"+ of snow on the ground
More than 71% of U.S. towns

Rain + melted snow by month

Inches of water
4.6"

Snowfall by month

Inches of snow
20"
Frost & the growing season

About 167 frost-free days a year

In half of years the last 32° night comes by May 1 and the first one by October 17. That leaves about 167 frost-free days for gardens, shorter than 64% of U.S. towns.

127
nights at or below 32° in a normal year
4
nights below 0° in a normal year
8
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Pymatuning

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Pymatuning, 91% of that work is heating and 9% is cooling, so the furnace matters far more than the air conditioner.

91%heating
6,090 heating degree daysMore heating than 58% of U.S. towns
633 cooling degree daysLess cooling than 66% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Around Pymatuning

Pymatuning and its neighbors

Pymatuning borders 3 towns with climate data. January nights across them vary by 0.3°. Delaware has the coldest January nights (18°) and Clark the hottest July afternoons (83°). Pymatuning’s January low is 18° and its July high 83°.

Hermitage: January low 18°, July high 83°Sharpsville: January low 18°, July high 83°Hartford: January low 18°, July high 83°Vernon: January low 18°, July high 83°Jefferson: January low 18°, July high 83°Hempfield: January low 17°, July high 82°Otter Creek: January low 18°, July high 82°Fairview: January low 17°, July high 81°Fredonia: January low 18°, July high 82°Clark: January low 18°, July high 83°South Pymatuning: January low 18°, July high 83°Delaware: January low 18°, July high 82°Pymatuning: January low 18°, July high 83° PymatuningClarkSouth PymatuningDelaware
ColderMilder17° to 18°
Delaware17.8° −0.2°
Pymatuning18.0°
South Pymatuning18.0° same
Clark18.1° +0.1°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.

Compared with other towns

How Pymatuning compares

Summer heat83° July high
Cooler than 65% of U.S. towns1471st coolest of 3,547 Pennsylvania towns
Winter cold18° January low
Colder than 56% of U.S. towns1098th coldest of 3,547 Pennsylvania towns
Precipitation43" a year
Wetter than 60% of U.S. towns886th driest of 3,547 Pennsylvania towns
Snow68" a winter
Snowier than 91% of U.S. towns318th snowiest of 3,541 Pennsylvania towns
Growing season167 frost-free days
Shorter than 64% of U.S. towns1062nd shortest of 3,547 Pennsylvania towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.8°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Pymatuning averaged 1.8° warmer than the 1900s. The biggest change is in December (+2.9°). The shift is larger than in 85% of U.S. towns.

❄️ Winter+2.4° now 29°, was 26°
🌷 Spring+1.8° now 48°, was 46°
☀️ Summer+1.3° now 69°, was 68°
🍂 Fall+1.5° now 52°, was 51°

Change by month1991–2020 average minus 1901–2000 average, at Pymatuning’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 13° to 38°. September is the most reliable, staying within 8°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Pymatuning’s climate

What is the coldest month in Pymatuning?

January, with a typical high of 35° and a low of 18°.

What is the hottest month in Pymatuning?

July, with a typical high of 83° and a low of 59°. About 8 days a year reach 90°.

How much snow does Pymatuning get?

About 68 inches in a normal winter, most of it in January.

When is the first frost in Pymatuning?

In half of years the first 32° night comes by October 17, and the last spring frost by May 1.

What is the rainiest month in Pymatuning?

June, with 4.6 inches of rain and melted snow. The year totals 43 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Pymatuning itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Youngstown Rgnl Airport, OH (14 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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