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Climate in Chewton · NOAA 1991–2020 normals

Chewton has chilly winters and pleasant summers

A typical July afternoon reaches 84°, a January night drops to 20°, and about 28 inches of snow falls in a normal winter.

A year in Chewton at a glance

Each month’s typical high and low, and what it brings.

Jan36°20° 10" snow
Feb39°22° 8" snow
Mar48°29° 4" snow
Apr62°38° Last frost ~27
May72°47° Nice out
Jun80°56° Nice outWettest
Jul84°60° Nice out5 days 90°+
Aug82°59° Nice out2 days 90°+
Sep76°53° Nice out
Oct now63°42° Nice outFirst frost ~25
Nov51°33°
Dec40°25° 5" snow
A normal year

What a year in Chewton feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
38° / 22°
11 days with 1"+ of snow
Spring
61° / 38°
Last frost around Apr 27
Summer
82° / 59°
10 days reach 90°
Fall
63° / 43°
First frost around Oct 25
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Rain & snow

28 inches of snow, 42 of rain and melt

June is the wettest month and February the driest. Rain or snow falls on about 156 days a year.

42"
Rain + melted snow a year
792nd driest of 3,547 Pennsylvania towns
More than 59% of U.S. towns
28"
Snow in a normal winter
1162nd least snowy of 3,541 Pennsylvania towns
More than 54% of U.S. towns
42 days
With 1"+ of snow on the ground
1315th snowiest of 3,014 Pennsylvania towns
More than 61% of U.S. towns

Rain + melted snow by month

Inches of water

4.6"
JFMAMJJASOND

Snowfall by month

Inches of snow

10"
JFMAMJJASOND
Frost & heat

About 178 frost-free days a year

In half of years the last 32° night comes by April 27 and the first by October 25.

131
nights at or below 32° in a normal year
5
nights below 0° in a normal year
10
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

28
JFMAMJJASOND

90° days by month

Average days at 90° or more

5.4
JFMAMJJASOND
Living here

Living with Chewton’s climate

What the numbers mean for a garden, a driveway, a furnace and a free afternoon.

The garden window

178 frost-free days. The last frost comes by Apr 27 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 25.

Snow season

About 28" a winter over 11 days with an inch or more, most in January. Snow covers the ground about 42 days a year.

Furnace season

Months averaging under 55° run from October through April. Heating is 90% of the year’s heating-and-cooling load.

Summer heat

About 10 days a year reach 90°, and July afternoons average 84°.

Get outside

The nicest months are May, June, July, August, September and October.

Parks & trails →
Storms and extremes

Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.

Natural hazards →
Next door

Chewton and its neighbors

Wayne has the coldest January nights next door (20°) and Wampum the hottest July afternoons (84°). Tap a town to see its climate.

New Beaver: January low 20°, July high 84°Ellwood City: January low 20°, July high 84°Perry: January low 19°, July high 83°Ellport: January low 20°, July high 84°Wurtemburg: January low 20°, July high 84°North Sewickley: January low 20°, July high 83°Slippery Rock: January low 19°, July high 83°Wampum: January low 20°, July high 84°Wayne: January low 20°, July high 83°Chewton: January low 20°, July high 84° ChewtonWampumWayne
ColderMilder19° to 20°
Chewton19.7°
Wayne19.7° same
Wampum20.1° +0.4°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in Chewton averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.6°).

+1.4°1991–2020 vs. 1901–2000

A bigger shift than in 62% of U.S. towns.

❄️ Winter+2.0°now 30°, was 28°
🌷 Spring+1.3°now 49°, was 48°
☀️ Summer+0.9°now 70°, was 69°
🍂 Fall+1.3°now 53°, was 52°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec
Compared with other towns

How Chewton compares

Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.

Summer heat84° July high
Cooler than 61% of U.S. towns1755th hottest of 3,547 Pennsylvania towns
Winter cold20° January low
Milder than 52% of U.S. towns1748th coldest of 3,547 Pennsylvania towns
Precipitation42" a year
Wetter than 59% of U.S. towns792nd driest of 3,547 Pennsylvania towns
Snow28" a winter
Snowier than 54% of U.S. towns1162nd least snowy of 3,541 Pennsylvania towns
Growing season178 frost-free days
Longer than 50% of U.S. towns1257th longest of 3,547 Pennsylvania towns
Month by month

Chewton 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
January36°20°3.0" 10.1"161619° – 37°
February39°22°2.5" 7.7"121216° – 39°
March48°29°3.3" 3.7"12531° – 49°
April62°38°3.8" 0.3"15043° – 55°
May72°47°3.9" 014053° – 66°
June80°56°4.6" 013064° – 71°
July84°60°4.3" 012068° – 75°
August82°59°3.8" 011066° – 75°
September76°53°3.8" 011061° – 69°
October63°42°3.1" 012049° – 59°
November51°33°3.0" 0.8"13236° – 47°
December40°25°3.1" 4.9"14723° – 43°
Year61°40°42.2"27.5"15642
Heating & cooling

Heating and cooling a home in Chewton

90% of the work is heating, so the furnace matters far more than the air conditioner.

90%heating
5,959 heating degree daysMore heating than 55% of U.S. towns
654 cooling degree daysLess cooling than 64% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.

Year to year

How much a month can swing

A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 16° to 39°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal

Common questions about Chewton’s climate

What is the coldest month in Chewton?

January, with a typical high of 36° and a low of 20°.

What is the hottest month in Chewton?

July, with a typical high of 84° and a low of 60°. About 10 days a year reach 90°.

How much snow does Chewton get?

About 28 inches in a normal winter, most of it in January.

When is the first frost in Chewton?

In half of years the first 32° night comes by October 25, and the last spring frost by April 27.

What is the rainiest month in Chewton?

June, with 4.6 inches of rain and melted snow. The year totals 42 inches.

Neighbors talk weather

Gardens, snow, and the best days of the year in Chewton.

Town Square →
Weigh in
Is Chewton’s weather one of its best features?

Your answer becomes a post in Town Square.

Ask your neighbors

Temperatures and rainfall come from NOAA’s gridded climate normals for Chewton itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at New Castle 1 N, PA (9 mi, snow) and Beaver Falls 1 Ne, PA (9 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.

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