Climate · Hawthorn

Hawthorn, PA climate

Hawthorn has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 18°, and about 35 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
82°
1074th coolest of 3,547 Pennsylvania towns
January low
18°
811th coldest of 3,547 Pennsylvania towns
Rain + melted snow
45 in
1505th wettest of 3,547 Pennsylvania towns
Snow a winter
35 in
1539th snowiest of 3,541 Pennsylvania towns
A normal year

What a year in Hawthorn feels like

Winter

37° / 20°
Typical high / low · 12 days with an inch or more of snow

Spring

60° / 35°
Typical high / low · Last frost around May 10

Summer

80° / 56°
Typical high / low · 7 days reach 90° in a normal year

Fall

62° / 40°
Typical high / low · First frost around Oct 12
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

Hawthorn weather by month

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

MonthHighLowRain + meltSnowWet days30-yr range
January34°18°3.4" 12.4"15 17° – 36°
February38°19°2.6" 5.1"12 13° – 37°
March47°25°3.5" 5.9"13 31° – 47°
April61°36°3.9" 0.3"14 43° – 54°
May71°45°4.0" 014 51° – 65°
June79°54°4.8" 013 62° – 69°
July82°58°4.7" 012 65° – 74°
August81°57°4.1" 011 65° – 73°
September74°50°4.1" 010 59° – 67°
October63°39°3.5" 011 47° – 57°
November50°31°3.4" 1.7"12 35° – 46°
December39°24°3.5" 9.1"14 21° – 42°
Year60°38°45.4"34.5"149

“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 Hawthorn

Hawthorn gets 45 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 149 days a year.

45 in
Rain + melted snow a year
More rain than 70% of U.S. towns
35 in
Snow in a normal winter
More snow than 63% of U.S. towns
149 days
With rain or snow (0.01"+)

Rain + melted snow by month

Inches of water
4.8"

Snowfall by month

Inches of snow
12"
Frost & the growing season

About 155 frost-free days a year

In half of years the last 32° night comes by May 10 and the first one by October 12. That leaves about 155 frost-free days for gardens, shorter than 76% of U.S. towns.

152
nights at or below 32° in a normal year
7
nights below 0° in a normal year
7
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 Hawthorn

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Hawthorn, 93% of that work is heating and 7% is cooling, so the furnace matters far more than the air conditioner.

93%heating
6,421 heating degree daysMore heating than 64% of U.S. towns
515 cooling degree daysLess cooling than 75% 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 Hawthorn

Hawthorn and its neighbors

Hawthorn borders 2 towns with climate data. January nights across them vary by 0.2°. Redbank has the coldest January nights (17°) and Redbank the hottest July afternoons (82°). Hawthorn’s January low is 18° and its July high 82°.

Wayne: January low 18°, July high 82°Mahoning: January low 18°, July high 82°Porter: January low 17°, July high 81°Beaver: January low 17°, July high 81°Ringgold: January low 17°, July high 81°Limestone: January low 17°, July high 81°New Bethlehem: January low 18°, July high 82°Porter: January low 17°, July high 82°Clover: January low 17°, July high 81°Redbank: January low 17°, July high 82°Redbank: January low 17°, July high 82°Hawthorn: January low 18°, July high 82° HawthornRedbankRedbank
ColderMilder17° to 18°
Redbank17.3° −0.2°
Redbank17.4° −0.1°
Hawthorn17.5°

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

Compared with other towns

How Hawthorn compares

Summer heat82° July high
Cooler than 75% of U.S. towns1074th coolest of 3,547 Pennsylvania towns
Winter cold18° January low
Colder than 59% of U.S. towns811th coldest of 3,547 Pennsylvania towns
Precipitation45" a year
Wetter than 70% of U.S. towns1505th wettest of 3,547 Pennsylvania towns
Snow35" a winter
Snowier than 63% of U.S. towns1539th snowiest of 3,541 Pennsylvania towns
Growing season155 frost-free days
Shorter than 76% of U.S. towns571st 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

+1.3°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Hawthorn averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.6°). The shift is larger than in 59% of U.S. towns.

❄️ Winter+2.0° now 28°, was 26°
🌷 Spring+1.4° now 48°, was 46°
☀️ Summer+0.8° now 68°, was 68°
🍂 Fall+1.1° now 51°, was 50°

Change by month1991–2020 average minus 1901–2000 average, at Hawthorn’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 37°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Hawthorn’s climate

What is the coldest month in Hawthorn?

January, with a typical high of 34° and a low of 18°.

What is the hottest month in Hawthorn?

July, with a typical high of 82° and a low of 58°. About 7 days a year reach 90°.

How much snow does Hawthorn get?

About 35 inches in a normal winter, most of it in January.

When is the first frost in Hawthorn?

In half of years the first 32° night comes by October 12, and the last spring frost by May 10.

What is the rainiest month in Hawthorn?

June, with 4.8 inches of rain and melted snow. The year totals 45 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Hawthorn itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Putneyville 2 Se Dam, PA (7 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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