Climate · Earl

Earl, PA climate

Earl has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 85°, a January night drops to 21°, and about 4 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
85°
825th hottest of 3,547 Pennsylvania towns
January low
21°
1316th mildest of 3,547 Pennsylvania towns
Rain + melted snow
49 in
349th wettest of 3,547 Pennsylvania towns
Snow a winter
4 in
43rd least snowy of 3,541 Pennsylvania towns
A normal year

What a year in Earl feels like

Winter

41° / 23°
Typical high / low · 2 days with an inch or more of snow

Spring

61° / 40°
Typical high / low · Last frost around Apr 20

Summer

83° / 61°
Typical high / low · 17 days reach 90° in a normal year

Fall

65° / 44°
Typical high / low · First frost around Oct 23
Best months to be outsideMayJunAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Earl weather by month

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

MonthHighLowRain + meltSnowWet days30-yr range
January38°21°3.4" 1.4"8 21° – 37°
February41°23°2.8" 1.9"5 20° – 39°
March49°30°4.0" 0.6"9 33° – 48°
April62°40°3.9" 09 46° – 56°
May72°50°4.0" 09 57° – 66°
June80°59°4.6" 08 66° – 73°
July85°64°5.1" 08 70° – 78°
August83°62°4.4" 08 68° – 76°
September76°55°4.9" 07 63° – 69°
October64°43°4.3" 0.1"7 49° – 61°
November53°34°3.4" 07 38° – 48°
December43°26°4.1" 0.2"8 26° – 46°
Year62°42°48.8"4.2"94

“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 Earl

Earl gets 49 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 94 days a year.

49 in
Rain + melted snow a year
More rain than 84% of U.S. towns
4 in
Snow in a normal winter
Less snow than 79% of U.S. towns
94 days
With rain or snow (0.01"+)

Rain + melted snow by month

Inches of water
5.1"

Snowfall by month

Inches of snow
1.9"
Frost & the growing season

About 186 frost-free days a year

In half of years the last 32° night comes by April 20 and the first one by October 23. That leaves about 186 frost-free days for gardens, longer than 59% of U.S. towns.

111
nights at or below 32° in a normal year
<1
nights below 0° in a normal year
17
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 Earl

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Earl, 87% of that work is heating and 13% is cooling, so the furnace matters far more than the air conditioner.

87%heating
5,534 heating degree daysLess heating than 55% of U.S. towns
794 cooling degree daysLess cooling than 54% 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 Earl

Earl and its neighbors

Earl borders 5 towns with climate data. January nights across them vary by 1.5°. Pike has the coldest January nights (21°) and Amity the hottest July afternoons (88°). Earl’s January low is 21° and its July high 85°.

Exeter: January low 22°, July high 87°Ruscombmanor: January low 21°, July high 85°Alsace: January low 20°, July high 84°Rockland: January low 20°, July high 84°Boyertown: January low 22°, July high 87°Bechtelsville: January low 21°, July high 86°Washington: January low 21°, July high 86°Douglass: January low 22°, July high 87°District: January low 20°, July high 84°Union: January low 22°, July high 86°West Pottsgrove: January low 22°, July high 87°Upper Pottsgrove: January low 22°, July high 87°Oley: January low 22°, July high 87°Colebrookdale: January low 21°, July high 86°Pike: January low 21°, July high 85°Amity: January low 22°, July high 88°Douglass: January low 22°, July high 88°Earl: January low 21°, July high 85° EarlOleyColebrookdalePikeAmityDouglass
ColderMilder20° to 22°
Pike20.5° −0.2°
Earl20.7°
Colebrookdale21.2° +0.5°
Oley21.6° +0.9°
Amity22.0° +1.3°
Douglass22.0° +1.3°

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

Compared with other towns

How Earl compares

Summer heat85° July high
Hotter than 53% of U.S. towns825th hottest of 3,547 Pennsylvania towns
Winter cold21° January low
Milder than 57% of U.S. towns1316th mildest of 3,547 Pennsylvania towns
Precipitation49" a year
Wetter than 84% of U.S. towns349th wettest of 3,547 Pennsylvania towns
Snow4" a winter
Less snow than 79% of U.S. towns43rd least snowy of 3,541 Pennsylvania towns
Growing season186 frost-free days
Longer than 59% of U.S. towns807th longest 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 Earl averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.4°). The shift is larger than in 88% of U.S. towns.

❄️ Winter+2.7° now 32°, was 29°
🌷 Spring+1.5° now 51°, was 49°
☀️ Summer+1.6° now 72°, was 71°
🍂 Fall+1.5° now 54°, was 53°

Change by month1991–2020 average minus 1901–2000 average, at Earl’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. December swings the most: between 1991 and 2020 its average temperature ranged from 26° to 46°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Earl’s climate

What is the coldest month in Earl?

January, with a typical high of 38° and a low of 21°.

What is the hottest month in Earl?

July, with a typical high of 85° and a low of 64°. About 17 days a year reach 90°.

How much snow does Earl get?

About 4 inches in a normal winter, most of it in February.

When is the first frost in Earl?

In half of years the first 32° night comes by October 23, and the last spring frost by April 20.

What is the rainiest month in Earl?

July, with 5.1 inches of rain and melted snow. The year totals 49 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Earl itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bechtelsville 1ene, PA (5 mi, snow) and Pottstown Limerick Airport, PA (11 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.

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