Climate · Salisbury

Salisbury, PA climate

Salisbury has chilly, snowy winters and warm summers, with plenty of rain. A typical July afternoon reaches 86°, a January night drops to 20°, and about 33 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
86°
313th hottest of 3,547 Pennsylvania towns
January low
20°
1552nd mildest of 3,547 Pennsylvania towns
Rain + melted snow
48 in
624th wettest of 3,547 Pennsylvania towns
Snow a winter
33 in
1723rd snowiest of 3,541 Pennsylvania towns
A normal year

What a year in Salisbury feels like

Winter

41° / 23°
Typical high / low · 8 days with an inch or more of snow

Spring

62° / 39°
Typical high / low · Last frost around Apr 20

Summer

84° / 61°
Typical high / low · 18 days reach 90° in a normal year

Fall

65° / 43°
Typical high / low · First frost around Oct 24
Best months to be outsideMayJunSepOctHighs of 62–84° and lows of 40° or more
Month by month

Salisbury 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
January39°20°3.5" 9.8"119 20° – 37°
February42°22°2.7" 10.8"1011 20° – 39°
March50°29°3.8" 6.3"116 34° – 49°
April63°39°3.8" 0.5"120 47° – 56°
May73°49°3.8" 0120 56° – 67°
June81°58°4.4" 0110 67° – 73°
July86°63°5.0" 0110 70° – 78°
August84°61°4.6" 0100 68° – 76°
September77°54°4.7" 0100 62° – 70°
October66°42°4.3" 0.2"100 48° – 61°
November54°33°3.4" 0.9"91 38° – 48°
December43°26°4.0" 4.6"125 26° – 46°
Year63°41°47.9"33.1"12931

“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 Salisbury

Salisbury gets 48 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 129 days a year. Snow covers the ground about 31 days of the year.

48 in
Rain + melted snow a year
More rain than 81% of U.S. towns
33 in
Snow in a normal winter
More snow than 61% of U.S. towns
31 days
With 1"+ of snow on the ground
More than 52% of U.S. towns

Rain + melted snow by month

Inches of water
5.0"

Snowfall by month

Inches of snow
11"
Frost & the growing season

About 184 frost-free days a year

In half of years the last 32° night comes by April 20 and the first one by October 24. That leaves about 184 frost-free days for gardens, longer than 57% of U.S. towns.

118
nights at or below 32° in a normal year
1
nights below 0° in a normal year
18
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 Salisbury

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Salisbury, 84% of that work is heating and 16% is cooling, so the furnace matters far more than the air conditioner.

84%heating
5,293 heating degree daysLess heating than 60% of U.S. towns
981 cooling degree daysMore cooling than 59% 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 Salisbury

Salisbury and its neighbors

Salisbury borders 8 towns with climate data. January nights across them vary by 0.6°. Upper Saucon has the coldest January nights (20°) and Allentown the hottest July afternoons (87°). Salisbury’s January low is 20° and its July high 86°.

Whitehall: January low 20°, July high 86°Hanover: January low 20°, July high 86°Coopersburg: January low 20°, July high 85°Springfield: January low 20°, July high 85°Lower Saucon: January low 20°, July high 86°Lower Milford: January low 20°, July high 85°Hanover: January low 20°, July high 86°Hellertown: January low 20°, July high 86°Bethlehem: January low 20°, July high 86°Freemansburg: January low 20°, July high 86°Macungie: January low 21°, July high 86°Hereford: January low 21°, July high 86°North Whitehall: January low 20°, July high 86°Upper Macungie: January low 21°, July high 87°Allentown: January low 20°, July high 87°Fountain Hill: January low 20°, July high 86°Upper Saucon: January low 20°, July high 85°Emmaus: January low 20°, July high 85°Bethlehem: January low 20°, July high 86°Upper Milford: January low 20°, July high 85°South Whitehall: January low 20°, July high 87°Lower Macungie: January low 21°, July high 86°Salisbury: January low 20°, July high 86° SalisburyAllentownFountain HillUpper SauconEmmausBethlehemUpper MilfordSouth WhitehallLower Macungie
ColderMilder20° to 21°
Upper Saucon20.1° −0.1°
Bethlehem20.1° −0.1°
Salisbury20.2°
Fountain Hill20.2° same
Emmaus20.3° +0.1°
Upper Milford20.3° +0.1°
Allentown20.4° +0.2°
South Whitehall20.4° +0.2°
Lower Macungie20.7° +0.5°

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

Compared with other towns

How Salisbury compares

Summer heat86° July high
Hotter than 60% of U.S. towns313th hottest of 3,547 Pennsylvania towns
Winter cold20° January low
Milder than 55% of U.S. towns1552nd mildest of 3,547 Pennsylvania towns
Precipitation48" a year
Wetter than 81% of U.S. towns624th wettest of 3,547 Pennsylvania towns
Snow33" a winter
Snowier than 61% of U.S. towns1723rd snowiest of 3,541 Pennsylvania towns
Growing season184 frost-free days
Longer than 57% of U.S. towns1019th 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

+2.1°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Salisbury averaged 2.1° warmer than the 1900s. The biggest change is in December (+3.8°). The shift is larger than in 96% of U.S. towns.

❄️ Winter+3.1° now 32°, was 29°
🌷 Spring+1.9° now 51°, was 49°
☀️ Summer+1.8° now 72°, was 71°
🍂 Fall+1.8° now 54°, was 52°

Change by month1991–2020 average minus 1901–2000 average, at Salisbury’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 6°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Salisbury’s climate

What is the coldest month in Salisbury?

January, with a typical high of 39° and a low of 20°.

What is the hottest month in Salisbury?

July, with a typical high of 86° and a low of 63°. About 18 days a year reach 90°.

How much snow does Salisbury get?

About 33 inches in a normal winter, most of it in February.

When is the first frost in Salisbury?

In half of years the first 32° night comes by October 24, and the last spring frost by April 20.

What is the rainiest month in Salisbury?

July, with 5.0 inches of rain and melted snow. The year totals 48 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Salisbury itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Allentown Intl Airport, PA (4 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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