Climate · Cook

Cook, PA climate

Cook has chilly, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 83°, a January night drops to 20°, and about 48 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
83°
1223rd coolest of 3,547 Pennsylvania towns
January low
20°
1723rd mildest of 3,547 Pennsylvania towns
Rain + melted snow
48 in
610th wettest of 3,547 Pennsylvania towns
Snow a winter
48 in
701st snowiest of 3,541 Pennsylvania towns
A normal year

What a year in Cook feels like

Winter

39° / 22°
Typical high / low · 19 days with an inch or more of snow

Spring

61° / 37°
Typical high / low · Last frost around May 5

Summer

81° / 58°
Typical high / low · 11 days reach 90° in a normal year

Fall

63° / 41°
Typical high / low · First frost around Oct 6
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Cook 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
January37°20°3.7" 14.6"1514 21° – 38°
February40°21°3.2" 10.7"1212 18° – 40°
March49°28°4.0" 9.6"136 31° – 50°
April63°37°4.2" 0.8"131 45° – 55°
May72°47°4.5" 0130 53° – 66°
June79°56°4.8" 0110 63° – 70°
July83°60°4.8" 0110 67° – 76°
August81°58°4.2" 090 66° – 74°
September75°51°4.0" 090 60° – 68°
October64°40°3.4" 0.3"90 49° – 58°
November51°32°3.5" 2.2"122 35° – 48°
December41°25°3.8" 10.0"1310 23° – 44°
Year61°40°48.0"48.2"14044

“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 Cook

Cook gets 48 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 140 days a year. Snow covers the ground about 44 days of the year.

48 in
Rain + melted snow a year
More rain than 81% of U.S. towns
48 in
Snow in a normal winter
More snow than 80% of U.S. towns
44 days
With 1"+ of snow on the ground
More than 62% of U.S. towns

Rain + melted snow by month

Inches of water
4.8"

Snowfall by month

Inches of snow
15"
Frost & the growing season

About 152 frost-free days a year

In half of years the last 32° night comes by May 5 and the first one by October 6. That leaves about 152 frost-free days for gardens, shorter than 79% of U.S. towns.

154
nights at or below 32° in a normal year
8
nights below 0° in a normal year
11
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 Cook

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

91%heating
5,960 heating degree daysMore heating than 55% of U.S. towns
595 cooling degree daysLess cooling than 69% 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 Cook

Cook and its neighbors

Cook borders 5 towns with climate data. January nights across them vary by 4.4°. Jefferson has the coldest January nights (16°) and Ligonier the hottest July afternoons (83°). Cook’s January low is 20° and its July high 83°.

Saltlick: January low 20°, July high 81°Mount Pleasant: January low 21°, July high 83°Middlecreek: January low 18°, July high 79°Seven Springs: January low 16°, July high 76°Milford: January low 18°, July high 80°Somerset: January low 17°, July high 79°Hempfield: January low 21°, July high 83°Derry: January low 21°, July high 83°Latrobe: January low 21°, July high 84°Salem: January low 20°, July high 83°Quemahoning: January low 17°, July high 81°Jenner: January low 18°, July high 81°Fairfield: January low 20°, July high 83°Donegal: January low 19°, July high 81°Jefferson: January low 16°, July high 77°Unity: January low 21°, July high 83°Lincoln: January low 18°, July high 80°Ligonier: January low 20°, July high 83°Cook: January low 20°, July high 83° CookDonegalJeffersonUnityLincolnLigonier
ColderMilder16° to 21°
Jefferson16.3° −3.6°
Lincoln17.7° −2.2°
Donegal18.9° −1.0°
Cook19.9°
Ligonier20.1° +0.2°
Unity20.7° +0.8°

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

Compared with other towns

How Cook compares

Summer heat83° July high
Cooler than 70% of U.S. towns1223rd coolest of 3,547 Pennsylvania towns
Winter cold20° January low
Milder than 53% of U.S. towns1723rd mildest of 3,547 Pennsylvania towns
Precipitation48" a year
Wetter than 81% of U.S. towns610th wettest of 3,547 Pennsylvania towns
Snow48" a winter
Snowier than 80% of U.S. towns701st snowiest of 3,541 Pennsylvania towns
Growing season152 frost-free days
Shorter than 79% of U.S. towns385th 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

+0.8°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Cook averaged 0.8° warmer than the 1900s. The biggest change is in December (+2.2°). The shift is smaller than in 83% of U.S. towns.

❄️ Winter+1.6° now 31°, was 29°
🌷 Spring+0.9° now 49°, was 48°
☀️ Summer+0.1° now 69°, was 69°
🍂 Fall+0.6° now 52°, was 52°

Change by month1991–2020 average minus 1901–2000 average, at Cook’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 18° to 40°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Cook’s climate

What is the coldest month in Cook?

January, with a typical high of 37° and a low of 20°.

What is the hottest month in Cook?

July, with a typical high of 83° and a low of 60°. About 11 days a year reach 90°.

How much snow does Cook get?

About 48 inches in a normal winter, most of it in January.

When is the first frost in Cook?

In half of years the first 32° night comes by October 6, and the last spring frost by May 5.

What is the rainiest month in Cook?

June, with 4.8 inches of rain and melted snow. The year totals 48 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Cook itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Derry 4 Sw, PA (10 mi, snow) and Rector 3 Ssw, PA (1 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.

The coffee’s on

Where to, neighbor?

You’re in Cook, PAWestmoreland CountyView boundary

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