The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Willow Grove, PA vs Northbrook, IL

2025 Compare Climate & Weather:
Willow Grove, PA vs Northbrook, IL

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Highlights

On average, there are 188 sunny days per year in Northbrook. Willow Grove averages 203 sunny days per year. The US average is 205 sunny days.

Northbrook, Illinois gets 36.3 inches of rain, on average, per year. Willow Grove, Pennsylvania gets 47.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Northbrook averages 36 inches of snow per year. Willow Grove averages 17.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Northbrook, Illinois
Summer High: the July high is around 83.1 degrees
Winter Low: the January low is 16.7
Rain: averages 36.3 inches of rain a year
Snow: averages 36 inches of snow a year

Willow Grove, Pennsylvania
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 24.1
Rain: averages 47.8 inches of rain a year
Snow: averages 17.4 inches of snow a year

BestPlaces Comfort Index
Northbrook

The annual BestPlaces Comfort Index for Northbrook is 6.9 (10=best), which means it is less comfortable than most places in Illinois.

6.9 / 10
June, September and August are the most pleasant months in Northbrook, while January and December are the least comfortable months.

Willow Grove

The annual BestPlaces Comfort Index for Willow Grove is 7.3 (10=best), which means it is one of the most pleasant places in Pennsylvania.

7.3 / 10
September, June and May are the most pleasant months in Willow Grove, while January and February are the least comfortable months.

Average Monthly High / Low (°F)
MonthWillow Grove, PANorthbrook, IL
January39° / 24°32° / 17°
February42° / 26°36° / 20°
March51° / 33°46° / 29°
April62° / 43°58° / 38°
May72° / 52°69° / 48°
June81° / 61°79° / 58°
July85° / 66°83° / 64°
August83° / 65°82° / 63°
September76° / 57°75° / 55°
October65° / 45°62° / 43°
November55° / 37°49° / 33°
December43° / 29°36° / 21°
Hot, Freezing, Rainy, Snowy Days: Willow Grove / Northbrook
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 024 / 2810 / 103 / 7
February0 / 022 / 249 / 82 / 5
March0 / 014 / 219 / 111 / 4
April0 / 02 / 711 / 120 / 1
May1 / 10 / 011 / 120 / 0
June3 / 30 / 09 / 100 / 0
July7 / 50 / 09 / 100 / 0
August4 / 40 / 08 / 100 / 0
September1 / 10 / 08 / 100 / 0
October0 / 01 / 38 / 100 / 0
November0 / 09 / 149 / 110 / 2
December0 / 021 / 269 / 111 / 6
July is the hottest month for Willow Grove with an average high temperature of 85.3°, which ranks it as warmer than most places in Pennsylvania. In Willow Grove, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Willow Grove are September, June and August.

July is the hottest month for Northbrook with an average high temperature of 83.1°, which ranks it as one of the coolest places in Illinois. In Northbrook, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Northbrook are June, September and August.
January has the coldest nighttime temperatures for Willow Grove with an average of 24.1°. This is one of the warmest places in Pennsylvania.

January has the coldest nighttime temperatures for Northbrook with an average of 16.7°. This is about average compared to other places in Illinois.

In Willow Grove, there are 15.1 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

In Northbrook, there are 13.8 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Willow Grove, there are 93.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.

In Northbrook, there are 122.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Willow Grove, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.

In Northbrook, there are 6.2 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

July is the wettest month in Willow Grove with 4.9 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 47.8 inches in Willow Grove means that it is one of the wettest places in Pennsylvania.


August is the wettest month in Northbrook with 4.3 inches of rain, and the driest month is February with 1.6 inches. The wettest season is Autumn with 32% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 36.3 inches in Northbrook means that it is one of the driest places in Illinois.

May is the rainiest month in Willow Grove with 10.8 days of rain, and October is the driest month with only 7.6 rainy days. There are 108.9 rainy days annually in Willow Grove, which is one of the least rainy places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

April is the rainiest month in Northbrook with 12.2 days of rain, and February is the driest month with only 8.2 rainy days. There are 125.3 rainy days annually in Northbrook, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 17.4 inches in Willow Grove means that it is one of the least snowy places in Pennsylvania.

An annual snowfall of 36.0 inches in Northbrook means that it is one of the snowiest places in Illinois.
February is the snowiest month in Willow Grove with 6.3 inches of snow, and 5 months of the year have significant snowfall.

January is the snowiest month in Northbrook with 11.3 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Willow Grove    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Willow Grove

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Reviews for Northbrook    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Northbrook

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Zips In Willow Grove, Pennsylvania
19090
Zips In NORTHBROOK, ILLINOIS
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