The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: New Castle, PA vs Irwin, PA

2025 Compare Climate & Weather:
New Castle, PA vs Irwin, PA

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Highlights

On average, there are 163 sunny days per year in Irwin. New Castle averages 161 sunny days per year. The US average is 205 sunny days.

Irwin, Pennsylvania gets 40.3 inches of rain, on average, per year. New Castle, Pennsylvania gets 41.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Irwin averages 26.1 inches of snow per year. New Castle averages 35.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Irwin, Pennsylvania
Summer High: the July high is around 83.8 degrees
Winter Low: the January low is 20.4
Rain: averages 40.3 inches of rain a year
Snow: averages 26.1 inches of snow a year

New Castle, Pennsylvania
Summer High: the July high is around 82.8 degrees
Winter Low: the January low is 17.9
Rain: averages 41.4 inches of rain a year
Snow: averages 35.4 inches of snow a year

BestPlaces Comfort Index
Irwin

The annual BestPlaces Comfort Index for Irwin borough is 7.0 (10=best), which means it is more comfortable than most places in Pennsylvania.

7 / 10
August, June and September are the most pleasant months in Irwin borough, while January and February are the least comfortable months.

New Castle

The annual BestPlaces Comfort Index for New Castle is 6.8 (10=best), which means it is less comfortable than most places in Pennsylvania.

6.8 / 10
August, June and July are the most pleasant months in New Castle, while January and December are the least comfortable months.

Average Monthly High / Low (°F)
MonthNew Castle, PAIrwin, PA
January35° / 18°38° / 20°
February38° / 19°41° / 22°
March48° / 26°51° / 28°
April61° / 36°63° / 38°
May71° / 46°72° / 47°
June79° / 55°80° / 56°
July83° / 59°84° / 61°
August82° / 58°83° / 60°
September75° / 51°76° / 52°
October63° / 40°64° / 41°
November51° / 32°53° / 33°
December39° / 23°41° / 24°
Hot, Freezing, Rainy, Snowy Days: New Castle / Irwin
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 027 / 2615 / 149 / 6
February0 / 025 / 2412 / 126 / 5
March0 / 023 / 2013 / 124 / 2
April0 / 012 / 814 / 131 / 0
May0 / 02 / 114 / 130 / 0
June2 / 10 / 013 / 120 / 0
July3 / 40 / 011 / 110 / 0
August3 / 30 / 010 / 90 / 0
September1 / 10 / 011 / 100 / 0
October0 / 06 / 512 / 100 / 0
November0 / 016 / 1513 / 122 / 1
December0 / 025 / 2515 / 136 / 4
July is the hottest month for New Castle with an average high temperature of 82.8°, which ranks it as about average compared to other places in Pennsylvania. In New Castle, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for New Castle are June, September and August.

July is the hottest month for Irwin borough with an average high temperature of 83.8°, which ranks it as about average compared to other places in Pennsylvania. In Irwin borough, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Irwin borough are June, September and August.
January has the coldest nighttime temperatures for New Castle with an average of 17.9°. This is colder than most places in Pennsylvania.

January has the coldest nighttime temperatures for Irwin borough with an average of 20.4°. This is warmer than most places in Pennsylvania.

In New Castle, there are 8.6 days annually when the high temperature is over 90°, which is about average compared to other places in Pennsylvania.

In Irwin borough, there are 9.6 days annually when the high temperature is over 90°, which is about average compared to other places in Pennsylvania.

In New Castle, there are 134.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Pennsylvania.

In Irwin borough, there are 124.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Pennsylvania.

In New Castle, there are 5.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Pennsylvania.

In Irwin borough, there are 2.4 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Pennsylvania.

July is the wettest month in New Castle with 4.5 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 41.4 inches in New Castle means that it is drier than most places in Pennsylvania.


May is the wettest month in Irwin borough with 4.2 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Autumn with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 40.3 inches in Irwin borough means that it is drier than most places in Pennsylvania.

January is the rainiest month in New Castle with 15.1 days of rain, and August is the driest month with only 10.2 rainy days. There are 152.9 rainy days annually in New Castle, which is rainier than most places in Pennsylvania. The rainiest season is Spring when it rains 27% of the time and the driest is Autumn with only a 22% chance of a rainy day.

January is the rainiest month in Irwin borough with 13.5 days of rain, and August is the driest month with only 9.4 rainy days. There are 142.0 rainy days annually in Irwin borough, which is rainier than most places in Pennsylvania. The rainiest season is Summer when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 35.4 inches in New Castle means that it is snowier than most places in Pennsylvania.

An annual snowfall of 26.1 inches in Irwin borough means that it is less snowy than most places in Pennsylvania.
January is the snowiest month in New Castle with 11.1 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Irwin borough with 9.3 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 New Castle    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 New Castle

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Reviews for Irwin    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 Irwin

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