New Castle Northwest, PA Weather


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The most pleasant months of the year for New Castle Northwest are June, September and August. In New Castle Northwest, there are 5 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for New Castle Northwest with an average high temperature of 82.7°, which ranks it as cooler than most places in Pennsylvania. January is the snowiest month in New Castle Northwest with 11.5 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though it is still relatively mild compared to many other places.

Today's Weather - New Castle Northwest, PA

11 PM PST

Scattered Rain Showers

49°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightScattered Rain Showers47° / 54°W 7 mph
Wednesday NightPartly Cloudy then Widespread Frost31° / 60°N 2 to 9 mph
Thursday NightMostly Clear36° / 71°NE 6 mph
Friday NightRain Showers Likely50° / 72°SE 15 mph
Saturday NightChance Showers And Thunderstorms60° / 82°S 17 mph
Sunday NightChance Showers And Thunderstorms61° / 80°SW 10 to 15 mph
Monday NightShowers And Thunderstorms Likely60° / 74°SW 12 to 16 mph

Weather Highlights

Summer High: the July high is around 83 degrees
Winter Low: the January low is 18
Rain: averages 42 inches of rain a year
Snow: averages 37 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the New Castle Northwest area is 9 (10=best), which means it is more comfortable than most places in Pennsylvania.

9 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January35° 18°
February38° 19°
March48° 26°
April61° 36°
May70° 46°
June79° 55°
July83° 59°
August82° 58°
September75° 51°
October63° 40°
November51° 32°
December39° 23°
Hot, Freezing, Rainy, Snowy Days: New Castle Northwest
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January027159
February025126
March023134
April012141
May02140
June10130
July30120
August30100
September10110
October06120
November016132
December025156

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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