New Castle, DE Weather


Reviews



Download our custom City Report to see exclusive
data on cost of living, crime, climate, and more.

The most pleasant months of the year for New Castle are September, May and June. In New Castle, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for New Castle with an average high temperature of 86.9°, which ranks it as warmer than most places in Delaware. January is the snowiest month in New Castle with 4.8 inches of snow, and 4 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - New Castle, DE

2 PM PST

Partly Sunny

55°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonPartly Sunny56° / 36°E 5 mph
FridayAreas Of Frost then Sunny61° / 42°E 5 to 10 mph
SaturdayPartly Sunny60° / 50°SE 5 to 10 mph
SundayMostly Sunny76° / 59°SW 5 to 10 mph
MondayMostly Sunny85° / 62°W 5 to 10 mph
TuesdayMostly Sunny then Chance Showers And Thunderstorms81° / 60°S 5 to 15 mph
WednesdayMostly Sunny then Slight Chance Rain Showers78° / 58°W 10 mph

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 24
Rain: averages 45 inches of rain a year
Snow: averages 12 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the New Castle area is 8.4 (10=best), which means it is more comfortable than most places in Delaware.

8.4 / 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
January41° 24°
February44° 26°
March53° 33°
April65° 42°
May74° 52°
June83° 62°
July87° 66°
August85° 65°
September78° 57°
October67° 45°
November56° 36°
December45° 28°
Hot, Freezing, Rainy, Snowy Days: New Castle
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02592
February02282
March015101
April03110
May10110
June5090
July8090
August5080
September1080
October0280
November01090
December02291

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.

Schools
Compare New Castle, DE
cost of living
Compare food, housing, utilities, and more in New Castle, Delaware to any other city in the US.