New Castle (DE) Weather and Climate: A Comprehensive Guide
New Castle experiences great temperature shifts.
The city's weather can transition from very warm days
to cold weather.
It also has a relatively rain/snowy climate with high levels of precipitation.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
The climate in New Castle is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 31°C in July to a chilly 5°C in February.
Nighttime temperatures can drop, with average lows reaching -4°C in February. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
New Castle has a notably wet climate with abundant precipitation, recording 1233 mm of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 145 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 75 mm of rainfall.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In New Castle, summer days are longer and more sunny, with daily sunshine hours peaking at 9.2 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in New Castle.
The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 61%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
almost clear and no rain clear and no rain partly cloudy and no rainForecast for New Castle (DE)
8 m/s
6 m/s
3 m/s
The best time of year to visit New Castle in the United States of America
During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
The hottest season / summer takes place in June, July, August and September.
July has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 5°C.
June tops the wettest month list with 145 mm of rainfall.
November is the driest month with 75 mm of precipitation.
July is the sunniest month with an average of 275 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
