Average temperature in New Castle (DE)

The mean minimum and maximum temperatures over the year in New Castle (Delaware), the United States of America.

The months of May, June, August and September have nice average temperatures.
On average, the warmest month(s) are June, July and August.
On average, the warmest month is July with 31°C.
On average, the coolest month is January with 5°C.
The average annual maximum temperature is 18°C.
The average annual minimum temperature is 8°C.

Forecast for New Castle (DE)

Wed May 08

28°C | 17°C

25 km/h

0.5 mm

partly cloudy and small chance of slight rain

hourly forecast

Thu May 09

20°C | 13°C

18 km/h

19 mm

overcast and heavy rain

hourly forecast

Fri May 10

14°C | 10°C

22 km/h

2.2 mm

overcast and rain

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

This site provides you with all the information you need about the climate in New Castle.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.

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