New Castle climate

Typical historical weather for New Castle, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for New Castle.

Annual average

6.5°C

across all months

Warmest month

29.2°C

Jul average high

Coolest month

-12.8°C

Dec average low

Annual rainfall

496mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

34.7°C

9 July 2021

Coldest day

-29.4°C

3 December 2020

Wettest day

29.5mm

1 October 2017

Windiest day

4.2m/s

6 March 2017