ClimateForecastMayJune >>

Climate in New Castle (Pennsylvania), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Forecast for New Castle (PA)

Thu   May 09
15°C | 10°C
NE 14 km/h
19 mm
broken clouds and rain

broken clouds and rain

Fri   May 10
14°C | 7°C
N 18 km/h
3.5 mm
broken clouds and rain

broken clouds and rain

Sat   May 11
15°C | 4°C
S 14 km/h
7.1 mm
broken clouds and rain

broken clouds and rain

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:

  • When is summer in New Castle?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in New Castle?
    July has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in New Castle?
    The coldest month is February with an average maximum temperature of 2°C.
  • Which is the wettest month in New Castle?
    June tops the wettest month list with 122 mm of rainfall.
  • Which is the driest month in New Castle?
    November is the driest month with 62 mm of precipitation.
  • Which is the sunniest month in New Castle?
    July is the sunniest month with an average of 255 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.