Best year time to visit City of New Castle

General weather information about City of New Castle

Average annual temperature is 11.7 °C

Absolute maximum temperature: 33.5 °C

Absolute minimum temperature: -11.6 °C

Number of sunny days: 146 days

Number of rainy days: 203 days

Number of snow days: 16 days

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* Weather data for City of New Castle United States is based on climate observations for 2026 year

City of New Castle air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.121.019.228.032.133.532.330.832.427.917.215.3
Average daytime temperature (°C)6.410.29.417.822.325.628.627.024.317.510.48.1
Average temperature (°C)2.43.13.710.915.219.422.521.018.512.85.44.4
Average night temperature (°C)-0.5-1.7-0.45.38.813.917.716.413.89.01.51.6
Absolute minimum temperature (°C)-6.8-11.6-7.1-3.82.08.813.412.38.21.3-7.1-4.7

City of New Castle monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.611.913.314.515.114.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)2.66.36.18.310.710.911.510.99.06.36.43.4
Precipitation (mm)1407412188461131229936805276
Sunny days81191321145811162010
Rainy days17141817101626231915820
Snow days634000000021

City of New Castle - weather forecast by months

City of New Castle weather in januaryCity of New Castle weather in februaryCity of New Castle weather in marchCity of New Castle weather in aprilCity of New Castle weather in mayCity of New Castle weather in juneCity of New Castle weather in julyCity of New Castle weather in augustCity of New Castle weather in septemberCity of New Castle weather in octoberCity of New Castle weather in novemberCity of New Castle weather in december

Best time to visit City of New Castle:

The best time to visit City of New Castle during the most sunny months:

  • May — 10.7(h)
  • June — 10.9(h)
  • July — 11.5(h)
  • August — 10.9(h)

The largest precipitation sum in City of New Castle is at

  • January — 140(mm)
  • March — 121(mm)
  • June — 113(mm)
  • July — 122(mm)

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    Frequently asked questions

    When is the best time to visit City of New Castle?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit City of New Castle.
    What is the weather like in City of New Castle?
    See average temperature, rainfall and daylight hours for City of New Castle by month in the table above.
    How many sunny days does City of New Castle have?
    The monthly weather statistics above show sunshine and rainfall patterns for City of New Castle throughout the year.