Best year time to visit New Castle

General weather information about New Castle

Average annual temperature is 15.4 °C

Absolute maximum temperature: 35.3 °C

Absolute minimum temperature: -6.4 °C

Number of sunny days: 178 days

Number of rainy days: 187 days

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

New Castle air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.826.326.830.330.332.135.035.334.828.927.920.7
Average daytime temperature (°C)12.015.316.422.023.727.531.930.427.222.715.911.9
Average temperature (°C)6.99.710.215.117.821.025.524.321.016.29.66.7
Average night temperature (°C)3.15.45.29.212.715.720.319.716.111.14.72.8
Absolute minimum temperature (°C)-6.4-6.2-4.51.65.610.616.516.211.94.6-4.9-4.7

New Castle monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.010.912.013.114.114.614.313.512.411.310.39.8
Daylight minimum duration (h)9.010.011.012.013.014.014.012.011.010.09.09.0
Sunshine mean duration (h)5.86.58.29.19.410.212.010.59.89.28.06.4
Precipitation (mm)9759901387815576109611046125
Sunny days15131512141291015212418
Rainy days16151618171822211510613
Snow days000000000000

New Castle - weather forecast by months

New Castle weather in januaryNew Castle weather in februaryNew Castle weather in marchNew Castle weather in aprilNew Castle weather in mayNew Castle weather in juneNew Castle weather in julyNew Castle weather in augustNew Castle weather in septemberNew Castle weather in octoberNew Castle weather in novemberNew Castle weather in december

Best time to visit New Castle:

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

  • July — 12.0(h)

The largest precipitation sum in New Castle is at

  • April — 138(mm)
  • June — 155(mm)
  • December — 125(mm)

    • Weather forecast in the closest to New Castle admin centers

    Weather forecast in the closest towns to New Castle

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    Frequently asked questions

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