Best year time to visit South New Castle

General weather information about South New Castle

Average annual temperature is 11.8 °C

Absolute maximum temperature: 33.9 °C

Absolute minimum temperature: -11.4 °C

Number of sunny days: 147 days

Number of rainy days: 203 days

Number of snow days: 15 days

Look at detailed online map of South New Castle

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

South New Castle air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.320.919.327.932.333.932.631.032.428.118.015.4
Average daytime temperature (°C)6.610.39.617.922.325.928.727.124.317.610.68.2
Average temperature (°C)2.63.33.811.015.419.622.721.218.613.05.54.5
Average night temperature (°C)-0.2-1.5-0.35.49.014.117.916.514.09.11.71.7
Absolute minimum temperature (°C)-6.6-11.4-7.1-3.72.19.013.712.58.41.1-7.0-4.6

South 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)2.76.46.18.510.711.111.611.09.06.36.43.4
Precipitation (mm)1327410295481221029927724369
Sunny days811913211551011161810
Rainy days181419171015262119151019
Snow days533000000022

South New Castle - weather forecast by months

South New Castle weather in januarySouth New Castle weather in februarySouth New Castle weather in marchSouth New Castle weather in aprilSouth New Castle weather in maySouth New Castle weather in juneSouth New Castle weather in julySouth New Castle weather in augustSouth New Castle weather in septemberSouth New Castle weather in octoberSouth New Castle weather in novemberSouth New Castle weather in december

Best time to visit South New Castle:

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

  • May — 10.7(h)
  • June — 11.1(h)
  • July — 11.6(h)
  • August — 11.0(h)

The largest precipitation sum in South New Castle is at

  • January — 132(mm)
  • June — 122(mm)

    • Weather forecast in the closest to South New Castle admin centers

    Weather forecast in the closest towns to South New Castle

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    Frequently asked questions

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