Best year time to visit Decatur

General weather information about Decatur

Average annual temperature is 8.7 °C

Absolute maximum temperature: 30.0 °C

Absolute minimum temperature: -29.6 °C

Number of sunny days: 106 days

Number of rainy days: 216 days

Number of snow days: 43 days

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

Decatur air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.413.812.526.728.230.029.226.229.028.014.910.8
Average daytime temperature (°C)2.93.84.715.118.721.825.922.920.415.56.24.9
Average temperature (°C)-0.4-2.0-0.48.612.216.720.818.215.911.11.81.4
Average night temperature (°C)-3.8-6.9-4.33.56.412.616.814.612.57.4-1.6-1.1
Absolute minimum temperature (°C)-11.9-29.6-10.1-5.7-1.07.311.89.57.30.0-7.2-8.7

Decatur monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.510.611.913.414.615.315.013.912.511.19.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)3.05.66.08.712.110.111.39.88.36.56.03.0
Precipitation (mm)96681139053126239197785872150
Sunny days5861019647131198
Rainy days161013201224272417201716
Snow days101012000000047

Decatur - weather forecast by months

Decatur weather in januaryDecatur weather in februaryDecatur weather in marchDecatur weather in aprilDecatur weather in mayDecatur weather in juneDecatur weather in julyDecatur weather in augustDecatur weather in septemberDecatur weather in octoberDecatur weather in novemberDecatur weather in december

Best time to visit Decatur:

The best time to visit Decatur during the most sunny months:

  • May — 12.1(h)
  • June — 10.1(h)
  • July — 11.3(h)
  • August — 9.8(h)

Months with the longest average daylight duration in Decatur:

  • June — 15.3(h)

The largest precipitation sum in Decatur is at

  • July — 239(mm)
  • August — 197(mm)
  • December — 150(mm)

    • Weather forecast in the closest to Decatur admin centers

    Weather forecast in the closest towns to Decatur

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    Frequently asked questions

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