Best year time to visit Riley

General weather information about Riley

Average annual temperature is 10.4 °C

Absolute maximum temperature: 33.2 °C

Absolute minimum temperature: -22.8 °C

Number of sunny days: 159 days

Number of rainy days: 183 days

Number of snow days: 23 days

Look at detailed online map of Riley

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

Riley air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.012.017.126.932.233.232.631.532.029.116.513.9
Average daytime temperature (°C)2.64.56.615.922.127.427.625.823.216.18.76.5
Average temperature (°C)-0.4-0.81.69.314.920.622.020.218.011.63.93.2
Average night temperature (°C)-2.9-4.7-2.14.18.314.516.815.313.68.20.11.1
Absolute minimum temperature (°C)-22.8-17.2-9.4-4.51.59.211.48.27.1-0.9-7.9-5.2

Riley 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)9.410.511.913.414.615.315.013.912.511.09.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)3.06.56.49.010.311.411.610.38.06.16.43.4
Precipitation (mm)6389106842447201203491184961
Sunny days913111222169151381813
Rainy days1511161791422161722915
Snow days744100000133

Riley - weather forecast by months

Riley weather in januaryRiley weather in februaryRiley weather in marchRiley weather in aprilRiley weather in mayRiley weather in juneRiley weather in julyRiley weather in augustRiley weather in septemberRiley weather in octoberRiley weather in novemberRiley weather in december

Best time to visit Riley:

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

  • May — 10.3(h)
  • June — 11.4(h)
  • July — 11.6(h)
  • August — 10.3(h)

Months with the longest average daylight duration in Riley:

  • June — 15.3(h)

The largest precipitation sum in Riley is at

  • July — 201(mm)
  • August — 203(mm)
  • October — 118(mm)

    • Weather forecast in the closest to Riley admin centers

    Weather forecast in the closest towns to Riley

    Explore Riley

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    MapTrains schedule
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    Frequently asked questions

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