Best year time to visit Index (historical)

General weather information about Index (historical)

Average annual temperature is 17.8 °C

Absolute maximum temperature: 40.3 °C

Absolute minimum temperature: -3.6 °C

Number of sunny days: 209 days

Number of rainy days: 155 days

Number of snow days: 1 day

Look at detailed online map of Index (historical)

* Weather data for Index (historical) United States is based on climate observations for 2026 year

Index (historical) air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)22.125.026.528.131.638.639.640.337.932.526.618.8
Average daytime temperature (°C)13.415.217.822.027.532.734.334.631.324.516.913.5
Average temperature (°C)8.29.311.815.921.526.328.128.624.918.711.38.3
Average night temperature (°C)4.45.17.311.016.221.023.423.519.414.27.04.3
Absolute minimum temperature (°C)-3.5-3.6-2.65.77.617.519.318.215.91.7-1.2-1.6

Index (historical) 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)10.110.912.013.114.014.514.313.512.411.310.39.8
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.09.09.0
Sunshine mean duration (h)6.16.07.88.711.112.611.311.310.58.17.96.9
Precipitation (mm)105128219128128339261211565549
Sunny days191214171414161722182323
Rainy days121617131716151481377
Snow days000000000001

Index (historical) - weather forecast by months

Index (historical) weather in januaryIndex (historical) weather in februaryIndex (historical) weather in marchIndex (historical) weather in aprilIndex (historical) weather in mayIndex (historical) weather in juneIndex (historical) weather in julyIndex (historical) weather in augustIndex (historical) weather in septemberIndex (historical) weather in octoberIndex (historical) weather in novemberIndex (historical) weather in december

Best time to visit Index (historical):

The best time to visit Index (historical) during the most sunny months:

  • June — 12.6(h)
  • July — 11.3(h)
  • August — 11.3(h)

The largest precipitation sum in Index (historical) is at

  • February — 128(mm)
  • March — 219(mm)
  • April — 128(mm)
  • May — 128(mm)
  • October — 156(mm)

    • Weather forecast in the closest to Index (historical) admin centers

    Weather forecast in the closest towns to Index (historical)

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    Frequently asked questions

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