Best year time to visit Decorah

General weather information about Decorah

Average annual temperature is 10.5 °C

Absolute maximum temperature: 38.2 °C

Absolute minimum temperature: -25.4 °C

Number of sunny days: 191

Number of rainy days: 142

Number of snow days: 32

Average annual precipitation: 680 mm

Look at detailed online map of Decorah

* Weather data for Decorah United States is based on climate observations for 2023 year

Decorah air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 6.4 8.7 16.8 25.9 31.6 32.6 34 38.2 34.1 29.8 17.4 12.1
Average daytime temperature (°C) -0.6 2.5 6.1 15 23.6 28.3 28.5 28.4 25.2 16 9.1 5.5
Average temperature (°C) -4.4 -3 1.1 8.7 17 22.4 22.8 23 19.7 11.7 4 1.5
Average night temperature (°C) -7.6 -7.3 -3 3.8 11 16.7 17.5 18.3 15.3 8.1 0.4 -1.1
Absolute minimum temperature (°C) -25.4 -24.8 -13.6 -6.5 1.7 9 11.7 12.7 8.3 -5 -13.1 -7.5

Decorah monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 9.9 11.2 12.7 14.1 15.2 15.4 15.3 14.6 13.2 11.8 10.3 9.2
Daylight mean duration (h) 9.4 10.5 11.9 13.4 14.7 15.3 15 13.9 12.5 11 9.7 9
Daylight minimum duration (h) 9 9.9 11.2 12.7 14.1 15.2 14.6 13.3 11.8 10.3 9.3 9
Sunshine mean duration (h) 6.3 7.8 7.3 8.8 11.8 12.3 12.2 11.5 9.6 7.7 7.1 5
Precipitation (mm) 49 43 68 81 57 36 83 39 88 99 7 31
Sunny days 17 15 13 16 21 16 12 12 14 15 23 17
Rainy days 5 8 10 14 10 14 19 19 16 13 6 8
Snow days 9 5 8 3 1 6

Decorah - weather forecast by months

January February March April May June July August September October November December

Best time to visit Decorah:

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

  • May — 11.8(h)
  • June — 12.3(h)
  • July — 12.2(h)
  • August — 11.5(h)

Months with the longest average daylight duration in Decorah:

  • June — 15.3(h)

The largest precipitation sum in Decorah is at

  • April — 81(mm)
  • July — 83(mm)
  • September — 88(mm)
  • October — 99(mm)

Weather forecast in the closest to Decorah admin centers