Hot-summer humid continental climate
Climate Decorah - Iowa
Annual high58ºF
Annual low36ºF
Precipitation34.68 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 27 | 9 | 0.89 | 9 |
| Feb | 33 | 13 | 0.89 | 8 |
| Mar | 46 | 25 | 1.91 | 5 |
| Apr | 61 | 36 | 3.61 | 1 |
| May | 72 | 47 | 4.19 | 0 |
| Jun | 81 | 56 | 5.16 | 0 |
| Jul | 84 | 61 | 4.27 | 0 |
| Aug | 82 | 59 | 4.74 | 0 |
| Sep | 75 | 50 | 3.33 | 0 |
| Oct | 62 | 39 | 2.36 | 0 |
| Nov | 46 | 27 | 2.11 | 3 |
| Dec | 30 | 13 | 1.22 | 11 |
- JanHigh 27ºFLow 9ºFPrecip 0.89 inch
- FebHigh 33ºFLow 13ºFPrecip 0.89 inch
- MarHigh 46ºFLow 25ºFPrecip 1.91 inch
- AprHigh 61ºFLow 36ºFPrecip 3.61 inch
- MayHigh 72ºFLow 47ºFPrecip 4.19 inch
- JunHigh 81ºFLow 56ºFPrecip 5.16 inch
- JulHigh 84ºFLow 61ºFPrecip 4.27 inch
- AugHigh 82ºFLow 59ºFPrecip 4.74 inch
- SepHigh 75ºFLow 50ºFPrecip 3.33 inch
- OctHigh 62ºFLow 39ºFPrecip 2.36 inch
- NovHigh 46ºFLow 27ºFPrecip 2.11 inch
- DecHigh 30ºFLow 13ºFPrecip 1.22 inch
Climate summary
What is the average weather in Decorah, Iowa?
Decorah experiences a humid continental climate, marked by very strong seasonal contrasts. Summers are warm and bring the most precipitation, while winters are cold and snowy. Significant snowfall is a notable feature, with winter moisture often arriving as snow. Precipitation is moderate overall, spread relatively evenly throughout the year.
Decorah weather averages
Annual high58ºF
Annual low36ºF
Precipitation34.68 inch
Snowfall37 inch
Daily normals Decorah - Iowa - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 28.5 | 12.8 | 0.04 | 0.04 | 0.20 | 0.20 |
| Jan 2 | 28.3 | 12.6 | 0.07 | 0.07 | 0.50 | 0.50 |
| Jan 3 | 28.2 | 12.3 | 0.11 | 0.11 | 0.70 | 0.70 |
| Jan 4 | 28.1 | 12.1 | 0.15 | 0.15 | 1.00 | 1.00 |
| Jan 5 | 27.9 | 11.8 | 0.19 | 0.19 | 1.30 | 1.30 |
| Jan 6 | 27.8 | 11.6 | 0.22 | 0.22 | 1.50 | 1.50 |
| Jan 7 | 27.7 | 11.4 | 0.26 | 0.26 | 1.80 | 1.80 |
| Jan 8 | 27.6 | 11.2 | 0.29 | 0.29 | 2.10 | 2.10 |
| Jan 9 | 27.5 | 11.0 | 0.32 | 0.32 | 2.30 | 2.30 |
| Jan 10 | 27.4 | 10.8 | 0.35 | 0.35 | 2.60 | 2.60 |
| Jan 11 | 27.4 | 10.6 | 0.39 | 0.39 | 2.90 | 2.90 |
| Jan 12 | 27.3 | 10.4 | 0.42 | 0.42 | 3.30 | 3.30 |
| Jan 13 | 27.3 | 10.3 | 0.45 | 0.45 | 3.60 | 3.60 |
| Jan 14 | 27.3 | 10.1 | 0.48 | 0.48 | 3.90 | 3.90 |
| Jan 15 | 27.2 | 10.0 | 0.51 | 0.51 | 4.30 | 4.30 |
| Jan 16 | 27.2 | 9.9 | 0.54 | 0.54 | 4.60 | 4.60 |
| Jan 17 | 27.2 | 9.8 | 0.57 | 0.57 | 4.90 | 4.90 |
| Jan 18 | 27.3 | 9.7 | 0.60 | 0.60 | 5.30 | 5.30 |
| Jan 19 | 27.3 | 9.6 | 0.63 | 0.63 | 5.70 | 5.70 |
| Jan 20 | 27.3 | 9.5 | 0.66 | 0.66 | 6.10 | 6.10 |
| Jan 21 | 27.4 | 9.5 | 0.69 | 0.69 | 6.40 | 6.40 |
| Jan 22 | 27.4 | 9.4 | 0.72 | 0.72 | 6.80 | 6.80 |
| Jan 23 | 27.5 | 9.4 | 0.75 | 0.75 | 7.20 | 7.20 |
| Jan 24 | 27.6 | 9.4 | 0.79 | 0.79 | 7.60 | 7.60 |
| Jan 25 | 27.7 | 9.4 | 0.82 | 0.82 | 8.00 | 8.00 |
| Jan 26 | 27.8 | 9.5 | 0.85 | 0.85 | 8.40 | 8.40 |
| Jan 27 | 28.0 | 9.5 | 0.88 | 0.88 | 8.80 | 8.80 |
| Jan 28 | 28.1 | 9.6 | 0.91 | 0.91 | 9.10 | 9.10 |
| Jan 29 | 28.3 | 9.7 | 0.95 | 0.95 | 9.50 | 9.50 |
| Jan 30 | 28.4 | 9.8 | 0.98 | 0.98 | 9.90 | 9.90 |
| Jan 31 | 28.6 | 9.9 | 1.01 | 1.01 | 10.30 | 10.30 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Decorah - November 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Nov 1 | 70.0 | 48.9 | 0.00 |
| Nov 2 | 64.0 | 57.9 | 0.48 |
| Nov 3 | 66.9 | 57.9 | 1.19 |
| Nov 4 | 66.0 | 48.9 | 0.05 |
| Nov 5 | 55.0 | 46.0 | 0.04 |
| Nov 6 | 55.0 | 30.9 | 0.00 |
| Nov 7 | 54.0 | 26.1 | 0.00 |
| Nov 8 | 60.1 | 33.1 | 0.00 |
| Nov 9 | 64.9 | 30.0 | 0.00 |
| Nov 10 | 66.0 | 30.0 | 0.00 |
| Nov 11 | – | – | – |
| Nov 12 | – | – | – |
| Nov 13 | – | – | – |
| Nov 14 | – | – | – |
| Nov 15 | – | – | – |
| Nov 16 | – | – | – |
| Nov 17 | – | – | – |
| Nov 18 | – | – | – |
| Nov 19 | – | – | – |
| Nov 20 | – | – | – |
| Nov 21 | – | – | – |
| Nov 22 | – | – | – |
| Nov 23 | – | – | – |
| Nov 24 | – | – | – |
| Nov 25 | – | – | – |
| Nov 26 | – | – | – |
| Nov 27 | – | – | – |
| Nov 28 | – | – | – |
| Nov 29 | – | – | – |
| Nov 30 | – | – | – |
The data for November 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature70.0ºF · Nov 1
- Lowest max temperature54.0ºF · Nov 7
- Highest min temperature57.9ºF · Nov 2
- Lowest min temperature26.1ºF · Nov 7
Geo Decorah - Iowa
Location
- Country
- United States
- State
- Iowa
- County
- Winneshiek
- City
- Decorah
- Zip Code
- 52101
- Elevation
- 1152 ft
- Longitude
- -91.74
- Latitude
- 43.28
- ICAO
- –
- IATA
- –