The year at a glance
Averages from 30 years of climate history, 1991-2020
| Norwalk | Metric | Osceola |
|---|---|---|
| 204 days | Sunny daysclear or partly cloudy skies | 205 days |
| 37 in | Precipitationper year | 38 in |
| 113 days | Wet daysrain or snow per year | 112 days |
| 35 in | Snowfallper year | 28 in |
| 21 days | Hot daysabove 90 °F | 24 days |
| 131 days | Freezing nightsat or below 32 °F | 147 days |
| 70% | Humidityaverage relative | 70% |
| 51 °F | Average temperatureyear round | 50 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Norwalk high | 31 | 36 | 49 | 62 | 72 | 82 | 86 | 84 | 77 | 64 | 48 | 36 |
| Osceola high | 32 | 37 | 50 | 62 | 72 | 82 | 87 | 85 | 78 | 65 | 50 | 37 |
| Norwalk low | 13 | 18 | 29 | 40 | 52 | 62 | 66 | 64 | 55 | 42 | 30 | 19 |
| Osceola low | 11 | 15 | 26 | 37 | 49 | 60 | 64 | 61 | 51 | 39 | 27 | 17 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Norwalk | 1.2 | 1.5 | 2.6 | 4.2 | 5.4 | 4.9 | 3.6 | 3.7 | 3.4 | 2.8 | 2.0 | 1.6 |
| Osceola | 1.2 | 1.7 | 2.7 | 4.3 | 5.3 | 4.8 | 4.0 | 3.4 | 3.5 | 2.9 | 2.1 | 1.7 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Norwalk | 15 | 13 | 16 | 14 | 16 | 17 | 21 | 21 | 22 | 19 | 16 | 15 |
| Osceola | 15 | 13 | 15 | 14 | 15 | 17 | 21 | 21 | 22 | 19 | 17 | 15 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Norwalk vs another city
- Norwalk vs West Des Moines, IA
- Norwalk vs Des Moines, IA
- Norwalk vs Windsor Heights, IA
- Norwalk vs Clive, IA
- Norwalk vs Indianola, IA
- Norwalk vs Urbandale, IA
- Norwalk vs New York, NY
- Norwalk vs Los Angeles, CA
- Norwalk vs Chicago, IL
- Norwalk vs Houston, TX
- Norwalk vs Phoenix, AZ
- Norwalk vs Philadelphia, PA
Osceola vs another city
- Osceola vs Winterset, IA
- Osceola vs Indianola, IA
- Osceola vs Creston, IA
- Osceola vs West Des Moines, IA
- Osceola vs Des Moines, IA
- Osceola vs New York, NY
- Osceola vs Los Angeles, CA
- Osceola vs Chicago, IL
- Osceola vs Houston, TX
- Osceola vs Phoenix, AZ
- Osceola vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).