Ottawa and Spring Valley have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Ottawa | Metric | Spring Valley |
|---|---|---|
| 186 days | Sunny daysclear or partly cloudy skies | 187 days |
| 39 in | Precipitationper year | 38 in |
| 124 days | Wet daysrain or snow per year | 120 days |
| 25 in | Snowfallper year | 28 in |
| 15 days | Hot daysabove 90 °F | 20 days |
| 134 days | Freezing nightsat or below 32 °F | 135 days |
| 70% | Humidityaverage relative | 71% |
| 50 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ottawa high | 31 | 35 | 47 | 61 | 72 | 81 | 83 | 82 | 77 | 64 | 49 | 36 |
| Spring Valley high | 31 | 35 | 48 | 62 | 73 | 82 | 84 | 83 | 77 | 64 | 49 | 36 |
| Ottawa low | 15 | 18 | 28 | 38 | 49 | 59 | 63 | 61 | 53 | 42 | 31 | 21 |
| Spring Valley low | 15 | 18 | 28 | 38 | 50 | 60 | 63 | 61 | 53 | 42 | 30 | 20 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ottawa | 2.2 | 2.0 | 2.8 | 4.3 | 4.8 | 4.4 | 3.8 | 3.5 | 3.1 | 3.1 | 2.7 | 2.2 |
| Spring Valley | 2.0 | 2.0 | 2.8 | 4.3 | 4.6 | 4.5 | 4.0 | 3.4 | 3.0 | 3.0 | 2.6 | 2.1 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ottawa | 12 | 12 | 14 | 13 | 15 | 16 | 20 | 21 | 20 | 17 | 15 | 12 |
| Spring Valley | 12 | 12 | 14 | 14 | 15 | 16 | 20 | 21 | 20 | 17 | 14 | 12 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Ottawa vs another city
- Ottawa vs LaSalle, IL
- Ottawa vs Streator, IL
- Ottawa vs Peru, IL
- Ottawa vs Mendota, IL
- Ottawa vs Lake Holiday, IL
- Ottawa vs New York, NY
- Ottawa vs Los Angeles, CA
- Ottawa vs Chicago, IL
- Ottawa vs Houston, TX
- Ottawa vs Phoenix, AZ
- Ottawa vs Philadelphia, PA
Spring Valley vs another city
- Spring Valley vs Peru, IL
- Spring Valley vs LaSalle, IL
- Spring Valley vs Princeton, IL
- Spring Valley vs Mendota, IL
- Spring Valley vs Streator, IL
- Spring Valley vs New York, NY
- Spring Valley vs Los Angeles, CA
- Spring Valley vs Chicago, IL
- Spring Valley vs Houston, TX
- Spring Valley vs Phoenix, AZ
- Spring Valley 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).