The year at a glance
Averages from 30 years of climate history, 1991-2020
| Colton | Metric | Fontana |
|---|---|---|
| 295 days | Sunny daysclear or partly cloudy skies | 284 days |
| 16 in | Precipitationper year | 11 in |
| 44 days | Wet daysrain or snow per year | 36 days |
| 10 in | Snowfallper year | 0 in |
| 105 days | Hot daysabove 90 °F | 97 days |
| 2 days | Freezing nightsat or below 32 °F | 2 days |
| 56% | Humidityaverage relative | 59% |
| 66 °F | Average temperatureyear round | 67 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Colton high | 69 | 69 | 72 | 76 | 81 | 88 | 95 | 97 | 93 | 83 | 76 | 68 |
| Fontana high | 68 | 69 | 72 | 76 | 80 | 87 | 94 | 95 | 92 | 82 | 75 | 67 |
| Colton low | 43 | 44 | 46 | 49 | 54 | 58 | 63 | 64 | 61 | 54 | 47 | 42 |
| Fontana low | 44 | 46 | 48 | 51 | 55 | 60 | 64 | 65 | 63 | 56 | 48 | 43 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Colton | 2.9 | 3.6 | 2.2 | 1.1 | 0.5 | 0.1 | 0.5 | 0.4 | 0.3 | 0.7 | 1.0 | 2.2 |
| Fontana | 2.2 | 2.6 | 1.6 | 0.7 | 0.4 | 0.1 | 0.1 | 0.0 | 0.1 | 0.5 | 0.7 | 1.6 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Colton | 20 | 17 | 20 | 23 | 26 | 28 | 29 | 30 | 29 | 27 | 25 | 21 |
| Fontana | 19 | 16 | 18 | 21 | 24 | 27 | 29 | 30 | 28 | 26 | 24 | 21 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Colton vs another city
- Colton vs Grand Terrace, CA
- Colton vs Highgrove, CA
- Colton vs Bloomington, CA
- Colton vs Loma Linda, CA
- Colton vs Rialto, CA
- Colton vs San Bernardino, CA
- Colton vs New York, NY
- Colton vs Los Angeles, CA
- Colton vs Chicago, IL
- Colton vs Houston, TX
- Colton vs Phoenix, AZ
- Colton vs Philadelphia, PA
Fontana vs another city
- Fontana vs Rialto, CA
- Fontana vs Bloomington, CA
- Fontana vs Rancho Cucamonga, CA
- Fontana vs Muscoy, CA
- Fontana vs Jurupa Valley, CA
- Fontana vs New York, NY
- Fontana vs Los Angeles, CA
- Fontana vs Chicago, IL
- Fontana vs Houston, TX
- Fontana vs Phoenix, AZ
- Fontana 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).