Affton and Sunset Hills have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Affton | Metric | Sunset Hills |
|---|---|---|
| 203 days | Sunny daysclear or partly cloudy skies | 203 days |
| 42 in | Precipitationper year | 42 in |
| 119 days | Wet daysrain or snow per year | 119 days |
| 12 in | Snowfallper year | 11 in |
| 44 days | Hot daysabove 90 °F | 42 days |
| 89 days | Freezing nightsat or below 32 °F | 92 days |
| 68% | Humidityaverage relative | 68% |
| 57 °F | Average temperatureyear round | 57 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Affton high | 41 | 46 | 56 | 68 | 77 | 85 | 89 | 88 | 81 | 70 | 56 | 45 |
| Sunset Hills high | 40 | 46 | 56 | 67 | 77 | 85 | 89 | 88 | 81 | 70 | 56 | 45 |
| Affton low | 24 | 27 | 36 | 47 | 57 | 66 | 70 | 68 | 60 | 48 | 37 | 29 |
| Sunset Hills low | 23 | 27 | 36 | 47 | 57 | 66 | 70 | 68 | 60 | 48 | 37 | 28 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Affton | 2.8 | 2.5 | 3.8 | 4.7 | 5.0 | 4.1 | 3.4 | 2.9 | 3.2 | 3.5 | 3.7 | 2.7 |
| Sunset Hills | 2.8 | 2.5 | 3.8 | 4.6 | 4.9 | 4.0 | 3.4 | 3.0 | 3.2 | 3.5 | 3.6 | 2.6 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Affton | 14 | 13 | 15 | 15 | 16 | 18 | 21 | 22 | 21 | 20 | 16 | 14 |
| Sunset Hills | 14 | 13 | 15 | 15 | 16 | 18 | 20 | 22 | 20 | 20 | 16 | 14 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Affton vs another city
- Affton vs Lemay, MO
- Affton vs Shrewsbury, MO
- Affton vs Crestwood, MO
- Affton vs Webster Groves, MO
- Affton vs Concord, MO
- Affton vs Sappington, MO
- Affton vs New York, NY
- Affton vs Los Angeles, CA
- Affton vs Chicago, IL
- Affton vs Houston, TX
- Affton vs Phoenix, AZ
- Affton vs Philadelphia, PA
Sunset Hills vs another city
- Sunset Hills vs Sappington, MO
- Sunset Hills vs Crestwood, MO
- Sunset Hills vs Kirkwood, MO
- Sunset Hills vs Concord, MO
- Sunset Hills vs Glendale, MO
- Sunset Hills vs New York, NY
- Sunset Hills vs Los Angeles, CA
- Sunset Hills vs Chicago, IL
- Sunset Hills vs Houston, TX
- Sunset Hills vs Phoenix, AZ
- Sunset Hills 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).