The year at a glance
Averages from 30 years of climate history, 1991-2020
| Imperial | Metric | Mehlville |
|---|---|---|
| 203 days | Sunny daysclear or partly cloudy skies | 203 days |
| 41 in | Precipitationper year | 42 in |
| 119 days | Wet daysrain or snow per year | 119 days |
| 10 in | Snowfallper year | 12 in |
| 38 days | Hot daysabove 90 °F | 44 days |
| 103 days | Freezing nightsat or below 32 °F | 91 days |
| 68% | Humidityaverage relative | 68% |
| 56 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Imperial high | 41 | 46 | 56 | 68 | 76 | 85 | 88 | 87 | 81 | 70 | 56 | 45 |
| Mehlville high | 40 | 46 | 56 | 68 | 77 | 85 | 89 | 88 | 81 | 69 | 56 | 45 |
| Imperial low | 22 | 25 | 34 | 44 | 54 | 63 | 67 | 66 | 57 | 46 | 35 | 26 |
| Mehlville low | 23 | 27 | 36 | 46 | 57 | 66 | 70 | 67 | 59 | 47 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Imperial | 2.8 | 2.5 | 3.8 | 4.6 | 4.8 | 3.8 | 3.4 | 2.8 | 3.2 | 3.4 | 3.5 | 2.7 |
| Mehlville | 2.8 | 2.5 | 3.8 | 4.7 | 5.0 | 4.1 | 3.4 | 2.9 | 3.2 | 3.5 | 3.7 | 2.7 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Imperial | 15 | 13 | 15 | 15 | 16 | 18 | 20 | 21 | 20 | 20 | 17 | 14 |
| Mehlville | 14 | 13 | 15 | 15 | 16 | 18 | 21 | 22 | 21 | 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.
Imperial vs another city
- Imperial vs Barnhart, MO
- Imperial vs Pevely, MO
- Imperial vs Arnold, MO
- Imperial vs Oakville, MO
- Imperial vs Festus, MO
- Imperial vs New York, NY
- Imperial vs Los Angeles, CA
- Imperial vs Chicago, IL
- Imperial vs Houston, TX
- Imperial vs Phoenix, AZ
- Imperial vs Philadelphia, PA
Mehlville vs another city
- Mehlville vs Concord, MO
- Mehlville vs Lemay, MO
- Mehlville vs Affton, MO
- Mehlville vs Sappington, MO
- Mehlville vs Oakville, MO
- Mehlville vs Crestwood, MO
- Mehlville vs New York, NY
- Mehlville vs Los Angeles, CA
- Mehlville vs Chicago, IL
- Mehlville vs Houston, TX
- Mehlville vs Phoenix, AZ
- Mehlville 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).