Florissant and Jerseyville have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Florissant | Metric | Jerseyville |
|---|---|---|
| 201 days | Sunny daysclear or partly cloudy skies | 202 days |
| 42 in | Precipitationper year | 41 in |
| 118 days | Wet daysrain or snow per year | 117 days |
| 15 in | Snowfallper year | 13 in |
| 44 days | Hot daysabove 90 °F | 29 days |
| 88 days | Freezing nightsat or below 32 °F | 117 days |
| 68% | Humidityaverage relative | 69% |
| 57 °F | Average temperatureyear round | 54 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Florissant high | 40 | 46 | 56 | 68 | 77 | 85 | 89 | 88 | 81 | 69 | 55 | 44 |
| Jerseyville high | 36 | 42 | 53 | 65 | 74 | 83 | 87 | 85 | 79 | 67 | 53 | 41 |
| Florissant low | 23 | 27 | 36 | 46 | 57 | 67 | 71 | 69 | 60 | 49 | 37 | 28 |
| Jerseyville low | 19 | 23 | 32 | 42 | 54 | 63 | 66 | 63 | 55 | 43 | 33 | 24 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Florissant | 2.8 | 2.5 | 3.7 | 4.6 | 5.0 | 4.2 | 3.4 | 2.9 | 3.3 | 3.4 | 3.6 | 2.6 |
| Jerseyville | 2.6 | 2.4 | 3.6 | 4.6 | 5.0 | 4.0 | 3.2 | 2.9 | 3.3 | 3.3 | 3.6 | 2.4 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Florissant | 14 | 12 | 15 | 15 | 16 | 17 | 21 | 22 | 21 | 19 | 16 | 14 |
| Jerseyville | 14 | 13 | 15 | 15 | 16 | 17 | 21 | 22 | 21 | 19 | 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.
Florissant vs another city
- Florissant vs Old Jamestown, MO
- Florissant vs Black Jack, MO
- Florissant vs Berkeley, MO
- Florissant vs Hazelwood, MO
- Florissant vs Ferguson, MO
- Florissant vs Bridgeton, MO
- Florissant vs New York, NY
- Florissant vs Los Angeles, CA
- Florissant vs Chicago, IL
- Florissant vs Houston, TX
- Florissant vs Phoenix, AZ
- Florissant vs Philadelphia, PA
Jerseyville vs another city
- Jerseyville vs Godfrey, IL
- Jerseyville vs Alton, IL
- Jerseyville vs Old Jamestown, MO
- Jerseyville vs East Alton, IL
- Jerseyville vs Bethalto, IL
- Jerseyville vs New York, NY
- Jerseyville vs Los Angeles, CA
- Jerseyville vs Chicago, IL
- Jerseyville vs Houston, TX
- Jerseyville vs Phoenix, AZ
- Jerseyville 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).