Granite City and Pontoon Beach have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Granite City | Metric | Pontoon Beach |
|---|---|---|
| 201 days | Sunny daysclear or partly cloudy skies | 201 days |
| 42 in | Precipitationper year | 43 in |
| 118 days | Wet daysrain or snow per year | 119 days |
| 13 in | Snowfallper year | 12 in |
| 39 days | Hot daysabove 90 °F | 37 days |
| 88 days | Freezing nightsat or below 32 °F | 95 days |
| 67% | Humidityaverage relative | 67% |
| 57 °F | Average temperatureyear round | 56 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Granite City high | 40 | 45 | 55 | 67 | 76 | 85 | 89 | 87 | 81 | 69 | 55 | 44 |
| Pontoon Beach high | 40 | 45 | 55 | 67 | 76 | 85 | 88 | 87 | 80 | 69 | 55 | 44 |
| Granite City low | 23 | 27 | 36 | 46 | 57 | 66 | 70 | 68 | 60 | 48 | 37 | 28 |
| Pontoon Beach low | 23 | 26 | 35 | 45 | 56 | 65 | 69 | 67 | 59 | 47 | 36 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Granite City | 2.8 | 2.5 | 3.7 | 4.6 | 5.0 | 4.2 | 3.4 | 2.9 | 3.3 | 3.4 | 3.6 | 2.6 |
| Pontoon Beach | 2.9 | 2.5 | 3.7 | 4.7 | 5.2 | 4.2 | 3.3 | 3.0 | 3.2 | 3.5 | 3.7 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Granite City | 14 | 12 | 15 | 15 | 16 | 17 | 21 | 22 | 21 | 19 | 16 | 14 |
| Pontoon Beach | 14 | 12 | 15 | 15 | 16 | 17 | 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.
Granite City vs another city
- Granite City vs Glasgow Village, MO
- Granite City vs Bellefontaine Neighbors, MO
- Granite City vs Spanish Lake, MO
- Granite City vs Collinsville, IL
- Granite City vs Jennings, MO
- Granite City vs New York, NY
- Granite City vs Los Angeles, CA
- Granite City vs Chicago, IL
- Granite City vs Houston, TX
- Granite City vs Phoenix, AZ
- Granite City vs Philadelphia, PA
Pontoon Beach vs another city
- Pontoon Beach vs Collinsville, IL
- Pontoon Beach vs Glen Carbon, IL
- Pontoon Beach vs Maryville, IL
- Pontoon Beach vs Edwardsville, IL
- Pontoon Beach vs Glasgow Village, MO
- Pontoon Beach vs New York, NY
- Pontoon Beach vs Los Angeles, CA
- Pontoon Beach vs Chicago, IL
- Pontoon Beach vs Houston, TX
- Pontoon Beach vs Phoenix, AZ
- Pontoon Beach 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).