Fontana-on-Geneva Lake, WI
Climate overview — based on NOAA 1991-2020 normals from DELAVAN WWTP, WI US.
Year-round temperatures (°F)
Climate summary
Fontana-on-Geneva Lake has an annual average temperature of 47.6°F with about 36.7 inches of precipitation per year. The warmest month is July (average high 82.9°F), and the coldest is January (average low 13.4°F). June is typically the wettest month (4.96 in) and January the driest (1.56 in).
Best time to visit Fontana-on-Geneva Lake
Full guide →Climate change signal
All-time records →270 of 366 (73.8%) of Fontana-on-Geneva Lake's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 2010s | 188 | |
| 2020s | 178 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 29.2°F | 13.4°F | 21.3°F | 1.56 in | — | — |
| February | 32.6°F | 16.0°F | 24.3°F | 1.67 in | — | — |
| March | 43.7°F | 24.9°F | 34.3°F | 1.97 in | — | — |
| April | 57.0°F | 35.7°F | 46.4°F | 3.66 in | — | — |
| May | 68.8°F | 46.9°F | 57.9°F | 4.19 in | — | — |
| June | 79.0°F | 56.8°F | 67.9°F | 4.96 in | — | — |
| July | 82.9°F | 60.8°F | 71.9°F | 3.79 in | — | — |
| August | 81.1°F | 58.9°F | 70.0°F | 3.87 in | — | — |
| September | 74.2°F | 51.2°F | 62.7°F | 3.74 in | — | — |
| October | 60.8°F | 39.5°F | 50.2°F | 2.89 in | — | — |
| November | 46.2°F | 28.9°F | 37.6°F | 2.61 in | — | — |
| December | 34.5°F | 19.6°F | 27.1°F | 1.83 in | — | — |
Climate twins of Fontana-on-Geneva Lake
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).