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Fond du Lac, Wisconsin climate
Dfa Hot-summer humid continental
Fond du Lac has a strongly seasonal cool-temperate climate (Hot-summer humid continental, Köppen Dfa). The hottest month is July with an average daily high near 28°C, while the coldest is January averaging around −11°C at night. Around 822 mm of precipitation falls each year, peaking in June (114 mm) and easing off in February (32 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsFond du Lac climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −1 | 6 | 13 | 20 | 25 | 28 | 26 | 22 | 15 | 7 | 0 |
| Avg temp (°C) | −7 | −5 | 1 | 8 | 14 | 20 | 23 | 21 | 17 | 10 | 3 | −4 |
| Avg low (°C) | −11 | −10 | −4 | 2 | 9 | 15 | 17 | 16 | 12 | 5 | −1 | −8 |
| Precipitation (mm) | 35 | 32 | 49 | 82 | 91 | 114 | 96 | 89 | 77 | 71 | 49 | 39 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −1 | 6 | 13 | 20 | 25 |
| Avg temp (°C) | −7 | −5 | 1 | 8 | 14 | 20 |
| Avg low (°C) | −11 | −10 | −4 | 2 | 9 | 15 |
| Precipitation (mm) | 35 | 32 | 49 | 82 | 91 | 114 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 26 | 22 | 15 | 7 | 0 |
| Avg temp (°C) | 23 | 21 | 17 | 10 | 3 | −4 |
| Avg low (°C) | 17 | 16 | 12 | 5 | −1 | −8 |
| Precipitation (mm) | 96 | 89 | 77 | 71 | 49 | 39 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 9 | 8 | 11 | 11 | 11 | 10 | 9 | 9 | 10 | 9 | 8 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.6 | 2 | 3 | 0.9 | 0.4 | — | — | — |
| Days with low ≤ 0°C (days) | 27 | 27 | 23 | 10 | 0.7 | — | — | — | — | 5 | 18 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | 3 | 5 | 2 | 1 | — | — | — | — | — | 0.2 | 0.6 | 2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 9 | 8 | 11 | 11 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.6 | 2 |
| Days with low ≤ 0°C (days) | 27 | 27 | 23 | 10 | 0.7 | — |
| Days with snowfall ≥ 2.5 cm (days) | 3 | 5 | 2 | 1 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 9 | 10 | 9 | 8 |
| Days with high ≥ 32°C (days) | 3 | 0.9 | 0.4 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 5 | 18 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | 0.2 | 0.6 | 2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 64 | 65 | 66 | 65 | 60 | 52 | 54 | 53 | 64 | 67 | 67 |
| Clear days (≤ 30% cloud) | 4 | 4 | 5 | 5 | 5 | 6 | 8 | 9 | 9 | 6 | 4 | 5 |
| Partly cloudy days (30–70%) | 11 | 11 | 11 | 9 | 11 | 11 | 14 | 12 | 10 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 16 | 13 | 16 | 16 | 15 | 13 | 10 | 11 | 11 | 16 | 16 | 17 |
| Relative humidity (%) | 91 | 88 | 80 | 76 | 76 | 76 | 74 | 74 | 75 | 77 | 82 | 89 |
| Wind speed (m/s) | 3.9 | 4.1 | 3.9 | 3.8 | 3.3 | 2.8 | 2.6 | 2.5 | 2.9 | 3.3 | 3.4 | 3.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 64 | 65 | 66 | 65 | 60 |
| Clear days (≤ 30% cloud) | 4 | 4 | 5 | 5 | 5 | 6 |
| Partly cloudy days (30–70%) | 11 | 11 | 11 | 9 | 11 | 11 |
| Cloudy days (≥ 70%) | 16 | 13 | 16 | 16 | 15 | 13 |
| Relative humidity (%) | 91 | 88 | 80 | 76 | 76 | 76 |
| Wind speed (m/s) | 3.9 | 4.1 | 3.9 | 3.8 | 3.3 | 2.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 52 | 54 | 53 | 64 | 67 | 67 |
| Clear days (≤ 30% cloud) | 8 | 9 | 9 | 6 | 4 | 5 |
| Partly cloudy days (30–70%) | 14 | 12 | 10 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 10 | 11 | 11 | 16 | 16 | 17 |
| Relative humidity (%) | 74 | 74 | 75 | 77 | 82 | 89 |
| Wind speed (m/s) | 2.6 | 2.5 | 2.9 | 3.3 | 3.4 | 3.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Fond DU Lac 1 SW (NOAA GHCN station USC00472842), about 2 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.