When does it first snow in Madison, WI?
First snowfall dates at Madison
| First day with… | Median date | Typical range (10th–90th pct) | Earliest in 30 seasons | Latest in 30 seasons | Seasons with one |
|---|---|---|---|---|---|
| 0.1" of snow or more (measurable) | Nov 12 | Oct 23 – Dec 5 | Oct 17 (2022-23) | Dec 23 (2001-02) | 100% |
| 1" of snow or more | Nov 24 | Nov 8 – Dec 24 | Oct 21 (2006-07) | Jan 3 (1999-00) | 100% |
| 3" of snow or more | Dec 16 | Nov 23 – Jan 18 | Oct 26 (1997-98) | Mar 2 (2001-02) | 100% |
Based on 30 seasons (July–June, 1995-96 to 2024-25) with at least 85% complete daily snowfall records at the station. Dates are for a single day’s snowfall, so "1 inch" means one calendar day with 1" or more, not total accumulation.
Chance the first snow has already happened by a given date
| Snowfall | By Nov 1 | By Dec 1 | By Jan 1 |
|---|---|---|---|
| 0.1"+ (measurable) | 30% | 83% | 100% |
| 1"+ | 10% | 60% | 97% |
In spring, the last measurable snowfall of the season typically falls around Apr 13 (median).
White Christmas odds in Madison
NOAA defines a white Christmas as at least 1 inch of snow on the ground on the morning of December 25. Using the last 30 years of daily snow-depth records (1995–2024) at this station, Madison had that in 63% of years, at least 3 inches in 40%, and at least 6 inches in 20%. The average depth on Dec 25 was 3.3 inches and the deepest was 15 inches. New snow was falling (0.1" or more) on Christmas Day itself in 23% of years. Based on 30 years with a recorded depth on Dec 25.
Share of the last 30 years with 1"+ snow depth within 3 days of each date. Snow cover is most likely around Feb 2 (88%). Red line: Dec 25.
First and last freeze dates in Madison
| Threshold | Event | Median date | Typical range (10th–90th pct) | Earliest / latest | Years with one |
|---|---|---|---|---|---|
| 32°F or colder (freeze) | First in fall | Oct 8 | Sep 29 – Oct 22 | Sep 15 (2007) / Nov 9 (2016) | 100% |
| 32°F or colder (freeze) | Last in spring | May 3 | Apr 23 – May 17 | – | 100% |
| 28°F or colder (hard freeze) | First in fall | Oct 19 | Oct 5 – Nov 3 | Sep 23 (1995) / Nov 26 (2024) | 100% |
| 28°F or colder (hard freeze) | Last in spring | Apr 21 | Apr 7 – May 5 | – | 100% |
Based on the station’s daily minimum temperature, 1995–2024. “Freeze” here means a daily low at or below the threshold, which is not the same as visible frost. Your yard can differ by several degrees and days from an airport weather station, so use these as planning odds, not guarantees.
The median stretch between the last spring freeze and the first fall freeze (the freeze-free season) was about 162 days.
Nearby weather stations
Source station: Madison Dane Co Rgnl Ap (USW00014837), elevation 859 ft. Data: NOAA NCEI GHCN-Daily. Computed by First Snow Dates; how we calculate this. Historical averages only; for a forecast see weather.gov.
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