Lake Geneva weather in April: Lake Geneva, Wisconsin: normal highs, lows, rain and records for April
Lake Geneva in April has a normal high of 59°F and a normal low of 37°F, a daily mean of 48°F, rising from 52°F on the 1st to 66°F by the 30th. Measurable precipitation falls on 13 days in a normal April, 3.45 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 15°C and low of 3°C, 88 mm of precipitation and 7 cm of snow in April.
- NOAA stationLake Geneva Wastewater Treatment Plant
- Station IDUSC00474457
- Location42.60°N 88.43°W
- Elevation846 ft (258 m)
- Population8,691
- Jan 30° 15°
- Feb 35° 17°
- Mar 45° 26°
- Apr 59° 37°
- May 72° 48°
- Jun 81° 58°
- Jul 86° 63°
- Aug 83° 61°
- Sep 76° 54°
- Oct 63° 42°
- Nov 47° 31°
- Dec 35° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lake Geneva in April?
The normal high is 59°F and the normal low 37°F, for a daily mean of 48.1°F. April is 12.4°F warmer than March and 11.9°F cooler than May. April is the 7th warmest month of the year in Lake Geneva and the 5th wettest. Across the month the normal high rises 14°F, from 52°F on April 1 to 66°F on April 30. From one year to the next April's mean temperature typically moves about 3.3°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 45°F and 51°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 43%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 52°F | 32°F | 38% | 20% |
| April 8 | 55°F | 34°F | 40% | 23% |
| April 15 | 59°F | 37°F | 42% | 25% |
| April 22 | 62°F | 40°F | 42% | 26% |
| April 30 | 66°F | 43°F | 43% | 27% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 52°F | 32°F | 38% | 20% | 12 h 40 min |
| April 2 | 52°F | 32°F | 38% | 20% | 12 h 40 min |
| April 3 | 53°F | 32°F | 38% | 20% | 12 h 50 min |
| April 4 | 53°F | 33°F | 39% | 21% | 12 h 50 min |
| April 5 | 54°F | 33°F | 39% | 21% | 12 h 50 min |
| April 6 | 54°F | 33°F | 39% | 22% | 12 h 50 min |
| April 7 | 55°F | 34°F | 40% | 22% | 13 h |
| April 8 | 55°F | 34°F | 40% | 23% | 13 h |
| April 9 | 56°F | 35°F | 40% | 23% | 13 h |
| April 10 | 56°F | 35°F | 41% | 23% | 13 h 10 min |
| April 11 | 57°F | 35°F | 41% | 24% | 13 h 10 min |
| April 12 | 57°F | 36°F | 41% | 24% | 13 h 10 min |
| April 13 | 58°F | 36°F | 41% | 24% | 13 h 10 min |
| April 14 | 58°F | 37°F | 42% | 24% | 13 h 20 min |
| April 15 | 59°F | 37°F | 42% | 25% | 13 h 20 min |
| April 16 | 59°F | 37°F | 42% | 25% | 13 h 20 min |
| April 17 | 60°F | 38°F | 42% | 25% | 13 h 30 min |
| April 18 | 61°F | 38°F | 42% | 25% | 13 h 30 min |
| April 19 | 61°F | 39°F | 42% | 25% | 13 h 30 min |
| April 20 | 62°F | 39°F | 42% | 26% | 13 h 30 min |
| April 21 | 62°F | 39°F | 42% | 26% | 13 h 40 min |
| April 22 | 62°F | 40°F | 42% | 26% | 13 h 40 min |
| April 23 | 63°F | 40°F | 42% | 26% | 13 h 40 min |
| April 24 | 63°F | 41°F | 42% | 26% | 13 h 40 min |
| April 25 | 64°F | 41°F | 42% | 26% | 13 h 50 min |
| April 26 | 64°F | 41°F | 42% | 26% | 13 h 50 min |
| April 27 | 65°F | 42°F | 42% | 26% | 13 h 50 min |
| April 28 | 65°F | 42°F | 42% | 27% | 13 h 50 min |
| April 29 | 66°F | 43°F | 42% | 27% | 14 h |
| April 30 | 66°F | 43°F | 43% | 27% | 14 h |
- Normal high
- 59°FApril average
- Normal low
- 37°FApril average
- Precipitation
- 3.45 inmonth total
- Days with precipitation
- 130.01 inch or more
- Snowfall
- 2.6 inmonth total
- Nights at 32°F or colder
- 9
- Daylight
- 12 h 40 min to 14 hApril 1 to April 30
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00474457; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Lake Geneva in April?
On a given April day the chance of 0.01 inch or more is 41% on average, highest around April 30 (43%). In all, 3.45 in falls on 13 days of a normal April, 1 of them with an inch or more.
In a normal April in Lake Geneva, 9 nights fall to freezing and snowfall averages 2.6 inches.
Snow falls on 2 days in a normal April, and an inch or more covers the ground on 1 day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00474457.
What are the records for April in Lake Geneva?
The warmest April temperature on this station's record (since 1945) is 90°F, on April 22, 1980; the coldest is 9°F, on April 7, 1982. The wettest April brought 10.06 in (2026); the snowiest, 13.9 inches (1982).
The April mean against the 1991-2020 normal of 48.1°F: 2023 47.3°F (−0.8), 2024 47.8°F (−0.3), 2025 45.4°F (−2.7), 2026 51.3°F (+3.2). 1 of 4 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2023 | 47.3°F | −0.8°F | 2.22 in |
| 2024 | 47.8°F | −0.3°F | 5.62 in |
| 2025 | 45.4°F | −2.7°F | 1.76 in |
| 2026 | 51.3°F | +3.2°F | 10.06 in |
Source: records: ACIS, station USC00474457; recent months: ACIS, station USC00474457. Records and recent months use complete months only.
How does April in Lake Geneva compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, April normal highs run from 46°F in Superior to 61°F in Boscobel; Lake Geneva's is 59°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.