Saukville, Wisconsin climate: Normal weather by month, frost dates and records
Saukville's normal year runs from 12°F January nights to 79°F July afternoons, with 34.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.2°C, January lows of −11°C, July highs of 26°C, 885 mm of precipitation a year.
- NOAA stationSaukville Wastewater Treatment Plant
- Station IDUSC00477581
- Location43.38°N 87.94°W
- Elevation766 ft (234 m)
- Population4,305
On October 14, the normal high in Saukville is 59°F and the normal low 40°F, and the chance of measurable rain or snow is 35%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Saukville.
- Jan 27° 12°
- Feb 31° 14°
- Mar 41° 23°
- Apr 52° 33°
- May 64° 43°
- Jun 74° 54°
- Jul 79° 59°
- Aug 77° 57°
- Sep 71° 50°
- Oct 58° 39°
- Nov 44° 28°
- Dec 33° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Saukville each month?
July is the warmest month, with normal highs of 79°F; January the coldest, with normal lows of 12°F. The most precipitation falls in June (4.26 in), the least in January (1.50 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 27°F | 12°F | 19.4°F | 1.50 | 9 | <1 | 30 | 9 h 20 min |
| February | 31°F | 14°F | 22.3°F | 1.69 | 9 | <1 | 27 | 10 h 30 min |
| March | 41°F | 23°F | 31.7°F | 2.13 | 8 | <1 | 25 | 11 h 50 min |
| April | 52°F | 33°F | 42.3°F | 3.86 | 12 | <1 | 15 | 13 h 20 min |
| May | 64°F | 43°F | 53.7°F | 3.82 | 13 | <1 | 2 | 14 h 40 min |
| June | 74°F | 54°F | 63.6°F | 4.26 | 11 | 1 | <1 | 15 h 20 min |
| July | 79°F | 59°F | 68.7°F | 3.25 | 9 | 2 | <1 | 15 h 10 min |
| August | 77°F | 57°F | 67.1°F | 3.95 | 9 | 1 | <1 | 14 h |
| September | 71°F | 50°F | 60.4°F | 3.28 | 10 | <1 | <1 | 12 h 30 min |
| October | 58°F | 39°F | 48.5°F | 2.77 | 11 | <1 | 8 | 11 h 10 min |
| November | 44°F | 28°F | 36.2°F | 2.13 | 9 | <1 | 21 | 9 h 40 min |
| December | 33°F | 18°F | 25.7°F | 2.22 | 9 | <1 | 28 | 9 h |
| Year (annual) | 54°F | 36°F | 45.0°F | 34.86 | 120 | 3 | 157 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −3°C | −11°C | −7.0°C | 38 mm |
| February | −1°C | −10°C | −5.4°C | 43 mm |
| March | 5°C | −5°C | −0.2°C | 54 mm |
| April | 11°C | 0°C | 5.7°C | 98 mm |
| May | 18°C | 6°C | 12.1°C | 97 mm |
| June | 23°C | 12°C | 17.6°C | 108 mm |
| July | 26°C | 15°C | 20.4°C | 83 mm |
| August | 25°C | 14°C | 19.5°C | 100 mm |
| September | 21°C | 10°C | 15.8°C | 83 mm |
| October | 14°C | 4°C | 9.2°C | 70 mm |
| November | 7°C | −2°C | 2.3°C | 54 mm |
| December | 1°C | −8°C | −3.5°C | 56 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Port Washington (4 miles away), gets 42 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00477581; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Saukville?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, July has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00477581.
When is the last frost in Saukville?
In Saukville, the last spring frost (32°F) comes after May 5 in half of years and after May 19 in one year in ten; the first autumn frost comes before October 11 in half of years and before September 29 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 51 year in 10 after May 19; 9 in 10 after April 22
- First autumn frost, half of years before
- October 111 year in 10 before September 29; 9 in 10 before October 24
NOAA puts the median frost-free season at 158 days, and the season without a hard freeze (28°F) at 182 days.
A hard freeze (28°F) comes after April 23 in half of springs and before October 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Saukville in zone 5b in ZIP code 53080.
Frost dates for every NOAA station in Wisconsin · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00477581; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Saukville?
In a normal year in Saukville, 3 days a year reach 90°F, 157 nights fall to 32°F or colder and 120 days bring measurable precipitation.
- Days at 90°F or more
- 3a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 157a normal year
- Days that stay below freezing
- 63high of 32°F or less
- Days with 0.01 inch of precipitation
- 120a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00477581.
How sunny is Saukville?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Saukville, 3.7 kWh per square metre a day. July is the sunniest month (80%) and December the cloudiest (53%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 54% | 1.4 |
| February | 60% | 2.3 |
| March | 66% | 3.5 |
| April | 68% | 4.6 |
| May | 70% | 5.4 |
| June | 75% | 6.0 |
| July | 80% | 6.1 |
| August | 79% | 5.2 |
| September | 77% | 4.2 |
| October | 67% | 2.6 |
| November | 62% | 1.7 |
| December | 53% | 1.2 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Saukville need?
A normal year in Saukville brings 7,628 heating degree days, 42% more than the median U.S. place (5,373), and 355 cooling degree days, 61% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,139 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,415 | 0 |
| February | 1,197 | 0 |
| March | 1,034 | 0 |
| April | 681 | 0 |
| May | 360 | 8 |
| June | 102 | 60 |
| July | 30 | 144 |
| August | 39 | 104 |
| September | 173 | 37 |
| October | 515 | 2 |
| November | 864 | 0 |
| December | 1,218 | 0 |
| Year (annual) | 7,628 | 355 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00477581. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Saukville been warmer than normal lately?
2025 averaged 46.0°F, 1.0°F above the 1991-2020 normal of 45.0°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 46.5°F | +1.5°F | 26.11 |
| 2022 | 44.9°F | −0.1°F | 37.17 |
| 2023 | 48.1°F | +3.1°F | 34.74 |
| 2024 | 48.9°F | +3.9°F | 38.75 |
| 2025 | 46.0°F | +1.0°F | 35.62 |
Source: observed years: ACIS, station USC00477581. A year counts only with all twelve months complete.
How does Saukville's climate compare?
Saukville is warmer than 78 of the other 164 places with their own NOAA record in Wisconsin, and wetter than 85. Across the 7,247 U.S. stations with normals, its annual mean of 45.0°F is warmer than 19%.
In the Köppen classification computed from these normals, Saukville is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Saukville share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Newburg, WI1,131 people · 7 mi NW
- Waubeka, WI560 people · 7 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Saukville's climate
What is the coldest month in Saukville?
January, with a normal high of 27°F and a normal low of 12°F. The warmest is July (79°F by day, 59°F at night).
Does it snow in Saukville?
Yes. NOAA publishes no 1991-2020 snowfall normal for Saukville's NOAA station; the nearest record that keeps one, Port Washington (4 miles away), records 42 inches of snow in a normal year.
What is the rainiest month in Saukville?
June, with 4.26 in of precipitation in a normal year; the driest is January with 1.50 in.
What plant hardiness zone is Saukville in?
The USDA's 2023 map puts Saukville in zone 5b in ZIP code 53080.
How late can frost come in Saukville?
In half of years the last 32°F night comes after May 5; in one year in ten it comes after May 19. Waiting until May 19 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wisconsin climateThe statewide normals and every place in the state
- Port Washington, WI4 miles from this station, 46.7°F a year
- Grafton, WI5 miles from this station, 47.9°F a year
- Belgium, WI11 miles from this station, 45.1°F a year
- Jackson, WI12 miles from this station, 46.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made