Jones, Samuel S., Cobblestone House · Photo: Sa magnuson33 · CC BY-SA 3.0Winter nights in Clinton are colder than in 90% of U.S. towns
Expect July afternoons of about 83°. By July afternoons alone, it runs cooler than 75% of U.S. towns. Decade by decade the climate has edged up, 0.9° above 1901–2000. Homes need heating from November to April, the months averaging under 50°.
A year in Clinton at a glance
Each month’s typical high and low, and what it brings.
What stands out about Clinton’s climate
Compared with towns across the U.S., with Clinton’s place in Wisconsin beside it.
What a year in Clinton feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 161 frost-free days a year
In half of years the last 32° night comes by April 30 and the first by October 10. Frost and day counts come from NOAA’s station at Clinton Wwtp, WI, 1.7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Clinton’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −14°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 38 inches of snow a winter
Snow, measured at Clinton Wwtp, WI, is heaviest from January through February, about 11 inches a month. Precipitation (rain plus melted snow) adds up to 38 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 117 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Clinton
92% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Clinton Wwtp, WI.
Living with Clinton’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
161 frost-free days in zone 5b. The last frost comes by Apr 30 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 10.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 6.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Clinton from natural hazards, river flooding is the largest share (40%); heat waves, cold waves, winter storms and ice storms together are 24%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Clinton and its neighbors
Every town next door is within a degree of Clinton in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Clinton’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Clinton, WI | 13° | 83° | 38" | 38" |
| Grinnell, IA | 12° | 84° | 38" | 31" |
| Hillsdale, MI | 16° | 82° | 38" | 44" |
| Horseheads, NY | 16° | 82° | 36" | 42" |
| Kendallville, IN | 17° | 83° | 38" | 36" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Clinton averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.5°).
A smaller shift than in 84% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Clinton compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Clinton’s place among Wisconsin’s.
Clinton weather by month
Highs, lows and precipitation from NOAA’s grid at Clinton’s center; snow, wet days and snow on the ground from Clinton Wwtp, WI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 28° | 13° | 1.6" | 10.8" | 10 | 10° – 33° |
| February | 33° | 16° | 1.6" | 11.1" | 8 | 12° – 36° |
| March | 45° | 26° | 2.1" | 3.3" | 9 | 26° – 50° |
| April | 58° | 36° | 3.7" | 0.8" | 12 | 38° – 54° |
| May | 70° | 47° | 4.4" | 0.0" | 13 | 53° – 64° |
| June | 79° | 57° | 5.4" | 0.0" | 11 | 65° – 73° |
| July | 83° | 62° | 3.9" | 0.0" | 9 | 66° – 79° |
| August | 81° | 60° | 4.2" | 0.0" | 9 | 64° – 76° |
| September | 74° | 52° | 3.7" | 0.0" | 9 | 57° – 68° |
| October | 61° | 40° | 3.0" | 0.1" | 10 | 46° – 57° |
| November | 46° | 29° | 2.4" | 2.1" | 8 | 29° – 47° |
| December | 33° | 19° | 2.0" | 9.7" | 9 | 13° – 36° |
| Year | 57° | 38° | 37.8" | 37.9" | 117 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 12° to 36°. June is the most reliable, staying within 8°.
Where Clinton’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Clinton’s center.
- Snow: Clinton Wwtp, WI (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Clinton Wwtp, WI, 1.7 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Clinton’s climate
What is the weather like in Clinton?
A typical July afternoon reaches 83°, a January night drops to 13°, and about 38 inches of snow falls in a normal winter. Colder January nights than 90% of U.S. towns; cooler July afternoons than 75% of U.S. towns.
How cold does it get in Clinton in winter?
January nights average 13°. About 148 nights a year reach 32° or below and 18 reach 0° or below. In the coldest January of the last 30 years the month averaged 10°.
How much snow does Clinton get?
About 38 inches in a normal winter at Clinton Wwtp, WI, heaviest from January through February, about 11 inches a month.
How hot does it get in Clinton?
July, with a typical high of 83° and a low of 62°. About 8 days a year reach 90° (Clinton Wwtp, WI).
When is the first and last frost in Clinton?
In half of years the last spring frost (32°) comes by April 30 and the first fall frost by October 10, about 161 frost-free days, at Clinton Wwtp, WI.
What growing zone is Clinton in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −14°.
What is the best time of year to visit Clinton?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Clinton getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 84% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Clinton.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.