Few U.S. towns have colder winter nights than Eileen
Expect July afternoons of about 79°. The gap between a January night and a July afternoon is 74°. By July afternoons alone, it runs cooler than 95% of U.S. towns. The frost-free window for a garden runs roughly May 23 to September 29.
A year in Eileen at a glance
Each month’s typical high and low, and what it brings.
What stands out about Eileen’s climate
Compared with towns across the U.S., with Eileen’s place in Wisconsin beside it.
What a year in Eileen feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 125 frost-free days a year
In half of years the last 32° night comes by May 23 and the first by September 29. Frost and day counts come from NOAA’s station at Ashland Kennedy Mem Airport, 4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Eileen’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −19°. 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 74 inches of snow a winter
Snow, measured at Madeline Island, WI, falls mostly in January. Precipitation (rain plus melted snow) adds up to 31 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 120 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Eileen
97% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Ashland Kennedy Mem Airport.
Living with Eileen’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
125 frost-free days in zone 5a. The last frost comes by May 23 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 29.
Months with highs of 62–84° and lows of 40° or more: June, July, August and September. 8.6 miles of trails are waiting.
Parks & trails →Cold waves are 51% of the yearly building losses FEMA expects in Eileen from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Eileen and its neighbors
Keystone has the coldest January nights next door (3°, 2° colder). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Eileen’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 |
|---|---|---|---|---|
| Eileen, WI | 5° | 79° | 31" | 74" |
| Beekmantown, NY | 9° | 80° | 35" | 80" |
| St. Joseph, MN | 3° | 81° | 30" | 57" |
| Houghton Lake, MI | 12° | 81° | 33" | 66" |
| Littleton, NH | 6° | 80° | 40" | 68" |
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 Eileen averaged 1.6° warmer than the 1900s. The biggest change is in December (+3.4°).
A bigger shift than in 65% 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 Eileen compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Eileen’s place among Wisconsin’s.
Eileen weather by month
Highs, lows and precipitation from NOAA’s grid at Eileen’s center; snow, wet days and snow on the ground from Madeline Island, WI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 22° | 5° | 1.1" | 18.8" | 11 | 1° – 26° |
| February | 27° | 7° | 1.0" | 14.1" | 8 | 7° – 32° |
| March | 38° | 18° | 1.6" | 11.5" | 8 | 19° – 42° |
| April | 51° | 29° | 2.6" | 5.3" | 10 | 33° – 46° |
| May | 65° | 39° | 3.5" | 0.3" | 11 | 46° – 57° |
| June | 73° | 49° | 3.9" | 0.0" | 11 | 58° – 65° |
| July | 79° | 55° | 4.1" | 0.0" | 10 | 60° – 72° |
| August | 77° | 54° | 3.4" | 0.0" | 9 | 60° – 69° |
| September | 68° | 47° | 3.3" | 0.0" | 10 | 50° – 62° |
| October | 54° | 35° | 3.2" | 0.7" | 12 | 39° – 49° |
| November | 39° | 24° | 2.0" | 6.4" | 10 | 23° – 42° |
| December | 27° | 12° | 1.5" | 16.4" | 11 | 8° – 30° |
| Year | 52° | 31° | 30.9" | 73.5" | 120 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 7° to 32°. June is the most reliable, staying within 6°.
Where Eileen’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 Eileen’s center.
- Snow: Madeline Island, WI.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Ashland Kennedy Mem Airport, 4 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 Eileen’s climate
What is the weather like in Eileen?
A typical July afternoon reaches 79°, a January night drops to 5°, and about 74 inches of snow falls in a normal winter. Colder January nights than 98% of U.S. towns; cooler July afternoons than 95% of U.S. towns.
How cold does it get in Eileen in winter?
January nights average 5°. About 185 nights a year reach 32° or below and 29 reach 0° or below. In the coldest January of the last 30 years the month averaged 1°.
How much snow does Eileen get?
About 74 inches in a normal winter at Madeline Island, WI, most of it in January.
How hot does it get in Eileen?
July, with a typical high of 79° and a low of 55°. About 5 days a year reach 90° (Ashland Kennedy Mem Airport).
When is the first and last frost in Eileen?
In half of years the last spring frost (32°) comes by May 23 and the first fall frost by September 29, about 125 frost-free days, at Ashland Kennedy Mem Airport.
What growing zone is Eileen in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −19°.
What is the best time of year to visit Eileen?
By one simple rule (highs of 62–84° and lows of 40° or more), June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Eileen getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 65% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Eileen.
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.