Photo: Royalbroil · CC BY-SA 3.0Egg Harbor sits near the bottom of U.S. towns for July heat
Nights in January average 12°. By January nights alone, it runs colder than 91% of U.S. towns. February has warmed most since 1901–2000, part of a 1.5° rise. Warm coats and heating bills mark the months from October to April, when means dip under 50°.
A year in Egg Harbor at a glance
Each month’s typical high and low, and what it brings.
What stands out about Egg Harbor’s climate
Compared with towns across the U.S., with Egg Harbor’s place in Wisconsin beside it.
What a year in Egg Harbor feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 157 frost-free days a year
In half of years the last 32° night comes by May 8 and the first by October 13. Frost and day counts come from NOAA’s station at Sturgeon Bay Exp Farm, WI, 12 miles from the town’s center, 120 ft higher.
The 2023 USDA map puts Egg Harbor’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −12°. 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 57 inches of snow a winter
Snow, measured at Sturgeon Bay Exp Farm, WI, falls mostly in January. Precipitation (rain plus melted snow) adds up to 32 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 124 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Egg Harbor
96% 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 Sturgeon Bay Exp Farm, WI.
Living with Egg Harbor’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
157 frost-free days in zone 5b. The last frost comes by May 8 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 13.
Months with highs of 62–84° and lows of 40° or more: June, July, August and September. 0.4 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Egg Harbor from natural hazards, river flooding is the largest share (59%); heat waves, cold waves, winter storms and ice storms together are 26%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Egg Harbor and its neighbors
Every town next door is within a degree of Egg Harbor in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Egg Harbor’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 |
|---|---|---|---|---|
| Egg Harbor, WI | 12° | 77° | 32" | 57" |
| Alpena, MI | 14° | 78° | 31" | 59" |
| Duluth, MN | 5° | 76° | 30" | 56" |
| Plattsburgh, NY | 9° | 80° | 34" | 50" |
| Milton, VT | 10° | 80° | 40" | 50" |
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 Egg Harbor averaged 1.5° warmer than the 1900s. The biggest change is in February (+2.9°).
A bigger shift than in 57% 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 Egg Harbor compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Egg Harbor’s place among Wisconsin’s.
Egg Harbor weather by month
Highs, lows and precipitation from NOAA’s grid at Egg Harbor’s center; snow, wet days and snow on the ground from Sturgeon Bay Exp Farm, WI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 26° | 12° | 1.6" | 15.6" | 11 | 24 | 8° – 29° |
| February | 29° | 14° | 1.2" | 12.9" | 8 | 26 | 9° – 32° |
| March | 38° | 22° | 1.8" | 8.6" | 9 | 18 | 20° – 42° |
| April | 49° | 32° | 2.9" | 4.0" | 10 | 3 | 33° – 47° |
| May | 62° | 42° | 3.3" | 0.0" | 12 | 0 | 46° – 59° |
| June | 72° | 53° | 3.6" | 0.0" | 11 | 0 | 59° – 67° |
| July | 77° | 59° | 3.5" | 0.0" | 11 | 0 | 62° – 73° |
| August | 76° | 58° | 3.3" | 0.0" | 10 | 0 | 63° – 71° |
| September | 68° | 51° | 3.3" | 0.0" | 10 | 0 | 54° – 64° |
| October | 56° | 40° | 3.3" | 0.2" | 11 | 0 | 43° – 54° |
| November | 42° | 30° | 2.2" | 2.4" | 10 | 3 | 28° – 43° |
| December | 31° | 19° | 1.9" | 13.7" | 10 | 16 | 16° – 35° |
| Year | 52° | 36° | 31.8" | 57.4" | 124 | 90 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 9° to 32°. June is the most reliable, staying within 8°.
Where Egg Harbor’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 Egg Harbor’s center.
- Snow: Sturgeon Bay Exp Farm, WI.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Sturgeon Bay Exp Farm, WI, 12 miles from the town’s center, 120 ft higher; 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 Egg Harbor’s climate
What is the weather like in Egg Harbor?
A typical July afternoon reaches 77°, a January night drops to 12°, and about 57 inches of snow falls in a normal winter. Colder January nights than 91% of U.S. towns; cooler July afternoons than 97% of U.S. towns.
How cold does it get in Egg Harbor in winter?
January nights average 12°. About 152 nights a year reach 32° or below and 15 reach 0° or below. In the coldest January of the last 30 years the month averaged 8°.
How much snow does Egg Harbor get?
About 57 inches in a normal winter at Sturgeon Bay Exp Farm, WI, most of it in January, with snow on the ground about 90 days a year.
How hot does it get in Egg Harbor?
July, with a typical high of 77° and a low of 59°. About 2 days a year reach 90° (Sturgeon Bay Exp Farm, WI).
When is the first and last frost in Egg Harbor?
In half of years the last spring frost (32°) comes by May 8 and the first fall frost by October 13, about 157 frost-free days, at Sturgeon Bay Exp Farm, WI.
What growing zone is Egg Harbor in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −12°.
What is the best time of year to visit Egg Harbor?
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 Egg Harbor getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 57% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Egg Harbor.
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.