Ironton gets about 122 inches of snow a winter, more than all but 134 U.S. towns
Expect July afternoons of about 79°. In July, afternoons here are cooler than in 94% of U.S. towns. Decade by decade the climate has edged up, 1.7° above 1901–2000. Warm coats and heating bills mark the months from October to April, when means dip under 50°.
A year in Ironton at a glance
Each month’s typical high and low, and what it brings.
What stands out about Ironton’s climate
Compared with towns across the U.S., with Ironton’s place in Michigan beside it.
What a year in Ironton feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 144 frost-free days a year
In half of years the last 32° night comes by May 16 and the first by October 6. Frost and day counts come from NOAA’s station at E Jordan 2nw, MI, 5 miles from the town’s center, at about the same height.
The 2023 USDA map puts Ironton’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −11°. 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 122 inches of snow a winter
Snow, measured at E Jordan, MI, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 34 inches a year; October is the wettest month and February the driest. Rain or snow falls on about 149 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Ironton
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 E Jordan 2nw, MI.
Living with Ironton’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
144 frost-free days in zone 5b. The last frost comes by May 16 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 6.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Ironton from natural hazards, river flooding is the largest share (57%); heat waves, cold waves, winter storms and ice storms together are 33%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Ironton and similar climates
TownRatings has no climate map of the towns around Ironton yet.
Climates most like Ironton’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 |
|---|---|---|---|---|
| Ironton, MI | 15° | 79° | 34" | 122" |
| Warsaw, NY | 15° | 79° | 38" | 109" |
| Summit Park, UT | 19° | 79° | 30" | 153" |
| Burlington, VT | 10° | 81° | 38" | 86" |
| Beachwood, OH | 19° | 82° | 42" | 114" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Ironton averaged 1.7° warmer than the 1900s. The biggest change is in February (+3.2°).
A bigger shift than in 72% 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 Ironton compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Ironton’s place among Michigan’s.
Ironton weather by month
Highs, lows and precipitation from NOAA’s grid at Ironton’s center; snow, wet days and snow on the ground from E Jordan, MI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 28° | 15° | 2.2" | 37.4" | 17 | 29 | 10° – 30° |
| February | 30° | 14° | 1.5" | 23.1" | 12 | 28 | 7° – 32° |
| March | 39° | 21° | 1.9" | 11.0" | 10 | 21 | 20° – 43° |
| April | 52° | 31° | 2.9" | 4.6" | 11 | 3 | 33° – 48° |
| May | 65° | 42° | 3.1" | 0.0" | 12 | 0 | 46° – 60° |
| June | 75° | 52° | 3.1" | 0.0" | 10 | 0 | 59° – 69° |
| July | 79° | 57° | 2.8" | 0.0" | 10 | 0 | 61° – 72° |
| August | 78° | 57° | 3.1" | 0.0" | 10 | 0 | 62° – 71° |
| September | 70° | 49° | 3.7" | 0.0" | 11 | 0 | 54° – 65° |
| October | 57° | 40° | 4.3" | 0.7" | 15 | 0 | 43° – 55° |
| November | 44° | 31° | 3.0" | 10.0" | 15 | 7 | 31° – 44° |
| December | 33° | 22° | 2.4" | 35.4" | 16 | 21 | 19° – 37° |
| Year | 54° | 36° | 33.9" | 122.2" | 149 | 110 |
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°. August is the most reliable, staying within 9°.
Where Ironton’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 Ironton’s center.
- Snow: E Jordan, MI.
- Frost, freezing nights, 90° and 100° days, heating and cooling: E Jordan 2nw, MI, 5 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 Ironton’s climate
What is the weather like in Ironton?
A typical July afternoon reaches 79°, a January night drops to 15°, and about 122 inches of snow falls in a normal winter. Colder January nights than 86% of U.S. towns; cooler July afternoons than 94% of U.S. towns.
How cold does it get in Ironton in winter?
February nights average 14°. About 170 nights a year reach 32° or below and 14 reach 0° or below. In the coldest February of the last 30 years the month averaged 7°.
How much snow does Ironton get?
About 122 inches in a normal winter at E Jordan, MI, most of it in January and December, with snow on the ground about 110 days a year.
How hot does it get in Ironton?
July, with a typical high of 79° and a low of 57°. About 5 days a year reach 90° (E Jordan 2nw, MI).
When is the first and last frost in Ironton?
In half of years the last spring frost (32°) comes by May 16 and the first fall frost by October 6, about 144 frost-free days, at E Jordan 2nw, MI.
What growing zone is Ironton in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −11°.
What is the best time of year to visit Ironton?
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 Ironton getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 72% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Ironton.
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.