Photo: Roseohioresident · CC BY-SA 4.0Neither notably warm, cold, wet nor dry, Irondale sits near the middle of U.S. towns
The depth of winter brings overnight lows near 21°. Its July afternoons stay fresher than in 68% of U.S. towns. Compared with 1901–2000, the average now sits 1.1° higher. The heating season runs November to March: each of those months averages under 50°.
A year in Irondale at a glance
Each month’s typical high and low, and what it brings.
What stands out about Irondale’s climate
Compared with towns across the U.S., with Irondale’s place in Ohio beside it.
What a year in Irondale feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 186 frost-free days a year
In half of years the last 32° night comes by April 22 and the first by October 28. Frost and day counts come from NOAA’s station at New Cumberland L/d, WV, 6 miles from the town’s center, 210 ft lower.
The 2023 USDA map puts Irondale’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −1°. 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 41 inches of rain a year
June is the wettest month and February the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Irondale
87% 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 New Cumberland L/d, WV.
Living with Irondale’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
186 frost-free days in zone 6b. The last frost comes by Apr 22 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 28.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Irondale from natural hazards, river flooding is the largest share (88%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Irondale and similar climates
TownRatings has no climate map of the towns around Irondale yet.
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 Irondale averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.3°).
A smaller 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 Irondale compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Irondale’s place among Ohio’s.
Irondale weather by month
Highs, lows and precipitation from NOAA’s grid at Irondale’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 36° | 21° | 3.0" | 21° – 38° |
| February | 40° | 23° | 2.4" | 17° – 39° |
| March | 49° | 30° | 3.2" | 33° – 51° |
| April | 62° | 39° | 3.7" | 45° – 55° |
| May | 72° | 49° | 4.1" | 54° – 67° |
| June | 80° | 57° | 4.5" | 65° – 71° |
| July | 83° | 62° | 4.1" | 68° – 77° |
| August | 82° | 61° | 3.6" | 67° – 75° |
| September | 76° | 54° | 3.6" | 62° – 69° |
| October | 64° | 43° | 3.0" | 50° – 60° |
| November | 51° | 34° | 2.8" | 36° – 49° |
| December | 41° | 26° | 3.0" | 23° – 44° |
| Year | 61° | 41° | 40.9" |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 23° to 44°. June is the most reliable, staying within 7°.
Where Irondale’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 Irondale’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: New Cumberland L/d, WV, 6 miles from the town’s center, 210 ft lower; 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 Irondale’s climate
What is the weather like in Irondale?
A typical July afternoon reaches 83°, a January night drops to 21°. Colder January nights than 54% of U.S. towns; cooler July afternoons than 68% of U.S. towns.
How cold does it get in Irondale in winter?
January nights average 21°. About 112 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 21°.
How hot does it get in Irondale?
July, with a typical high of 83° and a low of 62°. About 11 days a year reach 90° (New Cumberland L/d, WV).
When is the first and last frost in Irondale?
In half of years the last spring frost (32°) comes by April 22 and the first fall frost by October 28, about 186 frost-free days, at New Cumberland L/d, WV.
What growing zone is Irondale in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −1°.
What is the best time of year to visit Irondale?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Irondale getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 72% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Irondale.
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.