Weather without surprises: Tiro keeps close to the norm for U.S. towns
Expect July afternoons of about 83°. By January nights alone, it runs colder than 71% of U.S. towns. December has warmed most since 1901–2000, part of a 1.3° rise. Homes need heating from November to April, the months averaging under 50°.
A year in Tiro at a glance
Each month’s typical high and low, and what it brings.
What stands out about Tiro’s climate
Compared with towns across the U.S., with Tiro’s place in Ohio beside it.
What a year in Tiro feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 190 frost-free days a year
In half of years the last 32° night comes by April 19 and the first by October 27. Frost and day counts come from NOAA’s station at Bucyrus, OH, 12 miles from the town’s center, at about the same height.
The 2023 USDA map puts Tiro’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −7°. 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 26 inches of snow a winter
Snow, measured at Galion Wtr Wks, OH, falls mostly in January. Precipitation (rain plus melted snow) adds up to 40 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 137 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Tiro
85% of the work is heating. 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 Bucyrus, OH.
Living with Tiro’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
190 frost-free days in zone 6a. The last frost comes by Apr 19 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 27.
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 Tiro from natural hazards, river flooding is the largest share (54%); heat waves, cold waves, winter storms and ice storms together are 21%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Tiro and similar climates
TownRatings has no climate map of the towns around Tiro yet.
Climates most like Tiro’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 |
|---|---|---|---|---|
| Tiro, OH | 18° | 83° | 40" | 26" |
| Highland, IN | 18° | 84° | 39" | 27" |
| Calumet City, IL | 18° | 84° | 39" | 28" |
| Ghent, NY | 16° | 84° | 42" | 31" |
| Bloomsburg, PA | 19° | 84° | 43" | 29" |
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 Tiro averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.5°).
A smaller shift than in 54% 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 Tiro compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Tiro’s place among Ohio’s.
Tiro weather by month
Highs, lows and precipitation from NOAA’s grid at Tiro’s center; snow, wet days and snow on the ground from Galion Wtr Wks, OH. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 34° | 18° | 2.9" | 9.9" | 13 | 17° – 36° |
| February | 37° | 20° | 2.3" | 4.9" | 10 | 14° – 38° |
| March | 47° | 28° | 2.8" | 4.0" | 11 | 31° – 50° |
| April | 61° | 38° | 3.8" | 0.4" | 14 | 43° – 55° |
| May | 71° | 48° | 4.2" | 0.0" | 14 | 52° – 67° |
| June | 80° | 58° | 4.5" | 0.0" | 12 | 64° – 72° |
| July | 83° | 61° | 3.9" | 0.0" | 11 | 67° – 77° |
| August | 81° | 59° | 3.5" | 0.0" | 9 | 66° – 75° |
| September | 76° | 52° | 3.4" | 0.0" | 10 | 60° – 69° |
| October | 63° | 42° | 3.2" | 0.1" | 11 | 48° – 59° |
| November | 49° | 32° | 3.1" | 1.0" | 11 | 34° – 47° |
| December | 38° | 24° | 2.9" | 5.6" | 12 | 19° – 42° |
| Year | 60° | 40° | 40.3" | 25.9" | 137 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 14° to 38°. June is the most reliable, staying within 9°.
Where Tiro’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 Tiro’s center.
- Snow: Galion Wtr Wks, OH.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Bucyrus, OH, 12 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 Tiro’s climate
What is the weather like in Tiro?
A typical July afternoon reaches 83°, a January night drops to 18°, and about 26 inches of snow falls in a normal winter. Colder January nights than 71% of U.S. towns; cooler July afternoons than 70% of U.S. towns.
How cold does it get in Tiro in winter?
January nights average 18°. About 129 nights a year reach 32° or below and 7 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How much snow does Tiro get?
About 26 inches in a normal winter at Galion Wtr Wks, OH, most of it in January.
How hot does it get in Tiro?
July, with a typical high of 83° and a low of 61°. About 14 days a year reach 90° (Bucyrus, OH).
When is the first and last frost in Tiro?
In half of years the last spring frost (32°) comes by April 19 and the first fall frost by October 27, about 190 frost-free days, at Bucyrus, OH.
What growing zone is Tiro in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −7°.
What is the best time of year to visit Tiro?
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 Tiro getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 54% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Tiro.
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.