Photo: Chris Flook · CC BY-SA 4.0Neither notably warm, cold, wet nor dry, Flat Rock Township sits near the middle of U.S. towns
In July the day’s top temperature is typically 85°. Its yearly precipitation tops that of 63% of U.S. towns. Compared with 1901–2000, the average now sits 0.8° higher. Garden planting can start around April 11; autumn frost returns near October 25.
A year in Flat Rock Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Flat Rock Township’s climate
Compared with towns across the U.S., with Flat Rock Township’s place in Indiana beside it.
What a year in Flat Rock Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 195 frost-free days a year
In half of years the last 32° night comes by April 11 and the first by October 25. Frost and day counts come from NOAA’s station at Columbus, IN, 10 miles from the town’s center, at about the same height.
The 2023 USDA map puts Flat Rock Township’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −4°. 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 16 inches of snow a winter
Snow, measured at Columbus, IN, falls mostly in January. Precipitation (rain plus melted snow) adds up to 46 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 123 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Flat Rock Township
82% of the work is heating. Months averaging under 55° run from November 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 Columbus, IN.
Living with Flat Rock Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
195 frost-free days in zone 6b. The last frost comes by Apr 11 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 25.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 1.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Flat Rock Township from natural hazards, river flooding is the largest share (60%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Flat Rock Township and its neighbors
Every town next door is within a degree of Flat Rock Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Flat Rock Township’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 |
|---|---|---|---|---|
| Flat Rock Township, IN | 22° | 85° | 46" | 16" |
| Marietta, OH | 23° | 86° | 44" | 16" |
| Moundsville, WV | 22° | 85° | 43" | 16" |
| Hicksville, NY | 24° | 85° | 45" | 19" |
| Lititz, PA | 22° | 86° | 45" | 21" |
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 Flat Rock Township averaged 0.8° warmer than the 1900s. The biggest change is in February (+2.1°).
A smaller shift than in 88% 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 Flat Rock Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Flat Rock Township’s place among Indiana’s.
Flat Rock Township weather by month
Highs, lows and precipitation from NOAA’s grid at Flat Rock Township’s center; snow, wet days and snow on the ground from Columbus, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 37° | 22° | 3.2" | 5.9" | 11 | 7 | 22° – 40° |
| February | 42° | 25° | 2.7" | 4.5" | 9 | 6 | 21° – 43° |
| March | 53° | 33° | 3.6" | 1.8" | 12 | 2 | 35° – 56° |
| April | 65° | 42° | 4.8" | 0.0" | 13 | 0 | 47° – 59° |
| May | 75° | 53° | 5.0" | 0.0" | 13 | 0 | 58° – 71° |
| June | 83° | 62° | 5.0" | 0.0" | 12 | 0 | 67° – 75° |
| July | 85° | 65° | 4.3" | 0.0" | 10 | 0 | 70° – 81° |
| August | 84° | 63° | 3.5" | 0.0" | 8 | 0 | 69° – 79° |
| September | 79° | 55° | 3.2" | 0.0" | 7 | 0 | 63° – 72° |
| October | 67° | 44° | 3.4" | 0.0" | 8 | 0 | 51° – 61° |
| November | 53° | 34° | 3.5" | 0.1" | 9 | 0 | 37° – 50° |
| December | 42° | 26° | 3.4" | 4.0" | 11 | 5 | 21° – 44° |
| Year | 64° | 44° | 45.6" | 16.3" | 123 | 19 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 21° to 44°. June is the most reliable, staying within 8°.
Where Flat Rock Township’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 Flat Rock Township’s center.
- Snow: Columbus, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Columbus, IN, 10 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 Flat Rock Township’s climate
What is the weather like in Flat Rock Township?
A typical July afternoon reaches 85°, a January night drops to 22°, and about 16 inches of snow falls in a normal winter. Milder January nights than 50% of U.S. towns; hotter July afternoons than 51% of U.S. towns.
How cold does it get in Flat Rock Township in winter?
January nights average 22°. About 108 nights a year reach 32° or below and 3 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does Flat Rock Township get?
About 16 inches in a normal winter at Columbus, IN, most of it in January, with snow on the ground about 19 days a year.
How hot does it get in Flat Rock Township?
July, with a typical high of 85° and a low of 65°. About 22 days a year reach 90° (Columbus, IN).
When is the first and last frost in Flat Rock Township?
In half of years the last spring frost (32°) comes by April 11 and the first fall frost by October 25, about 195 frost-free days, at Columbus, IN.
What growing zone is Flat Rock Township in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −4°.
What is the best time of year to visit Flat Rock Township?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Flat Rock Township getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 88% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Flat Rock Township.
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.