No extremes in Mill Township: its weather tracks the middle of U.S. towns
On a normal January night the air cools to about 19°. Winter nights are cold: in January they are colder than in 65% of U.S. towns. Warming shows here too: 1.0° more than in 1901–2000, led by December. Homes need heating from November to March, the months averaging under 50°.
A year in Mill Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Mill Township’s climate
Compared with towns across the U.S., with Mill Township’s place in Indiana beside it.
What a year in Mill Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 175 frost-free days a year
In half of years the last 32° night comes by April 26 and the first by October 20. Frost and day counts come from NOAA’s station at Marion 2 N, IN, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Mill Township’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 25 inches of snow a winter
Snow, measured at Marion 2 N, IN, falls mostly in January. Precipitation (rain plus melted snow) adds up to 41 inches a year; June 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 Mill Township
88% 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 Marion 2 N, IN.
Living with Mill Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
175 frost-free days in zone 6a. The last frost comes by Apr 26 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 20.
Months with highs of 62–84° and lows of 40° or more: April, May, June, August, September and October. 0.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Mill Township from natural hazards, river flooding is the largest share (58%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Mill Township and its neighbors
Every town next door is within a degree of Mill Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Mill 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 |
|---|---|---|---|---|
| Mill Township, IN | 19° | 84° | 41" | 25" |
| Uhrichsville, OH | 20° | 84° | 41" | 26" |
| New Castle, PA | 20° | 84° | 42" | 28" |
| Claverack, NY | 16° | 84° | 42" | 31" |
| Lisle, IL | 16° | 84° | 39" | 24" |
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 Mill Township averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.1°).
A smaller shift than in 80% 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 Mill Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Mill Township’s place among Indiana’s.
Mill Township weather by month
Highs, lows and precipitation from NOAA’s grid at Mill Township’s center; snow, wet days and snow on the ground from Marion 2 N, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 19° | 2.8" | 8.1" | 12 | 12 | 17° – 38° |
| February | 38° | 22° | 2.2" | 6.3" | 9 | 9 | 17° – 40° |
| March | 49° | 30° | 3.0" | 3.7" | 10 | 3 | 32° – 54° |
| April | 62° | 40° | 4.0" | 0.3" | 12 | 0 | 44° – 57° |
| May | 73° | 51° | 4.4" | 0.0" | 13 | 0 | 55° – 69° |
| June | 81° | 60° | 4.8" | 0.0" | 11 | 0 | 65° – 74° |
| July | 84° | 63° | 4.1" | 0.0" | 10 | 0 | 68° – 79° |
| August | 82° | 61° | 4.0" | 0.0" | 9 | 0 | 67° – 78° |
| September | 77° | 54° | 3.4" | 0.0" | 8 | 0 | 61° – 70° |
| October | 65° | 43° | 3.0" | 0.1" | 10 | 0 | 50° – 60° |
| November | 50° | 33° | 3.3" | 1.0" | 10 | 1 | 35° – 49° |
| December | 39° | 24° | 2.6" | 5.0" | 10 | 6 | 18° – 42° |
| Year | 61° | 42° | 41.4" | 24.5" | 123 | 30 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 18° to 42°. June is the most reliable, staying within 9°.
Where Mill 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 Mill Township’s center.
- Snow: Marion 2 N, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Marion 2 N, IN, 7 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 Mill Township’s climate
What is the weather like in Mill Township?
A typical July afternoon reaches 84°, a January night drops to 19°, and about 25 inches of snow falls in a normal winter. Colder January nights than 65% of U.S. towns; cooler July afternoons than 59% of U.S. towns.
How cold does it get in Mill Township in winter?
January nights average 19°. About 126 nights a year reach 32° or below and 6 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How much snow does Mill Township get?
About 25 inches in a normal winter at Marion 2 N, IN, most of it in January, with snow on the ground about 30 days a year.
How hot does it get in Mill Township?
July, with a typical high of 84° and a low of 63°. About 14 days a year reach 90° (Marion 2 N, IN).
When is the first and last frost in Mill Township?
In half of years the last spring frost (32°) comes by April 26 and the first fall frost by October 20, about 175 frost-free days, at Marion 2 N, IN.
What growing zone is Mill Township 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 Mill Township?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Mill Township getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 80% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Mill 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.