For weather, Hardin Township is about as ordinary as U.S. towns get
High summer brings afternoon highs near 87°. Precipitation is light here, less than falls on 63% of U.S. towns. Since 1901–2000, the year has warmed by 0.8°, most of all in December. From April to June and September to October, highs of 65–83° make it easy to spend the day outdoors.
A year in Hardin Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Hardin Township’s climate
Compared with towns across the U.S., with Hardin Township’s place in Illinois beside it.
What a year in Hardin Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 189 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by October 21. Frost and day counts come from NOAA’s station at Pittsfield #2, IL, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Hardin Township’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −6°. 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 Pittsfield #2, IL, falls mostly in February. Precipitation (rain plus melted snow) adds up to 39 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 102 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Hardin Township
81% 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 Pittsfield #2, IL.
Living with Hardin Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
189 frost-free days in zone 6a. The last frost comes by Apr 14 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 21.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Hardin Township from natural hazards, river flooding is the largest share (40%); heat waves, cold waves, winter storms and ice storms together are 26%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Hardin Township and its neighbors
Every town next door is within a degree of Hardin Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Hardin 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 |
|---|---|---|---|---|
| Hardin Township, IL | 20° | 87° | 39" | 16" |
| Excelsior Springs, MO | 19° | 87° | 40" | 19" |
| Terre Haute, IN | 21° | 87° | 43" | 15" |
| Spring Hill, KS | 21° | 88° | 40" | 14" |
| Dayton, OH | 22° | 86° | 41" | 12" |
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 Hardin Township averaged 0.8° warmer than the 1900s. The biggest change is in December (+1.8°).
A smaller shift than in 92% 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 Hardin Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Hardin Township’s place among Illinois’.
Hardin Township weather by month
Highs, lows and precipitation from NOAA’s grid at Hardin Township’s center; snow, wet days and snow on the ground from Pittsfield #2, IL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 36° | 20° | 2.1" | 4.0" | 6 | 10 | 22° – 39° |
| February | 42° | 24° | 1.9" | 5.1" | 7 | 7 | 21° – 43° |
| March | 53° | 33° | 2.9" | 1.7" | 9 | 2 | 35° – 57° |
| April | 65° | 43° | 4.1" | 0.3" | 11 | 0 | 47° – 60° |
| May | 75° | 53° | 4.8" | 0.0" | 12 | 0 | 59° – 73° |
| June | 83° | 63° | 4.7" | 0.0" | 10 | 0 | 69° – 78° |
| July | 87° | 66° | 4.1" | 0.0" | 8 | 0 | 71° – 83° |
| August | 85° | 64° | 3.3" | 0.0" | 8 | 0 | 69° – 81° |
| September | 79° | 56° | 3.4" | 0.0" | 8 | 0 | 62° – 73° |
| October | 67° | 45° | 3.1" | 0.0" | 8 | 0 | 51° – 62° |
| November | 53° | 34° | 2.8" | 1.1" | 8 | 1 | 36° – 51° |
| December | 41° | 25° | 2.2" | 3.4" | 7 | 5 | 19° – 42° |
| Year | 64° | 44° | 39.3" | 15.6" | 102 | 24 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 19° to 42°. June is the most reliable, staying within 9°.
Where Hardin 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 Hardin Township’s center.
- Snow: Pittsfield #2, IL.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Pittsfield #2, IL, 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 Hardin Township’s climate
What is the weather like in Hardin Township?
A typical July afternoon reaches 87°, a January night drops to 20°, and about 16 inches of snow falls in a normal winter. Colder January nights than 59% of U.S. towns; hotter July afternoons than 60% of U.S. towns.
How cold does it get in Hardin Township in winter?
January nights average 20°. About 119 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 22°.
How much snow does Hardin Township get?
About 16 inches in a normal winter at Pittsfield #2, IL, most of it in February, with snow on the ground about 24 days a year.
How hot does it get in Hardin Township?
July, with a typical high of 87° and a low of 66°. About 31 days a year reach 90° and 1 reach 100° (Pittsfield #2, IL).
When is the first and last frost in Hardin Township?
In half of years the last spring frost (32°) comes by April 14 and the first fall frost by October 21, about 189 frost-free days, at Pittsfield #2, IL.
What growing zone is Hardin Township in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −6°.
What is the best time of year to visit Hardin 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 Hardin Township getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 92% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Hardin 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.