Brown Township’s winters are colder but less snowy than most of the U.S.
A typical July afternoon reaches 85°, a January night drops to 17°, and about 17 inches of snow falls in a normal winter.
A year in Brown Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Brown Township’s climate
Compared with towns across the U.S., with Brown Township’s place in Illinois beside it.
What a year in Brown Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 178 frost-free days a year
In half of years the last 32° night comes by April 21 and the first by October 17. Frost and day counts come from NOAA’s station at Gibson City, IL, 9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Brown Township’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −9°. 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 17 inches of snow a winter
Snow, measured at Fisher, IL, falls mostly in January and December. 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 111 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Brown Township
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 Gibson City, IL.
Living with Brown Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
178 frost-free days in zone 6a. The last frost comes by Apr 21 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 17.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October. 1.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Brown Township from natural hazards, river flooding is the largest share (52%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Brown Township and its neighbors
Every town next door is within a degree of Brown Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Brown 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 |
|---|---|---|---|---|
| Brown Township, IL | 17° | 85° | 39" | 17" |
| Van Wert, OH | 19° | 84° | 39" | 17" |
| Fort Madison, IA | 17° | 86° | 39" | 18" |
| Kirksville, MO | 17° | 86° | 41" | 19" |
| Bluffton, IN | 19° | 84° | 41" | 23" |
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 Brown Township averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.3°).
A smaller shift than in 60% 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 Brown Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Brown Township’s place among Illinois’.
Brown Township weather by month
Highs, lows and precipitation from NOAA’s grid at Brown Township’s center; snow, wet days and snow on the ground from Fisher, IL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 33° | 17° | 2.2" | 5.1" | 8 | 18° – 37° |
| February | 38° | 21° | 1.9" | 4.2" | 8 | 18° – 41° |
| March | 50° | 30° | 2.7" | 2.2" | 10 | 33° – 55° |
| April | 63° | 40° | 4.0" | 0.4" | 11 | 44° – 57° |
| May | 74° | 51° | 4.5" | 0.0" | 12 | 57° – 71° |
| June | 83° | 61° | 4.4" | 0.0" | 11 | 67° – 76° |
| July | 85° | 64° | 4.3" | 0.0" | 8 | 69° – 81° |
| August | 84° | 61° | 3.6" | 0.0" | 8 | 67° – 79° |
| September | 79° | 54° | 3.1" | 0.0" | 7 | 61° – 71° |
| October | 66° | 42° | 3.2" | 0.0" | 10 | 50° – 60° |
| November | 50° | 32° | 3.0" | 0.6" | 9 | 34° – 49° |
| December | 38° | 23° | 2.2" | 4.9" | 9 | 17° – 40° |
| Year | 62° | 41° | 39.1" | 17.4" | 111 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 17° to 40°. June is the most reliable, staying within 8°.
Where Brown 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 Brown Township’s center.
- Snow: Fisher, IL.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Gibson City, IL, 9 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 Brown Township’s climate
What is the weather like in Brown Township?
A typical July afternoon reaches 85°, a January night drops to 17°, and about 17 inches of snow falls in a normal winter. Colder January nights than 74% of U.S. towns; cooler July afternoons than 50% of U.S. towns.
How cold does it get in Brown Township in winter?
January nights average 17°. About 130 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 18°.
How much snow does Brown Township get?
About 17 inches in a normal winter at Fisher, IL, most of it in January and December.
How hot does it get in Brown Township?
July, with a typical high of 85° and a low of 64°. About 19 days a year reach 90° (Gibson City, IL).
When is the first and last frost in Brown Township?
In half of years the last spring frost (32°) comes by April 21 and the first fall frost by October 17, about 178 frost-free days, at Gibson City, IL.
What growing zone is Brown Township in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −9°.
What is the best time of year to visit Brown Township?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Brown Township getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 60% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Brown 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.