Berreman Township has colder winter nights than 91% of U.S. towns
On a normal July day the thermometer tops out near 83°. Temperatures cover 71° across the year, low to high. By July afternoons alone, it runs cooler than 71% of U.S. towns. Central heating does most of its work from November to April, in months below 50° on average.
A year in Berreman Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Berreman Township’s climate
Compared with towns across the U.S., with Berreman Township’s place in Illinois beside it.
What a year in Berreman Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 154 frost-free days a year
In half of years the last 32° night comes by May 2 and the first by October 7. Frost and day counts come from NOAA’s station at Mt Carroll, IL, 10 miles from the town’s center, 260 ft lower.
The 2023 USDA map puts Berreman Township’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −16°. 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 36 inches of snow a winter
Snow, measured at Stockton 3 Nne, IL, falls mostly in January. Precipitation (rain plus melted snow) adds up to 39 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 118 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Berreman Township
90% 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 Mt Carroll, IL.
Living with Berreman Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
154 frost-free days in zone 5a. The last frost comes by May 2 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 7.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September.
Parks & trails →Of the yearly building losses FEMA expects in Berreman Township from natural hazards, river flooding is the largest share (47%); heat waves, cold waves, winter storms and ice storms together are 19%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Berreman Township and its neighbors
Every town next door is within a degree of Berreman Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Berreman 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 |
|---|---|---|---|---|
| Berreman Township, IL | 12° | 83° | 39" | 36" |
| Boone, IA | 11° | 84° | 36" | 36" |
| Westville, IN | 16° | 83° | 39" | 34" |
| Winona, MN | 8° | 83° | 36" | 38" |
| Coldwater, MI | 17° | 83° | 39" | 43" |
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 Berreman Township averaged 1.6° warmer than the 1900s. The biggest change is in December (+2.9°).
A bigger shift than in 67% 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 Berreman Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Berreman Township’s place among Illinois’.
Berreman Township weather by month
Highs, lows and precipitation from NOAA’s grid at Berreman Township’s center; snow, wet days and snow on the ground from Stockton 3 Nne, IL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 29° | 12° | 1.5" | 10.7" | 9 | 21 | 11° – 33° |
| February | 33° | 16° | 1.7" | 8.1" | 8 | 16 | 11° – 36° |
| March | 46° | 27° | 2.4" | 4.9" | 10 | 6 | 28° – 52° |
| April | 59° | 37° | 3.8" | 1.3" | 12 | 1 | 39° – 55° |
| May | 71° | 48° | 4.4" | 0.1" | 13 | 0 | 54° – 67° |
| June | 80° | 58° | 5.6" | 0.0" | 12 | 0 | 65° – 73° |
| July | 83° | 62° | 4.7" | 0.0" | 9 | 0 | 66° – 79° |
| August | 81° | 60° | 3.9" | 0.0" | 10 | 0 | 65° – 77° |
| September | 75° | 52° | 3.8" | 0.0" | 9 | 0 | 57° – 68° |
| October | 62° | 40° | 3.0" | 0.5" | 9 | 0 | 47° – 57° |
| November | 46° | 29° | 2.4" | 2.1" | 9 | 2 | 29° – 47° |
| December | 34° | 18° | 1.9" | 8.0" | 10 | 13 | 12° – 36° |
| Year | 58° | 38° | 38.9" | 35.7" | 118 | 58 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 11° to 36°. June is the most reliable, staying within 8°.
Where Berreman 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 Berreman Township’s center.
- Snow: Stockton 3 Nne, IL.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Mt Carroll, IL, 10 miles from the town’s center, 260 ft lower; 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 Berreman Township’s climate
What is the weather like in Berreman Township?
A typical July afternoon reaches 83°, a January night drops to 12°, and about 36 inches of snow falls in a normal winter. Colder January nights than 91% of U.S. towns; cooler July afternoons than 71% of U.S. towns.
How cold does it get in Berreman Township in winter?
January nights average 12°. About 155 nights a year reach 32° or below and 17 reach 0° or below. In the coldest January of the last 30 years the month averaged 11°.
How much snow does Berreman Township get?
About 36 inches in a normal winter at Stockton 3 Nne, IL, most of it in January, with snow on the ground about 58 days a year.
How hot does it get in Berreman Township?
July, with a typical high of 83° and a low of 62°. About 19 days a year reach 90° (Mt Carroll, IL).
When is the first and last frost in Berreman Township?
In half of years the last spring frost (32°) comes by May 2 and the first fall frost by October 7, about 154 frost-free days, at Mt Carroll, IL.
What growing zone is Berreman Township in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −16°.
What is the best time of year to visit Berreman Township?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Berreman Township getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 67% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Berreman 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.