Photo: Omnedon · Public domainNights turn raw in Martinton Township each January, colder than in 77% of U.S. towns
On a normal July day the thermometer tops out near 85°. It is a dry place: less rain and snow fall here than on 65% of U.S. towns. Compared with 1901–2000, the average now sits 1.4° higher. From May to June and August to October, highs of 65–83° make it easy to spend the day outdoors.
A year in Martinton Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Martinton Township’s climate
Compared with towns across the U.S., with Martinton Township’s place in Illinois beside it.
What a year in Martinton Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 174 frost-free days a year
In half of years the last 32° night comes by April 24 and the first by October 16. Frost and day counts come from NOAA’s station at Watseka 2 Nw, IL, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Martinton Township’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −11°. 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 Watseka 2 Nw, IL, falls mostly in January. Precipitation (rain plus melted snow) adds up to 39 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 121 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Martinton 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 Watseka 2 Nw, IL.
Living with Martinton Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
174 frost-free days in zone 5b. The last frost comes by Apr 24 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 16.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Martinton Township from natural hazards, river flooding is the largest share (58%); heat waves, cold waves, winter storms and ice storms together are 30%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Martinton Township and its neighbors
Every town next door is within a degree of Martinton Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Martinton 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 |
|---|---|---|---|---|
| Martinton Township, IL | 17° | 85° | 39" | 17" |
| Van Wert, OH | 19° | 84° | 39" | 17" |
| Burlington, IA | 16° | 86° | 38" | 22" |
| Kirksville, MO | 17° | 86° | 41" | 19" |
| Monaca, PA | 21° | 84° | 40" | 20" |
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 Martinton Township averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.6°).
A smaller shift than in 50% 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 Martinton Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Martinton Township’s place among Illinois’.
Martinton Township weather by month
Highs, lows and precipitation from NOAA’s grid at Martinton Township’s center; snow, wet days and snow on the ground from Watseka 2 Nw, IL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 33° | 17° | 2.3" | 5.4" | 10 | 15° – 37° |
| February | 38° | 21° | 1.8" | 4.7" | 8 | 16° – 40° |
| March | 50° | 30° | 2.4" | 1.6" | 10 | 32° – 55° |
| April | 63° | 39° | 3.6" | 0.3" | 12 | 43° – 57° |
| May | 74° | 50° | 4.4" | 0.0" | 12 | 56° – 69° |
| June | 82° | 60° | 5.0" | 0.0" | 11 | 67° – 75° |
| July | 85° | 63° | 4.5" | 0.0" | 9 | 68° – 79° |
| August | 83° | 61° | 3.6" | 0.0" | 9 | 67° – 78° |
| September | 78° | 53° | 3.1" | 0.0" | 9 | 61° – 70° |
| October | 65° | 42° | 3.2" | 0.0" | 10 | 50° – 60° |
| November | 50° | 32° | 2.7" | 0.7" | 10 | 33° – 49° |
| December | 38° | 22° | 2.1" | 4.4" | 10 | 16° – 41° |
| Year | 61° | 41° | 38.5" | 17.1" | 121 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 16° to 41°. June is the most reliable, staying within 8°.
Where Martinton 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 Martinton Township’s center.
- Snow: Watseka 2 Nw, IL.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Watseka 2 Nw, 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 Martinton Township’s climate
What is the weather like in Martinton 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 77% of U.S. towns; cooler July afternoons than 55% of U.S. towns.
How cold does it get in Martinton Township in winter?
January nights average 17°. About 133 nights a year reach 32° or below and 10 reach 0° or below. In the coldest January of the last 30 years the month averaged 15°.
How much snow does Martinton Township get?
About 17 inches in a normal winter at Watseka 2 Nw, IL, most of it in January.
How hot does it get in Martinton Township?
July, with a typical high of 85° and a low of 63°. About 16 days a year reach 90° (Watseka 2 Nw, IL).
When is the first and last frost in Martinton Township?
In half of years the last spring frost (32°) comes by April 24 and the first fall frost by October 16, about 174 frost-free days, at Watseka 2 Nw, IL.
What growing zone is Martinton Township in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −11°.
What is the best time of year to visit Martinton 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 Martinton Township getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 50% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Martinton 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.