First Presbyterian Church · Photo: Nyttend · Public domainSummers, winters and rain in La Grange all run close to those of most U.S. towns
On a normal January night the air cools to about 18°. Seasons differ by 68°, from the coldest nights to the warmest afternoons. By January nights alone, it runs colder than 68% of U.S. towns. Long walks are most pleasant from April to June and September to October, when afternoons reach 64–83°.
A year in La Grange at a glance
Each month’s typical high and low, and what it brings.
What stands out about La Grange’s climate
Compared with towns across the U.S., with La Grange’s place in Missouri beside it.
What a year in La Grange feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 194 frost-free days a year
In half of years the last 32° night comes by April 11 and the first by October 23. Frost and day counts come from NOAA’s station at Canton L&d 20, MO, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts La Grange’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 18 inches of snow a winter
Snow, measured at Steffenville, MO, falls mostly in January. Precipitation (rain plus melted snow) adds up to 40 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 99 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in La Grange
85% 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 Canton L&d 20, MO.
Living with La Grange’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
194 frost-free days in zone 6a. The last frost comes by Apr 11 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 23.
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 La Grange from natural hazards, river flooding is the largest share (58%); heat waves, cold waves, winter storms and ice storms together are 22%. Normals are averages; the hazards page covers the extremes.
Natural hazards →La Grange and its neighbors
Every town next door is within a degree of La Grange in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like La Grange’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 |
|---|---|---|---|---|
| La Grange, MO | 18° | 87° | 40" | 18" |
| Monticello, IL | 18° | 85° | 40" | 18" |
| Terre Haute, IN | 21° | 87° | 43" | 15" |
| Atchison, KS | 19° | 88° | 37" | 17" |
| Van Wert, OH | 19° | 84° | 39" | 17" |
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 La Grange averaged 0.5° warmer than the 1900s. The biggest change is in December (+1.8°).
A smaller shift than in 98% 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 La Grange compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with La Grange’s place among Missouri’s.
La Grange weather by month
Highs, lows and precipitation from NOAA’s grid at La Grange’s center; snow, wet days and snow on the ground from Steffenville, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 35° | 18° | 1.7" | 5.8" | 7 | 10 | 20° – 38° |
| February | 40° | 23° | 1.9" | 4.1" | 7 | 6 | 18° – 43° |
| March | 52° | 32° | 2.5" | 2.1" | 8 | 2 | 35° – 56° |
| April | 64° | 43° | 4.1" | 0.7" | 11 | 0 | 45° – 60° |
| May | 74° | 54° | 5.2" | 0.0" | 12 | 0 | 59° – 72° |
| June | 83° | 63° | 4.7" | 0.0" | 10 | 0 | 69° – 77° |
| July | 87° | 67° | 4.1" | 0.0" | 9 | 0 | 71° – 83° |
| August | 85° | 65° | 4.0" | 0.0" | 8 | 0 | 69° – 80° |
| September | 79° | 56° | 3.4" | 0.0" | 7 | 0 | 63° – 73° |
| October | 66° | 45° | 3.4" | 0.1" | 8 | 0 | 50° – 61° |
| November | 52° | 33° | 2.6" | 1.0" | 7 | 1 | 35° – 51° |
| December | 40° | 24° | 2.0" | 4.0" | 7 | 6 | 17° – 41° |
| Year | 63° | 44° | 39.5" | 17.8" | 99 | 25 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 18° to 43°. June is the most reliable, staying within 8°.
Where La Grange’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 La Grange’s center.
- Snow: Steffenville, MO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Canton L&d 20, MO, 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 La Grange’s climate
What is the weather like in La Grange?
A typical July afternoon reaches 87°, a January night drops to 18°, and about 18 inches of snow falls in a normal winter. Colder January nights than 68% of U.S. towns; hotter July afternoons than 60% of U.S. towns.
How cold does it get in La Grange in winter?
January nights average 18°. About 122 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 20°.
How much snow does La Grange get?
About 18 inches in a normal winter at Steffenville, MO, most of it in January, with snow on the ground about 25 days a year.
How hot does it get in La Grange?
July, with a typical high of 87° and a low of 67°. About 22 days a year reach 90° and 1 reach 100° (Canton L&d 20, MO).
When is the first and last frost in La Grange?
In half of years the last spring frost (32°) comes by April 11 and the first fall frost by October 23, about 194 frost-free days, at Canton L&d 20, MO.
What growing zone is La Grange 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 La Grange?
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 La Grange getting warmer?
Yes: 1991–2020 averaged 0.5° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 98% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in La Grange.
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.