Nodaway County Courthouse · Photo: Americasroof with modifications by Kbh3rd · CC BY-SA 3.0Nights turn raw in Maryville each January, colder than in 83% of U.S. towns
On a normal July day the thermometer tops out near 86°. Precipitation is light here, less than falls on 71% of U.S. towns. March has warmed most since 1901–2000, part of a 0.8° rise. Garden planting can start around April 19; autumn frost returns near October 17.
A year in Maryville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Maryville’s climate
Compared with towns across the U.S., with Maryville’s place in Missouri beside it.
What a year in Maryville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 180 frost-free days a year
In half of years the last 32° night comes by April 19 and the first by October 17. Frost and day counts come from NOAA’s station at Maryville 2e, MO, 1.9 miles from the town’s center, 120 ft lower.
The 2023 USDA map puts Maryville’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −12°. 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 15 inches of snow a winter
Snow, measured at Maryville 2e, MO, falls mostly in January. Precipitation (rain plus melted snow) adds up to 37 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 97 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Maryville
85% of the work is heating. 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 Maryville 2e, MO.
Living with Maryville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
180 frost-free days in zone 5b. The last frost comes by Apr 19 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: April, May, June, September and October. 5.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Maryville from natural hazards, river flooding is the largest share (40%); heat waves, cold waves, winter storms and ice storms together are 15%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Maryville and similar climates
TownRatings has no climate map of the towns around Maryville yet.
Climates most like Maryville’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 |
|---|---|---|---|---|
| Maryville, MO | 15° | 86° | 37" | 15" |
| Fort Madison, IA | 17° | 86° | 39" | 18" |
| Chillicothe, IL | 16° | 86° | 37" | 20" |
| Van Wert, OH | 19° | 84° | 39" | 17" |
| West Lafayette, IN | 18° | 84° | 40" | 19" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Maryville averaged 0.8° warmer than the 1900s. The biggest change is in March (+2.3°).
A smaller shift than in 89% 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 Maryville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Maryville’s place among Missouri’s.
Maryville weather by month
Highs, lows and precipitation from NOAA’s grid at Maryville’s center; snow, wet days and snow on the ground from Maryville 2e, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 34° | 15° | 0.8" | 5.2" | 6 | 17° – 36° |
| February | 39° | 20° | 1.2" | 4.4" | 6 | 19° – 40° |
| March | 52° | 30° | 2.2" | 1.6" | 8 | 34° – 56° |
| April | 64° | 41° | 3.8" | 0.8" | 10 | 44° – 58° |
| May | 74° | 52° | 5.4" | 0.0" | 12 | 57° – 72° |
| June | 83° | 62° | 5.1" | 0.0" | 11 | 68° – 77° |
| July | 86° | 66° | 4.9" | 0.0" | 10 | 71° – 82° |
| August | 85° | 63° | 4.1" | 0.0" | 9 | 68° – 79° |
| September | 78° | 55° | 3.5" | 0.0" | 8 | 60° – 72° |
| October | 66° | 43° | 2.8" | 0.1" | 8 | 47° – 58° |
| November | 51° | 30° | 1.9" | 0.6" | 6 | 32° – 50° |
| December | 38° | 20° | 1.4" | 2.6" | 5 | 14° – 35° |
| Year | 62° | 41° | 37.1" | 15.3" | 97 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 34° to 56°. June is the most reliable, staying within 9°.
Where Maryville’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 Maryville’s center.
- Snow: Maryville 2e, MO (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Maryville 2e, MO, 1.9 miles from the town’s center, 120 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 Maryville’s climate
What is the weather like in Maryville?
A typical July afternoon reaches 86°, a January night drops to 15°, and about 15 inches of snow falls in a normal winter. Colder January nights than 83% of U.S. towns; hotter July afternoons than 57% of U.S. towns.
How cold does it get in Maryville in winter?
January nights average 15°. About 138 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 17°.
How much snow does Maryville get?
About 15 inches in a normal winter at Maryville 2e, MO, most of it in January.
How hot does it get in Maryville?
July, with a typical high of 86° and a low of 66°. About 31 days a year reach 90° and 1 reach 100° (Maryville 2e, MO).
When is the first and last frost in Maryville?
In half of years the last spring frost (32°) comes by April 19 and the first fall frost by October 17, about 180 frost-free days, at Maryville 2e, MO.
What growing zone is Maryville in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −12°.
What is the best time of year to visit Maryville?
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 Maryville getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 89% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Maryville.
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.