Green City Presbyterian Church · Photo: Jon Roanhaus · CC BY-SA 4.0Winter nights in Green City are colder than in 80% of U.S. towns
High summer brings afternoon highs near 86°. May is the wettest month, January the driest. It is a dry place: less rain and snow fall here than on 62% of U.S. towns. Long walks are most pleasant from April to June and September to October, when afternoons reach 63–82°.
A year in Green City at a glance
Each month’s typical high and low, and what it brings.
What stands out about Green City’s climate
Compared with towns across the U.S., with Green City’s place in Missouri beside it.
What a year in Green City feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 169 frost-free days a year
In half of years the last 32° night comes by April 26 and the first by October 14. Frost and day counts come from NOAA’s station at Green City 5n, MO, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Green City’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 Milan, 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 92 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Green City
88% 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 Green City 5n, MO.
Living with Green City’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
169 frost-free days in zone 5b. The last frost comes by Apr 26 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 14.
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 Green City from natural hazards, river flooding is the largest share (31%); heat waves, cold waves, winter storms and ice storms together are 24%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Green City and similar climates
TownRatings has no climate map of the towns around Green City yet.
Climates most like Green City’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 |
|---|---|---|---|---|
| Green City, MO | 16° | 86° | 40" | 17" |
| Canton, IL | 17° | 86° | 39" | 14" |
| Van Wert, OH | 19° | 84° | 39" | 17" |
| West Lafayette, IN | 18° | 84° | 40" | 19" |
| Huntingdon, PA | 21° | 85° | 40" | 26" |
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 Green City averaged 0.5° warmer than the 1900s. The biggest change is in December (+1.9°).
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 Green City compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Green City’s place among Missouri’s.
Green City weather by month
Highs, lows and precipitation from NOAA’s grid at Green City’s center; snow, wet days and snow on the ground from Milan, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 16° | 1.3" | 5.3" | 6 | 11 | 18° – 37° |
| February | 39° | 20° | 1.6" | 4.6" | 6 | 7 | 18° – 41° |
| March | 51° | 30° | 2.4" | 2.0" | 7 | 3 | 33° – 54° |
| April | 63° | 41° | 3.9" | 0.4" | 9 | 0 | 44° – 58° |
| May | 72° | 52° | 5.6" | 0.0" | 11 | 0 | 57° – 71° |
| June | 82° | 61° | 5.1" | 0.0" | 9 | 0 | 68° – 75° |
| July | 86° | 65° | 4.4" | 0.0" | 8 | 0 | 70° – 83° |
| August | 84° | 63° | 4.3" | 0.0" | 8 | 0 | 68° – 79° |
| September | 77° | 55° | 4.1" | 0.0" | 7 | 0 | 60° – 72° |
| October | 64° | 43° | 3.0" | 0.1" | 8 | 0 | 47° – 59° |
| November | 50° | 31° | 2.3" | 0.7" | 6 | 1 | 32° – 50° |
| December | 38° | 22° | 1.6" | 3.9" | 6 | 7 | 15° – 38° |
| Year | 62° | 42° | 39.6" | 17.0" | 92 | 30 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 15° to 38°. June is the most reliable, staying within 8°.
Where Green City’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 Green City’s center.
- Snow: Milan, MO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Green City 5n, MO, 6 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 Green City’s climate
What is the weather like in Green City?
A typical July afternoon reaches 86°, a January night drops to 16°, and about 17 inches of snow falls in a normal winter. Colder January nights than 80% of U.S. towns; hotter July afternoons than 55% of U.S. towns.
How cold does it get in Green City in winter?
January nights average 16°. About 139 nights a year reach 32° or below and 12 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.
How much snow does Green City get?
About 17 inches in a normal winter at Milan, MO, most of it in January, with snow on the ground about 30 days a year.
How hot does it get in Green City?
July, with a typical high of 86° and a low of 65°. About 25 days a year reach 90° and 1 reach 100° (Green City 5n, MO).
When is the first and last frost in Green City?
In half of years the last spring frost (32°) comes by April 26 and the first fall frost by October 14, about 169 frost-free days, at Green City 5n, MO.
What growing zone is Green City 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 Green City?
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 Green City 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 Green City.
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.