Photo: ProfDEH · Public domainMetamora’s winters are colder but less snowy than most of the U.S.
A typical July afternoon reaches 85°, a January night drops to 16°, and about 21 inches of snow falls in a normal winter.
A year in Metamora at a glance
Each month’s typical high and low, and what it brings.
What stands out about Metamora’s climate
Compared with towns across the U.S., with Metamora’s place in Illinois beside it.
What a year in Metamora feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 178 frost-free days a year
In half of years the last 32° night comes by April 21 and the first by October 17. Frost and day counts come from NOAA’s station at Congerville 2nw, IL, 14 miles from the town’s center, 160 ft lower.
The 2023 USDA map puts Metamora’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −10°. 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 21 inches of snow a winter
Snow, measured at Eureka, IL, falls mostly in February. Precipitation (rain plus melted snow) adds up to 38 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 112 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Metamora
84% 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 Congerville 2nw, IL.
Living with Metamora’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
178 frost-free days in zone 5b. The last frost comes by Apr 21 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: May, June, August, September and October. 0.2 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Metamora from natural hazards, river flooding is the largest share (53%); heat waves, cold waves, winter storms and ice storms together are 25%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Metamora and similar climates
TownRatings has no climate map of the towns around Metamora yet.
Climates most like Metamora’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 |
|---|---|---|---|---|
| Metamora, IL | 16° | 85° | 38" | 21" |
| Centerville, IA | 15° | 85° | 38" | 22" |
| Defiance, OH | 19° | 85° | 37" | 24" |
| Peru, IN | 19° | 84° | 40" | 21" |
| Kirksville, MO | 17° | 86° | 41" | 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 Metamora averaged 1.5° warmer than the 1900s. The biggest change is in December (+2.8°).
A bigger shift than in 58% 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 Metamora compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Metamora’s place among Illinois’.
Metamora weather by month
Highs, lows and precipitation from NOAA’s grid at Metamora’s center; snow, wet days and snow on the ground from Eureka, IL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 32° | 16° | 2.0" | 5.2" | 9 | 17° – 36° |
| February | 37° | 20° | 1.8" | 6.3" | 9 | 16° – 40° |
| March | 50° | 30° | 2.5" | 3.1" | 9 | 32° – 54° |
| April | 63° | 40° | 3.8" | 0.3" | 11 | 43° – 58° |
| May | 74° | 51° | 4.6" | 0.0" | 12 | 56° – 71° |
| June | 82° | 61° | 4.1" | 0.0" | 10 | 67° – 75° |
| July | 85° | 64° | 4.1" | 0.0" | 9 | 69° – 81° |
| August | 83° | 62° | 3.6" | 0.0" | 9 | 67° – 79° |
| September | 78° | 54° | 3.4" | 0.0" | 7 | 60° – 71° |
| October | 65° | 43° | 3.1" | 0.0" | 10 | 49° – 60° |
| November | 50° | 32° | 2.6" | 1.4" | 8 | 33° – 50° |
| December | 37° | 22° | 2.2" | 4.9" | 8 | 16° – 40° |
| Year | 61° | 41° | 37.9" | 21.2" | 112 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 16° to 40°. June is the most reliable, staying within 8°.
Where Metamora’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 Metamora’s center.
- Snow: Eureka, IL.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Congerville 2nw, IL, 14 miles from the town’s center, 160 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 Metamora’s climate
What is the weather like in Metamora?
A typical July afternoon reaches 85°, a January night drops to 16°, and about 21 inches of snow falls in a normal winter. Colder January nights than 80% of U.S. towns; cooler July afternoons than 52% of U.S. towns.
How cold does it get in Metamora in winter?
January nights average 16°. About 134 nights a year reach 32° or below and 9 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How much snow does Metamora get?
About 21 inches in a normal winter at Eureka, IL, most of it in February.
How hot does it get in Metamora?
July, with a typical high of 85° and a low of 64°. About 24 days a year reach 90° (Congerville 2nw, IL).
When is the first and last frost in Metamora?
In half of years the last spring frost (32°) comes by April 21 and the first fall frost by October 17, about 178 frost-free days, at Congerville 2nw, IL.
What growing zone is Metamora in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −10°.
What is the best time of year to visit Metamora?
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 Metamora getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 58% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Metamora.
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.