Few U.S. towns have colder winter nights than Lewis Township
July afternoons average 80°. Summers stay cool: July afternoons here are cooler than in 93% of U.S. towns. The latest 30-year average runs 1.8° warmer than 1901–2000’s, with December up the most. The frost-free window for a garden runs roughly May 9 to September 30.
A year in Lewis Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Lewis Township’s climate
Compared with towns across the U.S., with Lewis Township’s place in Minnesota beside it.
What a year in Lewis Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 142 frost-free days a year
In half of years the last 32° night comes by May 9 and the first by September 30. Frost and day counts come from NOAA’s station at Mora, MN, 14 miles from the town’s center, 220 ft lower.
The 2023 USDA map puts Lewis Township’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −27°. 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 32 inches of snow a winter
Snow, measured at Onamia Rs, MN, falls mostly in January and March. Precipitation (rain plus melted snow) adds up to 31 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 89 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Lewis Township
96% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Mora, MN.
Living with Lewis Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
142 frost-free days in zone 4a. The last frost comes by May 9 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 30.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 6.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Lewis Township from natural hazards, river flooding is the largest share (65%); heat waves, cold waves, winter storms and ice storms together are 19%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Lewis Township and its neighbors
Every town next door is within a degree of Lewis Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Lewis 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 |
|---|---|---|---|---|
| Lewis Township, MN | 2° | 80° | 31" | 32" |
| Brookings, SD | 5° | 82° | 27" | 36" |
| Antigo, WI | 5° | 79° | 32" | 54" |
| Estherville, IA | 7° | 82° | 31" | 38" |
| Kingsford, MI | 5° | 80° | 29" | 61" |
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 Lewis Township averaged 1.8° warmer than the 1900s. The biggest change is in December (+4.2°).
A bigger shift than in 82% 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 Lewis Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lewis Township’s place among Minnesota’s.
Lewis Township weather by month
Highs, lows and precipitation from NOAA’s grid at Lewis Township’s center; snow, wet days and snow on the ground from Onamia Rs, MN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 20° | 2° | 0.7" | 8.1" | 5 | −1° – 25° |
| February | 26° | 6° | 0.8" | 5.2" | 5 | 4° – 30° |
| March | 39° | 18° | 1.4" | 7.4" | 7 | 19° – 42° |
| April | 53° | 31° | 2.5" | 2.1" | 9 | 32° – 50° |
| May | 66° | 43° | 3.7" | 0.0" | 10 | 49° – 61° |
| June | 75° | 53° | 4.5" | 0.0" | 10 | 60° – 68° |
| July | 80° | 58° | 4.4" | 0.0" | 9 | 62° – 74° |
| August | 78° | 56° | 4.0" | 0.0" | 8 | 61° – 70° |
| September | 70° | 48° | 3.2" | 0.0" | 8 | 51° – 64° |
| October | 55° | 36° | 2.9" | 0.3" | 8 | 38° – 50° |
| November | 38° | 23° | 1.5" | 4.5" | 5 | 21° – 42° |
| December | 25° | 10° | 1.0" | 4.0" | 5 | 5° – 27° |
| Year | 52° | 32° | 30.6" | 31.6" | 89 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 4° to 30°. June is the most reliable, staying within 8°.
Where Lewis 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 Lewis Township’s center.
- Snow: Onamia Rs, MN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Mora, MN, 14 miles from the town’s center, 220 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 Lewis Township’s climate
What is the weather like in Lewis Township?
A typical July afternoon reaches 80°, a January night drops to 2°, and about 32 inches of snow falls in a normal winter. Colder January nights than all but 80 U.S. towns; cooler July afternoons than 93% of U.S. towns.
How cold does it get in Lewis Township in winter?
January nights average 2°. About 179 nights a year reach 32° or below and 41 reach 0° or below. In the coldest January of the last 30 years the month averaged −1°.
How much snow does Lewis Township get?
About 32 inches in a normal winter at Onamia Rs, MN, most of it in January and March.
How hot does it get in Lewis Township?
July, with a typical high of 80° and a low of 58°. About 5 days a year reach 90° (Mora, MN).
When is the first and last frost in Lewis Township?
In half of years the last spring frost (32°) comes by May 9 and the first fall frost by September 30, about 142 frost-free days, at Mora, MN.
What growing zone is Lewis Township in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −27°.
What is the best time of year to visit Lewis Township?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Lewis Township getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 82% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lewis 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.