Norwich Township’s winters are colder and snowier than most of the U.S.
A typical July afternoon reaches 80°, a January night drops to 12°, and about 66 inches of snow falls in a normal winter.
A year in Norwich Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Norwich Township’s climate
Compared with towns across the U.S., with Norwich Township’s place in Michigan beside it.
What a year in Norwich Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 117 frost-free days a year
In half of years the last 32° night comes by May 27 and the first by September 22. Frost and day counts come from NOAA’s station at Kalkaska 11se, MI, 9 miles from the town’s center, 110 ft lower.
The 2023 USDA map puts Norwich Township’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −18°. 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 66 inches of snow a winter
Snow, measured at Houghton Lk Roscommon Airport, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 34 inches a year; October is the wettest month and February the driest. Rain or snow falls on about 141 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Norwich Township
98% 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 Kalkaska 11se, MI.
Living with Norwich Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
117 frost-free days in zone 5a. The last frost comes by May 27 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 22.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 128 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Norwich Township from natural hazards, river flooding is the largest share (49%); heat waves, cold waves, winter storms and ice storms together are 27%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Norwich Township and its neighbors
Every town next door is within a degree of Norwich Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Norwich 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 |
|---|---|---|---|---|
| Norwich Township, MI | 12° | 80° | 34" | 66" |
| Ashwaubenon, WI | 11° | 80° | 33" | 56" |
| Beekmantown, NY | 9° | 80° | 35" | 80" |
| St. Albans, VT | 9° | 81° | 39" | 80" |
| Hanover, NH | 9° | 82° | 39" | 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 Norwich Township averaged 2.0° warmer than the 1900s. The biggest change is in February (+3.7°).
A bigger shift than in 91% 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 Norwich Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Norwich Township’s place among Michigan’s.
Norwich Township weather by month
Highs, lows and precipitation from NOAA’s grid at Norwich Township’s center; snow, wet days and snow on the ground from Houghton Lk Roscommon Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 27° | 12° | 2.1" | 16.4" | 14 | 29 | 9° – 29° |
| February | 30° | 12° | 1.6" | 13.6" | 11 | 27 | 6° – 31° |
| March | 41° | 19° | 1.9" | 8.3" | 11 | 19 | 19° – 44° |
| April | 54° | 30° | 3.3" | 4.4" | 12 | 4 | 34° – 48° |
| May | 67° | 41° | 3.4" | 0.1" | 12 | 0 | 46° – 60° |
| June | 77° | 51° | 3.6" | 0.0" | 11 | 0 | 59° – 70° |
| July | 80° | 55° | 3.1" | 0.0" | 10 | 0 | 62° – 73° |
| August | 78° | 54° | 3.3" | 0.0" | 10 | 0 | 60° – 71° |
| September | 71° | 46° | 3.1" | 0.0" | 11 | 0 | 53° – 63° |
| October | 57° | 37° | 3.8" | 0.5" | 14 | 0 | 43° – 54° |
| November | 43° | 28° | 2.6" | 7.5" | 13 | 7 | 28° – 43° |
| December | 32° | 19° | 2.2" | 15.1" | 14 | 19 | 16° – 35° |
| Year | 55° | 34° | 33.8" | 65.9" | 141 | 104 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 6° to 31°. August is the most reliable, staying within 10°.
Where Norwich 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 Norwich Township’s center.
- Snow: Houghton Lk Roscommon Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Kalkaska 11se, MI, 9 miles from the town’s center, 110 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 Norwich Township’s climate
What is the weather like in Norwich Township?
A typical July afternoon reaches 80°, a January night drops to 12°, and about 66 inches of snow falls in a normal winter. Colder January nights than 91% of U.S. towns; cooler July afternoons than 91% of U.S. towns.
How cold does it get in Norwich Township in winter?
January nights average 12°. About 188 nights a year reach 32° or below and 20 reach 0° or below. In the coldest January of the last 30 years the month averaged 9°.
How much snow does Norwich Township get?
About 66 inches in a normal winter at Houghton Lk Roscommon Airport, most of it in January and December, with snow on the ground about 104 days a year.
How hot does it get in Norwich Township?
July, with a typical high of 80° and a low of 55°. About 3 days a year reach 90° (Kalkaska 11se, MI).
When is the first and last frost in Norwich Township?
In half of years the last spring frost (32°) comes by May 27 and the first fall frost by September 22, about 117 frost-free days, at Kalkaska 11se, MI.
What growing zone is Norwich Township in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −18°.
What is the best time of year to visit Norwich 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 Norwich Township getting warmer?
Yes: 1991–2020 averaged 2.0° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 91% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Norwich 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.