Photo: NOAA Great Lakes Environmental Research Laboratory · CC BY-SA 2.0Grand Island Township gets about 161 inches of snow a winter, more than all but 42 U.S. towns
Sunny July days climb to about 73°. From frosty January to warm July, readings climb 61°. By July afternoons alone, it runs cooler than almost every U.S. town. Seedlings are safe outdoors from about May 16, with the first autumn frost due around October 14.
A year in Grand Island Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Grand Island Township’s climate
Compared with towns across the U.S., with Grand Island Township’s place in Michigan beside it.
What a year in Grand Island Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 148 frost-free days a year
In half of years the last 32° night comes by May 16 and the first by October 14. Frost and day counts come from NOAA’s station at Munising, MI, 8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Grand Island Township’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 161 inches of snow a winter
Snow, measured at Munising, MI, falls mostly in January. Precipitation (rain plus melted snow) adds up to 36 inches a year; October is the wettest month and March the driest. Rain or snow falls on about 176 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Grand Island 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 Munising, MI.
Living with Grand Island Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
148 frost-free days in zone 5b. The last frost comes by May 16 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: June, July, August and September. 44 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Grand Island Township from natural hazards, river flooding is the largest share (57%); heat waves, cold waves, winter storms and ice storms together are 13%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Grand Island Township and its neighbors
Au Train Township has the coldest January nights next door (9°, 3° colder) and Au Train Township the hottest July afternoons (77°, 4° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Grand Island 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 |
|---|---|---|---|---|
| Grand Island Township, MI | 12° | 73° | 36" | 161" |
| Incline Village, NV | 22° | 73° | 38" | 179" |
| Morristown, VT | 7° | 78° | 43" | 139" |
| Attica, NY | 14° | 77° | 42" | 109" |
| Summit Park, UT | 19° | 79° | 30" | 153" |
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 Grand Island Township averaged 1.2° warmer than the 1900s. The biggest change is in February (+2.5°).
A smaller shift than in 59% 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 Grand Island Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Grand Island Township’s place among Michigan’s.
Grand Island Township weather by month
Highs, lows and precipitation from NOAA’s grid at Grand Island Township’s center; snow, wet days and snow on the ground from Munising, MI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 24° | 12° | 2.8" | 46.0" | 22 | 31 | 7° – 28° |
| February | 26° | 12° | 1.8" | 32.4" | 17 | 29 | 6° – 31° |
| March | 35° | 19° | 1.8" | 17.9" | 12 | 31 | 15° – 39° |
| April | 45° | 30° | 2.6" | 9.6" | 11 | 18 | 31° – 45° |
| May | 59° | 40° | 3.1" | 0.0" | 13 | 0 | 43° – 55° |
| June | 68° | 49° | 3.2" | 0.0" | 12 | 0 | 55° – 64° |
| July | 73° | 55° | 3.5" | 0.0" | 12 | 0 | 58° – 69° |
| August | 73° | 56° | 3.0" | 0.0" | 10 | 0 | 59° – 68° |
| September | 66° | 50° | 3.9" | 0.0" | 14 | 0 | 52° – 63° |
| October | 53° | 39° | 4.2" | 1.1" | 18 | 1 | 41° – 52° |
| November | 40° | 29° | 3.1" | 14.9" | 17 | 12 | 27° – 42° |
| December | 30° | 19° | 2.7" | 39.1" | 19 | 26 | 14° – 33° |
| Year | 49° | 34° | 35.7" | 161.0" | 176 | 148 |
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°. June is the most reliable, staying within 9°.
Where Grand Island 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 Grand Island Township’s center.
- Snow: Munising, MI.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Munising, MI, 8 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 Grand Island Township’s climate
What is the weather like in Grand Island Township?
A typical July afternoon reaches 73°, a January night drops to 12°, and about 161 inches of snow falls in a normal winter. Colder January nights than 91% of U.S. towns; cooler July afternoons than all but 150 U.S. towns.
How cold does it get in Grand Island Township in winter?
January nights average 12°. About 169 nights a year reach 32° or below and 13 reach 0° or below. In the coldest January of the last 30 years the month averaged 7°.
How much snow does Grand Island Township get?
About 161 inches in a normal winter at Munising, MI, most of it in January, with snow on the ground about 148 days a year.
How hot does it get in Grand Island Township?
July, with a typical high of 73° and a low of 55°. About 1 days a year reach 90° (Munising, MI).
When is the first and last frost in Grand Island Township?
In half of years the last spring frost (32°) comes by May 16 and the first fall frost by October 14, about 148 frost-free days, at Munising, MI.
What growing zone is Grand Island Township 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 Grand Island Township?
By one simple rule (highs of 62–84° and lows of 40° or more), June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Grand Island Township getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 59% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Grand Island 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.