Photo: Bobak Ha'Eri · CC BY 3.0Few U.S. towns have cooler summers than Rapid River
Deep winter brings January lows near 12°. Winter nights are cold: in January they are colder than in 92% of U.S. towns. Compared with 1901–2000, the average now sits 1.6° higher. Radiators earn their keep from October to April, the months that average under 50°.
A year in Rapid River at a glance
Each month’s typical high and low, and what it brings.
What stands out about Rapid River’s climate
Compared with towns across the U.S., with Rapid River’s place in Michigan beside it.
What a year in Rapid River feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 137 frost-free days a year
In half of years the last 32° night comes by May 18 and the first by October 4. Frost and day counts come from NOAA’s station at Rapid Rvr 4sse, MI, 4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Rapid River’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −17°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 47 inches of snow a winter
Snow, measured at Escanaba, MI, falls mostly in January. Precipitation (rain plus melted snow) adds up to 31 inches a year; October is the wettest month and February the driest. Rain or snow falls on about 120 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Rapid River
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 Rapid Rvr 4sse, MI.
Living with Rapid River’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
137 frost-free days in zone 5a. The last frost comes by May 18 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 4.
Months with highs of 62–84° and lows of 40° or more: June, July, August and September. 0.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Rapid River from natural hazards, river flooding is the largest share (62%); heat waves, cold waves, winter storms and ice storms together are 26%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Rapid River and similar climates
TownRatings has no climate map of the towns around Rapid River yet.
Climates most like Rapid River’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 |
|---|---|---|---|---|
| Rapid River, MI | 12° | 76° | 31" | 47" |
| Superior, WI | 6° | 76° | 30" | 56" |
| Duluth, MN | 5° | 76° | 30" | 56" |
| Plattsburgh, NY | 9° | 80° | 34" | 50" |
| Milton, VT | 10° | 80° | 40" | 50" |
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 Rapid River averaged 1.6° warmer than the 1900s. The biggest change is in February (+2.5°).
A bigger shift than in 67% 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 Rapid River compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Rapid River’s place among Michigan’s.
Rapid River weather by month
Highs, lows and precipitation from NOAA’s grid at Rapid River’s center; snow, wet days and snow on the ground from Escanaba, MI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 26° | 12° | 1.9" | 13.7" | 9 | 7° – 28° |
| February | 28° | 12° | 1.2" | 10.2" | 7 | 7° – 31° |
| March | 37° | 20° | 1.7" | 6.1" | 7 | 18° – 40° |
| April | 47° | 30° | 2.6" | 4.4" | 10 | 31° – 45° |
| May | 60° | 40° | 3.1" | 0.0" | 12 | 44° – 56° |
| June | 70° | 50° | 3.3" | 0.0" | 13 | 57° – 65° |
| July | 76° | 57° | 3.4" | 0.0" | 10 | 60° – 71° |
| August | 75° | 57° | 3.0" | 0.0" | 10 | 61° – 70° |
| September | 68° | 50° | 3.5" | 0.0" | 11 | 53° – 63° |
| October | 55° | 39° | 3.6" | 0.0" | 13 | 42° – 53° |
| November | 41° | 29° | 2.4" | 2.3" | 9 | 27° – 42° |
| December | 31° | 18° | 1.9" | 10.2" | 9 | 15° – 33° |
| Year | 51° | 34° | 31.3" | 46.9" | 120 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 7° to 31°. June is the most reliable, staying within 8°.
Where Rapid River’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 Rapid River’s center.
- Snow: Escanaba, MI.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Rapid Rvr 4sse, MI, 4 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 Rapid River’s climate
What is the weather like in Rapid River?
A typical July afternoon reaches 76°, a January night drops to 12°, and about 47 inches of snow falls in a normal winter. Colder January nights than 92% of U.S. towns; cooler July afternoons than 98% of U.S. towns.
How cold does it get in Rapid River in winter?
January nights average 12°. About 189 nights a year reach 32° or below and 31 reach 0° or below. In the coldest January of the last 30 years the month averaged 7°.
How much snow does Rapid River get?
About 47 inches in a normal winter at Escanaba, MI, most of it in January.
How hot does it get in Rapid River?
July, with a typical high of 76°. 90° days are rare: none in a normal year at Rapid Rvr 4sse, MI.
When is the first and last frost in Rapid River?
In half of years the last spring frost (32°) comes by May 18 and the first fall frost by October 4, about 137 frost-free days, at Rapid Rvr 4sse, MI.
What growing zone is Rapid River in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −17°.
What is the best time of year to visit Rapid River?
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 Rapid River getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 67% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Rapid River.
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.