Frankenmuth, Michigan climate: Normal weather by month, frost dates and records
Frankenmuth's normal year runs from 15°F January nights to 81°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.2°C, January lows of −10°C, July highs of 27°C.
- NOAA stationFrankenmuth (1 mi SE)
- Station IDUSC00202955
- Location43.32°N 83.72°W
- Elevation635 ft (194 m)
- From the center1 miles
- Population5,185
On October 23, the normal high in Frankenmuth is 56°F and the normal low 37°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Frankenmuth.
- Jan 29° 15°
- Feb 32° 15°
- Mar 42° 23°
- Apr 56° 34°
- May 68° 45°
- Jun 78° 55°
- Jul 81° 59°
- Aug 79° 57°
- Sep 73° 50°
- Oct 60° 40°
- Nov 46° 30°
- Dec 35° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Frankenmuth each month?
July is the warmest month, with normal highs of 81°F; January the coldest, with normal lows of 15°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 29°F | 15°F | 22.0°F | – | <1 | 30 | 9 h 20 min |
| February | 32°F | 15°F | 23.5°F | – | <1 | 27 | 10 h 30 min |
| March | 42°F | 23°F | 32.9°F | – | <1 | 25 | 11 h 50 min |
| April | 56°F | 34°F | 45.2°F | – | <1 | 14 | 13 h 20 min |
| May | 68°F | 45°F | 56.3°F | – | <1 | 2 | 14 h 40 min |
| June | 78°F | 55°F | 66.6°F | – | 1 | <1 | 15 h 20 min |
| July | 81°F | 59°F | 70.1°F | – | 3 | <1 | 15 h 10 min |
| August | 79°F | 57°F | 68.1°F | – | 1 | <1 | 14 h |
| September | 73°F | 50°F | 61.4°F | – | <1 | <1 | 12 h 30 min |
| October | 60°F | 40°F | 49.6°F | – | <1 | 6 | 11 h 10 min |
| November | 46°F | 30°F | 38.2°F | – | <1 | 19 | 9 h 40 min |
| December | 35°F | 22°F | 28.3°F | – | <1 | 28 | 9 h |
| Year (annual) | 57°F | 37°F | 46.8°F | – | 5 | 149 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | −2°C | −10°C | −5.6°C |
| February | 0°C | −9°C | −4.7°C |
| March | 6°C | −5°C | 0.5°C |
| April | 13°C | 1°C | 7.3°C |
| May | 20°C | 7°C | 13.5°C |
| June | 25°C | 13°C | 19.2°C |
| July | 27°C | 15°C | 21.2°C |
| August | 26°C | 14°C | 20.1°C |
| September | 23°C | 10°C | 16.3°C |
| October | 15°C | 4°C | 9.8°C |
| November | 8°C | −1°C | 3.4°C |
| December | 2°C | −6°C | −2.1°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Saginaw #3 (14 miles away), gets 41 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00202955; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Frankenmuth?
Normal highs sit between 65°F and 85°F in May, June, July, August and September.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00202955.
When is the last frost in Frankenmuth?
In Frankenmuth, the last spring frost (32°F) comes after May 3 in half of years and after May 20 in one year in ten; the first autumn frost comes before October 12 in half of years and before September 28 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 31 year in 10 after May 20; 9 in 10 after April 19
- First autumn frost, half of years before
- October 121 year in 10 before September 28; 9 in 10 before October 27
NOAA puts the median frost-free season at 161 days, and the season without a hard freeze (28°F) at 185 days.
A hard freeze (28°F) comes after April 22 in half of springs and before October 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Frankenmuth in zone 6a in ZIP code 48734, the nearest ZIP area.
Frost dates for every NOAA station in Michigan · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00202955; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Frankenmuth?
In a normal year in Frankenmuth, 5 days a year reach 90°F and 149 nights fall to 32°F or colder.
- Days at 90°F or more
- 5a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 149a normal year
- Days that stay below freezing
- 61high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00202955.
How sunny is Frankenmuth?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Frankenmuth, 3.7 kWh per square metre a day. July is the sunniest month (80%) and December the cloudiest (53%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 55% | 1.4 |
| February | 60% | 2.3 |
| March | 66% | 3.5 |
| April | 68% | 4.6 |
| May | 70% | 5.5 |
| June | 76% | 6.2 |
| July | 80% | 6.2 |
| August | 78% | 5.3 |
| September | 75% | 4.1 |
| October | 65% | 2.6 |
| November | 61% | 1.6 |
| December | 53% | 1.1 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Frankenmuth need?
A normal year in Frankenmuth brings 7,073 heating degree days, 32% more than the median U.S. place (5,373), and 481 cooling degree days, 47% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,439 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,334 | 0 |
| February | 1,163 | 0 |
| March | 997 | 1 |
| April | 597 | 1 |
| May | 298 | 26 |
| June | 57 | 105 |
| July | 15 | 171 |
| August | 31 | 127 |
| September | 156 | 47 |
| October | 482 | 3 |
| November | 805 | 0 |
| December | 1,138 | 0 |
| Year (annual) | 7,073 | 481 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00202955. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Frankenmuth's climate compare?
Frankenmuth is warmer than 68 of the other 139 places with their own NOAA record in Michigan. Across the 7,247 U.S. stations with normals, its annual mean of 46.8°F is warmer than 27%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Frankenmuth share this climate record?
6 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Bridgeport, MI6,841 people · 9 mi NW
- Buena Vista, MI5,904 people · 11 mi NW
- Clio, MI2,475 people · 10 mi S
- Montrose, MI1,708 people · 13 mi SW
- Birch Run, MI1,536 people · 6 mi SW
- Burt, MI1,430 people · 11 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Frankenmuth's climate
What is the coldest month in Frankenmuth?
January, with a normal high of 29°F and a normal low of 15°F. The warmest is July (81°F by day, 59°F at night).
Does it snow in Frankenmuth?
Yes. NOAA publishes no 1991-2020 snowfall normal for Frankenmuth's NOAA station; the nearest record that keeps one, Saginaw #3 (14 miles away), records 41 inches of snow in a normal year.
What plant hardiness zone is Frankenmuth in?
The USDA's 2023 map puts Frankenmuth in zone 6a in ZIP code 48734, the nearest ZIP area.
How late can frost come in Frankenmuth?
In half of years the last 32°F night comes after May 3; in one year in ten it comes after May 20. Waiting until May 20 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Michigan climateThe statewide normals and every place in the state
- Vassar, MI7 miles from this station, 46.3°F a year
- Burton, MI19 miles from this station, 47.2°F a year
- Caro, MI20 miles from this station, 46.8°F a year
- Essexville, MI22 miles from this station, 47.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made