Marquette, Michigan climate: Normal weather by month, frost dates and records
Marquette's normal year runs from 12°F January nights to 75°F July afternoons, with 30.2 inches of precipitation and 102 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.9°C, January lows of −11°C, July highs of 24°C, 767 mm of precipitation a year.
- NOAA stationMarquette
- Station IDUSW00014838
- Location46.55°N 87.38°W
- Elevation665 ft (203 m)
- Population21,845
On October 14, the normal high in Marquette is 55°F and the normal low 41°F, and the chance of measurable rain or snow is 47%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Marquette.
- Jan 25° 12°
- Feb 27° 13°
- Mar 35° 21°
- Apr 46° 31°
- May 59° 41°
- Jun 68° 50°
- Jul 75° 58°
- Aug 74° 58°
- Sep 67° 52°
- Oct 54° 40°
- Nov 41° 29°
- Dec 30° 19°
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 Marquette each month?
July is the warmest month, with normal highs of 75°F; January the coldest, with normal lows of 12°F. The most precipitation falls in October (3.43 in), the least in February (1.47 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 25°F | 12°F | 18.5°F | 1.86 | 25.1 | 18 | <1 | 31 | 9 h |
| February | 27°F | 13°F | 19.7°F | 1.47 | 20.9 | 12 | <1 | 27 | 10 h 20 min |
| March | 35°F | 21°F | 28.2°F | 1.59 | 14.2 | 11 | <1 | 27 | 11 h 50 min |
| April | 46°F | 31°F | 38.4°F | 2.74 | 8.4 | 10 | <1 | 16 | 13 h 30 min |
| May | 59°F | 41°F | 49.8°F | 2.90 | 0.3 | 12 | <1 | 3 | 15 h |
| June | 68°F | 50°F | 59.0°F | 3.05 | 0.0 | 12 | 1 | <1 | 15 h 50 min |
| July | 75°F | 58°F | 66.2°F | 3.11 | 0.0 | 11 | 1 | <1 | 15 h 30 min |
| August | 74°F | 58°F | 66.2°F | 2.31 | 0.0 | 11 | 1 | <1 | 14 h 20 min |
| September | 67°F | 52°F | 59.4°F | 3.34 | 0.0 | 13 | <1 | <1 | 12 h 40 min |
| October | 54°F | 40°F | 47.0°F | 3.43 | 0.9 | 15 | <1 | 3 | 11 h |
| November | 41°F | 29°F | 34.5°F | 2.42 | 11.1 | 13 | <1 | 18 | 9 h 30 min |
| December | 30°F | 19°F | 24.4°F | 1.98 | 21.1 | 14 | <1 | 29 | 8 h 40 min |
| Year (annual) | 50°F | 35°F | 42.6°F | 30.20 | 102.0 | 152 | 3 | 153 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −4°C | −11°C | −7.5°C | 47 mm | 64 cm |
| February | −3°C | −11°C | −6.8°C | 37 mm | 53 cm |
| March | 2°C | −6°C | −2.1°C | 40 mm | 36 cm |
| April | 8°C | −1°C | 3.6°C | 70 mm | 21 cm |
| May | 15°C | 5°C | 9.9°C | 74 mm | 1 cm |
| June | 20°C | 10°C | 15.0°C | 77 mm | 0 cm |
| July | 24°C | 14°C | 19.0°C | 79 mm | 0 cm |
| August | 24°C | 15°C | 19.0°C | 59 mm | 0 cm |
| September | 20°C | 11°C | 15.2°C | 85 mm | 0 cm |
| October | 12°C | 4°C | 8.3°C | 87 mm | 2 cm |
| November | 5°C | −2°C | 1.4°C | 61 mm | 28 cm |
| December | −1°C | −7°C | −4.2°C | 50 mm | 54 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00014838; 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 Marquette?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, August has the fewest days with rain (11).
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 USW00014838.
When is the last frost in Marquette?
In Marquette, the last spring frost (32°F) comes after May 8 in half of years and after May 23 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 6 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 81 year in 10 after May 23; 9 in 10 after April 26
- First autumn frost, half of years before
- October 211 year in 10 before October 6; 9 in 10 before November 5
NOAA puts the median frost-free season at 164 days, and the season without a hard freeze (28°F) at 187 days.
A hard freeze (28°F) comes after April 27 in half of springs and before November 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Marquette in zone 5b in ZIP code 49855, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Marquette's NOAA station is in zone 6a: the coldest night of a typical year reaches −8°F (27 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Michigan · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00014838; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Marquette?
In a normal year in Marquette, 3 days a year reach 90°F, 153 nights fall to 32°F or colder and 152 days bring measurable precipitation.
- Days at 90°F or more
- 3a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 153a normal year
- Days that stay below freezing
- 77high of 32°F or less
- Days with 0.01 inch of precipitation
- 152a normal year
- Days with 1 inch of snow or more
- 32a normal year
The highest temperature in this station's record (since 1860) is 108°F, on July 15, 1901; the lowest is −33°F, on February 8, 1861.
The wettest calendar year on that record is 1881, with 42.83 in; the snowiest season is 1959–60, with 188.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00014838; records: ACIS (NOAA Regional Climate Centers), station USW00014838. Records use complete months only; a month missing more than three days is left out.
How sunny is Marquette?
Over a year 67% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Marquette, 3.4 kWh per square metre a day. July is the sunniest month (77%) and December the cloudiest (48%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 49% | 1.1 |
| February | 55% | 1.9 |
| March | 63% | 3.2 |
| April | 66% | 4.4 |
| May | 69% | 5.4 |
| June | 72% | 5.9 |
| July | 77% | 6.0 |
| August | 75% | 5.0 |
| September | 70% | 3.7 |
| October | 60% | 2.2 |
| November | 52% | 1.3 |
| December | 48% | 0.9 |
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 Marquette need?
A normal year in Marquette brings 8,398 heating degree days, 56% more than the median U.S. place (5,373), and 270 cooling degree days, 70% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,776 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,441 | 0 |
| February | 1,268 | 0 |
| March | 1,142 | 0 |
| April | 798 | 0 |
| May | 479 | 6 |
| June | 213 | 33 |
| July | 69 | 104 |
| August | 56 | 93 |
| September | 198 | 31 |
| October | 561 | 2 |
| November | 914 | 0 |
| December | 1,259 | 0 |
| Year (annual) | 8,398 | 270 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00014838. 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.
Has Marquette been warmer than normal lately?
2025 averaged 43.1°F, 0.5°F above the 1991-2020 normal of 42.6°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 45.4°F | +2.8°F | 23.24 | 49.2 |
| 2022 | 42.1°F | −0.5°F | 28.60 | 74.0 |
| 2023 | 44.4°F | +1.8°F | 33.63 | 77.1 |
| 2024 | 46.5°F | +3.9°F | 32.17 | 45.5 |
| 2025 | 43.1°F | +0.5°F | 32.64 | 98.9 |
Over 144 complete years from 1861 to 2025, the station's annual mean temperature rose at a fitted 3.1°F per century (+0.17°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00014838; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Marquette's climate compare?
Marquette is warmer than 19 of the other 139 places with their own NOAA record in Michigan, and wetter than 12. Across the 7,247 U.S. stations with normals, its annual mean of 42.6°F is warmer than 11%.
In the Köppen classification computed from these normals, Marquette is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Marquette share this climate record?
2 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.
- Harvey, MI3,080 people · 4 mi S
- Trowbridge Park, MI2,271 people · 3 mi W
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Marquette's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Marquette. This page uses Marquette; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Marquette station USW00094850 | 8 mi W | 1,411 ft | 40.3°F | 7°F | 76°F | 36.7 | 197 | May 22 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Marquette's climate
What is the coldest month in Marquette?
January, with a normal high of 25°F and a normal low of 12°F. The warmest is July (75°F by day, 58°F at night).
Does it snow in Marquette?
Yes: 102 inches in a normal year, falling on 65 days with 0.1 inch or more, the most in January (25.1 inches).
What is the rainiest month in Marquette?
October, with 3.43 in of precipitation in a normal year; the driest is February with 1.47 in.
What plant hardiness zone is Marquette in?
The USDA's 2023 map puts Marquette in zone 5b in ZIP code 49855, the nearest ZIP area. By the same method at Marquette's NOAA station, the coldest night of a typical year reaches −8°F (27 years, 1991-2020): zone 6a.
How late can frost come in Marquette?
In half of years the last 32°F night comes after May 8; in one year in ten it comes after May 23. Waiting until May 23 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Marquette in OctoberThis month day by day, its records and recent years
- Michigan climateThe statewide normals and every place in the state
- Ki Sawyer Wastewater Treatment Plant, MI15 miles from this station, 41.9°F a year
- Ishpeming, MI15 miles from this station, 39.9°F a year
- Clarksburg, MI22 miles from this station, 38.3°F a year
- Chatham, MI26 miles from this station, 40.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made