Farmington, Michigan climate: Normal weather by month, frost dates and records
Farmington's normal year runs from 16°F January nights to 83°F July afternoons, with 33.0 inches of precipitation and 36 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.7°C, January lows of −9°C, July highs of 28°C, 839 mm of precipitation a year.
- NOAA stationFarmington
- Station IDUSC00202691
- Location42.47°N 83.36°W
- Elevation720 ft (220 m)
- From the centerunder 1 mile
- Population11,547
On October 24, the normal high in Farmington is 57°F and the normal low 37°F, and the chance of measurable rain or snow is 36%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Farmington.
- Jan 30° 16°
- Feb 34° 16°
- Mar 44° 24°
- Apr 57° 34°
- May 69° 46°
- Jun 78° 56°
- Jul 83° 60°
- Aug 81° 59°
- Sep 74° 51°
- Oct 60° 40°
- Nov 47° 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 Farmington each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 16°F. The most precipitation falls in May (3.61 in), the least in February (1.75 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 30°F | 16°F | 23.0°F | 2.34 | 9.8 | 13 | <1 | 29 | 9 h 20 min |
| February | 34°F | 16°F | 24.7°F | 1.75 | 10.6 | 10 | <1 | 27 | 10 h 30 min |
| March | 44°F | 24°F | 33.8°F | 2.07 | 4.7 | 10 | <1 | 25 | 11 h 50 min |
| April | 57°F | 34°F | 45.4°F | 3.05 | 1.5 | 12 | <1 | 12 | 13 h 20 min |
| May | 69°F | 46°F | 57.1°F | 3.61 | 0.0 | 13 | <1 | 1 | 14 h 30 min |
| June | 78°F | 56°F | 67.2°F | 3.31 | 0.0 | 11 | 2 | <1 | 15 h 20 min |
| July | 83°F | 60°F | 71.4°F | 3.21 | 0.0 | 10 | 5 | <1 | 15 h |
| August | 81°F | 59°F | 69.8°F | 3.17 | 0.0 | 9 | 2 | <1 | 14 h |
| September | 74°F | 51°F | 62.2°F | 3.35 | 0.0 | 9 | 2 | <1 | 12 h 30 min |
| October | 60°F | 40°F | 50.1°F | 2.65 | 0.0 | 12 | <1 | 5 | 11 h 10 min |
| November | 47°F | 30°F | 38.2°F | 2.48 | 2.3 | 11 | <1 | 19 | 9 h 50 min |
| December | 35°F | 22°F | 28.6°F | 2.03 | 7.1 | 12 | <1 | 28 | 9 h 10 min |
| Year (annual) | 58°F | 38°F | 47.6°F | 33.02 | 36.0 | 129 | 11 | 146 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −1°C | −9°C | −5.0°C | 59 mm | 25 cm |
| February | 1°C | −9°C | −4.1°C | 44 mm | 27 cm |
| March | 6°C | −4°C | 1.0°C | 53 mm | 12 cm |
| April | 14°C | 1°C | 7.4°C | 77 mm | 4 cm |
| May | 20°C | 8°C | 13.9°C | 92 mm | 0 cm |
| June | 26°C | 13°C | 19.6°C | 84 mm | 0 cm |
| July | 28°C | 15°C | 21.9°C | 82 mm | 0 cm |
| August | 27°C | 15°C | 21.0°C | 81 mm | 0 cm |
| September | 23°C | 11°C | 16.8°C | 85 mm | 0 cm |
| October | 16°C | 4°C | 10.1°C | 67 mm | 0 cm |
| November | 8°C | −1°C | 3.4°C | 63 mm | 6 cm |
| December | 2°C | −6°C | −1.9°C | 52 mm | 18 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00202691; 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 Farmington?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (9).
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 USC00202691.
When is the last frost in Farmington?
In Farmington, the last spring frost (32°F) comes after May 1 in half of years and after May 16 in one year in ten; the first autumn frost comes before October 17 in half of years and before October 1 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 11 year in 10 after May 16; 9 in 10 after April 19
- First autumn frost, half of years before
- October 171 year in 10 before October 1; 9 in 10 before October 29
NOAA puts the median frost-free season at 165 days, and the season without a hard freeze (28°F) at 187 days.
A hard freeze (28°F) comes after April 22 in half of springs and before October 27 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Farmington in zones 6a to 6b across its 2 ZIP code areas (6b in 48336, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Farmington's NOAA station is in zone 6b: the coldest night of a typical year reaches −5°F (15 complete years).
Frost dates for every NOAA station in Michigan · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00202691; 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.
What hardiness zone is each Farmington ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Farmington's 2 ZIP code areas run from zone 6a to 6b: 1 in 6a and 1 in 6b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Farmington?
In a normal year in Farmington, 11 days a year reach 90°F, 146 nights fall to 32°F or colder and 129 days bring measurable precipitation.
- Days at 90°F or more
- 11a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 146a normal year
- Days that stay below freezing
- 53high of 32°F or less
- Days with 0.01 inch of precipitation
- 129a normal year
- Days with 1 inch of snow or more
- 13a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00202691.
How sunny is Farmington?
Over a year 71% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Farmington, 3.8 kWh per square metre a day. July is the sunniest month (80%) and December the cloudiest (54%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.6 |
| February | 62% | 2.4 |
| March | 66% | 3.5 |
| April | 68% | 4.7 |
| May | 70% | 5.5 |
| June | 76% | 6.2 |
| July | 80% | 6.2 |
| August | 78% | 5.3 |
| September | 77% | 4.3 |
| October | 68% | 2.8 |
| November | 63% | 1.8 |
| December | 54% | 1.2 |
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 Farmington need?
A normal year in Farmington brings 6,867 heating degree days, 28% more than the median U.S. place (5,373), and 573 cooling degree days, 37% 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 2,601 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,302 | 0 |
| February | 1,128 | 0 |
| March | 968 | 1 |
| April | 588 | 0 |
| May | 268 | 25 |
| June | 50 | 116 |
| July | 10 | 207 |
| August | 17 | 166 |
| September | 136 | 54 |
| October | 466 | 5 |
| November | 804 | 0 |
| December | 1,128 | 0 |
| Year (annual) | 6,867 | 573 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00202691. 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 Farmington been warmer than normal lately?
2025 averaged 48.5°F, 0.9°F above the 1991-2020 normal of 47.6°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 49.7°F | +2.1°F | 50.05 | 31.0 |
| 2022 | 48.1°F | +0.5°F | 25.48 | 28.9 |
| 2023 | 50.0°F | +2.4°F | 37.35 | 22.5 |
| 2024 | 51.5°F | +3.9°F | 41.90 | 25.6 |
| 2025 | 48.5°F | +0.9°F | 33.03 | 24.0 |
Source: observed years: ACIS, station USC00202691. A year counts only with all twelve months complete.
How does Farmington's climate compare?
Farmington is warmer than 88 of the other 139 places with their own NOAA record in Michigan, and wetter than 36. Across the 7,247 U.S. stations with normals, its annual mean of 47.6°F is warmer than 30%.
In the Köppen classification computed from these normals, Farmington 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 Farmington share this climate record?
15 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.
- Livonia, MIalso near: Dearborn (9 mi, 49.5°F a year); Detroit (12 mi, 50.6°F a year)93,113 people · 5 mi S
- Farmington Hills, MIalso near: Pontiac Wastewater Treatment Plant (12 mi, 49.1°F a year); Pontiac (13 mi, 48.4°F a year)84,173 people · 1 mi NW
- Southfield, MIalso near: Dearborn (11 mi, 49.5°F a year); Pontiac Wastewater Treatment Plant (11 mi, 49.1°F a year)76,874 people · 5 mi E
- Novi, MIalso near: Milford (12 mi, 47.7°F a year); Pontiac (13 mi, 48.4°F a year)67,675 people · 6 mi W
- Oak Park, MI29,402 people · 9 mi E
- Berkley, MI15,313 people · 9 mi E
- Beverly Hills, MI10,552 people · 7 mi NE
- Plymouth, MI9,185 people · 9 mi SW
- Walled Lake, MI7,413 people · 7 mi NW
- Huntington Woods, MI6,345 people · 10 mi E
- Northville, MI6,047 people · 7 mi W
- Lathrup Village, MI4,067 people · 7 mi E
- Franklin, MI3,160 people · 5 mi NE
- Pleasant Ridge, MI2,619 people · 11 mi E
- Bingham Farms, MI1,082 people · 6 mi NE
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 Farmington's climate
What is the coldest month in Farmington?
January, with a normal high of 30°F and a normal low of 16°F. The warmest is July (83°F by day, 60°F at night).
Does it snow in Farmington?
Yes: 36 inches in a normal year, falling on 31 days with 0.1 inch or more, the most in February (10.6 inches).
What is the rainiest month in Farmington?
May, with 3.61 in of precipitation in a normal year; the driest is February with 1.75 in.
What plant hardiness zone is Farmington in?
The USDA's 2023 map puts Farmington in zones 6a to 6b across its 2 ZIP code areas (6b in 48336, the largest). By the same method at Farmington's NOAA station, the coldest night of a typical year reaches −5°F (15 years, 1991-2020): zone 6b.
How late can frost come in Farmington?
In half of years the last 32°F night comes after May 1; in one year in ten it comes after May 16. Waiting until May 16 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Michigan climateThe statewide normals and every place in the state
- Dearborn, MI12 miles from this station, 49.5°F a year
- Pontiac Wastewater Treatment Plant, MI13 miles from this station, 49.1°F a year
- Pontiac, MI14 miles from this station, 48.4°F a year
- Detroit, MI16 miles from this station, 50.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made