Covington, Michigan climate: Normal weather by month, frost dates and records
Covington's normal year runs from 5°F January nights to 76°F July afternoons, with 30.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 4.7°C, January lows of −15°C, July highs of 25°C, 782 mm of precipitation a year.
- NOAA stationCovington (1 mi NNW)
- Station IDUSC00201845
- Location46.56°N 88.54°W
- Elevation1,611 ft (491 m)
- Population (census place)113
On October 23, the normal high in Covington is 49°F and the normal low 33°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Covington.
- Jan 21° 5°
- Feb 25° 6°
- Mar 37° 15°
- Apr 49° 27°
- May 63° 41°
- Jun 72° 51°
- Jul 76° 54°
- Aug 75° 53°
- Sep 67° 46°
- Oct 52° 35°
- Nov 38° 24°
- Dec 26° 12°
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 Covington each month?
July is the warmest month, with normal highs of 76°F; January the coldest, with normal lows of 5°F. The most precipitation falls in September (3.80 in), the least in February (1.27 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 21°F | 5°F | 13.2°F | 1.76 | – | <1 | 31 | 9 h |
| February | 25°F | 6°F | 15.5°F | 1.27 | – | <1 | 28 | 10 h 20 min |
| March | 37°F | 15°F | 25.9°F | 1.52 | – | <1 | 29 | 11 h 50 min |
| April | 49°F | 27°F | 37.9°F | 2.98 | – | <1 | 22 | 13 h 30 min |
| May | 63°F | 41°F | 52.0°F | 3.36 | – | <1 | 8 | 15 h |
| June | 72°F | 51°F | 61.8°F | 3.17 | – | 1 | <1 | 15 h 50 min |
| July | 76°F | 54°F | 65.2°F | 3.69 | – | <1 | <1 | 15 h 30 min |
| August | 75°F | 53°F | 64.0°F | 1.93 | – | <1 | <1 | 14 h 20 min |
| September | 67°F | 46°F | 56.3°F | 3.80 | – | <1 | 1 | 12 h 40 min |
| October | 52°F | 35°F | 43.6°F | 3.34 | – | <1 | 16 | 11 h |
| November | 38°F | 24°F | 30.8°F | 2.16 | – | <1 | 27 | 9 h 30 min |
| December | 26°F | 12°F | 18.9°F | 1.82 | – | <1 | 31 | 8 h 40 min |
| Year (annual) | 50°F | 31°F | 40.4°F | 30.80 | – | 2 | 193 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −6°C | −15°C | −10.4°C | 45 mm |
| February | −4°C | −14°C | −9.2°C | 32 mm |
| March | 3°C | −9°C | −3.4°C | 39 mm |
| April | 9°C | −3°C | 3.3°C | 76 mm |
| May | 17°C | 5°C | 11.1°C | 85 mm |
| June | 22°C | 11°C | 16.6°C | 81 mm |
| July | 25°C | 12°C | 18.4°C | 94 mm |
| August | 24°C | 12°C | 17.8°C | 49 mm |
| September | 19°C | 8°C | 13.5°C | 97 mm |
| October | 11°C | 2°C | 6.4°C | 85 mm |
| November | 3°C | −5°C | −0.7°C | 55 mm |
| December | −3°C | −11°C | −7.3°C | 46 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Watton (2 mi WSW) (5 miles away), gets 121 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00201845; 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 Covington?
Normal highs sit between 65°F and 85°F in 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 USC00201845.
When is the last frost in Covington?
In Covington, the last spring frost (32°F) comes after May 17 in half of years and after May 30 in one year in ten; the first autumn frost comes before September 30 in half of years and before September 14 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 171 year in 10 after May 30; 9 in 10 after May 2
- First autumn frost, half of years before
- September 301 year in 10 before September 14; 9 in 10 before October 14
NOAA puts the median frost-free season at 134 days, and the season without a hard freeze (28°F) at 157 days.
A hard freeze (28°F) comes after May 5 in half of springs and before October 12 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Covington in zone 4b in ZIP code 49970, 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 USC00201845; 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 Covington?
In a normal year in Covington, 2 days a year reach 90°F and 193 nights fall to 32°F or colder.
- Days at 90°F or more
- 2a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 193a normal year
- Days that stay below freezing
- 101high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00201845.
How sunny is Covington?
Over a year 69% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Covington, 3.6 kWh per square metre a day. July is the sunniest month (78%) and December the cloudiest (50%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 56% | 1.3 |
| February | 63% | 2.2 |
| March | 68% | 3.5 |
| April | 67% | 4.5 |
| May | 69% | 5.4 |
| June | 73% | 6.0 |
| July | 78% | 6.2 |
| August | 75% | 5.1 |
| September | 71% | 3.8 |
| October | 61% | 2.3 |
| November | 54% | 1.3 |
| December | 50% | 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 Covington need?
A normal year in Covington brings 9,054 heating degree days, 69% more than the median U.S. place (5,373), and 126 cooling degree days, 86% 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 1,644 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,607 | 0 |
| February | 1,387 | 0 |
| March | 1,212 | 0 |
| April | 814 | 0 |
| May | 409 | 4 |
| June | 121 | 25 |
| July | 44 | 50 |
| August | 72 | 39 |
| September | 271 | 9 |
| October | 664 | 0 |
| November | 1,026 | 0 |
| December | 1,429 | 0 |
| Year (annual) | 9,054 | 126 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00201845. 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 Covington been warmer than normal lately?
2025 averaged 40.4°F, equal to the 1991-2020 normal of 40.4°F. 2 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 42.4°F | +2.0°F | 28.60 |
| 2022 | 39.1°F | −1.3°F | 40.41 |
| 2023 | 42.3°F | +1.9°F | 30.29 |
| 2025 | 40.4°F | at normal | 33.23 |
Source: observed years: ACIS, station USC00201845. A year counts only with all twelve months complete.
How does Covington's climate compare?
Covington is warmer than 4 of the other 139 places with their own NOAA record in Michigan, and wetter than 16. Across the 7,247 U.S. stations with normals, its annual mean of 40.4°F is warmer than 6%.
In the Köppen classification computed from these normals, Covington 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.
Questions about Covington's climate
What is the coldest month in Covington?
January, with a normal high of 21°F and a normal low of 5°F. The warmest is July (76°F by day, 54°F at night).
Does it snow in Covington?
Yes. NOAA publishes no 1991-2020 snowfall normal for Covington's NOAA station; the nearest record that keeps one, Watton (2 mi WSW) (5 miles away), records 121 inches of snow in a normal year.
What is the rainiest month in Covington?
September, with 3.80 in of precipitation in a normal year; the driest is February with 1.27 in.
What plant hardiness zone is Covington in?
The USDA's 2023 map puts Covington in zone 4b in ZIP code 49970, the nearest ZIP area.
How late can frost come in Covington?
In half of years the last 32°F night comes after May 17; in one year in ten it comes after May 30. Waiting until May 30 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Michigan climateThe statewide normals and every place in the state
- Watton (2 mi WSW), MI5 miles from this station, 40.4°F a year
- Alberta Ford Forestry Center, MI7 miles from this station, 40.9°F a year
- Herman, MI11 miles from this station, 39.3°F a year
- Baraga, MI19 miles from this station, 41.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made