Ki Sawyer Wastewater Treatment Plant, Michigan climate: Climate normals at a NOAA weather station
Ki Sawyer Wastewater Treatment Plant's normal year runs from 10°F January nights to 78°F July afternoons, with 32.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.5°C, January lows of −12°C, July highs of 26°C, 830 mm of precipitation a year.
- NOAA stationKi Sawyer Wastewater Treatment Plant
- Station IDUSC00204425
- Location46.33°N 87.38°W
- Elevation1,116 ft (340 m)
On October 24, the normal high in Ki Sawyer Wastewater Treatment Plant is 49°F and the normal low 32°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Ki Sawyer Wastewater Treatment Plant.
- Jan 25° 10°
- Feb 28° 8°
- Mar 36° 18°
- Apr 48° 29°
- May 63° 41°
- Jun 73° 51°
- Jul 78° 56°
- Aug 76° 54°
- Sep 68° 46°
- Oct 53° 35°
- Nov 39° 26°
- Dec 29° 16°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Ki Sawyer Wastewater Treatment Plant each month?
July is the warmest month, with normal highs of 78°F; January the coldest, with normal lows of 10°F. The most precipitation falls in October (4.05 in), the least in February (1.37 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 25°F | 10°F | 17.2°F | 1.79 | – | <1 | 30 | 9 h |
| February | 28°F | 8°F | 17.8°F | 1.37 | – | <1 | 28 | 10 h 20 min |
| March | 36°F | 18°F | 26.9°F | 1.75 | – | <1 | 29 | 11 h 50 min |
| April | 48°F | 29°F | 38.4°F | 2.54 | – | <1 | 23 | 13 h 30 min |
| May | 63°F | 41°F | 52.2°F | 3.14 | – | <1 | 5 | 15 h |
| June | 73°F | 51°F | 62.0°F | 3.24 | – | <1 | <1 | 15 h 50 min |
| July | 78°F | 56°F | 67.2°F | 3.25 | – | 3 | <1 | 15 h 30 min |
| August | 76°F | 54°F | 65.1°F | 2.85 | – | <1 | <1 | 14 h 10 min |
| September | 68°F | 46°F | 56.8°F | 4.02 | – | <1 | <1 | 12 h 40 min |
| October | 53°F | 35°F | 44.2°F | 4.05 | – | <1 | 12 | 11 h |
| November | 39°F | 26°F | 32.8°F | 2.53 | – | <1 | 23 | 9 h 30 min |
| December | 29°F | 16°F | 22.8°F | 2.13 | – | <1 | 30 | 8 h 40 min |
| Year (annual) | 51°F | 33°F | 41.9°F | 32.66 | – | 3 | 178 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −4°C | −12°C | −8.2°C | 45 mm |
| February | −2°C | −13°C | −7.9°C | 35 mm |
| March | 2°C | −8°C | −2.8°C | 44 mm |
| April | 9°C | −2°C | 3.6°C | 65 mm |
| May | 17°C | 5°C | 11.2°C | 80 mm |
| June | 23°C | 10°C | 16.7°C | 82 mm |
| July | 26°C | 13°C | 19.6°C | 83 mm |
| August | 24°C | 12°C | 18.4°C | 72 mm |
| September | 20°C | 8°C | 13.8°C | 102 mm |
| October | 12°C | 2°C | 6.8°C | 103 mm |
| November | 4°C | −3°C | 0.4°C | 64 mm |
| December | −1°C | −9°C | −5.1°C | 54 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Marquette (15 miles away), gets 102 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00204425; 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.
Which months are mildest at Ki Sawyer Wastewater Treatment Plant?
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 USC00204425.
When is the last frost at Ki Sawyer Wastewater Treatment Plant?
In Ki Sawyer Wastewater Treatment Plant, the last spring frost (32°F) comes after May 13 in half of years and after May 29 in one year in ten; the first autumn frost comes before October 2 in half of years and before September 15 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 131 year in 10 after May 29; 9 in 10 after April 28
- First autumn frost, half of years before
- October 21 year in 10 before September 15; 9 in 10 before October 16
NOAA puts the median frost-free season at 141 days, and the season without a hard freeze (28°F) at 165 days.
A hard freeze (28°F) comes after May 1 in half of springs and before October 14 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Ki Sawyer Wastewater Treatment Plant in zone 5a in ZIP code 49833, 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 USC00204425; 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 at Ki Sawyer Wastewater Treatment Plant?
In a normal year in Ki Sawyer Wastewater Treatment Plant, 3 days a year reach 90°F and 178 nights fall to 32°F or colder.
- 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
- 178a normal year
- Days that stay below freezing
- 84high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00204425.
How sunny is it at Ki Sawyer Wastewater Treatment Plant?
Over a year 67% of the sunlight that would reach the ground under clear skies gets through the clouds at Ki Sawyer Wastewater Treatment Plant, 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 many heating and cooling degree days does Ki Sawyer Wastewater Treatment Plant record?
A normal year at Ki Sawyer Wastewater Treatment Plant brings 8,615 heating degree days, 60% more than the median U.S. place (5,373), and 245 cooling degree days, 73% 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 1,770 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,483 | 0 |
| February | 1,321 | 0 |
| March | 1,181 | 0 |
| April | 796 | 0 |
| May | 402 | 5 |
| June | 130 | 39 |
| July | 49 | 115 |
| August | 71 | 72 |
| September | 261 | 15 |
| October | 645 | 0 |
| November | 968 | 0 |
| December | 1,308 | 0 |
| Year (annual) | 8,615 | 245 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00204425. 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.
Have recent years at Ki Sawyer Wastewater Treatment Plant been warmer than normal?
2025 averaged 43.2°F, 1.3°F above the 1991-2020 normal of 41.9°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 44.5°F | +2.6°F | 24.69 |
| 2022 | 41.9°F | at normal | 36.50 |
| 2023 | 44.7°F | +2.8°F | 36.97 |
| 2025 | 43.2°F | +1.3°F | 37.09 |
Source: observed years: ACIS, station USC00204425. A year counts only with all twelve months complete.
How does Ki Sawyer Wastewater Treatment Plant's climate compare?
Ki Sawyer Wastewater Treatment Plant is warmer than 14 of the 140 places with their own NOAA record in Michigan, and wetter than 31. Across the 7,247 U.S. stations with normals, its annual mean of 41.9°F is warmer than 9%.
In the Köppen classification computed from these normals, Ki Sawyer Wastewater Treatment Plant 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 Ki Sawyer Wastewater Treatment Plant 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.
- K. I. Sawyer, MI2,791 people · 1 mi SE
- Gwinn, MI1,268 people · 5 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 Ki Sawyer Wastewater Treatment Plant's climate
What is the coldest month at Ki Sawyer Wastewater Treatment Plant?
January, with a normal high of 25°F and a normal low of 10°F. The warmest is July (78°F by day, 56°F at night).
Does it snow at Ki Sawyer Wastewater Treatment Plant?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Marquette (15 miles away), records 102 inches of snow in a normal year.
What is the rainiest month at Ki Sawyer Wastewater Treatment Plant?
October, with 4.05 in of precipitation in a normal year; the driest is February with 1.37 in.
What plant hardiness zone is Ki Sawyer Wastewater Treatment Plant in?
The USDA's 2023 map puts Ki Sawyer Wastewater Treatment Plant in zone 5a in ZIP code 49833, the nearest ZIP area.
How late can frost come at Ki Sawyer Wastewater Treatment Plant?
In half of years the last 32°F night comes after May 13; in one year in ten it comes after May 29. Waiting until May 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Michigan climateThe statewide normals and every place in the state
- Marquette, MI15 miles from this station, 42.6°F a year
- Ishpeming, MI19 miles from this station, 39.9°F a year
- Chatham, MI22 miles from this station, 40.6°F a year
- Clarksburg, MI25 miles from this station, 38.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made