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Michigan · county maple atlas

Maple sugaring in Osceola County, Michigan

Osceola County had 26 maple operations and 10,731 taps in the 2022 Census. Around Reed City, sap usually runs from March 9 to April 12. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 154 days until the usual start.
Sap starts
Mar 9
typical year
Season ends
Apr 12
about 5 weeks
Sap days / season
45.1
1991–2026 average
Taps, 2022
10,731
#17 of 66 in MI

Sap-flow outlook at Reed City right now

Full Michigan forecast →

Forecast for Reed City, MI

Updated Oct 6, 11:03 AM EDT

Off-season for now. Sap needs freezing nights, and none are in sight. Osceola County's season usually opens around March 9, which is 154 days away.

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    50° / 69°

    0h below · 24h above

    No refreeze forecast
  2. ThuOct 8
    41° / 61°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    35° / 63°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    40° / 69°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    51° / 74°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    49° / 68°
    No refreeze forecast

Data: National Weather Service. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

When the sap runs

The sugaring calendar at Reed City

Freeze-thaw weather at Reed City peaks in the weeks of Mar 2 to Apr 20, which hold about 57% of a season's sap days. March is the busiest month.
Typical season: Mar 9 – Apr 120246Week of Dec 1: 1.5 sap days on averageWeek of Dec 8: 1.7 sap days on averageWeek of Dec 15: 1.3 sap days on averageWeek of Dec 22: 1.2 sap days on averageWeek of Dec 29: 0.8 sap days on averageWeek of Jan 5: 1.1 sap days on averageWeek of Jan 12: 0.6 sap days on averageWeek of Jan 19: 0.5 sap days on averageWeek of Jan 26: 0.6 sap days on averageWeek of Feb 2: 1.3 sap days on averageWeek of Feb 9: 1.2 sap days on averageWeek of Feb 16: 1.8 sap days on averageWeek of Feb 23: 2.0 sap days on averageWeek of Mar 2: 2.6 sap days on averageWeek of Mar 9: 2.8 sap days on averageWeek of Mar 16: 3.7 sap days on averageWeek of Mar 23: 3.9 sap days on averageWeek of Mar 30: 3.9 sap days on averageWeek of Apr 6: 3.7 sap days on averageWeek of Apr 13: 2.7 sap days on averageWeek of Apr 20: 2.6 sap days on averageWeek of Apr 27: 1.7 sap days on averageWeek of May 4: 0.9 sap days on averageWeek of May 11: 0.6 sap days on averageWeek of May 18: 0.2 sap days on averageWeek of May 25: 0.2 sap days on averageDecJanFebMarAprMaytaps in ~Mar 9
Average number of freeze-thaw sap days in each week of the season at Reed City, 1991–2026. A sap day is an overnight low under 30.2 °F followed by an afternoon high over 37.4 °F. The shaded band is the typical season.

Year-to-year spread

Opening signal
Median Mar 13; the middle half of seasons fell between Mar 4 and Mar 18. Earliest Feb 14 (2012), latest Mar 27 (2018).
Closing signal
Median Apr 15; middle half between Apr 4 and Apr 18. Earliest Mar 16 (2012), latest Apr 30 (2018).
Sap days by month
Dec13%Jan7%Feb14%Mar33%Apr28%May5%

36 seasons of sap weather

Osceola County seasons, 1991–2026

The best sap year at Reed City was 2018 with 59 freeze-thaw days; the leanest was 2011 with 33. Seasons that start early tend to end early too: the trees run on the swing between freezing nights and mild days, and heat ends it.
JanFebMarAprMaysap days20262026: Mar 4 – Apr 8, 47 sap days4720252025: Mar 13 – Apr 17, 45 sap days4520242024: Feb 20 – Mar 26, 49 sap days4920232023: Mar 10 – Apr 9, 53 sap days5320222022: Mar 20 – Apr 22, 42 sap days4220212021: Mar 3 – Apr 4, 49 sap days4920202020: Mar 15 – Apr 19, 59 sap days5920192019: Mar 17 – Apr 16, 42 sap days4220182018: Mar 27 – Apr 30, 59 sap days5920172017: Feb 28 – Apr 2, 35 sap days3520162016: Mar 10 – Apr 14, 44 sap days4420152015: Mar 14 – Apr 15, 35 sap days3520142014: Mar 22 – Apr 23, 37 sap days3720132013: Mar 25 – Apr 26, 42 sap days4220122012: Feb 14 – Mar 16, 52 sap days5220112011: Mar 20 – Apr 21, 33 sap days3320102010: Feb 26 – Mar 31, 47 sap days4720092009: Mar 14 – Apr 18, 50 sap days5020082008: Mar 16 – Apr 17, 38 sap days3820072007: Feb 25 – Mar 24, 34 sap days3420062006: Mar 9 – Apr 10, 39 sap days3920052005: Mar 8 – Apr 9, 43 sap days4320042004: Mar 12 – Apr 16, 52 sap days5220032003: Mar 14 – Apr 14, 38 sap days3820022002: Mar 11 – Apr 10, 52 sap days5220012001: Mar 13 – Apr 17, 37 sap days3720002000: Feb 16 – Mar 20, 46 sap days4619991999: Mar 4 – Mar 30, 52 sap days5219981998: Feb 25 – Mar 25, 43 sap days4319971997: Mar 19 – Apr 20, 39 sap days3919961996: Mar 19 – Apr 19, 51 sap days5119951995: Mar 10 – Apr 14, 49 sap days4919941994: Mar 15 – Apr 18, 51 sap days5119931993: Mar 20 – Apr 23, 41 sap days4119921992: Mar 20 – Apr 16, 49 sap days4919911991: Mar 3 – Apr 3, 50 sap days50
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Reed City. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

Osceola County in the Census of Agriculture

USDA counts maple operations every five years. In Osceola County the 2022 Census found 26 farms making syrup (+37% since 2017), with taps +233% and syrup output +334% over the same five years. That works out to about 0.52 gallons of syrup per tap in 2022 (0.40 in 2017). Among the 385 counties in this atlas, Osceola County ranks 130 by taps.

Osceola County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
20222610,7315,5490.52
2017193,2261,2800.40

About these numbers

The season dates are estimated from 36 seasons of daily high and low temperatures for the PRISM 4-km grid cell at Reed City (1,079ft), scored with the same freeze-thaw rule as our live forecast: a sap day is an overnight low under 30.2 °F followed by an afternoon high over 37.4 °F. Each season's closing signal is the last sap day before accumulated warmth reaches a threshold, and the opening signal sits five weeks before that, never earlier than the first real freeze-thaw week. Tested against 117 state-seasons of USDA-reported dates, the rule lands within 5.5 days of the reported close and 6.6 days of the reported opening on average, and the typical dates shown here are scaled to Michigan's USDA record (12 years). Production figures are copied from the Census as published. Full method, calibration tables and the downloadable dataset →

Sources · 6

  1. 1.2022 Census of Agriculture, County Level Data — Michigan, Table 37: Maple Syrup, 2022 and 2017 · USDA National Agricultural Statistics Service
  2. 2.PRISM daily temperature grids (AN81d, 4 km), accessed 2026-10-05 · PRISM Group, Oregon State University, https://prism.oregonstate.edu
  3. 3.Applied Climate Information System (ACIS) web services · NOAA Regional Climate Centers
  4. 4.USDA NASS maple syrup reports — approximate average season opened and closed dates, 2011–2022 · USDA National Agricultural Statistics Service (mirrored by the University of Vermont)
  5. 5.Sap flow in sugar maple: timing and weather drivers (Frontiers in Agronomy, 2025) · de Lima Santos et al.
  6. 6.GeoNames gazetteer (cities500), CC BY 4.0 · GeoNames

FAQ

Osceola County sugaring questions

When should I tap maple trees in Osceola County, Michigan?
In a typical year the sap starts running around March 9 near Reed City and the season winds down around April 12. Have your taps in a day or two before the first forecast string of freezing nights and 40 °F days. In the past 36 seasons the weather signal came as early as Feb 14 and as late as Mar 27.
How much maple syrup does Osceola County produce?
The 2022 Census of Agriculture counted 26 maple operations in Osceola County with 10,731 taps producing 5,549 gallons of syrup, ranking 17 of 66 Michigan's counties with published tap counts.
How many sap days does Osceola County get in a season?
On average 45.1 freeze-thaw sap days from December through May at Reed City, of which about 11.5 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2018 (59 sap days); the leanest was 2011 (33).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Reed City (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for Michigan. They describe a typical year at one point in the county; your sugarbush, slope and elevation can shift them by days.

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