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Wisconsin · county maple atlas

Maple sugaring in Shawano County, Wisconsin

Shawano County had 60 maple operations and 103,303 taps in the 2022 Census, number 3 in Wisconsin. Around Shawano, sap usually runs from March 15 to April 11. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 160 days until the usual start.
Sap starts
Mar 15
typical year
Season ends
Apr 11
about 4 weeks
Sap days / season
36.9
1991–2026 average
Taps, 2022
103,303
#3 of 60 in WI

Sap-flow outlook at Shawano right now

Full Wisconsin forecast →

Forecast for Shawano, WI

Updated Oct 6, 9:36 AM EDT

Off-season for now. Sap needs freezing nights, and none are in sight. Shawano County's season usually opens around March 15, which is 160 days away.

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    48° / 72°

    0h below · 24h above

    No refreeze forecast
  2. ThuOct 8
    41° / 66°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    37° / 68°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    45° / 76°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    56° / 78°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    51° / 66°
    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 Shawano

Freeze-thaw weather at Shawano peaks in the weeks of Mar 2 to Apr 6, which hold about 50% of a season's sap days. March is the busiest month.
Typical season: Mar 15 – Apr 110246Week of Dec 1: 1.1 sap days on averageWeek of Dec 8: 1.4 sap days on averageWeek of Dec 15: 1.0 sap days on averageWeek of Dec 22: 0.9 sap days on averageWeek of Dec 29: 0.5 sap days on averageWeek of Jan 5: 0.8 sap days on averageWeek of Jan 12: 0.4 sap days on averageWeek of Jan 19: 0.3 sap days on averageWeek of Jan 26: 0.8 sap days on averageWeek of Feb 2: 1.1 sap days on averageWeek of Feb 9: 1.1 sap days on averageWeek of Feb 16: 1.5 sap days on averageWeek of Feb 23: 1.6 sap days on averageWeek of Mar 2: 2.5 sap days on averageWeek of Mar 9: 2.8 sap days on averageWeek of Mar 16: 3.3 sap days on averageWeek of Mar 23: 3.7 sap days on averageWeek of Mar 30: 3.5 sap days on averageWeek of Apr 6: 2.9 sap days on averageWeek of Apr 13: 2.1 sap days on averageWeek of Apr 20: 1.8 sap days on averageWeek of Apr 27: 1.0 sap days on averageWeek of May 4: 0.4 sap days on averageWeek of May 11: 0.3 sap days on averageWeek of May 18: 0.1 sap days on averageWeek of May 25: 0.0 sap days on averageDecJanFebMarAprMaytaps in ~Mar 15
Average number of freeze-thaw sap days in each week of the season at Shawano, 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 12; the middle half of seasons fell between Mar 4 and Mar 18. Earliest Feb 14 (2012), latest Mar 28 (2018).
Closing signal
Median Apr 14; middle half between Apr 6 and Apr 18. Earliest Mar 15 (2012), latest Apr 29 (2018).
Sap days by month
Dec13%Jan6%Feb14%Mar37%Apr27%May3%

36 seasons of sap weather

Shawano County seasons, 1991–2026

The best sap year at Shawano was 2002 with 52 freeze-thaw days; the leanest was 2001 with 25. 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 8 – Apr 12, 38 sap days3820252025: Mar 12 – Apr 16, 42 sap days4220242024: Feb 27 – Apr 2, 52 sap days5220232023: Mar 11 – Apr 9, 37 sap days3720222022: Mar 20 – Apr 18, 34 sap days3420212021: Mar 2 – Apr 3, 40 sap days4020202020: Mar 15 – Apr 19, 45 sap days4520192019: Mar 17 – Apr 20, 35 sap days3520182018: Mar 28 – Apr 29, 50 sap days5020172017: Mar 3 – Apr 7, 29 sap days2920162016: Mar 19 – Apr 14, 34 sap days3420152015: Mar 9 – Apr 11, 32 sap days3220142014: Mar 23 – Apr 23, 25 sap days2520132013: Mar 27 – Apr 24, 33 sap days3320122012: Feb 14 – Mar 15, 44 sap days4420112011: Mar 20 – Apr 21, 28 sap days2820102010: Feb 26 – Mar 30, 39 sap days3920092009: Mar 14 – Apr 16, 38 sap days3820082008: Mar 18 – Apr 16, 26 sap days2620072007: Feb 27 – Mar 24, 35 sap days3520062006: Mar 9 – Apr 10, 33 sap days3320052005: Mar 7 – Apr 4, 32 sap days3220042004: Mar 13 – Apr 15, 40 sap days4020032003: Mar 11 – Apr 13, 38 sap days3820022002: Mar 12 – Apr 7, 52 sap days5220012001: Mar 16 – Apr 18, 25 sap days2520002000: Feb 21 – Mar 27, 42 sap days4219991999: Mar 4 – Mar 30, 48 sap days4819981998: Mar 3 – Apr 6, 29 sap days2919971997: Mar 17 – Apr 21, 37 sap days3719961996: Mar 22 – Apr 24, 37 sap days3719951995: Mar 12 – Apr 15, 38 sap days3819941994: Mar 14 – Apr 11, 37 sap days3719931993: Mar 21 – Apr 23, 37 sap days3719921992: Mar 20 – Apr 15, 32 sap days3219911991: Mar 3 – Apr 2, 36 sap days36
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Shawano. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

Shawano County in the Census of Agriculture

USDA counts maple operations every five years. In Shawano County the 2022 Census found 60 farms making syrup (-27% since 2017), with taps -5% and syrup output +10% over the same five years. That works out to about 0.25 gallons of syrup per tap in 2022 (0.21 in 2017). Among the 385 counties in this atlas, Shawano County ranks 26 by taps.

Shawano County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
202260103,30325,6200.25
201782108,54423,3010.21

Nearby

Neighboring maple counties

Distances are between reference towns; typical dates are each county's own estimate.

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 Shawano (810ft), 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 Wisconsin'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 — Wisconsin, 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

Shawano County sugaring questions

When should I tap maple trees in Shawano County, Wisconsin?
In a typical year the sap starts running around March 15 near Shawano and the season winds down around April 11. 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 28.
How much maple syrup does Shawano County produce?
The 2022 Census of Agriculture counted 60 maple operations in Shawano County with 103,303 taps producing 25,620 gallons of syrup, ranking 3 of 60 Wisconsin's counties with published tap counts.
How many sap days does Shawano County get in a season?
On average 36.9 freeze-thaw sap days from December through May at Shawano, of which about 11.1 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2002 (52 sap days); the leanest was 2001 (25).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Shawano (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for Wisconsin. 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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