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Indiana · county maple atlas

Maple sugaring in LaGrange County, Indiana

LaGrange County had 38 maple operations and 19,869 taps in the 2022 Census, the most of any county in Indiana. Around Lagrange, sap usually runs from February 16 to March 20. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 133 days until the usual start.
Sap starts
Feb 16
typical year
Season ends
Mar 20
about 5 weeks
Sap days / season
38.3
1991–2026 average
Taps, 2022
19,869
#1 of 42 in IN

Sap-flow outlook at Lagrange right now

Full Indiana forecast →

Forecast for Lagrange, IN

Updated Oct 6, 9:30 AM EDT

Off-season for now. Sap needs freezing nights, and none are in sight. LaGrange County's season usually opens around February 16, which is 133 days away.

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    54° / 74°

    0h below · 24h above

    No refreeze forecast
  2. ThuOct 8
    50° / 66°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    45° / 68°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    47° / 73°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    55° / 75°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    54° / 74°
    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 Lagrange

Freeze-thaw weather at Lagrange peaks in the weeks of Feb 16 to Mar 30, which hold about 49% of a season's sap days. March is the busiest month.
Typical season: Feb 16 – Mar 200246Week of Dec 1: 1.9 sap days on averageWeek of Dec 8: 1.8 sap days on averageWeek of Dec 15: 1.8 sap days on averageWeek of Dec 22: 1.7 sap days on averageWeek of Dec 29: 1.1 sap days on averageWeek of Jan 5: 1.1 sap days on averageWeek of Jan 12: 1.1 sap days on averageWeek of Jan 19: 0.9 sap days on averageWeek of Jan 26: 1.3 sap days on averageWeek of Feb 2: 1.6 sap days on averageWeek of Feb 9: 1.7 sap days on averageWeek of Feb 16: 2.1 sap days on averageWeek of Feb 23: 2.1 sap days on averageWeek of Mar 2: 2.7 sap days on averageWeek of Mar 9: 2.8 sap days on averageWeek of Mar 16: 3.4 sap days on averageWeek of Mar 23: 3.1 sap days on averageWeek of Mar 30: 2.5 sap days on averageWeek of Apr 6: 2.0 sap days on averageWeek of Apr 13: 0.8 sap days on averageWeek of Apr 20: 0.7 sap days on averageWeek of Apr 27: 0.2 sap days on averageWeek of May 4: 0.1 sap days on averageWeek of May 11: 0.0 sap days on averageWeek of May 18: 0.0 sap days on averageWeek of May 25: 0.0 sap days on averageDecJanFebMarAprMaytaps in ~Feb 16
Average number of freeze-thaw sap days in each week of the season at Lagrange, 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 Feb 20; the middle half of seasons fell between Feb 12 and Feb 28. Earliest Jan 20 (2017), latest Mar 12 (2008).
Closing signal
Median Mar 25; middle half between Mar 15 and Apr 1. Earliest Feb 18 (2017), latest Apr 7 (2014).
Sap days by month
Dec21%Jan12%Feb20%Mar34%Apr13%May0%

36 seasons of sap weather

LaGrange County seasons, 1991–2026

The best sap year at Lagrange was 2002 with 54 freeze-thaw days; the leanest was 2003 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: Feb 10 – Mar 4, 35 sap days3520252025: Feb 14 – Mar 21, 38 sap days3820242024: Feb 4 – Mar 3, 36 sap days3620232023: Feb 14 – Mar 21, 40 sap days4020222022: Feb 18 – Mar 14, 44 sap days4420212021: Feb 22 – Mar 22, 39 sap days3920202020: Feb 20 – Mar 25, 45 sap days4520192019: Mar 1 – Apr 2, 43 sap days4320182018: Feb 24 – Mar 27, 54 sap days5420172017: Jan 20 – Feb 18, 32 sap days3220162016: Feb 9 – Mar 7, 39 sap days3920152015: Mar 7 – Apr 5, 29 sap days2920142014: Mar 9 – Apr 7, 27 sap days2720132013: Mar 7 – Apr 4, 42 sap days4220122012: Feb 8 – Mar 12, 45 sap days4520112011: Mar 3 – Apr 3, 25 sap days2520102010: Feb 18 – Mar 25, 25 sap days2520092009: Feb 17 – Mar 24, 38 sap days3820082008: Mar 12 – Apr 4, 32 sap days3220072007: Feb 19 – Mar 21, 34 sap days3420062006: Feb 8 – Mar 15, 46 sap days4620052005: Feb 28 – Apr 4, 32 sap days3220042004: Feb 21 – Mar 25, 34 sap days3420032003: Mar 8 – Mar 15, 25 sap days2520022002: Feb 23 – Mar 29, 54 sap days5420012001: Mar 4 – Apr 5, 39 sap days3920002000: Feb 7 – Mar 6, 40 sap days4019991999: Feb 26 – Mar 30, 49 sap days4919981998: Feb 12 – Mar 17, 42 sap days4219971997: Feb 20 – Mar 25, 45 sap days4519961996: Feb 25 – Mar 30, 43 sap days4319951995: Feb 12 – Mar 11, 39 sap days3919941994: Feb 26 – Apr 1, 34 sap days3419931993: Mar 8 – Apr 4, 28 sap days2819921992: Feb 11 – Mar 18, 40 sap days4019911991: Feb 18 – Mar 25, 47 sap days47
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Lagrange. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

LaGrange County in the Census of Agriculture

USDA counts maple operations every five years. In LaGrange County the 2022 Census found 38 farms making syrup (-7% since 2017), with taps +153% and syrup output +224% over the same five years. That works out to about 0.21 gallons of syrup per tap in 2022 (0.16 in 2017). Among the 385 counties in this atlas, LaGrange County ranks 94 by taps.

LaGrange County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
20223819,8694,1010.21
2017417,8471,2650.16

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 Lagrange (945ft), 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 Indiana's USDA record (3 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 — Indiana, 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

LaGrange County sugaring questions

When should I tap maple trees in LaGrange County, Indiana?
In a typical year the sap starts running around February 16 near Lagrange and the season winds down around March 20. 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 Jan 20 and as late as Mar 12.
How much maple syrup does LaGrange County produce?
The 2022 Census of Agriculture counted 38 maple operations in LaGrange County with 19,869 taps producing 4,101 gallons of syrup, ranking 1 of 42 Indiana's counties with published tap counts.
How many sap days does LaGrange County get in a season?
On average 38.3 freeze-thaw sap days from December through May at Lagrange, of which about 13.7 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2002 (54 sap days); the leanest was 2003 (25).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Lagrange (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for Indiana. 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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