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Connecticut · county maple atlas

Maple sugaring in Tolland County, Connecticut

Tolland County had 9 maple operations and 8,750 taps in the 2022 Census, number 4 in Connecticut. Around Tolland, sap usually runs from February 15 to March 29. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 132 days until the usual start.
Sap starts
Feb 15
typical year
Season ends
Mar 29
about 6 weeks
Sap days / season
44.6
1991–2026 average
Taps, 2022
8,750
#4 of 8 in CT

Sap-flow outlook at Tolland right now

Full Connecticut forecast →

Forecast for Tolland, CT

Updated Oct 6, 9:38 AM EDT

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    35° / 64°

    0h below · 24h above

    No refreeze forecast
  2. ThuOct 8
    52° / 70°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    47° / 65°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    44° / 64°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    46° / 66°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    52° / 65°
    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 Tolland

Freeze-thaw weather at Tolland peaks in the weeks of Feb 2 to Apr 6, which hold about 57% of a season's sap days. March is the busiest month.
Typical season: Feb 15 – Mar 290246Week of Dec 1: 2.4 sap days on averageWeek of Dec 8: 2.3 sap days on averageWeek of Dec 15: 2.2 sap days on averageWeek of Dec 22: 2.1 sap days on averageWeek of Dec 29: 1.9 sap days on averageWeek of Jan 5: 1.8 sap days on averageWeek of Jan 12: 1.7 sap days on averageWeek of Jan 19: 1.5 sap days on averageWeek of Jan 26: 1.8 sap days on averageWeek of Feb 2: 2.1 sap days on averageWeek of Feb 9: 2.1 sap days on averageWeek of Feb 16: 2.8 sap days on averageWeek of Feb 23: 2.2 sap days on averageWeek of Mar 2: 2.7 sap days on averageWeek of Mar 9: 2.9 sap days on averageWeek of Mar 16: 3.2 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: 0.9 sap days on averageWeek of Apr 20: 0.4 sap days on averageWeek of Apr 27: 0.1 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 15
Average number of freeze-thaw sap days in each week of the season at Tolland, 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 24; the middle half of seasons fell between Feb 13 and Mar 4. Earliest Feb 2 (2017), latest Mar 13 (2015).
Closing signal
Median Mar 29; middle half between Mar 16 and Apr 5. Earliest Mar 7 (2017), latest Apr 10 (2003).
Sap days by month
Dec22%Jan17%Feb21%Mar29%Apr11%May0%

36 seasons of sap weather

Tolland County seasons, 1991–2026

The best sap year at Tolland was 2002 with 58 freeze-thaw days; the leanest was 2010 with 26. 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 24 – Mar 30, 43 sap days4320252025: Feb 15 – Mar 22, 35 sap days3520242024: Feb 7 – Mar 13, 39 sap days3920232023: Feb 2 – Mar 9, 58 sap days5820222022: Feb 12 – Mar 14, 43 sap days4320212021: Feb 20 – Mar 23, 43 sap days4320202020: Feb 3 – Mar 10, 53 sap days5320192019: Mar 3 – Apr 5, 50 sap days5020182018: Feb 16 – Mar 23, 53 sap days5320172017: Feb 2 – Mar 7, 40 sap days4020162016: Feb 7 – Mar 13, 45 sap days4520152015: Mar 13 – Apr 6, 35 sap days3520142014: Mar 9 – Apr 10, 46 sap days4620132013: Mar 5 – Apr 7, 42 sap days4220122012: Feb 10 – Mar 12, 57 sap days5720112011: Mar 6 – Apr 9, 35 sap days3520102010: Feb 15 – Mar 17, 26 sap days2620092009: Mar 1 – Apr 1, 40 sap days4020082008: Mar 4 – Apr 5, 53 sap days5320072007: Feb 23 – Mar 30, 41 sap days4120062006: Feb 18 – Mar 23, 41 sap days4120052005: Mar 2 – Mar 31, 49 sap days4920042004: Mar 4 – Apr 8, 40 sap days4020032003: Mar 8 – Apr 10, 34 sap days3420022002: Feb 7 – Mar 13, 58 sap days5820012001: Mar 10 – Apr 5, 43 sap days4320002000: Feb 10 – Mar 16, 47 sap days4719991999: Feb 24 – Mar 27, 55 sap days5519981998: Feb 20 – Mar 26, 45 sap days4519971997: Feb 28 – Apr 3, 50 sap days5019961996: Feb 26 – Apr 1, 34 sap days3419951995: Feb 13 – Mar 12, 47 sap days4719941994: Mar 7 – Apr 9, 43 sap days4319931993: Mar 9 – Apr 8, 37 sap days3719921992: Mar 4 – Apr 6, 53 sap days5319911991: Feb 16 – Mar 21, 53 sap days53
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Tolland. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

Tolland County in the Census of Agriculture

USDA counts maple operations every five years. In Tolland County the 2022 Census found 9 farms making syrup (-50% since 2017), with taps +3% and syrup output +26% over the same five years. That works out to about 0.13 gallons of syrup per tap in 2022 (0.11 in 2017). Among the 385 counties in this atlas, Tolland County ranks 146 by taps.

Tolland County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
202298,7501,1740.13
2017188,4879350.11

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 Tolland (738ft), 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 Connecticut's USDA record (8 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 — Connecticut, 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

Tolland County sugaring questions

When should I tap maple trees in Tolland County, Connecticut?
In a typical year the sap starts running around February 15 near Tolland and the season winds down around March 29. 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 2 and as late as Mar 13.
How much maple syrup does Tolland County produce?
The 2022 Census of Agriculture counted 9 maple operations in Tolland County with 8,750 taps producing 1,174 gallons of syrup, ranking 4 of 8 Connecticut's counties with published tap counts.
How many sap days does Tolland County get in a season?
On average 44.6 freeze-thaw sap days from December through May at Tolland, of which about 17.3 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2002 (58 sap days); the leanest was 2010 (26).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Tolland (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for Connecticut. 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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