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New York · county maple atlas

Maple sugaring in Chenango County, New York

Chenango County had 27 maple operations and 57,185 taps in the 2022 Census. Around Norwich, sap usually runs from March 1 to April 7. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 146 days until the usual start.
Sap starts
Mar 1
typical year
Season ends
Apr 7
about 5 weeks
Sap days / season
47.4
1991–2026 average
Taps, 2022
57,185
#17 of 50 in NY

Sap-flow outlook at Norwich right now

Full New York forecast →

Forecast for Norwich, NY

Updated Oct 6, 9:14 AM EDT

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    36° / 66°

    0h below · 24h above

    No refreeze forecast
  2. ThuOct 8
    49° / 66°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    42° / 62°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    40° / 65°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    44° / 69°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    50° / 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 Norwich

Freeze-thaw weather at Norwich peaks in the weeks of Feb 16 to Apr 13, which hold about 54% of a season's sap days. March is the busiest month.
Typical season: Mar 1 – Apr 70246Week of Dec 1: 2.1 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: 2.0 sap days on averageWeek of Dec 29: 1.6 sap days on averageWeek of Jan 5: 1.2 sap days on averageWeek of Jan 12: 1.4 sap days on averageWeek of Jan 19: 1.1 sap days on averageWeek of Jan 26: 1.0 sap days on averageWeek of Feb 2: 1.7 sap days on averageWeek of Feb 9: 1.8 sap days on averageWeek of Feb 16: 2.3 sap days on averageWeek of Feb 23: 2.2 sap days on averageWeek of Mar 2: 2.5 sap days on averageWeek of Mar 9: 3.0 sap days on averageWeek of Mar 16: 3.3 sap days on averageWeek of Mar 23: 3.5 sap days on averageWeek of Mar 30: 3.1 sap days on averageWeek of Apr 6: 3.4 sap days on averageWeek of Apr 13: 2.3 sap days on averageWeek of Apr 20: 1.9 sap days on averageWeek of Apr 27: 1.3 sap days on averageWeek of May 4: 0.5 sap days on averageWeek of May 11: 0.4 sap days on averageWeek of May 18: 0.2 sap days on averageWeek of May 25: 0.0 sap days on averageDecJanFebMarAprMaytaps in ~Mar 1
Average number of freeze-thaw sap days in each week of the season at Norwich, 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 5; the middle half of seasons fell between Feb 27 and Mar 12. Earliest Feb 13 (2012), latest Mar 19 (2018).
Closing signal
Median Apr 7; middle half between Mar 30 and Apr 14. Earliest Mar 16 (2012), latest Apr 23 (2018).
Sap days by month
Dec18%Jan12%Feb17%Mar29%Apr23%May3%

36 seasons of sap weather

Chenango County seasons, 1991–2026

The best sap year at Norwich was 2020 with 68 freeze-thaw days; the leanest was 2015 with 31. 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 27 – Mar 30, 36 sap days3620252025: Feb 27 – Apr 3, 39 sap days3920242024: Feb 21 – Mar 28, 52 sap days5220232023: Mar 2 – Apr 4, 61 sap days6120222022: Mar 4 – Apr 5, 54 sap days5420212021: Mar 5 – Apr 6, 44 sap days4420202020: Feb 26 – Apr 2, 68 sap days6820192019: Mar 10 – Apr 12, 45 sap days4520182018: Mar 19 – Apr 23, 50 sap days5020172017: Feb 28 – Apr 3, 41 sap days4120162016: Feb 19 – Mar 24, 61 sap days6120152015: Mar 18 – Apr 19, 31 sap days3120142014: Mar 14 – Apr 18, 50 sap days5020132013: Mar 14 – Apr 15, 53 sap days5320122012: Feb 13 – Mar 16, 62 sap days6220112011: Mar 13 – Apr 16, 35 sap days3520102010: Feb 26 – Mar 29, 45 sap days4520092009: Mar 7 – Apr 10, 44 sap days4420082008: Mar 9 – Apr 7, 45 sap days4520072007: Mar 10 – Apr 12, 46 sap days4620062006: Feb 24 – Mar 30, 47 sap days4720052005: Mar 7 – Apr 11, 47 sap days4720042004: Mar 9 – Apr 13, 38 sap days3820032003: Mar 12 – Apr 15, 35 sap days3520022002: Mar 4 – Apr 8, 57 sap days5720012001: Mar 18 – Apr 20, 32 sap days3220002000: Feb 17 – Mar 21, 45 sap days4519991999: Feb 28 – Mar 28, 54 sap days5419981998: Feb 20 – Mar 26, 51 sap days5119971997: Mar 2 – Apr 3, 45 sap days4519961996: Mar 12 – Apr 16, 52 sap days5219951995: Feb 17 – Mar 20, 58 sap days5819941994: Mar 14 – Apr 11, 44 sap days4419931993: Mar 12 – Apr 14, 44 sap days4419921992: Mar 14 – Apr 16, 49 sap days4919911991: Feb 28 – Apr 4, 47 sap days47
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Norwich. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

Chenango County in the Census of Agriculture

USDA counts maple operations every five years. In Chenango County the 2022 Census found 27 farms making syrup (-34% since 2017), with taps -33% and syrup output -39% over the same five years. That works out to about 0.27 gallons of syrup per tap in 2022 (0.30 in 2017). Among the 385 counties in this atlas, Chenango County ranks 51 by taps.

Chenango County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
20222757,18515,5440.27
20174184,84025,6220.30

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 Norwich (1,247ft), 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 New York'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 — New York, 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

Chenango County sugaring questions

When should I tap maple trees in Chenango County, New York?
In a typical year the sap starts running around March 1 near Norwich and the season winds down around April 7. 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 13 and as late as Mar 19.
How much maple syrup does Chenango County produce?
The 2022 Census of Agriculture counted 27 maple operations in Chenango County with 57,185 taps producing 15,544 gallons of syrup, ranking 17 of 50 New York's counties with published tap counts.
How many sap days does Chenango County get in a season?
On average 47.4 freeze-thaw sap days from December through May at Norwich, of which about 11.8 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2020 (68 sap days); the leanest was 2015 (31).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Norwich (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for New York. 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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