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New York · county maple atlas

Maple sugaring in Chautauqua County, New York

Chautauqua County had 43 maple operations and 64,688 taps in the 2022 Census. Around Mayville, sap usually runs from February 25 to April 2. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 142 days until the usual start.
Sap starts
Feb 25
typical year
Season ends
Apr 2
about 5 weeks
Sap days / season
36.9
1991–2026 average
Taps, 2022
64,688
#14 of 50 in NY

Sap-flow outlook at Mayville right now

Full New York forecast →

Forecast for Mayville, NY

Updated Oct 6, 9:58 AM EDT

Off-season for now. Sap needs freezing nights, and none are in sight. Chautauqua County's season usually opens around February 25, which is 142 days away.

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    44° / 66°

    0h below · 24h above

    No refreeze forecast
  2. ThuOct 8
    50° / 62°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    43° / 61°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    42° / 66°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    50° / 69°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    52° / 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 Mayville

Freeze-thaw weather at Mayville peaks in the weeks of Feb 16 to Apr 6, which hold about 50% of a season's sap days. March is the busiest month.
Typical season: Feb 25 – Apr 20246Week of Dec 1: 1.4 sap days on averageWeek of Dec 8: 1.7 sap days on averageWeek of Dec 15: 1.6 sap days on averageWeek of Dec 22: 1.8 sap days on averageWeek of Dec 29: 1.3 sap days on averageWeek of Jan 5: 1.2 sap days on averageWeek of Jan 12: 1.3 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: 1.4 sap days on averageWeek of Feb 16: 2.1 sap days on averageWeek of Feb 23: 1.9 sap days on averageWeek of Mar 2: 2.3 sap days on averageWeek of Mar 9: 2.3 sap days on averageWeek of Mar 16: 2.6 sap days on averageWeek of Mar 23: 2.6 sap days on averageWeek of Mar 30: 2.6 sap days on averageWeek of Apr 6: 2.0 sap days on averageWeek of Apr 13: 1.2 sap days on averageWeek of Apr 20: 1.0 sap days on averageWeek of Apr 27: 0.5 sap days on averageWeek of May 4: 0.2 sap days on averageWeek of May 11: 0.1 sap days on averageWeek of May 18: 0.1 sap days on averageWeek of May 25: 0.0 sap days on averageDecJanFebMarAprMaytaps in ~Feb 25
Average number of freeze-thaw sap days in each week of the season at Mayville, 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 1; the middle half of seasons fell between Feb 22 and Mar 8. Earliest Jan 31 (2017), latest Mar 13 (2015).
Closing signal
Median Apr 2; middle half between Mar 28 and Apr 6. Earliest Mar 3 (2024), latest Apr 16 (1992).
Sap days by month
Dec19%Jan14%Feb19%Mar30%Apr17%May1%

36 seasons of sap weather

Chautauqua County seasons, 1991–2026

The best sap year at Mayville was 2012 with 54 freeze-thaw days; the leanest was 2003 with 23. 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 13 – Mar 20, 32 sap days3220252025: Feb 23 – Mar 28, 36 sap days3620242024: Feb 2 – Mar 3, 38 sap days3820232023: Feb 25 – Mar 31, 51 sap days5120222022: Mar 1 – Apr 5, 43 sap days4320212021: Feb 24 – Mar 30, 34 sap days3420202020: Feb 21 – Mar 24, 53 sap days5320192019: Mar 6 – Apr 5, 38 sap days3820182018: Mar 8 – Apr 11, 41 sap days4120172017: Jan 31 – Mar 6, 29 sap days2920162016: Feb 16 – Mar 23, 49 sap days4920152015: Mar 13 – Apr 6, 33 sap days3320142014: Mar 10 – Apr 7, 35 sap days3520132013: Mar 11 – Apr 7, 32 sap days3220122012: Feb 11 – Mar 12, 54 sap days5420112011: Mar 8 – Apr 7, 26 sap days2620102010: Mar 3 – Mar 31, 24 sap days2420092009: Feb 28 – Apr 1, 34 sap days3420082008: Mar 6 – Apr 5, 31 sap days3120072007: Feb 22 – Mar 29, 29 sap days2920062006: Feb 22 – Mar 29, 31 sap days3120052005: Mar 5 – Apr 5, 29 sap days2920042004: Mar 3 – Apr 7, 33 sap days3320032003: Mar 6 – Apr 10, 23 sap days2320022002: Feb 22 – Mar 29, 48 sap days4820012001: Mar 9 – Apr 5, 35 sap days3520002000: Feb 16 – Mar 20, 41 sap days4119991999: Mar 2 – Mar 29, 43 sap days4319981998: Feb 20 – Mar 26, 36 sap days3619971997: Feb 27 – Apr 2, 42 sap days4219961996: Mar 12 – Apr 12, 35 sap days3519951995: Feb 15 – Mar 19, 43 sap days4319941994: Mar 11 – Apr 9, 35 sap days3519931993: Mar 8 – Apr 5, 31 sap days3119921992: Mar 12 – Apr 16, 37 sap days3719911991: Feb 27 – Apr 3, 43 sap days43
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Mayville. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

Chautauqua County in the Census of Agriculture

USDA counts maple operations every five years. In Chautauqua County the 2022 Census found 43 farms making syrup (-31% since 2017), with taps -48% and syrup output -57% over the same five years. That works out to about 0.25 gallons of syrup per tap in 2022 (0.30 in 2017). Among the 385 counties in this atlas, Chautauqua County ranks 45 by taps.

Chautauqua County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
20224364,68816,0200.25
201762124,15637,1140.30

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 Mayville (1,365ft), 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

Chautauqua County sugaring questions

When should I tap maple trees in Chautauqua County, New York?
In a typical year the sap starts running around February 25 near Mayville and the season winds down around April 2. 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 31 and as late as Mar 13.
How much maple syrup does Chautauqua County produce?
The 2022 Census of Agriculture counted 43 maple operations in Chautauqua County with 64,688 taps producing 16,020 gallons of syrup, ranking 14 of 50 New York's counties with published tap counts.
How many sap days does Chautauqua County get in a season?
On average 36.9 freeze-thaw sap days from December through May at Mayville, of which about 13 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2012 (54 sap days); the leanest was 2003 (23).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Mayville (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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