Maple sugaring in York County, Maine
- Sap starts
- Feb 25
- typical year
- Season ends
- Apr 5
- about 6 weeks
- Sap days / season
- 52.3
- 1991–2026 average
- Taps, 2022
- 13,598
- #9 of 16 in ME
Sap-flow outlook at Alfred right now
Full Maine forecast →Forecast for Alfred, ME
Updated Oct 6, 6:54 AM EDT
1 sap day in the next 6
freeze thaw 32°F
- WedOct 730° / 63°
4h below · 20h above
Sap likely - ThuOct 849° / 70°
0h below · 24h above
Run tapering - FriOct 946° / 64°
0h below · 24h above
No refreeze forecast - SatOct 1044° / 64°
0h below · 24h above
No refreeze forecast - SunOct 1142° / 67°
0h below · 24h above
No refreeze forecast - MonOct 1252° / 70°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 Alfred
Year-to-year spread
- Opening signal
- Median Mar 6; the middle half of seasons fell between Mar 1 and Mar 12. Earliest Feb 15 (2012), latest Mar 19 (2001).
- Closing signal
- Median Apr 9; middle half between Apr 3 and Apr 14. Earliest Mar 13 (2012), latest Apr 21 (2001).
- Sap days by month
- Dec21%Jan13%Feb18%Mar28%Apr19%May2%
36 seasons of sap weather
York County seasons, 1991–2026
Maple production
York County in the Census of Agriculture
USDA counts maple operations every five years. In York County the 2022 Census found 33 farms making syrup (-23% since 2017), with taps -41% and syrup output -48% over the same five years. That works out to about 0.23 gallons of syrup per tap in 2022 (0.26 in 2017). Among the 385 counties in this atlas, York County ranks 114 by taps.
| Census year | Farms | Taps | Gallons of syrup | Gal / tap |
|---|---|---|---|---|
| 2022 | 33 | 13,598 | 3,093 | 0.23 |
| 2017 | 43 | 23,203 | 5,983 | 0.26 |
Nearby
Neighboring maple counties
21 mi · Dover, NH
Strafford County
Sap ~Feb 18 – Mar 28 · 7,662 taps
25 mi · Ossipee, NH
Carroll County
Sap ~Mar 7 – Apr 15 · 9,271 taps
26 mi · Portland, ME
Cumberland County
Sap ~Feb 20 – Mar 30 · 18,526 taps
38 mi · Laconia, NH
Belknap County
Sap ~Mar 2 – Apr 10 · 24,600 taps
39 mi · Brentwood, NH
Rockingham County
Sap ~Feb 16 – Mar 28 · 11,590 taps
45 mi · Concord, NH
Merrimack County
Sap ~Feb 25 – Apr 6 · 43,233 taps
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 Alfred (249ft), 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 Maine's USDA record (12 years). Production figures are copied from the Census as published. Full method, calibration tables and the downloadable dataset →
Sources · 6
- 1.2022 Census of Agriculture, County Level Data — Maine, Table 37: Maple Syrup, 2022 and 2017 · USDA National Agricultural Statistics Service
- 2.PRISM daily temperature grids (AN81d, 4 km), accessed 2026-10-05 · PRISM Group, Oregon State University, https://prism.oregonstate.edu
- 3.Applied Climate Information System (ACIS) web services · NOAA Regional Climate Centers
- 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.Sap flow in sugar maple: timing and weather drivers (Frontiers in Agronomy, 2025) · de Lima Santos et al.
- 6.GeoNames gazetteer (cities500), CC BY 4.0 · GeoNames
FAQ
York County sugaring questions
- When should I tap maple trees in York County, Maine?
- In a typical year the sap starts running around February 25 near Alfred and the season winds down around April 5. 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 15 and as late as Mar 19.
- How much maple syrup does York County produce?
- The 2022 Census of Agriculture counted 33 maple operations in York County with 13,598 taps producing 3,093 gallons of syrup, ranking 9 of 16 Maine's counties with published tap counts.
- How many sap days does York County get in a season?
- On average 52.3 freeze-thaw sap days from December through May at Alfred, of which about 15.9 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2016 (68 sap days); the leanest was 2003 (34).
- Where do these dates come from?
- From 36 seasons of daily high and low temperatures at Alfred (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for Maine. They describe a typical year at one point in the county; your sugarbush, slope and elevation can shift them by days.


