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New York · county maple atlas

Maple sugaring in Warren County, New York

Warren County had 12 maple operations and 12,760 taps in the 2022 Census. Around Queensbury, sap usually runs from March 3 to April 9. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 148 days until the usual start.
Sap starts
Mar 3
typical year
Season ends
Apr 9
about 5 weeks
Sap days / season
41.5
1991–2026 average
Taps, 2022
12,760
#34 of 50 in NY

Sap-flow outlook at Queensbury right now

Full New York forecast →

Forecast for Queensbury, NY

Updated Oct 6, 8:37 AM EDT

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    32° / 64°

    0h below · 21h above

    No refreeze forecast
  2. ThuOct 8
    49° / 67°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    45° / 62°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    43° / 63°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    43° / 67°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    50° / 66°
    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 Queensbury

Freeze-thaw weather at Queensbury peaks in the weeks of Mar 2 to Apr 6, which hold about 43% of a season's sap days. March is the busiest month.
Typical season: Mar 3 – Apr 90246Week of Dec 1: 2.2 sap days on averageWeek of Dec 8: 2.1 sap days on averageWeek of Dec 15: 1.4 sap days on averageWeek of Dec 22: 1.4 sap days on averageWeek of Dec 29: 1.3 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: 0.8 sap days on averageWeek of Jan 26: 1.2 sap days on averageWeek of Feb 2: 1.3 sap days on averageWeek of Feb 9: 1.5 sap days on averageWeek of Feb 16: 2.4 sap days on averageWeek of Feb 23: 1.8 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: 3.4 sap days on averageWeek of Mar 30: 3.0 sap days on averageWeek of Apr 6: 2.6 sap days on averageWeek of Apr 13: 1.5 sap days on averageWeek of Apr 20: 1.3 sap days on averageWeek of Apr 27: 0.7 sap days on averageWeek of May 4: 0.2 sap days on averageWeek of May 11: 0.2 sap days on averageWeek of May 18: 0.1 sap days on averageWeek of May 25: 0.0 sap days on averageDecJanFebMarAprMaytaps in ~Mar 3
Average number of freeze-thaw sap days in each week of the season at Queensbury, 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 7; the middle half of seasons fell between Mar 1 and Mar 12. Earliest Feb 15 (2012), latest Mar 19 (2018).
Closing signal
Median Apr 9; middle half between Apr 3 and Apr 13. Earliest Mar 13 (2012), latest Apr 23 (2018).
Sap days by month
Dec18%Jan12%Feb17%Mar32%Apr19%May1%

36 seasons of sap weather

Warren County seasons, 1991–2026

The best sap year at Queensbury was 2012 with 62 freeze-thaw days; the leanest was 2015 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: Mar 4 – Apr 8, 35 sap days3520252025: Feb 27 – Apr 3, 39 sap days3920242024: Feb 23 – Mar 28, 44 sap days4420232023: Mar 6 – Apr 10, 47 sap days4720222022: Mar 3 – Apr 5, 43 sap days4320212021: Mar 3 – Apr 6, 39 sap days3920202020: Mar 1 – Apr 2, 48 sap days4820192019: Mar 9 – Apr 11, 45 sap days4520182018: Mar 19 – Apr 23, 49 sap days4920172017: Mar 1 – Apr 3, 41 sap days4120162016: Feb 20 – Mar 23, 44 sap days4420152015: Mar 16 – Apr 16, 26 sap days2620142014: Mar 11 – Apr 12, 36 sap days3620132013: Mar 11 – Apr 15, 49 sap days4920122012: Feb 15 – Mar 13, 62 sap days6220112011: Mar 10 – Apr 9, 30 sap days3020102010: Feb 22 – Mar 28, 38 sap days3820092009: Mar 7 – Apr 10, 42 sap days4220082008: Mar 14 – Apr 17, 41 sap days4120072007: Mar 14 – Apr 11, 40 sap days4020062006: Feb 26 – Mar 31, 50 sap days5020052005: Mar 9 – Apr 11, 49 sap days4920042004: Mar 11 – Apr 12, 34 sap days3420032003: Mar 12 – Apr 14, 29 sap days2920022002: Mar 6 – Apr 8, 55 sap days5520012001: Mar 17 – Apr 20, 38 sap days3820002000: Feb 20 – Mar 26, 42 sap days4219991999: Mar 4 – Apr 6, 47 sap days4719981998: Feb 23 – Mar 26, 40 sap days4019971997: Mar 13 – Apr 16, 42 sap days4219961996: Mar 12 – Apr 16, 37 sap days3719951995: Feb 18 – Mar 25, 44 sap days4419941994: Mar 13 – Apr 12, 34 sap days3419931993: Mar 12 – Apr 8, 32 sap days3219921992: Mar 18 – Apr 17, 42 sap days4219911991: Mar 1 – Apr 4, 42 sap days42
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Queensbury. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

Warren County in the Census of Agriculture

USDA counts maple operations every five years. In Warren County the 2022 Census found 12 farms making syrup (+50% since 2017), with taps -13% and syrup output -16% over the same five years. That works out to about 0.29 gallons of syrup per tap in 2022 (0.30 in 2017). Among the 385 counties in this atlas, Warren County ranks 117 by taps.

Warren County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
20221212,7603,7340.29
2017814,7504,4700.30

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 Queensbury (351ft), 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

Warren County sugaring questions

When should I tap maple trees in Warren County, New York?
In a typical year the sap starts running around March 3 near Queensbury and the season winds down around April 9. 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 Warren County produce?
The 2022 Census of Agriculture counted 12 maple operations in Warren County with 12,760 taps producing 3,734 gallons of syrup, ranking 34 of 50 New York's counties with published tap counts.
How many sap days does Warren County get in a season?
On average 41.5 freeze-thaw sap days from December through May at Queensbury, of which about 12 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2012 (62 sap days); the leanest was 2015 (26).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Queensbury (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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