Maple sugaring in Greene County, Ohio
- Sap starts
- Feb 10
- typical year
- Season ends
- Mar 18
- about 5 weeks
- Sap days / season
- 39.4
- 1991–2026 average
- Taps, 2022
- 305
- #49 of 63 in OH
Sap-flow outlook at Xenia right now
Full Ohio forecast →Forecast for Xenia, OH
Updated Oct 6, 4:00 AM EDT
Off-season for now. Sap needs freezing nights, and none are in sight. Greene County's season usually opens around February 10, which is 127 days away.
No freeze-thaw days in the forecast
freeze thaw 32°F
- WedOct 746° / 77°
0h below · 24h above
No refreeze forecast - ThuOct 852° / 73°
0h below · 24h above
No refreeze forecast - FriOct 945° / 71°
0h below · 24h above
No refreeze forecast - SatOct 1047° / 76°
0h below · 24h above
No refreeze forecast - SunOct 1154° / 74°
0h below · 24h above
No refreeze forecast - MonOct 1255° / 77°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 Xenia
Year-to-year spread
- Opening signal
- Median Feb 5; the middle half of seasons fell between Jan 27 and Feb 13. Earliest Jan 9 (2023), latest Mar 4 (2010).
- Closing signal
- Median Mar 8; middle half between Feb 26 and Mar 14. Earliest Feb 1 (2006), latest Mar 30 (2014).
- Sap days by month
- Dec24%Jan18%Feb24%Mar27%Apr7%May0%
36 seasons of sap weather
Greene County seasons, 1991–2026
Maple production
Greene County in the Census of Agriculture
USDA counts maple operations every five years. In Greene County the 2022 Census found 8 farms making syrup (+100% since 2017), with taps +129% and syrup output +90% over the same five years. That works out to about 0.26 gallons of syrup per tap in 2022 (0.31 in 2017). Among the 385 counties in this atlas, Greene County ranks 330 by taps.
| Census year | Farms | Taps | Gallons of syrup | Gal / tap |
|---|---|---|---|---|
| 2022 | 8 | 305 | 78 | 0.26 |
| 2017 | 4 | 133 | 41 | 0.31 |
Nearby
Neighboring maple counties
15 mi · Dayton, OH
Montgomery County
Sap ~Feb 8 – Mar 14 · 253 taps
17 mi · Wilmington, OH
Clinton County
Sap ~Feb 11 – Mar 19 · 2,180 taps
23 mi · Lebanon, OH
Warren County
Sap ~Feb 6 – Mar 14 · 8,960 taps
28 mi · Troy, OH
Miami County
Sap ~Feb 12 – Mar 18 · 4,317 taps
31 mi · Urbana, OH
Champaign County
Sap ~Feb 18 – Mar 25 · 1,724 taps
37 mi · Hillsboro, OH
Highland County
Sap ~Feb 6 – Mar 16 · 5,882 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 Xenia (994ft), 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 Ohio's USDA record (8 years). Production figures are copied from the Census as published. Full method, calibration tables and the downloadable dataset →
Sources · 6
- 1.2022 Census of Agriculture, County Level Data — Ohio, 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
Greene County sugaring questions
- When should I tap maple trees in Greene County, Ohio?
- In a typical year the sap starts running around February 10 near Xenia and the season winds down around March 18. 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 9 and as late as Mar 4.
- How much maple syrup does Greene County produce?
- The 2022 Census of Agriculture counted 8 maple operations in Greene County with 305 taps producing 78 gallons of syrup, ranking 49 of 63 Ohio's counties with published tap counts.
- How many sap days does Greene County get in a season?
- On average 39.4 freeze-thaw sap days from December through May at Xenia, of which about 14.1 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2018 (52 sap days); the leanest was 2003 (22).
- Where do these dates come from?
- From 36 seasons of daily high and low temperatures at Xenia (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for Ohio. They describe a typical year at one point in the county; your sugarbush, slope and elevation can shift them by days.


