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Pennsylvania · county maple atlas

Maple sugaring in Clearfield County, Pennsylvania

Clearfield County had 7 maple operations and 1,010 taps in the 2022 Census. Around Clearfield, sap usually runs from February 26 to March 29. Here's the long-run pattern, 36 seasons of sap weather, and the outlook this week.
Too early to tapAbout 143 days until the usual start.
Sap starts
Feb 26
typical year
Season ends
Mar 29
about 4 weeks
Sap days / season
48.7
1991–2026 average
Taps, 2022
1,010
#27 of 45 in PA

Sap-flow outlook at Clearfield right now

Full Pennsylvania forecast →

Forecast for Clearfield, PA

Updated Oct 6, 8:31 AM EDT

Off-season for now. Sap needs freezing nights, and none are in sight. Clearfield County's season usually opens around February 26, which is 143 days away.

No freeze-thaw days in the forecast

freeze thaw 32°F

  1. WedOct 7
    38° / 70°

    0h below · 24h above

    No refreeze forecast
  2. ThuOct 8
    51° / 70°

    0h below · 24h above

    No refreeze forecast
  3. FriOct 9
    41° / 66°

    0h below · 24h above

    No refreeze forecast
  4. SatOct 10
    41° / 70°

    0h below · 24h above

    No refreeze forecast
  5. SunOct 11
    46° / 69°

    0h below · 24h above

    No refreeze forecast
  6. MonOct 12
    51° / 71°
    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 Clearfield

Freeze-thaw weather at Clearfield peaks in the weeks of Feb 16 to Apr 6, which hold about 48% of a season's sap days. March is the busiest month.
Typical season: Feb 26 – Mar 290246Week of Dec 1: 2.3 sap days on averageWeek of Dec 8: 2.2 sap days on averageWeek of Dec 15: 2.2 sap days on averageWeek of Dec 22: 2.1 sap days on averageWeek of Dec 29: 1.7 sap days on averageWeek of Jan 5: 1.6 sap days on averageWeek of Jan 12: 1.7 sap days on averageWeek of Jan 19: 1.2 sap days on averageWeek of Jan 26: 1.7 sap days on averageWeek of Feb 2: 2.3 sap days on averageWeek of Feb 9: 2.1 sap days on averageWeek of Feb 16: 2.6 sap days on averageWeek of Feb 23: 2.4 sap days on averageWeek of Mar 2: 3.4 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: 2.8 sap days on averageWeek of Apr 6: 2.7 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: 0.6 sap days on averageWeek of May 4: 0.4 sap days on averageWeek of May 11: 0.2 sap days on averageWeek of May 18: 0.2 sap days on averageWeek of May 25: 0.0 sap days on averageDecJanFebMarAprMaytaps in ~Feb 26
Average number of freeze-thaw sap days in each week of the season at Clearfield, 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 Feb 21; the middle half of seasons fell between Feb 10 and Mar 2. Earliest Jan 26 (2023), latest Mar 9 (1994).
Closing signal
Median Mar 26; middle half between Mar 14 and Apr 4. Earliest Feb 28 (2017), latest Apr 12 (1994).
Sap days by month
Dec20%Jan14%Feb19%Mar30%Apr16%May2%

36 seasons of sap weather

Clearfield County seasons, 1991–2026

The best sap year at Clearfield was 2020 with 69 freeze-thaw days; the leanest was 2003 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 4 – Mar 4, 44 sap days4420252025: Feb 18 – Mar 25, 38 sap days3820242024: Jan 30 – Mar 3, 47 sap days4720232023: Jan 26 – Mar 2, 63 sap days6320222022: Feb 15 – Mar 15, 56 sap days5620212021: Feb 21 – Mar 23, 47 sap days4720202020: Feb 8 – Mar 15, 69 sap days6920192019: Mar 3 – Apr 4, 49 sap days4920182018: Feb 24 – Mar 31, 52 sap days5220172017: Feb 6 – Feb 28, 38 sap days3820162016: Feb 10 – Mar 13, 56 sap days5620152015: Mar 9 – Apr 12, 40 sap days4020142014: Mar 8 – Apr 10, 40 sap days4020132013: Mar 6 – Apr 7, 49 sap days4920122012: Feb 10 – Mar 13, 66 sap days6620112011: Mar 6 – Apr 6, 33 sap days3320102010: Feb 18 – Mar 18, 33 sap days3320092009: Feb 24 – Mar 31, 47 sap days4720082008: Mar 5 – Apr 4, 41 sap days4120072007: Feb 19 – Mar 22, 42 sap days4220062006: Feb 6 – Mar 9, 47 sap days4720052005: Mar 1 – Apr 5, 42 sap days4220042004: Feb 23 – Mar 25, 40 sap days4020032003: Feb 27 – Apr 2, 31 sap days3120022002: Feb 8 – Mar 14, 67 sap days6720012001: Mar 6 – Apr 5, 43 sap days4320002000: Feb 3 – Mar 8, 55 sap days5519991999: Feb 27 – Mar 30, 57 sap days5719981998: Feb 2 – Mar 8, 50 sap days5019971997: Feb 21 – Mar 27, 55 sap days5519961996: Mar 1 – Apr 5, 50 sap days5019951995: Feb 15 – Mar 19, 63 sap days6319941994: Mar 9 – Apr 12, 52 sap days5219931993: Mar 5 – Apr 7, 44 sap days4419921992: Feb 19 – Mar 26, 52 sap days5219911991: Feb 20 – Mar 26, 54 sap days54
Each bar runs from the season's opening signal to its closing signal, estimated from daily temperatures at Clearfield. Dashed lines mark the typical dates. The right column counts freeze-thaw sap days from December through May.

Maple production

Clearfield County in the Census of Agriculture

USDA counts maple operations every five years. In Clearfield County the 2022 Census found 7 farms making syrup (+75% since 2017), with taps +405% and syrup output +19% over the same five years. That works out to about 0.09 gallons of syrup per tap in 2022 (0.36 in 2017). Among the 385 counties in this atlas, Clearfield County ranks 282 by taps.

Clearfield County maple production, 2017 and 2022 (USDA Census of Agriculture)
Census yearFarmsTapsGallons of syrupGal / tap
202271,010860.09
20174200720.36

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 Clearfield (1,358ft), 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 Pennsylvania'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 — Pennsylvania, 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

Clearfield County sugaring questions

When should I tap maple trees in Clearfield County, Pennsylvania?
In a typical year the sap starts running around February 26 near Clearfield and the season winds down around March 29. 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 26 and as late as Mar 9.
How much maple syrup does Clearfield County produce?
The 2022 Census of Agriculture counted 7 maple operations in Clearfield County with 1,010 taps producing 86 gallons of syrup, ranking 27 of 45 Pennsylvania's counties with published tap counts.
How many sap days does Clearfield County get in a season?
On average 48.7 freeze-thaw sap days from December through May at Clearfield, of which about 14.4 are textbook days with a night in the 20s and a day in the 40s. The best season since 1991 was 2020 (69 sap days); the leanest was 2003 (31).
Where do these dates come from?
From 36 seasons of daily high and low temperatures at Clearfield (PRISM 4-km grid), scored with the same freeze-thaw rule as our live forecast, then calibrated against USDA's reported season dates for Pennsylvania. 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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