Soil Moisture in Maine
Across 2 monitoring stations in Maine, 1 is about normal, and 1 is drier than normal. Last updated August 16, 2026.
How This Is Measured
Every reading here is measured by an in-ground sensor at USDA SCAN (Soil Climate Analysis Network) and NOAA USCRN (US Climate Reference Network) stations, at or near the 2-inch root-zone depth, not modeled. A raw moisture percentage is not comparable between two soils, so each station is compared against its own history for the date. That comparison, wetter or drier than this station normally is, is the honest signal.
Stations Measuring Soil Moisture in Maine (2)
| Station | Depth | Moisture | vs. Normal | Last Reading |
|---|---|---|---|---|
| Limestone 4 NNW | 2" | 14% | Normal for this time of year | 2026-08-16 |
| Old Town 2 W | 2" | 9% | Drier than normal | 2026-08-16 |
Moisture is the volumetric water content at the sensor. It is not comparable between soils, which is why the “vs. normal” comparison against each station’s own history is the reading to trust. A dash means that station does not yet have enough of its own history for a confident comparison.
Cities in Maine (15)
Open a city for its nearest station’s current soil moisture and temperature, planting windows, and lawn-care timing.
| City | ZIP |
|---|---|
| Auburn | 04210 |
| Augusta | 04330 |
| Bangor | 04401 |
| Biddeford | 04005 |
| Castine | 04420 |
| Freeport | 04032 |
| Lewiston | 04240 |
| Limestone | 04750 |
| New Portland | 04954 |
| Orono | 04469 |
| Portland | 04101 |
| Scarborough | 04070 |
| South Portland | 04106 |
| Waterville | 04901 |
| Westbrook | 04092 |
Soil Moisture FAQ for Maine
How wet is the soil in Maine right now?
Across 2 monitoring stations in Maine, 1 is about normal, and 1 is drier than normal. Last updated August 16, 2026. Each station is compared against its own moisture history for the date, so the reading means the same thing everywhere.
Where does Maine soil moisture data come from?
Every value is measured by an in-ground sensor, not estimated from a weather model. Readings come from the USDA SCAN network and NOAA USCRN stations, at or near the 2-inch root-zone depth (some stations report at the nearest available depth), and are refreshed daily.
What does wetter or drier than normal mean?
For each station, the current reading is compared against that station's own readings around this date across several years, after leaving out frozen-soil days. A raw moisture percentage is not comparable between two different soils, so the comparison against a station's own history is what makes the reading meaningful.
See the national soil moisture map, the full Maine soil temperature directory (all depths), or the live national soil temperature map.