State · United States · USGS · BOR · USACE · CDEC
Massachusetts
79.6% average fill
Measured
2
Volume stored
1,437 hm³
Measured capacity
1,806 hm³
Is your city close to water restrictions? See the US tracker
Loading map…
Drought Monitor · 27 October 2026
Weekly map · area in each categoryDrought status
3.9%
of the area in drought (D1 or worse)
Worst category: D1 moderate drought
unchanged on the week
Severe or worse (D2+)
0.0%
Extreme or worse (D3+)
0.0%
DSCI
290–500
People in drought
177,000
Reservoirs (reservoirs.earth)
79.6% full2 tracked
Reservoirs on drought ground
0 of 2
As of the 27 October 2026 U.S. Drought Monitor map, 3.9% of Massachusetts was in drought (D1 or worse). The 2 reservoirs we track in Massachusetts were 79.6% full on their latest readings. 0 of 2 tracked reservoir sites sit inside the drought area.
The Drought Monitor maps where conditions are dry this week — rainfall, soil moisture, streamflow — not how much water is stored. Reservoir storage lags it by months, so a region can be in drought with full reservoirs, or out of drought with empty ones. Source: droughtmonitor.unl.edu. The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.
Reservoirs
Sorted by capacityQuabbin Reservoir
Updated 2026-10-01
Wachusett Reservoir
Updated 2026-10-01
Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC) and, in Texas, the Texas Water Development Board. Fill % uses design capacity from the National Inventory of Dams where available; Water Data for Texas lakes use that board's conservation capacity; a few sites without a match fall back to the 5-year maximum. D0–D4 is the U.S. Drought Monitor category of the ground at the reservoir’s coordinates on the latest weekly map — local conditions, not storage.
⚠️ The most recent reading we have for Massachusetts is 33 days old — the official source may be delayed. Figures below may not reflect today’s levels.
About reservoirs in Massachusetts
As of October 1, 2026, the reservoirs we track across Massachusetts that report live levels hold roughly 1,437 hm³ of water — about 79.6% of their combined capacity. Taken together, Massachusetts's reservoirs are within their normal operating range.
None of the tracked reservoirs are currently at critically low levels. Wachusett Reservoir is the fullest at 92.8%, while Quabbin Reservoir is the lowest at 77.5%.
Storage figures for Massachusetts come from USGS · USACE · BOR · CDEC; the most recent reading is from October 1, 2026. Each reservoir below links to its own page with full history and seasonal context.
Massachusetts at a glance
- Reservoirs tracked
- 2
- Average fill
- 79.6%
- Water stored
- 1,437 hm³
- Combined capacity
- 1,806 hm³
- Fullest
- Wachusett Reservoir (92.8%)
- Lowest
- Quabbin Reservoir (77.5%)
- Last updated
- October 1, 2026