Folsom Lake Water Level Today
65.6 ft below full pool, 39.1% full, and 6.3 ft lower than a year ago.
Daily reading for Oct 25
Trend and source week, month, year
Source: U.S. Bureau of Reclamation. Check it at cdec.water.ca.gov/dynamicapp/QueryF?s=FOL
Folsom Lake, California. Run by USBR.
Folsom Lake level
Daily level, past 12 months, feet above sea level (NGVD29). Shaded: the normal range, the middle half of readings for each date, 1991 to 2025. U.S. Bureau of Reclamation; 2 days from the California Department of Water Resources (CDEC).
Monthly average since Mar 1, 1955; gaps where the record is missing. U.S. Bureau of Reclamation; 2 days from the California Department of Water Resources (CDEC).
About Folsom Lake today
How full is Folsom Lake?39.1% full, 65.6 ft below full pool
39.1% full by storage on Oct 25. Total storage / reservoir capacity (977,000 af), as CDEC reports "% of capacity".
Full pool is 466.00 ft.
How low is Folsom Lake?52.8 ft above its lowest since 1958
65.6 ft below full pool. The lowest daily level in our record since 1958 is 347.56 ft, on Nov 20, 1977. Our record starts Mar 1, 1955; the first 3 years are left out of the record low because the lake was still filling for the first time.
Is Folsom Lake still dropping?Yes: down 1.93 ft this week
| Change | Feet | Level then |
|---|---|---|
| Past day (since Oct 24) | 0.17 down | 400.53 |
| Past 7 days (since Oct 18) | 1.93 down | 402.29 |
| Past 30 days (since Sep 25) | 7.32 down | 407.68 |
| Past year (since Oct 25, 2025) | 6.35 down | 406.71 |
Is Folsom Lake lower than normal?Yes: 4.4 ft below normal for this date
Normal for Oct 25 is 404.76 ft: the median of 245 daily readings within 3 days of this date, 1991 to 2025. Folsom Lake is 4.4 ft below it.
We haven't found an operator's statement of the reason for this lake yet, so this answer only compares the level with a normal year.
What is the water temperature at Folsom Lake?No official reading for this lake
No USGS in-lake water-temperature gauge found within the lake area (checked 2026-10-24). Stream gauges above or below the dam were not used: tailwater and inflow temperatures differ from the lake surface.
When was Folsom Lake last full?Jul 9, 1965
The last day in our record at or above 466.00 ft, today's full pool.
Folsom Lake full pool level466.00 ft
Elevations are feet above sea level (NGVD29).
Where it comes from: CDEC station FOL elevation (466 ft), same as the elevation field on RISE location 334. Dam crest is 480.5 ft (CDEC dam profile).
Folsom Lake this time last year406.7 ft on Oct 25, 2025
6.3 ft lower than a year ago.
Levels: U.S. Bureau of Reclamation, daily reading for Oct 25. Normal and records come from Creek & Lake's stored daily history (26,109 days since 1955); they aren't official unless the operator publishes the same value.