Diablo Reservoir water level today
Lake in Whatcom County, Washington
1,202.45ft
366.51 m · gauge reading (local datum, not an elevation)
Measured · provisional
Above normal for the date
What this means
It is higher than on Oct 21 in every one of the last 10 years on record.
The lake has risen 2.11 ft in 7 days and risen 2.17 ft in 30 days.
Since 1982, the lowest daily level was 1,182.68 ft (Oct 1987) and the highest 1,205.83 ft (Jul 1991).
Diablo Reservoir level chart
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Same date in past years
| Date | Level | vs today |
|---|---|---|
| Oct 21, 2025 | 1,200.26 ft | ▼ 2.19 ft |
| Oct 21, 2024 | 1,202.31 ft | ▼ 0.14 ft |
| Oct 21, 2023 | 1,202.22 ft | ▼ 0.23 ft |
| Oct 21, 2022 | 1,201.42 ft | ▼ 1.03 ft |
| Oct 21, 2021 | 1,200.38 ft | ▼ 2.07 ft |
| Oct 21, 2020 | 1,201.25 ft | ▼ 1.20 ft |
| Oct 21, 2019 | 1,198.08 ft | ▼ 4.37 ft |
| Oct 21, 2018 | 1,201.88 ft | ▼ 0.57 ft |
| Oct 21, 2017 | 1,196.11 ft | ▼ 6.34 ft |
| Oct 21, 2016 | 1,199.68 ft | ▼ 2.77 ft |
Records & details
- Highest
- 1,205.83 ft on Jul 21, 1991
- Lowest
- 1,182.68 ft on Oct 4, 1987
- Records from
- 1982 (44 years of daily data)
- Water temperature
- Not measured here
Weather & wind
This Afternoon66°F · Sunny
Wind W 5 to 8 mph
Wind W 5 to 8 mph
Tonight45°F · Mostly Cloudy
Wind NW 1 to 5 mph
Wind NW 1 to 5 mph
Thursday60°F · Mostly Sunny
Wind WNW 1 to 10 mph
Wind WNW 1 to 10 mph
Thursday Night41°F · Mostly Cloudy
Wind W 10 mph
Wind W 10 mph
Friday54°F · Sunny
Wind NW 8 mph
Wind NW 8 mph
Friday Night41°F · Partly Cloudy
Wind S 3 to 7 mph
Wind S 3 to 7 mph
NOAA National Weather Service forecast for this lake's location, updated 1 h ago.