Overview Realtime Historical Map View

Potomac Historical Data

Historical Data


Date Snowpack SWE Snowfall Air Temperature
2025-01-31 8.0"
2025-02-01 7.0"
2025-02-13 14.0"
2025-02-14 14.0"
2025-02-16 0"
2025-02-17 0"
2025-02-18 24.0"
2025-02-20 24.0"
2025-04-16 0"
2025-04-17 1.0"
2025-10-12 0"
2025-10-13 1.0"
2025-10-14 1.0"
2025-12-06 3.0"
2025-12-09 0"
2025-12-10 3.0"
2025-12-23 0"
2025-12-24 1.0"
2025-12-26 0"
2025-12-27 1.0"
2026-01-01 1.0"
2026-01-02 2.0"
2026-01-04 1.0"
2026-01-05 1.0"
2026-01-06 1.0"
2026-01-07 2.0"
2026-02-08 0"
2026-02-09 1.0"
2026-03-12 0"
2026-03-13 1.0"
2026-03-14 6.0"
2026-06-26 0.0"
2026-06-27 0.0"
2026-06-28 0.0"
2026-06-29 0.0"
2026-06-30 0.0"

Snowfall Calendar


Date Average 2026 2025
01-01 0.3
01-02 0.4
01-04 0.3
01-05 0.4
01-06 0.6
01-07 0.8
02-08 0.3
02-09 0.4
03-12 0.3
03-13 2.4
03-14 1.8
10-12 0.3
10-13 0.7
10-14 0.3
12-06 0.4
12-09 0.9
12-10 1.1
12-23 0.3
12-24 0.4
12-26 0.3
12-27 0.4

Annual Peak Snowpack


Seasonal Comparison


Oceanic Nino Index