Hydrologic Information Center Data Download

Daily mean lake level (ft) for water year 2026
GNVLK - Lake Geneva Temperature and Lake Level (Recording)

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Day of Month	Oct	Nov	Dec	Jan	Feb	Mar	Apr
1	373.52	374.03	374.86	375.30	375.29	375.28	375.26
2	373.53	374.06	374.86	375.33	375.33	375.26	375.25
3	373.52	374.07	374.86	375.36	375.35	375.25	375.23
4	373.52	374.09	374.89	375.44	375.34	375.28	375.21
5	373.51	374.11	374.96	375.51	375.33	375.30	375.18
6	373.51	374.20	374.97	375.53	375.31	375.30	375.15
7	373.50	374.26	375.01	375.53	375.33	375.34
8	373.48	374.28	375.15	375.50	375.40	375.33
9	373.47	374.28	375.43	375.47	375.42	375.31
10	373.47	374.28	375.71	375.44	375.41	375.29
11	373.47	374.29	376.03	375.45	375.38	375.36
12	373.47	374.29	376.08	375.48	375.35	375.52
13	373.45	374.33	375.97	375.48	375.34	375.81
14	373.45	374.41	375.83	375.46	375.35	375.98
15	373.44	374.51	375.80	375.43	375.35	376.00
16	373.43	374.53	375.85	375.41	375.33	375.94
17	373.43	374.56	375.95	375.38	375.31	375.86
18	373.43	374.58	375.95	375.35	375.33	375.83
19	373.49	374.59	375.89	375.33	375.33	375.82
20	373.50	374.60	375.81	375.30	375.30	375.88
21	373.50	374.61	375.73	375.28	375.30	375.83
22	373.49	374.62	375.66	375.26	375.30	375.73
23	373.49	374.65	375.61	375.23	375.36	375.62
24	373.54	374.66	375.55	375.22	375.37	375.62
25	373.67	374.68	375.51	375.20	375.34	375.64
26	373.80	374.73	375.48	375.19	375.33	375.57
27	373.82	374.76	375.43	375.18	375.31	375.49
28	373.83	374.83	375.40	375.16	375.30	375.41
29	373.88	374.86	375.37	375.19		375.35
30	373.90	374.86	375.34	375.24		375.31
31	373.90		375.32	375.26		375.26
Min	373.41	373.97	374.84	375.15	375.24	375.23	375.14
Mean	373.54	374.43	375.45	375.33	375.32	375.50	375.19
Max	373.96	374.87	376.12	375.55	375.43	376.02	375.28