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Daily mean flow rate (cfs) for water year 2026
43a - Shingle Mill Creek, Vashon Island Stream Gauge(Recording)

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Day of Month	Oct	Nov	Dec	Jan	Feb	Mar	Apr	May
1	2.31	9.57	3.02	9.43	10.89	1.66	7.83	1.01
2	2.02	3.45	3.01	10.03	12.54	1.40	7.67	0.94
3	1.98	2.88	2.81	13.73	8.76	1.43	3.68	0.94
4	1.98	2.73	3.36	16.67	5.68	5.21	2.68	0.94
5	1.98	5.07	3.69	16.69	4.21	4.49	2.17	0.94
6	1.98	12.04	3.29	18.62	3.24	3.62	1.85	0.93
7	1.98	6.16	5.63	17.65	7.87	4.27	1.58	0.90
8	1.98	3.45	11.80	14.64	9.13	3.12	1.40	0.86
9	1.98	3.05	17.17	12.49	5.42	2.31	1.27	0.82
10	1.98	3.01	24.21	10.75	4.10	1.93	1.23	0.83
11	1.98	2.96	26.32	16.89	3.09	9.18	1.27	0.82
12	2.04	3.01	19.27	17.80	2.45	13.86	1.23	0.82
13	2.00	5.46	15.74	14.20	2.93	16.19	1.13	0.83
14	1.99	14.74	13.88	11.60	3.50	15.92	2.83	0.82
15	2.01	7.09	23.87	8.36	2.50	12.83	10.58	0.93
16	2.10	3.90	24.25	6.31	2.35	8.49	9.56	0.89
17	2.37	3.92	31.34	5.13	2.36	8.33	4.07	0.82
18	2.43	3.28	24.65	4.01	2.06	9.72	2.78
19	3.00	2.92	22.10	3.48	2.23	11.17	2.12
20	2.52	3.00	21.57	2.85	1.83	13.37	1.72
21	2.46	2.73	21.35	2.50	3.10	8.39	1.51
22	2.46	2.68	19.83	2.21	5.08	4.45	3.06
23	2.46	3.36	18.71	1.91	9.10	3.11	2.08
24	4.20	3.12	16.87	1.60	5.12	12.12	1.66
25	3.88	3.17	16.34	1.47	3.29	12.25	1.41
26	4.44	3.71	16.24	1.39	2.49	6.15	1.27
27	3.05	4.73	14.10	1.34	2.07	3.98	1.19
28	2.96	6.58	13.03	1.62	1.81	2.97	1.08
29	3.23	3.79	12.21	4.34		2.76	1.08
30	3.00	3.22	11.43	7.64		2.83	1.07
31	4.19		9.99	6.59		2.15
Instantaneous Min*	1.98	2.73	3.02	1.23	1.39	1.39	0.94	0.82
Mean	2.55	4.63	15.20	8.51	4.61	6.76	2.80	0.88
Instantaneous Max*	10.46	23.53	39.52	24.25	15.74	21.77	15.42	1.20

* "Instantaneous Min" and "Instantaneous Max" are calculated based on 15 minute continuous data.