Water Year Data – Underwood Heights Weather

Water years are defined as precipitation (rain and snow water equivalent) that fall between October 1^st and September 30^th.

Updated: 7.17.2025

Month	2024-2025 Precip	2024-2025 Snow	2023-2024 Precip	2023-2024 Snow	2022-2023 Precip	2022-2023 Snow	2021-2022 Precip	2021-2022 Snow	2020-2021 Precip	2020-2021 Snow	2019-2020 Precip	2019-2020 Snow	2018-2019 Precip	2018-2019 Snow	2017-2018 Precip	2017-2018 Snow
ENSO	La Niña		El Niño		La Niña		La Niña		La Niña		Neutral		El Niño		Neutral
Oct	2.18	0.00	2.27	0.00	1.87	0.00	2.78	0.00	4.82	0.00	3.33	0.00	2.77	0.00	6.88	0.00
Nov	7.17	0.00	5.70	0.00	7.26	6.40	8.94	0.00	8.51	0.00	0.89	0.00	3.68	0.00	10.22	0.00
Dec	11.67	7.20	9.54	6.90	9.27	19.30	9.74	32.26	7.77	7.70	4.71	4.50	9.08	4.80	5.92	12.20
Jan	3.14	8.60	13.40	23.10	3.64	7.50	7.53	39.60	7.01	1.40	13.73	17.60	4.43	7.20	7.85	0.00
Feb	5.92	15.40	5.29	20.60	3.85	13.5	2.22	0.20	8.20	16.40	4.84	0.50	6.89	72.55	4.73	13.50
Mar	6.37	0.00	3.05	0.60	3.31	2.20	4.06	0.90	1.68	1.40	2.76	2.90	1.45	4.40	2.64	0.40
Apr	1.23	0.00	1.55	0.00	4.32	1.60	5.71	14.06	0.30	0.00	1.44	0.00	4.87	0.00	4.73	0.40
May	1.04	0.00	2.76	0.00	0.39	0.00	4.23	0.00	0.96	0.00	2.11	0.00	0.80	0.00	0.04	0.00
Jun	0.22	0.00	1.81	0.00	0.04	0.00	2.94	0.00	1.08	0.00	1.52	0.00	0.31	0.00	0.63	0.00
Jul	0.00	0.00	0.13	0.00	0.00	0.00	0.11	0.00	0.00	0.00	0.05	0.00	0.16	0.00	0.00	0.00
Aug			0.85	0.00	0.19	0.00	0.08	0.00	0.02	0.00	0.03	0.00	1.03	0.00	0.01	0.00
Sep			0.20	0.00	2.05	0.00	0.39	0.00	1.92	0.00	1.37	0.00	2.25	0.00	0.86	0.00
Total	38.84	31.20	46.55	51.20	36.09	50.50	49.21	84.16	42.27	26.90	36.78	25.50	37.72	88.95	44.51	26.50

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