Basin/Station Averages

These long-term averages are updated every 10 years and are used to calculate monthly departure.

Last Update: 2000

Month	Average Precipitation	Average Runoff
January	2.72"	1.58"
February	2.21"	1.5"
March	3.3"	1.94"
April	3.7"	1.81"
May	4.06"	1.36"
June	4.06"	1"
July	3.87"	0.7"
August	3.26"	0.45"
September	2.81"	0.29"
October	2.57"	0.33"
November	3"	0.6"
December	2.74"	1.04"
Average Yearly Total	38.3	12.6

 

		Average Precipitation
Station	ID	Jan.	Feb.	Mar.	Apr.	May	Jun.	July	Aug.	Sept.	Oct.	Nov.	Dec.	Average Yearly Total
Alcony	0	2.24	2.12	2.71	3.97	4.50	3.82	4.22	2.81	2.71	2.63	3.30	2.72	37.75
Arcanum	1	2.49	2.09	3.26	3.87	4.48	3.83	4.10	3.47	2.54	2.68	3.18	2.91	38.90
Beechwood	AB	2.62	2.30	3.24	4.02	4.53	3.77	4.10	3.25	2.39	2.97	3.30	2.97	39.46
Brookville	1A	2.35	2.16	3.04	3.89	4.53	3.93	3.54	3.25	2.29	2.62	3.17	2.92	37.69
Centerville	1B0	2.77	2.37	3.50	4.38	4.49	3.97	4.09	3.46	2.96	2.67	3.34	3.07	41.07
Collinsville	1B1	2.62	2.41	3.31	4.16	4.66	3.86	4.11	3.51	2.57	2.97	3.29	3.11	40.59
Covington	2	2.38	2.26	3.06	3.82	4.13	4.06	4.05	3.14	2.61	2.56	3.09	2.71	37.85
Dayton	3	2.99	2.49	3.44	3.54	3.92	3.95	3.51	3.07	2.79	2.48	2.94	2.68	37.80
DeGraff	4	2.20	1.93	2.83	3.63	3.89	4.11	4.43	3.30	2.64	2.49	3.08	2.77	37.30
Eaton	5	2.98	2.39	3.56	3.95	4.20	4.07	3.66	3.36	2.95	2.60	3.09	2.92	39.73
Englewood Dam	6	2.80	2.17	3.24	3.68	3.99	4.07	3.70	3.30	2.79	2.55	3.02	2.65	37.96
Ft. Loramie	7	2.36	1.87	2.98	3.42	3.52	4.03	3.84	3.05	2.89	2.37	2.68	2.39	35.40
Franklin	8	3.04	2.46	3.41	3.83	4.20	3.93	3.83	3.15	2.95	2.64	3.13	2.83	39.42
Germantown Dam	9	3.03	2.27	3.48	3.68	4.17	3.81	3.55	3.10	2.90	2.57	3.08	2.83	38.47
Greenville	10	2.69	2.24	3.43	3.54	3.84	4.15	3.68	3.15	2.88	2.53	2.86	2.55	37.54
Hamilton	11	3.10	2.40	3.74	3.83	4.15	3.90	3.70	3.47	3.10	2.62	3.07	2.89	39.97
Huffman Dam	12	2.70	2.20	3.26	3.63	4.03	4.02	3.84	3.23	2.88	2.51	3.05	2.74	38.09
Ingomar	13	2.79	2.23	3.42	3.73	4.06	3.76	3.67	3.18	2.81	2.54	3.17	2.93	38.29