Scientific Investigations Report 2007–5038
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5038
Table 5. Mean monthly precipitation at active weather stations and U.S. Department of Agriculture recharge.
[Western Regional Climate Center (2006a, 2006b). Mean precipitation values are through December 31, 2005. Abbreviations: Exp. Stat., experiment station; WSO, Weather Service Office; in., inch; ratio, recharge to precipitation ratio]
| Station name | |||||||
|---|---|---|---|---|---|---|---|
| Bayview Model Basin | Coeur D’Alene 1E | Newport | Priest River Exp. Stat. | Sandpoint Exp. Stat. | Spokane WSO Airport | ||
| January | Precipitation (in.) | 2.8 | 3.4 | 3.2 | 4.0 | 4.1 | 2.0 |
| Recharge (in.) | 1.9 | 2.3 | 2.2 | 2.8 | 2.8 | 1.3 | |
| Ratio (percent) | 69 | 69 | 69 | 70 | 70 | 68 | |
| February | Precipitation (in.) | 2.1 | 2.5 | 2.4 | 3.0 | 3.1 | 1.5 |
| Recharge (in.) | 1.5 | 1.7 | 1.6 | 2.0 | 2.2 | 1.0 | |
| Ratio (percent) | 68 | 68 | 68 | 69 | 69 | 67 | |
| March | Precipitation (in.) | 2.0 | 2.3 | 2.3 | 2.7 | 2.8 | 1.4 |
| Recharge (in.) | 1.4 | 1.5 | 1.5 | 1.9 | 1.9 | .93 | |
| Ratio (percent) | 68 | 68 | 68 | 69 | 69 | 67 | |
| April | Precipitation (in.) | 1.8 | 1.7 | 1.8 | 2.1 | 2.1 | 1.1 |
| Recharge (in.) | 1.2 | 1.1 | 1.2 | 1.4 | 1.4 | .72 | |
| Ratio (percent) | 66 | 66 | 66 | 68 | 66 | 64 | |
| May | Precipitation (in.) | 2.1 | 2.0 | 2.1 | 2.3 | 2.3 | 1.4 |
| Recharge (in.) | 1.3 | 1.3 | 1.3 | 1.6 | 1.5 | .87 | |
| Ratio (percent) | 64 | 62 | 63 | 68 | 63 | 61 | |
| June | Precipitation (in.) | 1.8 | 1.8 | 1.9 | 2.3 | 2.3 | 1.2 |
| Recharge (in.) | 1.1 | 1.0 | 1.1 | 1.5 | 1.4 | .68 | |
| Ratio (percent) | 60 | 58 | 60 | 68 | 60 | 57 | |
| July | Precipitation (in.) | 1.0 | .7 | .9 | 1.0 | 1.0 | .55 |
| Recharge (in.) | .54 | .38 | .52 | .69 | .54 | .29 | |
| Ratio (percent) | 56 | 53 | 55 | 66 | 55 | 53 | |
| August | Precipitation (in.) | 1.1 | .9 | 1.0 | 1.2 | 1.2 | .63 |
| Recharge (in.) | .62 | .51 | .57 | .77 | .68 | .35 | |
| Ratio (percent) | 58 | 55 | 58 | 66 | 58 | 56 | |
| September | Precipitation (in.) | 1.2 | 1.3 | 1.4 | 1.6 | 1.7 | .80 |
| Recharge (in.) | .76 | .79 | .86 | 1.1 | 1.1 | .49 | |
| Ratio (percent) | 63 | 62 | 63 | 67 | 64 | 62 | |
| October | Precipitation (in.) | 2.1 | 2.0 | 2.2 | 2.6 | 2.6 | 1.2 |
| Recharge (in.) | 1.4 | 1.3 | 1.5 | 1.8 | 1.8 | .76 | |
| Ratio (percent) | 67 | 66 | 68 | 68 | 68 | 65 | |
| November | Precipitation (in.) | 2.9 | 3.1 | 3.5 | 4.0 | 4.3 | 2.1 |
| Recharge (in.) | 2.0 | 2.1 | 2.4 | 2.8 | 3.1 | 1.4 | |
| Ratio (percent) | 69 | 69 | 70 | 70 | 72 | 68 | |
| December | Precipitation (in.) | 3.2 | 3.6 | 3.7 | 4.4 | 4.6 | 2.2 |
| Recharge (in.) | 2.2 | 2.5 | 2.6 | 3.2 | 3.3 | 1.5 | |
| Ratio (percent) | 69 | 70 | 70 | 72 | 73 | 68 | |
| Annual | Precipitation (in.) | 24 | 25 | 26 | 31 | 31 | 16 |
| Recharge (in.) | 16 | 17 | 17 | 22 | 22 | 10 | |
| Ratio (percent) | 66 | 66 | 66 | 69 | 68 | 64 | |
U.S.
Department of the Interior | U.S. Geological
Survey
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