Scientific Investigations Report 2007–5038
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5038
Table 14. Monthly precipitation and dual-coefficient FAO Penman-Monteith recharge using daily values, 1995–2005, Priest River Experiment Station, Idaho.
[Western Regional Climate Center (2006a, 2006b), U.S. Department of Commerce (2006). Mean precipitation values are through December 31, 2005. Abbreviations: in., inch; ratio, recharge to precipitation ratio]
| 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | Period of record mean | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | Precipitation (in.) | 7.7 | 3.3 | 4.9 | 2.9 | 3.1 | 4.7 | 3.9 | 4.9 | 4.7 | 4.0 | 4.8 | 1.2 | 4.5 | 4.9 | 3.6 | 2.7 | 4.0 |
| Recharge (in.) | 7.0 | 2.9 | 4.2 | 2.2 | 2.6 | 4.1 | 3.4 | 4.2 | 4.0 | 3.3 | 4.1 | .63 | 3.7 | 4.3 | 3.0 | 2.1 | ||
| Ratio (percent) | 90 | 89 | 86 | 76 | 85 | 87 | 86 | 87 | 85 | 82 | 85 | 52 | 83 | 87 | 84 | 77 | ||
| February | Precipitation (in.) | 3.9 | 1.8 | 1.9 | 1.0 | 2.3 | 2.6 | 5.3 | 2.0 | 2.1 | 6.7 | 2.8 | 1.3 | 2.1 | 1.3 | 1.7 | .2 | 3.0 |
| Recharge (in.) | 3.3 | 1.0 | 1.1 | .52 | 1.3 | 2.0 | 4.2 | 1.2 | 1.3 | 5.5 | 1.7 | .57 | 1.4 | 1.0 | .68 | .00 | ||
| Ratio (percent) | 84 | 55 | 57 | 54 | 56 | 79 | 80 | 57 | 61 | 82 | 59 | 44 | 68 | 72 | 40 | 0 | ||
| March | Precipitation (in.) | 1.3 | 2.3 | .7 | 2.4 | 2.0 | 4.9 | 1.4 | 5.4 | 3.3 | 1.7 | 3.2 | 2.3 | 1.7 | 4.9 | 1.6 | 5.0 | 2.7 |
| Recharge (in.) | .44 | 1.6 | .00 | .64 | .85 | 3.2 | .23 | 3.7 | 1.2 | .15 | 1.6 | .05 | .40 | 3.0 | .40 | 3.1 | ||
| Ratio (percent) | 34 | 72 | 0 | 27 | 42 | 65 | 17 | 69 | 37 | 9 | 50 | 2 | 24 | 62 | 24 | 62 | ||
| April | Precipitation (in.) | 1.8 | 2.9 | 2.0 | 3.9 | 2.2 | 1.9 | 4.5 | 2.9 | 1.2 | 1.0 | 2.8 | 4.5 | 2.1 | 1.7 | 1.7 | 1.5 | 2.1 |
| Recharge (in.) | .23 | .89 | .10 | .31 | .06 | .20 | 1.3 | .18 | .00 | .00 | .70 | 2.0 | .55 | .00 | .00 | .16 | ||
| Ratio (percent) | 13 | 30 | 5 | 8 | 3 | 11 | 28 | 6 | 0 | 0 | 25 | 44 | 26 | 0 | 0 | 11 | ||
| May | Precipitation (in.) | 4.6 | 2.3 | .8 | 1.9 | 2.0 | 1.8 | 4.4 | 3.6 | 7.2 | 2.0 | 2.3 | 1.9 | 2.4 | 2.5 | 4.0 | 3.6 | 2.3 |
| Recharge (in.) | .53 | .00 | .00 | .00 | .02 | .20 | 1.3 | 1.2 | 3.7 | .00 | .00 | .47 | .49 | .00 | .82 | .63 | ||
| Ratio (percent) | 11 | 0 | 0 | 0 | 1 | 11 | 29 | 35 | 52 | 0 | 0 | 25 | 20 | 0 | 21 | 17 | ||
| June | Precipitation (in.) | 3.7 | 1.7 | 4.5 | 1.7 | 2.5 | 4.2 | 3.3 | 1.8 | 1.8 | 2.3 | 3.6 | 2.6 | 2.0 | 1.8 | 1.8 | 3.0 | 2.3 |
| Recharge (in.) | 1.4 | .00 | 2.7 | .00 | .00 | 1.4 | 1.4 | .06 | .00 | .00 | .76 | .14 | .13 | .00 | .00 | .10 | ||
| Ratio (percent) | 38 | 0 | 60 | 0 | 0 | 33 | 42 | 3 | 0 | 0 | 21 | 6 | 6 | 0 | 0 | 4 | ||
| July | Precipitation (in.) | 1.2 | .89 | 2.3 | 4.0 | .06 | .77 | .63 | 2.0 | 2.2 | .53 | .81 | 1.0 | .71 | .00 | .55 | 1.6 | 1.0 |
| Recharge (in.) | .09 | .00 | .39 | .54 | .00 | .00 | .00 | .00 | .35 | .00 | .00 | .00 | .00 | .00 | .00 | .14 | ||
| Ratio (percent) | 7 | 0 | 17 | 14 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | ||
| August | Precipitation (in.) | 1.7 | .85 | .53 | 1.1 | .23 | 1.5 | .89 | .55 | .86 | 1.7 | .29 | .35 | .23 | .64 | 4.1 | .84 | 1.2 |
| Recharge (in.) | .18 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .11 | .00 | .00 | .00 | .00 | .00 | 1.7 | .00 | ||
| Ratio (percent) | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 42 | 0 | ||
| September | Precipitation (in.) | .01 | .17 | 1.3 | 1.3 | 1.1 | 1.6 | 1.4 | 3.5 | 1.4 | .35 | 1.6 | .42 | .79 | 2.1 | 1.8 | .86 | 1.6 |
| Recharge (in.) | .00 | .00 | .00 | .01 | .00 | .01 | .00 | 1.70 | .00 | .00 | .09 | .00 | .00 | .44 | .34 | .00 | ||
| Ratio (percent) | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 48 | 0 | 0 | 6 | 0 | 0 | 22 | 19 | 0 | ||
| October | Precipitation (in.) | 3.4 | 1.0 | 1.3 | .79 | 2.9 | 4.0 | 4.7 | 3.9 | .99 | 2.5 | 2.0 | 3.9 | .72 | 2.7 | 2.9 | 2.8 | 2.6 |
| Recharge (in.) | 1.4 | .30 | .00 | .00 | 1.0 | 2.1 | 2.9 | 1.6 | .00 | .65 | .52 | 1.8 | .00 | .55 | 1.1 | .47 | ||
| Ratio (percent) | 41 | 29 | 0 | 0 | 35 | 54 | 62 | 40 | 0 | 26 | 27 | 45 | 0 | 20 | 39 | 17 | ||
| November | Precipitation (in.) | 3.1 | 3.7 | 3.5 | 1.3 | 5.0 | 4.3 | 8.2 | 2.4 | 6.6 | 4.4 | 2.4 | 5.0 | 3.3 | 3.9 | 3.4 | 2.9 | 4.0 |
| Recharge (in.) | 2.1 | 2.7 | 2.9 | .31 | 4.2 | 2.8 | 7.5 | 1.4 | 5.0 | 3.4 | 1.7 | 4.0 | 2.2 | 2.7 | 2.2 | 2.2 | ||
| Ratio (percent) | 69 | 74 | 83 | 23 | 85 | 65 | 91 | 59 | 75 | 77 | 73 | 80 | 65 | 68 | 65 | 75 | ||
| December | Precipitation (in.) | 2.4 | 3.1 | 4.6 | 4.4 | 4.7 | 4.6 | 8.8 | 2.1 | 7.4 | 5.7 | 2.1 | 5.1 | 6.1 | 3.6 | 2.1 | 3.9 | 4.4 |
| Recharge (in.) | 1.8 | 2.5 | 4.0 | 3.9 | 4.2 | 4.0 | 8.3 | 1.6 | 6.8 | 5.1 | 1.6 | 4.5 | 5.4 | 3.0 | 1.5 | 3.5 | ||
| Ratio (percent) | 75 | 80 | 87 | 90 | 89 | 87 | 94 | 78 | 91 | 90 | 78 | 88 | 88 | 83 | 74 | 90 | ||
| Annual | Precipitation (in.) | 35 | 24 | 28 | 27 | 28 | 37 | 47 | 35 | 40 | 33 | 29 | 29 | 27 | 30 | 29 | 29 | 31 |
| Recharge (in.) | 18 | 12 | 15 | 8.5 | 14 | 20 | 30 | 17 | 22 | 18 | 13 | 14 | 14 | 15 | 12 | 12 | ||
| Ratio (percent) | 53 | 50 | 55 | 32 | 51 | 54 | 64 | 48 | 57 | 55 | 45 | 48 | 54 | 50 | 41 | 43 | ||
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