Scientific Investigations Report 2007–5038
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5038
Table 11. Monthly precipitation and dual-coefficient FAO Penman-Monteith recharge using daily values, 1995–2005, Bayview Model Basin, 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.) | 5.4 | 1.0 | 1.3 | 1.9 | 1.8 | 3.4 | 3.8 | 3.6 | 2.4 | 2.8 | 1.0 | 0.10 | 1.6 | 5.1 | 3.3 | 2.4 | 2.8 |
| Recharge (in.) | 4. | .77 | .56 | 1.4 | 1.32 | 2.5 | 3.0 | 2.8 | 1.4 | 1.8 | .33 | .00 | .42 | 4.1 | 2.2 | 1.8 | ||
| Ratio (percent) | 80 | 75 | 43 | 78 | 72 | 74 | 80 | 77 | 59 | 64 | 33 | 0 | 27 | 81 | 69 | 76 | ||
| February | Precipitation (in.) | 2.5 | 1.0 | 1.8 | .67 | 1.5 | 2.7 | 4.3 | 2.1 | 1.7 | 3.6 | .20 | .06 | .59 | 1.0 | 2.4 | .22 | 2.1 |
| Recharge (in.) | 1.6 | .45 | 1.2 | .18 | .55 | 2.2 | 3.1 | .97 | .63 | 2.0 | .00 | .00 | .00 | .41 | 1.2 | .00 | ||
| Ratio (percent) | 64 | 43 | 69 | 26 | 36 | 79 | 73 | 47 | 37 | 57 | 0 | 0 | 0 | 40 | 47 | 0 | ||
| March | Precipitation (in.) | 1.0 | 3.1 | .47 | 1.6 | 1.7 | 3.0 | 2.3 | 4.3 | 2.5 | 1.5 | 2.2 | .28 | .77 | 3.1 | 1.1 | 2.9 | 2.0 |
| Recharge (in.) | .18 | 1.8 | .00 | .19 | .24 | 1.4 | .88 | 1.9 | .89 | .00 | .31 | .00 | .00 | .86 | .00 | 1.1 | ||
| Ratio (percent) | 18 | 57 | 0 | 12 | 14 | 47 | 39 | 43 | 35 | 0 | 14 | 0 | 0 | 28 | 0 | 38 | ||
| April | Precipitation (in.) | 2.3 | 2.8 | 1.7 | 4.3 | 1.6 | 2.0 | 3.2 | 2.8 | .27 | .86 | 2.1 | 2.4 | 1.7 | 1.9 | 1.4 | .80 | 1.8 |
| Recharge (in.) | 1.0 | .62 | .00 | .66 | .00 | .05 | .33 | .05 | .00 | .00 | .99 | .04 | .17 | .00 | .00 | .00 | ||
| Ratio (percent) | 44 | 22 | 0 | 15 | 0 | 3 | 10 | 2 | 0 | 0 | 47 | 2 | 10 | 0 | 0 | 0 | ||
| May | Precipitation (in.) | 2.3 | 4.4 | .9 | 1.7 | 2.0 | 1.7 | 3.6 | 2.2 | 2.4 | 1.6 | 4.0 | 1.5 | 2.0 | 2.0 | 3.4 | 1.8 | 2.1 |
| Recharge (in.) | .00 | .75 | .00 | .00 | .26 | .11 | 1.5 | .00 | .65 | .00 | 1.2 | .22 | .26 | .00 | .48 | .00 | ||
| Ratio (percent) | 0 | 17 | 0 | 0 | 13 | 6 | 43 | 0 | 27 | 0 | 30 | 14 | 13 | 0 | 14 | 0 | ||
| June | Precipitation (in.) | 2.3 | 2.2 | 2.3 | 1.6 | 1.9 | 3.3 | 2.4 | 2.2 | .5 | .7 | 1.1 | 1.8 | 1.8 | .8 | 1.1 | 2.9 | 1.8 |
| Recharge (in.) | .22 | .00 | 1.12 | .00 | .11 | .70 | .62 | .11 | .00 | .00 | .00 | .00 | .01 | .00 | .00 | .21 | ||
| Ratio (percent) | 9 | 0 | 48 | 0 | 6 | 21 | 26 | 5 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 7 | ||
| July | Precipitation (in.) | 1.6 | .25 | 3.3 | 5.3 | .16 | 1.2 | .19 | 1.2 | .57 | .83 | .65 | .42 | 1.2 | .02 | .06 | 1.4 | 1.0 |
| Recharge (in.) | .61 | .00 | 1.0 | 1.0 | .00 | .00 | .00 | .00 | .00 | .04 | .00 | .00 | .44 | .00 | .00 | .10 | ||
| Ratio (percent) | 39 | 0 | 31 | 19 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 37 | 0 | 0 | 7 | ||
| August | Precipitation (in.) | 1.9 | 1.0 | 3.0 | 1.3 | .03 | 1.5 | .64 | .28 | .50 | 1.5 | .03 | .00 | .90 | .27 | 3.3 | .51 | 1.1 |
| Recharge (in.) | .56 | .00 | 1.50 | .00 | .00 | .00 | .00 | .00 | .00 | .34 | .00 | .00 | .03 | .00 | .88 | .00 | ||
| Ratio (percent) | 30 | 0 | 49 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 3 | 0 | 27 | 0 | ||
| September | Precipitation (in.) | .00 | .05 | 2.6 | .99 | 1.1 | 1.6 | 1.1 | 2.5 | .34 | .29 | 1.2 | .45 | .92 | 1.3 | 2.6 | .97 | 1.2 |
| Recharge (in.) | .00 | .00 | .64 | .00 | .00 | .44 | .00 | .41 | .00 | .00 | .00 | .00 | .00 | .09 | .92 | .00 | ||
| Ratio (percent) | 0 | 0 | 24 | 0 | 0 | 28 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 8 | 35 | 0 | ||
| October | Precipitation (in.) | 3.7 | .05 | .85 | 1.7 | 3.9 | 3.8 | 3.5 | 3.1 | .00 | 2.3 | 3.5 | 3.5 | .39 | 1.6 | 2.5 | 2.8 | 2.1 |
| Recharge (in.) | 1.2 | .00 | .00 | .09 | 1.9 | 1.7 | 1.8 | .69 | .00 | .41 | 1.6 | 1.5 | .00 | .00 | .80 | 1.0 | ||
| Ratio (percent) | 33 | 0 | 0 | 6 | 50 | 45 | 52 | 22 | 0 | 18 | 47 | 41 | 0 | 0 | 32 | 36 | ||
| November | Precipitation (in.) | 3.5 | .47 | 5.4 | .76 | 2.6 | 4.1 | 4.6 | 1.5 | 3.8 | 3.4 | 1.0 | 2.9 | 3.1 | 4.2 | 2.9 | 2.2 | 2.9 |
| Recharge (in.) | 2.0 | .00 | 4.2 | .00 | 1.5 | 2.4 | 3.7 | .35 | 2.0 | 1.8 | .20 | 1.4 | 1.6 | 2.6 | 1.0 | 1.1 | ||
| Ratio (percent) | 59 | 0 | 77 | 0 | 57 | 58 | 80 | 23 | 52 | 55 | 20 | 47 | 52 | 61 | 35 | 51 | ||
| December | Precipitation (in.) | 2.9 | .69 | 3.7 | 2.0 | 3.5 | 3.4 | 5.1 | 1.8 | 4.1 | 3.4 | 1.3 | 3.2 | 3.6 | 2.9 | 1.8 | 3.3 | 3.2 |
| Recharge (in.) | 1.9 | .00 | 2.9 | .91 | 2.7 | 2.5 | 4.2 | .97 | 3.1 | 2.5 | .69 | 2.3 | 2.4 | 2.0 | .87 | 2.7 | ||
| Ratio (percent) | 67 | 0 | 77 | 46 | 78 | 76 | 84 | 54 | 74 | 74 | 53 | 72 | 67 | 68 | 49 | 82 | ||
| Annual | Precipitation (in.) | 29 | 17 | 27 | 24 | 22 | 32 | 35 | 28 | 19 | 23 | 18 | 17 | 19 | 24 | 26 | 22 | 24 |
| Recharge (in.) | 14 | 4.4 | 13 | 4.5 | 8.6 | 14 | 19 | 8.2 | 8.6 | 8.9 | 5.4 | 5.3 | 5.47 | 10 | 8.4 | 8.1 | ||
| Ratio (percent) | 47 | 26 | 48 | 19 | 39 | 44 | 56 | 30 | 45 | 40 | 29 | 32 | 29 | 42 | 33 | 36 | ||
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