Scientific Investigations Report 2007–5038

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5038

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Table 13. Monthly precipitation and dual-coefficient FAO Penman-Monteith recharge using daily values, 1995–2005, Newport, Washington.

[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.) 3.6 2.5 3.7 3.1 1.2 4.7 2.3 1.3 2.2 1.7 4.6 1.0 4.1 3.9 3.4 2.2 3.2
    Recharge (in.) 2.6 2.1 2.9 2.4 .67 3.9 2.0 .65 1.4 .82 3.7 .40 3.2 3.2 2.8 1.6
    Ratio (percent) 72 85 80 78 59 84 85 49 64 50 79 40 77 82 84 73
February Precipitation (in.) 3.1 2.6 1.8 1.0 1.1 2.5 2.3 1.4 1.6 3.9 2.6 1.7 1.9 .9 1.8 .00 2.4
    Recharge (in.) 2.3 1.5 1.1 .84 .45 2.0 1.6 .70 .80 2.5 1.4 .75 1.1 .47 .72 .00
    Ratio (percent) 75 57 65 85 40 80 67 51 52 63 52 45 57 53 41 0
March Precipitation (in.) 1.0 3.5 1.0 2.3 1.7 4.1 .6 2.8 3.5 .7 1.5 2.0 1.2 3.3 1.5 3.8 2.3
    Recharge (in.) .00 2.3 .00 .81 .46 2.2 .00 1.7 1.7 .00 .70 .18 .00 1.3 .25 2.1
    Ratio (percent) 0 67 0 36 27 53 0 60 49 0 46 9 0 40 16 56
April Precipitation (in.) 2.0 2.8 2.0 4.1 2.0 1.7 1.7 1.8 .52 .57 3.1 2.4 2.1 1.7 1.4 1.3 1.8
    Recharge (in.) .33 .79 .15 .29 .06 .23 .00 .26 .00 .00 1.0 .56 .39 .00 .00 .07
    Ratio (percent) 17 28 7 7 3 13 0 15 0 0 33 24 19 0 0 5
May Precipitation (in.) 4.5 3.3 .77 1.4 1.1 1.1 3.7 1.0 4.4 .88 2.5 1.6 1.8 2.8 3.2 3.2 2.1
    Recharge (in.) .84 .35 .00 .00 .00 .00 1.2 .00 2.4 .00 .00 .31 .10 .30 .72 .93
    Ratio (percent) 19 11 0 0 0 0 32 0 53 0 0 19 6 11 22 29
June Precipitation (in.) 2.5 2.3 1.2 1.1 1.4 3.1 2.1 2.0 3.4 1.9 2.0 1.2 1.1 .74 2.3 2.2 1.9
    Recharge (in.) .71 .00 .04 .00 .00 .59 .91 .00 1.3 .47 .15 .00 .00 .00 .04 .00
    Ratio (percent) 29 0 4 0 0 19 42 0 37 24 8 0 0 0 2 0
July Precipitation (in.) 1.3 .82 1.8 5.1 .10 .39 .24 2.1 2.8 .70 .13 .92 1.3 .00 .16 1.4 .9
    Recharge (in.) .17 .00 .00 1.29 .00 .00 .00 .72 .98 .00 .00 .00 .00 .00 .00 .10
    Ratio (percent) 12 0 0 25 0 0 0 34 35 0 0 0 0 0 0 7
August Precipitation (in.) 2.4 .45 .50 .83 .09 .76 .93 .41 .20 .37 .02 .19 .15 .88 3.2 1.5 1.0
    Recharge (in.) .44 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 1.3 .05
    Ratio (percent) 19 0 0 0 0 0 0 0 0 0 0 0 0 0 40 4
September Precipitation (in.) .00 .00 .82 .61 1.3 1.6 .68 2.2 1.2 .65 1.1 .24 .56 2.0 1.9 .47 1.4
    Recharge (in.) .00 .00 .00 .00 .00 .13 .00 .31 .00 .00 .00 .00 .00 .95 .80 .00
    Ratio (percent) 0 0 0 0 0 8 0 14 0 0 0 0 0 49 42 0
October Precipitation (in.) 3.0 1.0 1.4 .91 1.8 3.0 5.2 1.9 .84 1.6 4.1 3.5 .16 2.0 2.8 2.3 2.2
    Recharge (in.) 1.28 .20 .00 .00 .10 .95 3.64 .33 .00 .25 2.98 1.45 .00 .20 1.68 .18
    Ratio (percent) 42 20 0 0 6 32 70 17 0 16 73 42 0 10 60 8
November Precipitation (in.) 2.8 4.2 3.9 .67 4.8 3.6 3.1 2.1 3.9 2.4 .81 3.5 2.8 2.5 2.7 2.8 3.5
    Recharge (in.) 1.6 3.0 3.2 .00 4.0 2.1 2.2 1.2 2.7 1.1 .04 2.3 1.6 1.1 1.3 1.7
    Ratio (percent) 58 71 82 0 83 59 72 54 69 46 5 64 55 43 48 60
December Precipitation (in.) 3.1 2.0 3.1 2.8 3.3 4.0 5.4 5.8 .00 3.6 .72 6.1 4.8 3.7 1.5 3.2 3.7
    Recharge (in.) 2.4 1.2 2.4 2.0 2.7 3.4 4.7 5.0 .00 2.9 .28 5.3 4.0 3.0 1.0 2.8
    Ratio (percent) 77 61 78 72 82 84 88 87 92 81 40 88 83 82 62 87
Annual Precipitation (in.) 29 25 22 24 20 31 28 25 36 19 23 24 22 24 26 24 26
    Recharge (in.) 13 11 10 7.7 8.4 15 17 11 22 8.0 11 11 10 10 11 10
    Ratio (percent) 43 45 45 32 43 51 57 44 61 42 44 46 47 43 41 39

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