N WILLAMETTE EXP STN, OR

Total of Precipitation (Inches)

(356151)

File last updated on April 19, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
19631.14a4.02 6.48 -----z4.34 1.62 0.81 0.36 1.11 3.09 5.86 4.45 33.28a
196411.36 0.83 2.93 1.21 0.94 1.67 0.74 0.58 1.49 1.52 7.21 13.84 44.32
19658.51 2.07 1.09 3.23 1.30 0.66 0.23 0.99 0.05 2.79 6.63 6.78 34.33
19667.84 1.92 5.96 1.22 0.93 1.18 1.16 0.31 1.41 2.97 5.62 6.57 37.09
19676.77 1.53 4.79 2.58 2.12 0.72 0.00 0.00 0.26 5.58 2.04 5.65 32.04
19684.68 8.20 3.06 2.04 2.99 2.34 0.98 4.17 2.75a6.88 7.02 12.46b57.57
19697.41 3.03 1.45 2.99 1.76 3.20a0.11 0.08 3.42 4.69 2.94 8.53 39.61
197011.72 5.12 2.30b2.36 1.30 0.31 0.07 0.00 1.38 3.49 6.94 8.92 43.91
19717.59 3.49 5.59 3.71 1.77 2.92 0.08 0.43 3.51 3.69 6.49 8.02a47.29
19726.59 4.78 5.77 3.61 2.65 0.60 0.47 0.65 3.50 0.87 5.07 8.81 43.37
19734.45 1.96 2.67b1.28 1.56 1.47 0.01 0.82 2.58 2.94 13.04 10.02 42.80
19748.24 5.48 6.28 2.23 1.98 0.96 2.31 0.02 0.26 1.62 6.56 6.53 42.47
19756.84 4.24 2.22 2.46 1.86 1.27 0.65 2.53 0.00 5.61 4.37 6.66 38.71
19766.32 6.68 2.82 3.00 1.48 0.57 0.95 2.41 1.18 0.85 1.67 1.48 29.41
19771.37 2.80 4.26 0.64 3.82 1.54 0.83 2.69 3.23 2.45 6.61 10.52 40.76
19785.35 3.59 1.69 3.50 4.52 1.69 0.90 2.08 2.74 0.37 4.92 3.54 34.89
19793.45 7.36 3.22 3.35 2.36 0.47 0.82 0.82 3.25 5.35 3.77 6.75 40.97
19809.99 4.68 3.59 4.07 1.23 2.52 0.14 0.49 1.69 1.67 6.87 11.90 48.84
19812.01 4.11 3.48 2.29 2.23 4.27 0.19 0.03 2.68 4.14 5.39 10.27 41.09
19826.24 6.94 3.12 8.98 0.89a0.86 0.34 0.99 3.61 3.74 5.04 8.92 49.67
19837.18 9.54 7.18 2.67 2.13 2.60 2.68 2.52 0.86 2.25 9.04 6.33 54.98
19843.05 4.69 4.46 4.09 4.59 5.35 0.00 0.03 1.99 5.78 12.90 3.68 50.61
19850.45 3.49 4.54 1.42 0.97 2.48 0.45 0.79 1.93 3.17 5.00 2.46 27.15
19866.26 7.65 2.95 2.09 2.74 0.38 1.28 0.04 2.93 2.81 6.71 4.13 39.97
19876.75 4.94 5.55 2.19 1.66 0.30 2.00 0.10 0.53 0.23 2.40 10.55 37.20
19887.88 1.71 3.73 4.63 2.56 2.94 0.21 0.03 1.25 0.20 9.88 3.28 38.30
19894.24 3.16 7.02 1.24 2.27 0.91 0.52 1.37 1.34 2.15 3.72 4.15 32.09
19908.98 4.97 3.42 2.22 1.71 2.94 0.54 1.09 0.50 6.18 5.00 3.39 40.94
19912.83 3.69 4.39 4.62 4.58 2.42 0.16 0.75 0.30 3.70 7.31 5.53 40.28
19925.34 5.23 1.46 4.28 0.19 0.63 1.31 0.48 1.88 4.83 5.15 6.71 37.49
19932.96b0.26e5.32 6.30 4.25 2.20 2.44 0.30 0.00 1.35 1.39 6.90 33.67
19944.78 6.93 3.58 1.88 1.63 1.57 0.06 0.02 1.12 6.94 8.32 7.70 44.53
19957.65 4.45b4.42 5.14 1.84 2.07 0.60a1.55 1.52 5.63 10.18 7.66 52.71
19969.09 12.04 3.91 6.76 4.63 1.05 0.80 0.14 3.06 5.51 11.39 15.72 74.10
19979.55 3.34 8.59 4.59 2.47 2.97 0.80 1.11 3.38 6.25 4.65 3.41 51.11
19988.98 5.73 4.91 1.42 5.57 1.27 0.22 0.25 0.90 4.69 10.96 0.54 45.44
19997.58 9.08 4.68 1.35 2.53 1.23 0.18 0.47 0.05 2.47 7.68 4.35 41.65
20006.21 5.15 3.46 2.15 2.39 1.40 0.01 0.00 -----z3.21 3.04 3.16 30.18a
20011.55 1.28 3.51 0.69 1.05 1.67 0.73 1.19 0.69 3.80 -----z-----z16.16b
2002-----z-----z5.59 2.44 1.35 1.83 0.07 0.24 1.95 -----z3.22 10.02 26.71c
20038.73 2.99 7.14 5.64 1.05 0.28 0.00 0.42 0.95 2.45 4.31 9.84 43.80
20046.19 4.04 1.09 1.07 1.92 1.63 0.12 2.52 1.74 4.34 2.71 4.46 31.83
20051.87 0.58 5.00 2.97 5.02 2.75 0.58 0.00 2.14 2.63a6.22 10.53 40.29
200613.70 2.77 4.30 2.77 2.79 0.99 0.07 0.11 0.84 1.68 13.05 7.43 50.50
20074.75 5.26 5.29 2.26 0.90 0.53 0.63 0.66 -----z-----z-----z-----z20.28d
Period of Record Statistics
MEAN6.24 4.45 4.18 2.99 2.33 1.67 0.63 0.81 1.67 3.41 6.24 7.04 42.44
S.D.3.00 2.49 1.73 1.73 1.31 1.10 0.66 0.95 1.13 1.84 3.03 3.37 8.65
SKEW0.06 0.76 0.26 1.27 0.86 1.08 1.56 1.59 0.23 0.14 0.67 0.36 1.18
MAX13.70 12.04 8.59 8.98 5.57 5.35 2.68 4.17 3.61 6.94 13.05 15.72 74.10
MIN0.45 0.26 1.09 0.64 0.19 0.28 0.00 0.00 0.00 0.20 1.39 0.54 27.15
YRS44 44 45 44 45 45 45 45 43 43 43 43 40