ROSS DAM, WA

Total of Precipitation (Inches)

(457185)

File last updated on April 20, 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
1960-----z-----z-----z-----z-----z-----z-----z-----z1.50 7.21 11.98 3.86 24.55h
196113.71 13.47 5.85 2.08 2.28 0.57 1.01 1.58 2.15 8.43 6.29 11.12 68.54
19626.46 1.49 3.37 4.88 2.57 1.25 0.34 2.89 3.05 2.82 15.27 10.56 54.95
19633.14 8.07 4.06 2.57 2.13 1.57 1.50 1.90 2.99 10.97 11.87 7.94 58.71
196413.15 3.26 6.84 3.79 2.28 1.30 1.17 2.22 3.94 4.69 7.62 6.97 57.23
196510.46 9.08 0.61 2.72 3.77 0.19 0.24 1.94 1.60 4.08 6.78 8.12 49.59
19668.50 2.90 4.73 2.56 2.19 2.04 2.15 0.78 1.03 9.60 6.39 11.98 54.85
196715.73 7.75 7.00 1.62 0.73 2.05 0.35 0.18 2.03 15.95 5.34 11.18 69.91
19689.64 8.26 6.55 3.44 0.71 4.92 0.94 2.06 3.02 5.27 9.80 8.42 63.03
19697.66 3.68 4.67 4.10 1.86 0.59 1.06 0.29 5.76 1.99 4.91 6.85 43.42
19709.79 3.14 2.96 5.96 0.58 0.30 0.83 0.15 4.26 3.93 6.72 9.00 47.62
197116.05 5.92 9.36 1.78 1.88 1.50 0.49 0.91 2.65 5.66 9.35 8.60 64.15
197213.67 13.45 9.02 3.91 2.59 2.56 2.96 1.40 6.43 0.86 4.33 14.45 75.63
19736.03 2.43 4.39 2.34 2.33 1.12 0.08 0.46 1.82 6.11 9.95 11.30 48.36
197417.98 10.19 7.66 2.78 2.39 1.93 1.46c0.18 0.76 0.98 10.80a12.40 69.51
19758.81 4.63a4.15 1.20 1.81 0.91 0.53 2.23 0.23 10.04a12.94a18.60 66.08
197611.44 6.90 5.12 1.88 1.88 0.81 0.82 2.43 0.94 2.37 4.17 5.37 44.13
19773.83 4.17 8.07 1.88 1.88 1.12 0.89 1.79 1.77 3.16 13.81 12.80 55.17
19784.32 2.24 5.12 1.20 1.99 1.05 1.46 2.00 5.05 2.62 7.38 6.38 40.81
19791.82 9.00 3.45 2.56 1.26 1.14 0.93 0.50 2.27 4.93 1.24 17.28 46.38
19804.60 5.71 5.11 2.66 3.65 1.22 0.76 1.04 5.21 0.69 15.78 15.85 62.28
19811.26 10.19 1.84 6.28b1.36b3.88 1.44 0.10 2.57 5.76 4.87 10.23 49.78
198212.99 10.31 3.26a2.68f0.67 1.23b2.95 1.80 2.13 5.29 5.66 8.86 55.15a
198314.36 4.36d5.78 1.43 0.47 2.30 4.54 1.97 2.22 3.32 12.63 4.00 57.38
198412.75 5.06 4.41 -----z5.32 1.32 0.05 1.64 2.24 6.71 10.33b3.49 53.32a
19850.60a3.46 2.14 5.13 0.83a2.17 0.75 0.32 2.45 11.61 7.94 1.26 38.66
19868.45 8.00a4.36 1.94 3.45 0.72 1.43 0.01 1.64 3.71 17.18 5.45 56.34
19876.67a3.64 5.85 2.81 5.10 1.38 1.90 0.42 1.26 0.23 4.73 9.93 43.92
19885.50 4.68 9.84 6.47 1.47 1.42 1.08 0.21 4.12 6.42 13.70 4.40 59.31
19899.41 1.23 5.32 5.01 2.01 0.56 0.72 1.48 0.21 4.99 14.01 5.85 50.80
199012.73 10.26 1.97 1.26 1.64 1.82 0.40 3.50 0.38 12.55 21.14 11.46 79.11
19919.11 10.36 4.50 7.11 1.62 1.12 0.55 2.32 0.42 1.87 12.57 8.78 60.33
199213.64 4.49 0.29 3.83 0.35 2.85 2.48 1.39 2.53 2.85 9.41 6.36 50.47
19935.93 -----z4.97 3.11 2.24 3.02 3.11 1.45 1.80 3.57 3.78 7.46 40.44a
19945.93 8.92 6.63 1.91 1.32 1.91 0.82 0.81 1.19 8.69 10.86 13.59 62.58
19954.48 9.95 3.75 1.03 0.74 1.08 1.43 1.99 0.97 8.54 28.41 7.70 70.07
19968.95 10.82 1.97 6.66 2.87 0.56 0.99 0.64 1.46 8.43 8.39 13.35 65.09
199714.80 5.53 12.53 4.06 2.15 4.01 3.28 1.19 5.07 10.15 5.13 7.91 75.81
199810.37 2.02a3.79 1.22 2.18 1.21 0.65 0.05 0.44 2.90 15.90 18.43 59.16
199910.71 10.21 3.56 0.27 2.31 0.83 1.14 1.71 1.99 8.03 14.26 13.13 68.15
20007.97 5.01 5.88 2.36 3.94 2.80 1.51 0.70 3.33 3.81 3.79 4.51 45.61
20014.83 2.37 3.98 2.90 3.44 1.81 0.33 1.28 0.76 9.12 9.29 11.84 51.95
200213.27 10.60 7.60 5.46 1.82 2.29 0.76 0.39 1.80 0.30 5.38 7.16 56.83
200312.55 2.86 11.97 3.05 1.07 0.28 0.17 0.42 1.60 19.71 15.54 6.21 75.43
20048.56 1.08 5.84 0.75 1.97 0.98 0.21 4.03 5.14 3.25 9.41 9.99 51.21
20059.35 1.37 4.84 3.21 1.37 1.49 1.44 0.69 3.22 5.92 6.31 7.24 46.45
200617.20 6.33 2.07 2.61 0.87 2.02 0.60 0.07 1.26 1.39 25.81 8.93 69.16
20079.73 4.74 11.24 2.71 1.51 1.49 1.23 0.70 1.44 6.41 6.62 13.85 61.67
20086.59 7.07 4.77 1.26 1.15 0.58 0.44 3.71 0.80 3.53 9.10 6.30 45.30
200912.46 1.52 5.42 3.12 3.82 0.32 0.00 1.20 2.84 9.27 13.93 4.24 58.14
20106.21 1.89 5.15 3.32 4.26 2.76 0.44 1.35 5.65 4.69 7.84 11.98c55.54
201112.26a7.02 8.87 5.63 2.35 1.31 0.93 0.21 2.72 7.54 12.80 6.18 67.82
201211.38 4.86 10.39 3.63 1.60 2.32 1.43 0.07 0.16 12.99 10.04 10.04 68.91
20137.07 3.75 5.89 4.86 2.20 2.15 0.07 3.26 9.00 2.46 6.72 4.01 51.44
20148.99 9.06 16.61 4.40 2.29 2.17 1.32 1.31 2.57 8.00 15.71 8.18 80.61
20158.10 6.06 8.07 1.80 0.74 0.96 1.06 2.89h2.60 5.49 16.24 13.23 64.35a
20168.32 8.74 7.64 1.05 1.10 1.15 0.90 0.28 2.90 14.09 9.68 7.98 63.83
20173.87 7.91 14.20 3.75 1.50 1.27 0.00 0.00 0.75 9.97 12.94 8.08 64.24
201813.45 7.98 3.02 5.62 0.40 1.57 0.75 0.25 2.72 5.44 9.67 12.53 63.40
20196.03 2.46 1.05 4.58 2.42 1.92 1.19 0.74 3.96 5.89 4.16 10.86 45.26
202017.46 10.31 4.48 1.58 3.03 1.90 0.49 0.36 3.97 7.26 12.35 9.69 72.88
20219.36 8.69 2.61 1.01 2.12 1.21 0.21 2.14 5.91 9.40 20.67 10.92 74.25
20229.39b3.53 6.62 5.23 4.31 2.73 1.13 0.02 0.59 4.80 6.33 8.22b52.90
20233.21 5.02 2.55 4.08 1.24 0.83 0.34 0.38 1.81 2.31 6.43 13.28 41.48
20248.49 5.18 3.30 1.21k-----z-----z-----z-----z-----z-----z-----z-----z16.97i
Period of Record Statistics
MEAN9.24 6.11 5.61 3.17 2.05 1.58 1.06 1.19 2.52 6.11 10.32 9.31 58.50
S.D.4.10 3.24 3.20 1.68 1.12 0.93 0.88 1.00 1.77 3.94 5.28 3.71 10.67
SKEW0.07 0.29 1.13 0.49 0.88 1.19 1.69 0.87 1.18 0.97 1.09 0.37 0.12
MAX17.98 13.47 16.61 7.11 5.32 4.92 4.54 4.03 9.00 19.71 28.41 18.60 80.61
MIN0.60 1.08 0.29 0.27 0.35 0.19 0.00 0.00 0.16 0.23 1.24 1.26 38.66
YRS64 63 64 61 63 63 63 62 64 64 64 64 59