CHELAN, WA

Total of Precipitation (Inches)

(451350)

File last updated on October 22, 2018
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
1891-----z-----z-----z-----z-----z-----z-----z0.09 0.23 0.32 -----z2.29 2.93h
18921.13 0.43 -----z1.32 3.13x0.31w0.47 0.00 0.26 0.59 -----z-----z4.20e
1893-----z1.55e1.69 2.25 1.40 0.21 0.06 0.00 0.78 0.24 2.25t0.75 8.93b
18941.08c0.80v1.19a0.34 1.37 1.20 0.00 0.06 0.05 1.37 0.89 2.63w7.55b
18952.40b0.30a0.27a0.74 0.65 0.00 0.00 -----z-----z0.00 0.54 2.25 7.15b
18962.50 0.18 0.70 1.33o1.80 0.09 0.01 0.67 0.64 1.00 3.00a1.78a12.37a
18971.98f2.80a0.81d0.54 1.30 1.25 0.88 0.15 0.11 0.74 2.93b3.37o11.51b
18980.30f1.59a0.08b0.00 0.91 1.54 0.00 1.03 0.22 -----z0.92 1.35 7.64b
18992.94 1.32 0.12 0.41 0.54 0.17 0.15 1.43 0.19 1.50 3.50 1.56 13.83
19001.15 0.85 1.02 0.82 0.89 0.65 0.00 0.14 0.84 2.07 1.20 2.63 12.26
19012.13 2.15 0.52 -----z1.76 1.48 0.00 0.02 1.21v0.08 2.42 1.84 12.40b
19021.01 3.30 0.45 1.75 0.69 0.00 1.74 0.15 0.23 0.08 1.77 2.43u11.17a
19031.81 0.78 0.88 0.61 0.18 0.38 0.27 1.48 0.43 0.55 3.21 0.35 10.93
19041.54 2.87 3.15 1.05 0.05 0.48 0.00 0.51 0.02 1.60 1.04s1.87 13.14a
19051.79b0.27 0.97 0.17 0.69 4.59 0.20 0.15 0.93 1.47 0.70 1.38 13.31
19061.24w1.95 1.02w0.05 1.79p0.24 0.11 0.10 0.20 0.18 3.88r3.22 6.05d
19071.02 0.81 0.80 0.08 0.49 1.96 0.96 0.56 1.84 0.12 1.24 2.78 12.66
19081.36 0.71 0.85 0.10 1.05 0.10 1.14 0.04 0.08 0.94 0.77 0.55 7.69
19092.10 1.51 0.57 0.00 0.43 0.31 0.74 0.00 0.99 0.90 3.64 1.61 12.80
19101.14 0.92 1.25 0.08 0.68 0.16 0.09 0.41 0.67 0.61 2.74 1.10 9.85
19110.70 0.92 0.48 0.29 1.21 0.49 0.00 0.60 0.64 0.18 0.86s1.83 7.34a
19123.01 0.86a0.37 0.87 1.14 0.64 0.15 1.04 0.24 1.87 1.49 1.39a13.07
19131.08 0.35 0.11 0.67 1.87 0.86 0.03 0.23 0.17 1.02 1.98 1.39a9.76
19143.80 1.01 0.16 0.80 0.13 1.49 0.08 0.00 1.39 1.84 1.36 0.73 12.79
19151.90 2.37 1.33 0.75 2.54 0.31 0.61 0.00 0.18 0.93 3.96 3.12 18.00
19161.20 3.30 1.69 0.12 0.42 1.67 0.93 0.22 0.98 0.03 0.74 0.77 12.07
19170.34 1.02 1.49 2.20 0.77 0.55 0.09 0.00 0.15 0.00 1.24 3.84 11.69
19180.98 1.11 -----z-----z-----z-----z-----z-----z-----z1.01 1.27 0.47 4.84g
1919-----z1.71 0.10 0.00 0.18 0.10 0.04 0.17 1.66 0.00 0.49 0.51 4.96a
19200.21 0.01 -----z-----z-----z0.00 1.42 0.73 1.36 1.55 1.28 1.18 7.74c
19211.93 0.45 0.79 0.54 -----z-----z-----z-----z0.13 0.35 -----z-----z4.19f
19220.25 0.08 1.17 -----z0.07 0.00 0.00 0.40 0.46 0.52 -----z-----z2.95c
1923-----z0.52 1.00 0.94 0.78 1.51 0.95 0.29 0.49 1.42 0.59 2.24c10.73a
19241.26 0.76 -----z0.00 0.00 0.19 0.08 0.00 0.73 0.96 1.76 1.11 6.85a
19251.23 1.50 0.32 0.67 0.39 0.78 0.02 0.07 0.04 0.15 1.18 0.67 7.02
19261.06 1.72 0.07 0.78 0.79 0.00 0.39 0.43 0.66 0.38v2.24 1.20 9.34a
19271.43a1.50 0.50 0.32 0.60 0.41 0.01 0.67 1.63 0.95 2.01 0.65 10.68
19281.43 0.08 0.53 0.86 0.08 0.70 0.46 0.22 0.06 0.31x0.69 1.32 6.43a
19290.53b0.01a0.47 0.30 1.60 0.73 0.00 0.00 0.24 0.06 -----z1.29 5.23a
19300.31 1.51 0.36 0.18 0.43 0.70 0.04 0.18 0.47 0.11 0.78 0.36 5.43
19312.05 0.29 0.79 0.00 0.03 1.04 0.00 0.00 0.66 0.62 0.60 3.35 9.43
19322.09 0.11 1.23 0.50 0.39 0.13 0.07 0.01 0.00 0.34 2.51 1.18 8.56
19331.49m0.38 1.38 0.03 1.45 0.47 0.00 0.26 1.17 1.12 0.84 4.45 11.55a
19341.43 0.37 0.61 0.30 0.25 0.06 0.06 0.07 1.30a3.08 2.26p1.54 9.07a
19351.10 0.98 0.91 -----z-----z0.21 -----z0.06 0.17 0.48 0.54 1.12w4.45d
19361.62 0.82q0.41 0.56 0.96 4.73t0.10 0.24 -----z0.03 0.02 0.61 4.55c
19371.17 0.90 1.93 1.86 0.12 3.66 0.34 0.18 0.98 0.22 3.22 1.77 16.35
19380.58 3.00a1.21v0.02 0.00 0.02 -----z0.04 0.21b0.66x0.65 1.33 5.85c
19390.72 0.95 0.61 0.45 1.26 0.32 0.01 0.51 -----z0.80 0.19 3.96 9.78a
19401.24 3.15 1.10 1.49 0.30 -----z0.59 0.00 0.91 1.50 1.34a2.48 14.10a
19411.11 -----z0.30 2.63 1.49 2.14 0.29 1.97 1.00 0.13 0.86 2.61 14.53a
19421.83 1.13 0.42 0.73 2.07 0.97 0.11 0.20 0.00 0.89 3.15b2.18 13.68
19430.54 0.99 0.80 0.40w0.84 1.22 0.10 0.08 0.00 2.10 0.59 0.45 7.71a
19441.05 1.23 0.13 1.69 0.35 1.99 0.00 0.17 0.54 0.24 2.91 0.27 10.57
19451.44 2.43 0.16 0.36 1.34 0.72 0.00 0.00 0.32 0.56 1.81 2.17 11.31
19461.46 1.47 0.50 0.00 0.36 1.15 0.03 0.00 0.64 1.00 1.68 0.27 8.56
19472.00 0.71 0.49y0.54 0.02 1.07 0.38 0.00 0.30 2.16 0.48a0.53a8.19a
1948-----z-----z-----z-----z-----z2.71 0.64 0.70 1.68 0.50 2.71 1.99 10.93e
19490.19 1.01 1.26a0.01 0.25 0.28 0.04 0.07 0.32 0.95 1.69 0.63 6.70
19501.72 1.28 1.81 0.74 0.79 2.07 0.05 0.00 0.03 2.36 2.05 1.74 14.64
19511.75 0.90 0.82 0.35 0.99 1.02 0.49 1.47 0.18 1.85 1.79 1.95 13.56
19521.93 0.76 0.04 0.13 0.53 0.80 0.84 0.00 1.34 0.04 0.27 1.52 8.20
19532.35 0.51 0.32 1.37 2.33 1.68 0.00 1.31 0.00 0.18 1.58 0.88 12.51
19541.56 0.29 0.72 0.06 0.21 0.46 0.31 0.53 1.31 0.29 1.70 0.29 7.73
19550.73 0.37 1.11 1.01 0.43 0.37 1.05 0.00 0.62 1.24 2.09 2.97 11.99
19562.43 0.86 0.50 0.31 0.47 1.36 0.11 0.65 0.23 1.75 0.86 0.79 10.32
19570.69 0.99 3.15 0.95 1.70 0.16 0.04 0.43 0.20 1.90 0.45 1.68 12.34
19581.89 2.56 1.58 1.45 0.27 1.15 1.04 0.16 0.08 0.73 3.17 1.48 15.56
19592.29 1.02 0.82 0.21 0.73 0.23 0.00a0.00 2.46 1.26 0.78 0.52 10.32
19600.48 1.49 0.42 1.63 1.26 0.00 0.05 0.17 0.11 0.39 1.80 1.03 8.83
19610.58 1.98 1.82 0.40 0.74 0.56 0.12 0.08 0.05 0.40 1.07 1.41 9.21
19620.26 1.31j0.91 1.14 1.39 0.22 0.14 0.57 0.20 2.13 1.55 0.83 9.34a
19630.02 1.31 1.07 2.20 0.28 0.28 0.36 0.66 0.03 0.07 1.47 1.15 8.90
19641.20 0.32 0.39 0.70 0.33 1.16 0.05 0.48 0.04 0.23 1.79 2.16 8.85
19651.10 0.29 0.19 0.88 0.15 0.28 0.51 1.06 0.09 0.04 2.05 1.43 8.07
19661.57 0.06 1.45 0.00 0.11 1.05 1.01 0.10 0.93 0.48 1.98 1.84 10.58
19671.27 0.01 0.72 2.37 0.95 1.13 0.05 0.00 0.01 1.96 0.45 0.98 9.90
19682.23 1.14 0.21 0.51 0.22 0.03 0.00 2.00 0.06 0.96 1.36 2.74 11.46
19691.65 2.13 0.05 1.46 0.07 0.43 0.00 0.00 0.93 0.36 0.09 3.82 10.99
19702.45 0.47 0.70 0.35 0.00 0.09 0.00 0.37 0.08 0.69 2.00 2.14 9.34
19711.65 0.31 1.66 0.69 0.14 0.98 0.08 0.02 0.78 0.20 1.42 2.79 10.72
19721.37 1.59 1.75 0.60 1.50 2.38 0.13 1.27 0.36 0.19 1.99 1.50 14.63
19730.91 0.22 0.20 0.00 0.22 0.21 0.02 0.00 2.00 0.93 3.36 3.83 11.90
19742.89 1.51 1.18 0.80 0.48 0.16 1.18 0.00 0.00 0.11 1.00 1.92 11.23
19751.45 1.14 0.96 1.91 0.33 0.19 0.52 2.39 0.00 1.68 0.67 1.32 12.56
19760.70 1.19 0.13 0.75 0.38 0.07 0.17 1.43 0.01 0.16 0.17 0.48 5.64
19770.10 0.64 0.98 0.00 0.57 0.57 0.00 0.25 1.09 0.23 2.19 2.88 9.50
19782.10 1.52 1.21 1.48 0.31 0.15 0.61 0.52 1.25 0.00 0.52 0.37 10.04
19790.47 1.46 0.22 0.46 0.10 0.32 0.12 0.35 0.37 1.42 1.57 1.94 8.80
19801.70 2.16 0.36 1.05 1.35 0.47 0.00 0.16 0.82 0.08 1.61 2.58 12.34
19811.83 2.63 0.14 0.03 1.59 0.76 0.59 0.07 0.65 1.30 1.84 2.20 13.63
19820.99 1.25 1.59 0.57 0.89 0.86 0.23 0.15 0.62 1.10 1.55 2.19 11.99
19832.84 2.46 3.28 1.15 0.35 0.43 0.92 1.77 0.44 0.11 6.20 1.18 21.13
19840.15 0.72 1.33 0.90 1.07 3.17 -----z0.22 0.62 0.53 1.85e0.31 10.87a
19850.39 0.44 -----z0.02 0.26 0.58 0.02 0.00 0.41 0.31 0.30c0.93a3.66a
19862.91 1.26 0.76 0.39 0.09 0.10 0.08 0.05 2.39 0.22 0.84 0.43 9.52
19871.27 1.03a1.16 0.21 0.90 0.54 0.23 0.04 0.00 0.01 0.39 4.42 10.20
19880.57 0.05 0.20 0.76 0.78 0.99 0.00 0.12 0.27 0.06 2.59 1.66a8.05
19890.80 1.37 1.08 0.78 1.58 0.11 0.06 0.20 0.00 1.16 0.72 0.21 8.07
19902.74a0.48 0.54 0.42 1.80a0.89 0.32 1.21 0.00 1.02 0.80 0.59a10.81
19910.28 0.30 0.86 1.36 2.51 0.78 0.13 0.52 0.00 0.16 2.08 0.76 9.74
19921.05 0.99 0.19 0.67 0.04 2.73 1.43 0.04 0.24 0.54 1.35 1.01a10.28
19930.63 0.42 0.30 1.33 0.14 0.97 1.38 0.11 0.05 0.04 0.12 2.62a8.11
19941.47 0.86 0.29a1.54 0.43 0.94 0.00 0.45 0.00 1.17 2.37 1.53 11.05
19953.98 0.79 2.77 0.61 0.69 0.60 0.58 0.06 0.25 0.57 2.37 2.40a15.67
19961.42 2.17 0.35 0.94 0.74 0.65 0.14 0.00 0.52 0.70 1.09d4.65a13.37
19972.08 0.94 1.94 0.52 0.86 2.22 0.64 0.29 0.60 1.96 1.16 0.39a13.60
19983.00 2.61a1.39 0.93 2.86 1.04 1.56 0.11 0.10 0.42 2.59 3.18a19.79
19992.24 2.49a1.04 0.00 0.85 0.09d0.05 1.28 0.07 0.61 1.76 1.05 11.53
20002.60c1.86 1.28 0.00 0.65 0.38 0.19 0.00 0.02 0.71 1.67 0.77 10.13
20010.58a0.53b0.67 0.43 0.14 1.99 0.00 0.31 0.14 0.59 2.08b3.28a10.74
20021.81a0.41a0.30a0.33 0.11 0.22 0.18 0.00 0.06 0.09 1.04 3.51 8.06
20033.69a0.78 0.72 1.20 0.25 0.05 0.00 0.00 0.14 1.18 0.49 1.93a10.43
20041.50 1.89a0.53 0.17b1.26 0.19 0.38 0.57 0.20 1.07 0.36 1.66 9.78
20051.44 0.06 0.68 0.37 3.62 0.75 0.24 0.08 0.00a1.39 2.45b1.74c12.82
20062.13d1.33b0.32 1.03 1.07 1.41 0.13 0.00 0.72 0.34 3.82 4.17 16.47
20070.44a2.58 0.11 0.11 1.13 0.21 0.25 0.50 0.00 2.88 0.69 3.11a12.01
20081.77 0.72 0.63 0.22a0.33 0.22 0.00 0.56a0.00 0.51 1.41b0.60g6.37a
20090.89 0.69 0.87 0.35b0.76 0.35 0.42 0.07 0.38d1.45 0.73 0.88 7.84
20102.40 2.38 0.49 1.47 2.06 1.95 0.38 0.95a1.26 1.04 1.39h2.33b16.71a
20110.98d0.33e2.91g0.16 2.93 1.03 0.48 0.00 0.09 1.06 0.45 0.91 8.42a
20120.89a1.61a1.83i1.17h0.26 0.57o2.25 0.02a0.00 1.43a1.47d3.54f7.93d
20130.59d0.13 1.27 1.07 1.02 0.47 0.12 1.19c1.77h0.52a0.65l0.00n6.38c
20140.00l1.85 1.05 0.39 0.21 1.33 0.33 1.73 0.44 1.69 1.74 2.28b13.04a
20150.79 0.94 0.90 0.38 0.85 0.33 0.00 0.07c0.01 0.86 1.38 4.30 10.81
20162.60 0.55 3.16 0.41 0.95 1.13 0.68a0.04 0.05 2.96 0.96 0.98 14.47
20171.29 2.40 1.86 2.14 1.31 0.19 0.00 0.02 0.25 1.70 1.89 1.12 14.17
20181.91 0.31a2.54 1.85 1.04 0.43a0.00b0.20 0.00a0.21k-----z-----z8.28c
Period of Record Statistics
MEAN1.46 1.14 0.89 0.70 0.81 0.79 0.31 0.37 0.47 0.83 1.55 1.72 11.24
S.D.0.83 0.82 0.70 0.62 0.70 0.80 0.43 0.51 0.53 0.71 1.01 1.08 2.87
SKEW0.61 0.76 1.45 1.03 1.35 1.91 1.91 1.84 1.54 0.94 1.22 0.80 0.82
MAX3.98 3.30 3.28 2.63 3.62 4.59 2.25 2.39 2.46 3.08 6.20 4.65 21.13
MIN0.02 0.01 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.21 5.43
YRS118 122 116 118 120 121 122 125 122 123 115 117 84