CHELAN, WA

Average of Minimum Temperature (Degrees Fahrenheit)

(451350)

File last updated on December 4, 2021
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-----z62.32 61.74 51.03 44.52 -----z24.83a48.89g
189215.71 -----z36.52 39.20 48.48 58.47 58.94 61.00 51.90 41.68 -----z-----z45.77c
189313.87 14.22a26.81 37.43 46.77a49.53 63.17a62.71 48.40 37.26 29.64b26.29 38.01
189418.55 18.96 31.16 39.73 50.00 54.67 63.65 65.77 48.77 37.97 34.03 21.90a40.43
189518.17a25.18 32.48 39.57 44.65 53.63 58.39 59.74 44.97 38.61 27.90 26.03 39.11
189621.45 27.14a28.74 37.27 42.97 54.77 63.19 58.71 49.30 40.48 21.48a29.37a39.57
189722.23 22.82 24.19 41.30 49.45 52.73 56.55 61.06 49.40 40.16 27.87 19.90 38.97
189816.16 27.93 31.13 44.37 50.13 51.50 61.81 63.06 49.93 -----z29.90 17.71 40.33a
189919.23 20.50 32.42 37.87 44.61 50.53 59.94 54.61 53.33 41.26 39.80 26.55 40.05
190028.03 24.86 36.68 43.73 49.74 57.17 59.90 56.23 51.17 43.00 28.13 34.35 42.75
190122.13a23.96 32.67a-----z47.07a50.47 58.19 62.45 49.47 46.29 35.32b28.13 41.47a
190223.00 27.96 32.58 39.54b49.27a51.30 56.29c59.45 47.70 43.14b30.86a21.29 40.20
190321.61 16.63a29.65 38.60 47.16 56.45a57.13 57.16 49.03 38.48 31.07a15.32 38.19
190420.74 21.93 27.68 40.37 47.16 54.43 62.87 62.45 53.57 36.30a32.20 27.23a40.58
190523.86b19.89 34.13 41.17 46.52 54.07 61.58 58.71 53.13 37.00 30.66a25.32 40.50
190623.45 29.56a30.61 41.97 48.55 50.03 65.61 60.29 51.93 43.37a33.37 27.03 42.15
19079.23 24.43 30.33a37.90a49.52 52.70 57.94 56.57a50.63 45.35 34.48a27.69b39.73
190824.26 22.79 32.35 39.40 45.42 53.50 60.87 59.71 50.57 41.87 35.70 24.35 40.90
19099.65 24.18 31.45 37.93 45.94 52.80 56.48 56.23 53.03 41.90 33.33 19.00 38.49
191019.58 17.75 35.39 40.97 48.19d51.40 57.52 55.74 50.47 43.13 31.80 28.00 39.99
191116.65 19.54 32.13 38.03 44.68 54.17 58.74 56.74 48.69a39.81 26.59a22.43a38.18
191218.29 26.97 29.32 40.73 47.71 54.50 57.90 55.97 47.43 38.71 34.50 27.00 39.92
191316.58 17.00 29.26 38.37 45.90 53.33 56.39 58.94 48.67 37.16 33.50 27.97 38.59
191425.03 23.07 33.10 40.77 47.55 51.87 60.10 59.42 48.53 42.94 34.17 18.90 40.45
191519.00 28.14 34.74 42.90 46.13 53.24a58.65 62.48 49.47 42.13 28.57 20.80a40.52
19167.52 21.62 30.13 38.53 43.81 50.77 53.87 58.29 50.47 38.74 25.90 17.19 36.40
191714.68 20.71 24.55 35.50 45.94 49.53 58.29 59.00 51.67 42.55 36.23 24.42 38.59
191825.03 21.64 -----z-----z-----z-----z-----z-----z-----z42.14b31.41a27.25c29.50g
191926.75s21.14 28.90 38.34a43.33a50.07b57.30d58.27e48.45a36.33a28.17a17.21g41.03b
192020.87 26.72 -----z-----z-----z52.81i62.38b59.28b49.50f38.96d32.12e27.57c38.27e
192120.72b24.43 32.17a36.96d47.67j-----z-----z-----z46.26c40.76j28.55a19.48f31.52f
192212.19 12.46 27.10 35.48g42.92f56.97 62.56d59.07b51.84e41.35h-----z-----z40.31e
1923-----z17.48a30.67a41.87g48.48 54.97 62.65 62.61 55.50 42.97a34.50d24.14b43.40b
192417.61 30.11b33.03 38.43b52.18c56.30 62.63a62.50c53.69a43.00 30.86b19.48b41.65
192521.93b32.18 35.00a42.70 50.48b57.30 64.67a60.48b52.80 40.20a31.03a32.87 43.47
192625.50a32.00 36.97 44.33 48.93a60.43 64.97a61.41b47.27 42.87a35.12d22.87 43.56
192720.74 26.59a32.00a38.97a46.60a58.45a63.45 62.13 52.03a42.45 31.97 19.00a41.20
192824.97 27.93 34.68 38.23 50.23 56.59a64.07a60.77 51.70 40.93a33.83 23.87 42.32
192912.23a13.64c33.55b37.83 48.23 55.40 61.13a62.23a51.13 42.10 28.20 25.94 39.30
19307.87 26.96 33.74 44.13 48.28b54.00 62.58 62.03a53.87 39.90 30.55a25.94 40.82
193127.84 26.48c34.32 41.10 50.59b55.59a63.13 61.20a51.50b42.04c29.00 21.83a42.05
193217.94 21.90 33.35 43.38f48.23a57.79b58.61c59.84 51.07a42.20a35.55a20.41d40.63a
193323.87 17.61 33.90a39.93 44.84 53.83 60.13 60.19 48.93a42.58 35.03a29.52 40.86
193428.36c30.62b36.55 45.60 49.20a57.25b59.75c60.96d48.25b44.29 36.29b27.23a43.70
193521.40a27.52a30.33a36.59a46.97 53.12e58.90 55.44d51.47 38.77a27.93a26.95k40.77a
193624.10a7.85b30.42 41.23 51.04c54.52a59.37a59.90b48.62d39.20a25.90a26.17a39.02
19376.20a17.43 33.03 37.40 45.84 52.03 61.80a56.32 52.10 43.94 32.60 26.39 38.76
193824.03 25.36 31.68 39.59a47.48 54.60 62.13 55.13a52.93 41.24b29.52a24.43a40.68
193926.97 21.04 32.26 40.43 48.06 53.70 60.37a59.27a51.37 41.19 33.53 32.19 41.70
194026.26d28.97 35.79b42.27 49.40a57.33 61.34b59.42 55.70 42.52d27.17 27.72b42.82
194124.35 29.74a36.80a44.17 48.90 52.83 62.84 59.55 48.97 43.35 36.27 28.52 43.02
194222.60a28.00 32.94 42.07 46.94 53.07b61.16 60.82c52.68b41.19 30.93 25.43a41.49
194315.19d27.26a31.52 43.33 45.71 52.23 59.89d57.87a53.43 43.35e35.53 27.23 41.04
194422.81 27.38 31.73a42.27 49.00 56.23 61.87 57.84 51.41a42.90 33.03 23.00 41.62
194525.90a28.96 33.04d37.57 45.94 54.17a61.53a59.27a48.64b41.59b28.40e25.48b40.87
194621.14b22.35b32.24b38.93c49.35 53.03a59.33a58.21b50.07 36.61c25.17a23.97b39.20
194717.33d23.68 34.40a40.72a50.42 54.57 59.06 55.65 50.69a42.30a31.76a27.07d40.64
1948-----z-----z-----z-----z-----z56.20 56.13 54.77 47.90 36.55 30.20 15.17a42.42e
19494.33a13.23b31.00a37.87 48.81 52.17 57.52 56.87 49.40 36.48 34.83 21.68 37.02
19500.97 19.93 28.52 34.70 43.19 52.10 58.55 57.52 49.27 38.74 29.73 27.81 36.75
195120.39 21.75 25.68 35.33 45.00 51.67 57.84 58.55 48.17 39.40a28.50 16.35 37.39
195214.19 22.03 29.39 37.20 46.45 54.20 59.26 58.61 51.87 42.97 29.23 28.39 39.48
195330.17a30.46 34.00 38.60 45.94 52.00 58.87 57.10a49.93 42.23 35.07 29.90 42.02
195419.40a30.11a29.10 35.63 47.19 51.83 56.87 57.32 51.23 38.94 37.93 26.71 40.19
195524.24b22.50 25.74 35.63 44.90a54.50 58.55 57.74 49.93 40.19 23.50 19.26 38.06
195623.42 14.55 28.39 39.53 49.52 52.43 61.13 59.37a50.53 41.35 29.80 25.23a39.60
195710.94 20.07 30.87 40.37 52.71 56.00 58.42 55.87 50.23 39.45 30.70 30.17a39.65
195828.20a34.70a32.84 38.87 54.00 60.60 63.52 63.71 51.00 41.45 28.33 27.66b43.74
195921.43a23.86 32.41b39.62a45.10 54.63 60.27a57.53a49.83 40.61 27.31a28.39 40.08
196020.61c27.00a30.43a39.07 46.06 54.20 63.87 58.42 48.60 41.23a30.80 23.63a40.33
196126.47a32.11a34.00c39.83a46.77 57.27 61.68 61.55 47.93 38.71 26.08d23.32 41.31
196219.48b31.78j29.03a40.33 45.97 53.90 59.32 57.35 49.48a41.42 34.24a30.26 41.89a
196318.57c30.39 33.61 38.93 46.03 56.37 59.19 58.32 53.20 42.77 34.20 25.58 41.43
196424.68 22.76 31.32 38.20 46.81 55.27 58.77 56.13 46.55a38.45 32.67 20.55 39.35
196524.23a25.89 27.94 41.53 47.19 53.97 59.90 60.39 47.63 39.87 35.50 26.60a40.89
196621.06 27.79 31.30a39.17 48.74 52.87 58.10 58.71 53.57 39.65 34.57 30.84 41.36
196728.77a30.32 32.97 36.27 46.43a57.10 61.87 61.35 53.83 41.71 33.34a23.61 42.30
196822.74 27.31 34.48 37.37 46.53a54.67 61.03a56.94 51.00 37.71 33.00 20.93a40.31
196910.61 19.32 29.45 41.00 50.00 58.07 59.10 57.74 51.20 37.65 32.40 28.55 39.59
197021.23 27.75 31.84 37.23 47.61 58.10 63.23 57.55 47.37 37.00 29.80 21.32 40.00
197121.32 26.93a28.58 38.10 49.42 52.93 59.48 62.37a47.07 38.94 32.93 18.32 39.70
197216.45 23.97 33.90 36.87 48.03 54.40 55.68 59.26 46.30 36.19 35.23 21.68 39.00
197320.06 26.36 32.65 40.63 47.13 54.60 60.19 60.35 51.17 40.87 29.13 29.48 41.05
197419.90 29.75 31.00 39.30 44.77 54.93 57.23 59.29 49.33 38.23 34.87 28.71 40.61
197520.29 20.00 29.03 36.97 45.65 53.62a62.61 56.81 48.27 40.48 30.17 26.32 39.18
197624.48 26.55 29.00 38.23 44.84 49.70 58.32 56.39 51.13 38.58 31.20 27.00 39.62
197719.65 29.00 32.39 39.30 45.71 57.20 58.68 61.29 48.20 37.10 29.10 24.74 40.20
197824.94 29.04 33.71 39.87 46.10 55.23 60.16 56.87 49.77 37.42 27.53 18.39 39.92
197911.61 21.85a31.84 37.57 49.58 57.33 61.60a60.74 51.63 41.55 29.10 27.13 40.13
198012.68 24.66 30.35 39.87 47.55 51.67 57.42 54.32 48.47 37.35 32.90 26.55 38.65
198131.61 27.18 33.58 37.70 47.00 50.27 56.03 59.57a49.10 37.10 32.67 24.32 40.51
198219.17a23.96a30.97 34.70 45.07a56.97 57.45 56.90 49.63 38.77 26.90 23.06 38.63
198327.53a30.39 35.71 37.83 43.81 44.67 46.33a51.53a38.30 36.93d35.41a15.48 36.99
198423.30a28.55 34.32 37.17a44.42 51.17a59.50a59.47a47.31a35.57a29.72a15.79b38.86
198520.87 17.15a-----z39.83 47.39c51.13 59.93c57.33d47.04c38.00d15.96e17.10 37.43a
198623.21b24.04a34.37d39.37 47.21b59.80 60.10 64.17b50.87 42.06 33.34a27.82c42.20
198724.16 31.29 36.26 43.80 50.32 57.90 60.69b59.47a54.23 40.97 36.23 24.17a43.29
198821.10 26.45 34.77a42.67 48.29 55.48a61.93b60.17b50.69a45.07a34.43 26.10 42.26
198924.58 19.00 30.61 41.83a47.90a58.90 60.39 59.73a51.50 41.00b35.59a29.71 41.73
199029.60a23.11a34.03 44.59a47.74 54.81c63.62b62.10b54.20 39.55b34.33c18.24b42.16
199119.31b32.63a31.23 39.93 48.23 52.69a61.74 61.83b52.89b38.58 32.87 30.80a41.89
199228.84 33.79 36.19 42.57 50.80a61.76a60.30a60.10 50.53 42.71 33.87 19.58 43.42
199317.13a23.56a29.37a38.70 52.77a55.77 57.39 58.83b50.69a42.60a24.48a28.10 39.95
199428.55b25.22a34.07a44.07 50.19 55.10 65.42 60.10 53.76a41.94 28.07 26.19 42.72
199525.32 29.21 32.40a40.47 51.23 56.13 63.19 56.58 52.97a40.29 32.69a26.47a42.25
199620.82c23.62 32.31b41.03a45.42 52.87 61.43a59.39 50.10 40.90a30.60e13.43q41.68a
199720.85d24.11a32.06 39.13 48.63a54.34a59.61 61.87 53.41a41.23 34.60 27.81 41.47
199824.77 32.71 35.71 40.23 50.86b56.38a65.52 61.57a55.66a41.68 37.17 24.13 43.87
199928.13a30.00 32.77 37.70 46.23 52.92q57.29 62.10a50.17 40.61 37.86a31.19 41.28a
200024.00 27.14a34.71 41.90 49.27a55.83 60.13a60.29 49.74c40.52 29.10a23.71 41.36
200127.20a24.30a33.74 40.00 48.97a53.80 61.46c61.87 54.90 41.90 36.53 28.47a42.76
200227.66b28.14 30.16 40.36b46.30a57.50 62.80a59.31b52.34a39.13 32.89b32.35 42.41
200330.26 27.82 34.90 40.59a48.35 59.23 64.58 63.07a53.30 46.03 28.62a25.87 43.55
200423.60a28.69 36.67a42.33 49.35 58.10 64.61 64.27a52.21a43.81 33.33 29.71 43.89
200523.94 27.14 36.32 41.83a51.63a55.97 62.03 61.10a51.40 45.32 31.90 21.46c42.50
200630.43a25.81a33.61 40.87 48.81 57.90 65.16 61.00 52.37 42.81 31.30 24.03 42.84
200720.81 30.50 34.77a40.81c49.52 55.28a65.58 60.32 52.80 40.94 31.27 23.74 42.19
200817.00 27.03 34.00n-----z52.50u55.11b61.74d59.11l51.75j39.92e34.73o19.71n40.16g
200920.43h26.00d30.36c38.95j48.92f58.43 63.46c63.05k53.53m40.82c33.77d20.20f42.14f
201030.38e32.20c33.65e41.15c45.61c54.68b61.50a60.67d52.44e43.00 29.87 27.48 42.72
201124.42 23.71 32.87 37.20 45.32 53.57 57.13 61.48 53.60 42.10 30.30 25.71 40.62
201221.74 27.45 31.23i40.43i47.13 54.21p62.93a62.97b52.93 43.13 36.14b28.46c42.54c
201320.66b27.71 34.29 41.57 50.26 56.57 64.97 63.46c56.26g39.07a33.00l23.82n44.28c
201428.58l25.57 35.35 42.27 51.16 52.83 62.10 60.97 48.93 43.97 28.10 25.48b43.34a
201526.58 31.54 36.13 37.37 46.32 59.23 61.42 57.04c47.50 43.87 28.93 24.16 41.67
201624.68 27.21 33.52 42.52a48.61 52.97 57.17a58.00 46.97 40.32 37.30 16.52 40.48
201716.35 19.21 31.10 37.40 44.68 51.73 60.77 58.87 49.47 35.61 31.30 22.61 38.26
201826.06 22.78a30.52 37.73 51.61 52.07a57.52b57.19 47.03a40.68 31.31a27.81 40.19
201925.32 15.50 25.23 39.33 49.33a55.10a59.13 59.77a51.07 35.42 29.10 26.74d39.25
202024.58 25.86 30.29 37.72a47.45 54.67 59.07b61.24f52.90 40.00 31.14a23.77 38.86a
202126.17a21.61 28.84 37.29b46.29 59.13 65.19 60.67a50.19c38.16 32.90 -----z42.40a
Period of Record Statistics
MEAN21.22 24.83 32.07 39.66 47.70 54.57 60.38 59.40 50.49 40.61 31.53 24.87 40.63
S.D.5.76 4.96 2.76 2.31 2.22 2.74 2.84 2.43 2.49 2.44 3.59 4.14 1.73
SKEW-0.94 -0.67 -0.51 0.27 0.23 -0.10 -0.81 -0.18 -0.82 -0.12 -0.76 -0.46 -0.12
MAX31.61 34.70 36.97 45.60 54.00 61.76 65.61 65.77 55.70 46.29 39.80 34.35 43.89
MIN0.97 7.85 24.19 34.70 42.97 44.67 46.33 51.53 38.30 35.42 15.96 15.17 36.40
YRS125 127 124 120 123 125 129 126 126 128 126 121 107