CHELAN, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(451350)

File last updated on November 20, 2017
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-----z87.35 87.29 74.70 63.10 -----z36.19 69.73g
189227.81 -----z54.10 57.27 68.84 78.97 83.13 84.97 75.23 60.94 -----z-----z65.69c
189324.71 27.43 41.87 56.40 68.07a73.00 82.57a84.39 70.77 56.48 40.33 36.52 55.21
189430.58 32.57 46.58 59.90 70.06 76.53 86.84 87.16 72.53 58.19 48.17 33.53a58.55
189530.73a41.79 50.58 62.73 67.97 78.50 83.06 83.13 66.60 63.42 45.47 37.68 59.30
189634.71 44.07a48.13 58.37 63.84 77.10 86.68 83.00 71.20 60.71 33.64b40.26 58.48
189733.13 37.61 42.65 64.30 75.42 76.50 79.48 88.39 73.00 60.55 40.57 31.55 58.59
189827.74 42.39 48.48 63.00 71.71 77.43 85.58 88.16 74.20 -----z41.40 29.29 59.04a
189932.13 33.25 48.13 59.13 69.81 76.20 86.29 76.29 77.77 57.61 50.29b36.03 58.58
190038.03 38.14 53.23 64.97 71.58 82.03 87.65 80.32 71.37 56.00 40.37 43.68 60.61
190132.39 37.54 51.48 -----z71.13 72.83 81.61 88.55 69.00a65.03 47.17 37.42 59.47a
190233.55 38.29 49.71 58.14a68.84 75.70 80.79b87.13 74.10 64.42 42.79a31.03 58.71
190332.39 37.19l44.93a58.40 68.94 81.60 81.81 84.06 71.10 62.21c40.70 34.52 60.06a
190433.81 35.55 42.84 61.27 69.00 78.90 85.58 88.06 78.69a63.13 50.10 37.67a60.38
190534.77 37.63a54.40a63.30 68.94 75.73 87.23 84.39 73.90 54.87 45.30 34.68 59.59
190633.87 40.14 48.55 68.30 70.23 74.87 95.26 87.87 76.97 65.61 46.80 35.30a61.98
190720.16 36.04 46.94 60.47 74.03 76.41a86.74 79.50o75.60 68.65 48.31a37.69b57.37a
190835.03b37.03 51.29 63.40 67.81 79.53 88.81 86.58 77.83 60.26 48.83 33.81 60.85
190923.97b37.82 51.13a61.17 71.39 79.13 83.97 85.61 78.53 60.48 43.93 26.80a58.66
191030.16 31.86 54.90 64.63 76.62b78.33 89.10 81.39 73.27 62.35 44.30 35.58 60.21
191129.42 35.50 53.90a63.50 67.90 79.20 88.23 85.39 70.18b61.68 41.93a33.17a59.17
191228.74 40.10 50.45 61.57 74.81 82.03 85.61 81.68 73.77 58.00 45.80 37.93a60.04
191328.77a32.36 46.06 63.83 70.97 79.30 87.52 87.06 76.57 58.45 46.21a35.39 59.37
191437.06 35.39 53.23 64.70 75.65 78.67 91.94 89.81 72.00 62.37a45.20 28.06 61.17
191529.71 40.43 56.06 69.13 70.03 81.43 87.13 94.39 76.97a63.45 40.97 33.77 61.96
191620.55 33.76 47.68 64.67 69.26 76.60 81.42 86.84 76.53 63.16 42.90 29.32 57.72
191730.42 33.11 44.65 56.60 71.19 79.07 90.74 92.13 79.00 66.55 48.93 39.30a60.97
191837.77 37.32 -----z-----z-----z-----z-----z-----z-----z64.69b46.13 37.89c44.76g
191939.08s37.07 50.07a63.28a68.69b75.93b85.38e84.36f71.45a60.24b42.17a32.76j61.59c
192033.48 44.10 -----z-----z-----z73.77h90.70d86.48b71.11c56.59d44.48e35.96c57.87d
192134.14b37.15a49.83a58.65d74.25k-----z-----z-----z69.18b64.70k42.50 28.80f48.58f
192223.27a29.21 45.45 58.74g70.08e84.70 89.07d85.93b77.67f65.59i-----z-----z61.10e
1923-----z31.62b50.35 64.61g71.19 76.67 88.45 86.32 79.41a61.13a45.37 34.43a62.50b
192426.77 43.55 53.03 62.57 79.35 79.30 90.03 86.23 77.07 60.52 42.93 29.84 60.93
192535.13 43.64 53.32 64.20 73.74 81.47 92.74 84.68 74.83 61.35 44.47 39.81 62.45
192632.65 45.68 58.94 66.63 70.52 84.90 92.71 85.45 69.13 61.90 47.77 33.42 62.47
192730.35 37.86 50.00 59.60 67.32 80.13 89.32 84.71 70.10a58.03 42.90 28.68 58.25
192831.97 42.86 52.87 58.20 75.90 78.80 89.23 85.10 78.27 60.87 46.17a32.97b61.10
192921.03 28.79 52.97 58.57 71.26 75.97 86.00 89.23 73.23 63.87 45.67 35.41b58.50
193019.90 41.89 54.35 65.67 69.03 75.30 87.52 87.55 74.87 57.84 41.30 31.74 58.91
193134.53a39.57 49.81 63.07 73.55 77.20 88.58 87.61 73.37 62.21c42.03 30.63a60.18
193227.60a35.32a48.55 61.83 69.19 81.40 80.04d83.93a75.67 61.74 46.97 35.29c58.96
193336.34b31.24c48.52b61.67 64.19 76.87 85.94 87.27a68.97 61.61 46.93 39.74 59.11
193439.74d45.68 57.26 68.50b73.63a81.86b85.59d87.31b68.52e62.38e48.63 36.23 62.94
193530.43a40.07 48.39 59.60 71.87 76.43b83.42 82.65 78.13 59.27a38.89b32.86i60.83a
193633.77 21.45 48.27a64.83 74.19 77.37 86.42 85.94 74.97a64.90 40.50 35.80a59.03
193716.52 30.61 46.52 57.27 70.00 75.37 86.65 81.35 76.73 63.84 43.11c36.19 57.01
193830.81 34.25 47.58 63.60 73.06 81.70 89.84 84.81 80.10 61.68 43.93a35.63a60.58
193937.23 35.96 50.55 64.83 72.48 76.20 87.74 88.45 77.70 63.10 47.60 41.13 61.91
194033.87 38.76 55.35 62.17 74.97b84.83 86.90a87.23 77.57 61.07a38.63 36.71 61.50
194128.97a42.29 56.77a65.47 70.06 77.60 87.03 79.74 67.80 60.29 49.18b37.37a60.21
194228.58 38.85a51.40a62.60 65.73a73.60 87.71 88.16 78.23 63.23 39.89c33.71 59.31
194323.97 39.68 48.65 63.70 67.16 74.37 85.19 82.17b77.97 60.63d43.57 34.67a58.48
194433.61 39.10 50.68 62.23 71.97 77.28a84.71 79.71 74.21a63.84 40.55a30.32 59.02
194534.06 42.63a49.23a59.21a71.68 76.10 87.83a85.47a71.97 62.68 41.71b33.50a59.67
194631.04f35.25d47.64i57.68e75.74 74.50 83.68 83.60a71.23 56.13a38.21b32.04d60.81b
194729.21b39.04a53.35 65.00 77.48 73.43 81.93a80.13 72.66a55.30a42.87 32.67j60.95a
1948-----z-----z-----z-----z-----z77.57 78.97 75.13a71.83 56.93a42.00 25.10 61.08e
194915.10 26.85a46.13a65.17 76.13 78.73 85.00 85.35 76.80 60.94 50.60 36.81 58.63
195016.39 35.18 46.81 57.73 67.71 75.70 85.77 86.13 80.00 56.03 43.93 37.84 57.44
195135.52 38.39 44.45 65.10 69.94 78.10 87.10 84.81 75.87 57.71 42.30 29.39 59.06
195225.42 37.52 47.77 63.60 72.52 75.33 86.97 86.42 79.27 68.35 43.57 39.00 60.48
195344.65 47.29 53.81 58.97 68.42 71.07 84.77 82.55 76.47 63.61 49.07 43.48 62.01
195431.06 40.11 47.93a55.57 70.32 72.33 81.81 79.48 72.77 58.77 50.33 35.77 58.02
195533.19 37.39 43.68 55.96b64.74 77.40 78.87 85.10 76.70 59.77 35.57 30.74 56.59
195633.74 28.79 45.81 63.87 74.71 72.67 87.03 84.90 75.93 59.81 41.23 37.26 58.81
195721.00 34.25 47.74 61.97 75.23 78.17 82.58 80.90 78.97 57.42 45.97 39.26 58.62
195836.26 45.54 49.97 59.83 78.06 79.90 91.42 91.45 74.43 61.74 41.83 34.97 62.12
195933.32 35.61 51.81 63.97 66.71 75.87 87.90a81.45 69.43 58.87 42.70 36.16 58.65
196029.48 41.00 48.77 60.50 66.84 78.70 91.52 82.45 75.20 62.39 44.60 31.39 59.40
196134.81 44.75 50.35 60.33 68.68 84.23 88.65 89.74 73.13 59.97 40.87 34.16 60.81
196230.81 41.39j47.42 65.27 66.00 77.50 85.19 81.42 76.20 61.00 47.53 37.90 61.48a
196331.65 43.86 53.16 56.27 70.97 77.30 81.35 84.26 79.17 63.55 45.47 33.00 60.00
196435.71 40.45 49.87 59.43 68.71 76.00 83.77 79.71 71.87 60.84 43.03 29.81 58.27
196534.23 41.25 48.81 62.93 69.68 78.07 85.45 83.39 72.80 64.13 46.60 34.81 60.18
196631.84 40.14 49.84 63.73 72.61 73.67 81.77 84.10 77.97 60.13 48.27 38.71 60.23
196740.94 48.86 50.48 55.93 69.03 80.23 86.06 91.68 81.60 59.84 48.17 34.16 62.25
196832.97 45.07 54.90 59.47 71.17a77.13 87.71 79.19 75.10 57.42 45.53 31.50a59.76
196920.45 33.07 48.35 59.37 75.00a83.20 84.16 83.84 73.07 59.58 45.43 34.71 58.35
197030.58 42.14 50.45 58.30 71.16 82.43 88.42 85.32 69.90 60.00 43.13 31.45 59.44
197135.26 41.21 45.03 58.80 72.39 73.07 85.90 90.65 70.50 58.71 44.43 29.42 58.78
197230.55 37.55 51.35 57.57 70.61 75.10 82.65 84.77 69.70 60.84 44.43 33.16 58.19
197331.39 40.89 54.97 64.00 72.81 76.90 88.00 87.10 74.53 59.77 40.33 38.97 60.80
197433.90 45.57 50.32 60.27 66.68 81.57 82.52 87.06 79.50 64.03 45.87 38.90 61.35
197533.00a34.57 46.42 58.33 70.87 77.13 87.84 80.45 77.53 59.00 45.53 37.68 59.03
197635.03 43.55 48.16 59.67 70.23 74.83 84.13 78.58 78.63 62.48 46.50 36.13 59.83
197728.32 45.68 53.10 67.20 67.84 82.60 84.77 91.06 71.77 61.48 44.50 35.29 61.13
197833.29 39.54 53.10 59.53 69.35 82.13 86.42 83.29 70.10 63.58 40.03 32.42 59.40
197922.61 35.46 53.10 62.50 74.71 82.20 88.10 86.90 78.53 65.03 40.43 39.87 60.79
198026.70a36.52 50.58 63.97 70.26 74.40 84.19 80.90 73.57 62.03 44.43 34.68 58.52
198139.39 41.86 55.19 59.83 68.65 72.13 82.65 90.47a76.07 59.39 46.97 35.00 60.63
198232.52 39.61 51.81 59.07 69.84 81.60 81.97 84.19 74.10 59.65 39.87 34.52 59.06
198339.00 42.46 53.13 61.50 75.13 77.23 78.70a87.13a72.73 62.48 46.83 25.23 60.13
198434.87 40.21 54.43a59.37 65.55 75.33 84.81 83.77 70.57 57.65 42.70 23.93a57.77
198526.81 31.32 -----z65.33 73.71c81.17 96.19 85.63a70.66a60.83b30.23d25.87a58.89a
198634.37a39.11a54.00 60.69a70.39 82.67 82.39 90.35 69.60 62.87 45.59a32.90a60.41
198731.55 42.36 51.77a64.93 73.29 80.67 82.31b85.81 81.23 65.83a48.80 33.33a61.82
198832.03a42.24 53.19 63.70 69.74 75.73 84.90b85.30a75.17 66.35 44.93 33.74 60.59
198936.48 31.63a46.03 62.77 69.65 80.47 84.13 82.42 77.47 62.62b47.52a36.06 59.77
199040.32 37.93 53.06 65.72a67.52 75.03 87.32 85.21b79.90 58.06 49.33 27.17a60.55
199129.45 45.29 50.13 61.10 66.26 71.70 84.71 84.45 76.63 58.29 40.72a38.03 58.90
199235.55 42.52 54.39 61.67 72.90 82.63 79.26 83.19 70.57 60.39 42.87 29.55 59.62
199325.55 34.39 46.52 57.73 75.61 73.07 76.10 81.13 75.77 62.71 41.63 34.19 57.03
199437.74 36.39 52.63a63.07 71.16 74.97 87.90 83.94 78.17 61.13 38.37 34.39 59.99
199531.58 42.41a48.55 59.70 72.19 76.07 83.55 77.90 78.33 59.16 45.60 35.23 59.19
199630.00 37.76 51.00a59.70 67.10 77.87 85.94 83.16 70.93 58.87 41.62d25.27p60.36a
199731.03a37.68 47.26 58.47 70.37a73.00 80.71 84.19 73.63 58.68 46.70 35.81 58.13
199832.29 44.11 52.97 60.57 69.76b75.73 88.00 88.03 82.57 62.68 49.03 34.97 61.73
199938.10 43.04 50.29 61.13 66.94 71.64p82.74h84.19 76.00 61.74 49.00 41.94 57.24b
200033.97 40.24 50.81 64.83 68.03 76.13 84.84 85.58 72.80 61.65 40.33 31.97 59.27
200136.32 39.21 52.39 60.17 72.45 74.30 84.00c88.16 79.20 61.10 47.13 36.65 60.92
200238.77a42.82 46.90 60.69a68.10 80.30 85.53a85.23a76.47 62.13 47.72a38.32 61.08
200336.74 44.68 52.52 59.53 67.42 80.80 89.68 88.06 79.93 65.19 44.00 33.29 61.82
200432.16 40.21 56.13 66.67 69.55 80.97 87.26 86.42 73.40 63.77 46.63 37.52 61.72
200530.19 45.39 54.55 61.70 71.13 73.87 84.90 89.39 76.10 62.42 42.10 29.57c60.11
200637.94 43.11 50.87 60.13 69.74 76.93 87.90 87.03 75.23 63.77 43.23 31.84 60.64
200731.42 40.63a52.03 60.83 71.55 74.93 87.68 83.52 77.67 58.26 44.50 35.55 59.88
200827.81 41.97 50.23a55.86b71.97 73.60 84.71 84.15e76.44e60.13 45.94m29.17m62.69b
200930.48b37.19a46.06 59.92f70.84 78.73 86.83a86.20f79.92e57.26 46.43 29.00b56.27b
201037.27a44.46 53.26 57.73 64.58 72.53 85.13 82.45 71.34a62.42 41.00 34.16 58.86
201133.97 38.61 46.90 55.00 64.68 72.00 76.55 84.94 78.90 61.29 44.23 35.32 57.70
201233.74 41.93 48.59i60.90i68.84 70.07p85.17a88.47a76.97 60.61 46.82b36.50c59.89c
201328.10b42.18 52.26 60.90 70.35 74.03 89.32 84.11c78.13g61.13a46.17l31.71n62.49c
201437.32l35.68 51.16 62.43 73.84 75.40 90.52 88.16 76.93 64.00 44.03 35.59b63.43a
201534.52 46.75 58.10 62.83 75.42 89.13 90.29 88.32c75.27 65.68 45.67 34.87 63.90
201632.42 43.24 54.48 70.79a74.84 81.40 86.37a89.23 77.43 59.45 52.17 29.74 62.63
201725.39 32.82 48.90 59.73 73.29 80.13 91.61 91.42 77.70 60.74 42.90j-----z64.17b
Period of Record Statistics
MEAN31.48 38.78 50.44 61.53 70.74 77.67 85.88 85.21 74.89 61.17 44.25 34.45 59.82
S.D.5.29 4.86 3.43 3.17 3.14 3.38 3.52 3.38 3.43 2.68 3.55 3.78 1.52
SKEW-0.78 -0.63 -0.09 0.25 0.22 0.45 -0.08 -0.22 -0.18 0.09 -0.64 -0.36 0.03
MAX44.65 48.86 58.94 70.79 79.35 89.13 96.19 94.39 82.57 68.65 52.17 43.68 63.90
MIN15.10 21.45 41.87 55.00 63.84 71.07 76.10 75.13 66.60 54.87 30.23 23.93 55.21
YRS121 122 120 118 122 121 124 122 124 124 121 117 101