KETCHIKAN AIRPORT, AK

Total of Precipitation (Inches)

(504590)

File last updated on March 28, 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
1910-----z-----z-----z-----z-----z-----z-----z-----z7.64 28.92 11.88b17.85d66.29h
19118.51b7.24a9.06t11.99t2.26 6.43 -----z-----z-----z-----z-----z-----z24.44h
1912-----z-----z-----z-----z5.50s4.95o5.60t4.89 16.44 27.78 18.47 20.26d87.84g
191316.33m8.37p15.10m-----z10.40m4.97 15.73l11.87q19.17g17.69 20.12 18.47 61.25h
191412.39 18.64 13.56 12.37 7.42 3.19 28.06 12.59 19.72 19.72e17.36 8.28 173.30
191517.37 8.09 18.52j17.87 4.31 7.57 5.12 19.42 7.63 26.62 26.58 20.57 161.15a
19161.18 8.73a13.72 13.64 8.37 6.04 10.63 7.14 13.74 14.49i20.54 10.42 114.15a
191710.99a10.37 7.56 8.25 6.30 10.00 10.08 21.22h13.27 23.46 53.85 11.11 165.24a
191814.60 10.82 11.53 11.53 8.46 4.78 8.58 13.64 5.44 25.63 21.90 15.69f136.91a
191918.44 8.75 10.21 11.76 9.77 5.14 3.72 7.10 10.64 8.56 15.62 13.93 123.64
192018.51 8.86 8.77 6.57 9.82 6.62f1.49 33.90 13.58 22.06 14.12 12.43 150.11a
192111.53 24.51 4.37 6.21 5.71 11.23 7.08 8.31 15.52 30.33 16.58 20.45 161.83
192214.14 4.26 15.71 12.94 10.56 1.67 2.63 5.86 16.64 20.77 29.86 7.68m135.04a
192310.76 18.53 17.32 13.23 11.37 3.32 2.34 15.07 11.88 14.85 31.23 22.80 172.70
192419.14 15.72 6.46 12.92 15.26 1.20 9.28 8.84 24.04 21.41 23.93 9.59 167.79
192511.42 7.78 14.18 11.98 6.70 9.17 12.81 7.15 3.06 14.24 21.70 34.18 154.37
192627.57 19.34 13.08 17.33 12.36 10.42 9.32 6.09 3.39 22.89 8.16 21.76 171.71
192714.05 14.38 17.82 10.23 5.91 3.34 4.29 9.85 16.36 16.60e7.20 10.59l120.03a
192818.31h13.88 23.87 7.64f12.28 2.34 9.14 7.08 10.90 16.10 13.79 17.08 126.46b
192913.24 6.96 13.67d4.90 3.82 8.62 10.80i21.07 1.68 28.16b21.95 10.00 134.07a
19301.82 14.35b9.49 9.00 6.02 10.72 6.55 1.63 13.37 24.14 23.90 35.16 156.15
193118.16 16.15 11.58 12.34 11.47 3.65 4.64 13.35 9.36 21.20 9.25 9.67 140.82
193216.30 16.47 12.37 5.54 8.95 7.92 11.36 7.89 20.19 16.81 19.58 9.91 153.29
19338.99 7.83 10.44 9.83 4.47 8.03 10.69 15.24 10.63 19.12 29.49 4.26 139.02
193422.33 9.74 11.00 9.86 5.74 11.25 5.29 3.68 10.18 12.68 15.54 14.68 131.97
193513.41 12.52 5.55 5.34 11.24 8.92 4.40 12.54 5.36 12.37 13.98 23.36 128.99
19368.68 3.56 13.30 7.37 11.50 4.56 8.79 8.37 10.14 17.51 23.92 10.70 128.40
19373.59 5.04 11.83 10.48 6.06 8.95 8.87 9.21 12.54 17.77 7.93 14.85 117.12
193818.36 12.61 6.64 15.20 8.75 9.86 7.65 3.00 17.09 19.44 14.44 17.06 150.10
193919.55 10.37 8.67 17.53 11.11 4.73 7.29 13.32a17.51 25.77 22.24 21.11 179.20
19406.52 7.03 14.36 8.88 10.65 8.57 4.34 21.58 7.68 13.37 18.30 15.02 136.30
194112.17 3.55 11.44 8.57 5.77 8.15 8.02 2.82 13.68 22.79 25.51 9.35 131.82
194214.77 5.72 15.25 14.00 6.72 2.33 2.70 5.18 8.05 25.82 22.58 16.02 139.14
194318.46 20.70 4.65 13.97 8.94 2.16b14.95 11.23 15.00 12.25 24.56 18.91 165.78
194418.89 4.95a18.69b10.16 14.16 5.57 8.22 9.20 11.95 34.27 16.02 13.08 165.16
194516.36 13.81 16.67 9.31 3.15 12.25a9.12 2.00 17.15 24.90 9.62 9.19 143.53
194617.53 9.85 16.67 11.72 2.51 2.53 13.40 8.73 15.91 20.20 14.50 16.20 149.75
194718.14 9.96 16.99 13.94 6.37 9.39 6.68 13.37 18.73 22.26 12.41 18.00 166.24
194821.08 7.14 6.77 1.58 4.04 6.28 6.16 9.16 24.03 27.17 18.90 12.99 145.30
1949-----z-----z-----z-----z-----z-----z-----z-----z28.07 22.52g21.41a6.56 56.04i
19501.65 16.58 10.19 15.35 9.96c3.51 16.95 16.67 20.63 15.28 12.73 14.25f139.50a
195114.98 12.28 17.22 12.38 7.28 12.89 5.82 7.86 7.65 17.73 12.89 13.47 142.45
195210.35g11.90a13.25 18.34 7.78 9.56 8.47 12.35 22.48 18.13 13.50 13.55 149.31a
195310.26 22.08 19.04 13.47 12.73 3.70 8.82 7.73 19.04c26.45d21.42 24.22 188.96
195411.12 25.60 6.05 11.28 5.15i8.52 7.01 0.90 11.03 27.27 20.16 25.64 154.58a
195519.29 13.54 8.85e11.98 11.87c9.18 2.68 20.83 12.72 26.76 12.31 4.94 154.95
19565.34 10.25 10.90 14.01 13.82 11.58 4.62 25.33 6.56 21.20c22.75 23.16 169.52
19572.92 8.38 7.96 11.52 7.46 6.99 8.00 7.75 8.62 14.81 22.02 16.54 122.97
195820.01 9.66 3.94 13.12 13.20 0.99 4.43 20.78 13.67 31.47 16.28 15.25 162.80
195910.83 10.65 20.10 9.70 6.92 6.00 9.88 11.67 13.62 25.83 22.80 30.63 178.63
196015.22 -----z9.01b15.70 7.22 7.97 15.29 6.48 12.48 35.56 14.85 20.87 160.65a
196115.10 19.82 11.37 11.62 6.55 7.87 4.92a17.12 10.42 34.64 16.74 18.45 174.62
196231.28 1.11 12.04 17.30 4.43 10.76 4.53 9.00 16.56 18.91 20.20 23.52 169.64
196315.77 21.04 6.34 10.88 6.83 13.10 6.69 0.95 26.98 26.99 15.59 18.40 169.56
196416.72d18.23 9.78 9.65 6.56 5.37 10.97 19.54 11.18 31.10 16.71 9.53 165.34
196518.48 20.23 4.85 9.19 5.92b5.63 2.39 5.51 1.77 26.45 10.77 16.10 127.29
196617.61 12.09 21.71 4.63 21.03 5.46 3.80 11.24 19.50 22.70 10.13 14.37 164.27
196713.70 23.69 2.75 4.51 11.44 5.32 17.57 21.27 21.95 23.32 9.21 16.52 171.25
196817.07 11.55 14.45 22.51 3.45 4.14 7.42 13.18 21.51 30.62 23.12 6.66 175.68
19694.94 5.48 5.37 18.01 5.60 5.92 13.27 13.19 5.73 13.09 42.98 22.15 155.73
197016.01 13.06 12.96 16.89 14.47 11.79 11.18 15.80 21.59 -----z-----z-----z133.75c
19718.23a16.44 14.01 14.08 6.41 6.80 0.93 13.00 9.91 23.92 20.92 9.67 144.32
197212.64 15.88 18.46 16.32 8.45 8.10 8.09 18.56 9.29 24.20 11.40 12.38 163.77
197316.32 11.33 14.83 7.99 16.57 9.20 11.65 8.29 23.05 21.42 6.24 16.76 163.65
19749.36 19.08 3.94 11.35 15.71 10.17 5.04 5.97 8.14 42.37 27.73 23.99 182.85
197517.06 9.55 10.09 8.61 8.43 8.01 10.87 7.94 10.48 12.83 13.46 22.29 139.62
197621.61 8.94 14.96 14.74 15.05 5.41 11.40 14.87 14.85 16.26 15.63 21.35 175.07
19779.86 22.14 12.20 11.56 4.84 11.35 7.74 4.30 8.46 30.34 15.13 6.95 144.87
19785.70 -----z-----z-----z-----z-----z-----z-----z-----z29.60 14.29 9.70 59.29h
19797.27 7.09 6.96 2.03 13.00 9.30 5.22 1.56 15.86 15.77 8.56b19.36 111.98
19805.29 11.55 12.99 22.20 8.14 1.78 -----z8.46 -----z23.43 23.14 13.35 130.33b
19816.81 -----z15.84 14.12 -----z9.35 4.80 11.71 21.77a14.37 21.82 7.65 128.24b
19823.75b-----z-----z13.02a-----z-----z-----z-----z8.59 21.33 -----z-----z46.69h
198316.70 9.27 2.97 5.48 7.62a8.00b11.65 16.36 10.94 20.58 -----z-----z109.57b
198419.83 15.56 13.66 6.43 9.99 14.32 8.30 11.28d9.72 14.98 11.47c10.11c145.65
1985-----z-----z-----z-----z-----z-----z2.18t11.59l9.27 -----z-----z-----z9.27k
1986-----z-----z-----z-----z-----z-----z-----z-----z10.97 38.67a16.58 12.76 78.98h
198717.85 12.23 -----z14.46 11.57 11.57 1.52 4.78 22.28 16.11 31.73 13.65 157.75a
1988-----z-----z-----z11.20 9.40 9.68 12.38 10.06 12.29 21.38 25.02 10.49i111.41d
198921.63 0.82 4.73 2.73 3.08 2.70 2.30 1.30 6.49 19.13 14.80 19.49 99.20
19909.47 9.49 9.18 8.11 3.59 6.84 3.81 4.25b6.49 14.10 9.64 16.57 101.54
199112.25 18.60 7.52 6.05 10.45 3.80 8.46 11.81 5.97 13.33 19.75 24.66 142.65
199216.95 7.66 6.93 9.14 8.99 2.42a3.05 4.17 23.25 10.40 16.46 5.76 115.18
199312.25 21.78 5.49 2.90 7.06 2.22 5.26 2.77 2.83 14.80 14.82 13.48a105.66
199410.97 4.77 9.74 5.40 10.23 6.20 3.42 2.61 18.18 18.16 10.99 8.49 109.16
19952.79 6.05 7.14 4.26 2.52 3.44 4.13 5.10 4.47 20.00a13.14 15.41 88.45
19965.10 7.21 7.60 8.75 2.68 8.45 0.36 13.01 13.67 20.04 8.88 4.63v95.75a
1997-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1998-----z-----z-----z9.87 4.23 3.67 4.51 19.23 16.15 17.10 9.07 18.53 102.36c
199914.05 12.74 12.13 11.00 19.72 9.56 6.12 16.07 20.10 24.87 25.39 14.43 186.18
200013.43 11.02 23.83 15.03 8.42 3.96 14.01 13.71 17.34 15.18 24.73 12.33 172.99
200124.48 9.51 11.23 11.81 22.44 9.89 8.57 16.21 21.79 18.06 14.26 15.65 183.90
20029.70 13.17 5.86 2.07 13.75 12.02 4.60 22.35 15.29 9.81 19.53 23.51 151.66
200319.91 6.69 13.99 6.98 13.36 8.67 4.41 12.08 19.39 15.31 16.92 17.28 154.99
200429.48 10.29 12.58 9.10 6.46 3.57 4.60 5.19 13.84 21.25 18.52 19.36 154.24
200525.06 14.33 18.92 9.63 4.26 4.80 19.02 10.64 15.32 25.72 27.95 20.38 196.03
200615.12 8.02 4.28 19.56 8.72 7.37 9.59 9.49 18.36 15.43 13.98 31.53 161.45
200718.37 11.05 19.43 23.03 7.48 3.94 10.04 6.05 9.97 32.51 12.30 15.30 169.47
200810.02 18.59 14.63 12.91 9.21 11.78 14.23 12.22 5.38 25.37 20.53 9.50 164.37
200914.13 13.34 9.19 7.75 6.09 7.31 3.19 13.77 28.28 17.89 20.60 5.50 147.04
201022.11 10.90 24.50 4.75 2.12 7.10 2.77 8.19 13.96 34.80 16.35 9.57 157.12
201114.89 12.49 10.05 6.17 9.82 2.83 11.93 17.73 28.33 24.13 18.24 14.66 171.27
201222.26 9.35 10.69 7.98 19.23 9.85 9.05 5.63 14.41 8.48 17.11 9.86 143.90
201313.82 19.75 5.73 7.53 12.82 4.55 4.18 9.83 16.44 12.73 15.76 27.68 150.82
201414.41 4.00 16.21 21.20 6.06 12.25 12.88 14.01 13.40c22.41 15.03 15.76 167.62
201530.97 12.81 13.23 16.90 0.68 5.51 7.79 11.56 11.75 30.64 15.98 9.93 167.75
201616.48 24.88 10.47 16.52 9.59 5.25 4.77 3.57 14.88 7.38 16.90 9.11 139.80
201716.65 12.35 16.11 3.67 11.03 10.97 11.17 24.85 11.38 11.21 7.59 13.63 150.61
201815.60 4.83 6.52 13.06 10.94 6.90 1.21 4.37 4.92 11.58 16.69 9.97c106.59
201923.01 1.83 6.64 13.73 2.50 8.46 5.50 11.46 11.15 20.78 21.27 20.85 147.18
202015.44 12.34 7.99 9.30 5.29 13.66 10.92 22.85 8.34 8.20 30.05 30.72 175.10
202116.92 8.02 15.63 10.05 6.38 6.44 4.69 13.76 23.68 19.43 16.72b2.01c143.73
202221.32 16.75 13.96 7.74 10.00 6.34 10.08 7.99 16.97 21.59 11.45 10.19 154.38
202320.65 23.22 7.91 13.80 6.20 7.41 4.32 7.12 19.69 17.91 24.86 22.45 175.54
202415.41 4.25 8.23d-----z-----z-----z-----z-----z-----z-----z-----z-----z27.89i
Period of Record Statistics
MEAN14.62 12.03 11.50 11.06 8.67 7.09 7.68 10.83 13.78 21.03 18.11 15.81 151.98
S.D.6.26 5.71 4.91 4.65 4.24 3.21 4.44 6.23 6.15 7.00 7.19 6.66 22.66
SKEW0.05 0.42 0.43 0.25 0.79 0.09 1.24 0.79 0.28 0.43 1.55 0.57 -0.67
MAX31.28 25.60 24.50 23.03 22.44 14.32 28.06 33.90 28.33 42.37 53.85 35.16 196.03
MIN1.18 0.82 2.75 1.58 0.68 0.99 0.36 0.90 1.68 7.38 6.24 2.01 88.45
YRS104 102 101 104 103 105 102 104 109 108 108 102 83