SEATTLE NAS, WA

Average of Average Temperature (Degrees Fahrenheit)

(457468)

File last updated on April 19, 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
1929-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z44.90 43.33d44.12j
193031.84 44.12 45.69b-----z52.74 58.37 -----z65.23 58.88 51.26 45.03 42.16 49.53b
193144.73 43.50 46.24 51.90 57.35 -----z-----z-----z59.80 -----z-----z-----z50.59f
193238.81 -----z46.25g50.28a54.40 61.40 61.05 63.65e59.43a53.80c48.02h38.56 53.49c
1933-----z-----z-----z-----z-----z-----z-----z65.24 -----z52.45 46.10d-----z54.60i
193445.13 -----z-----z54.85c-----z-----z-----z-----z-----z-----z-----z-----z49.99j
1935-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1936-----z-----z-----z-----z-----z-----z-----z-----z-----z54.38e-----z42.90j54.38k
1937-----z-----z47.42f-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1938-----z-----z45.06d53.17c-----z60.48d-----z-----z-----z-----z43.50h41.93b50.16h
193943.02a-----z-----z-----z55.52 -----z-----z-----z-----z-----z-----z-----z49.27j
1940-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1941-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1942-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z44.67 -----z44.67k
194336.20c-----z-----z-----z54.30c-----z-----z-----z-----z-----z-----z-----z45.25j
1944-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1945-----z-----z44.66 48.67 58.24 60.10 65.60 64.47 58.70 54.27 45.42 42.02 54.21b
194642.53 43.70 45.34 49.95 58.84 60.13 65.61 64.73 60.45 50.34 43.12b40.87 52.13
194738.38a46.11a48.55 52.40 59.26 61.47 64.58 64.45 60.75 53.90 44.90 44.32 53.26
194840.40 40.69 44.48 47.60 54.40 63.48 64.27 62.85 58.65 52.08 44.10 38.02 50.92
194932.40a38.96 45.94 51.27 58.16 59.63 62.92 64.32 62.00 50.34 50.72 40.90b51.46
195027.24 41.38 43.61 48.18 52.90 61.52 64.82 66.29 60.92 52.16 44.64b46.71 50.86
195140.03b42.55 41.65 51.45 56.27 63.50 66.60 64.77 62.42 53.71 46.78 39.27 52.42
195239.02 42.86 44.84 50.97 56.50 58.50 65.95 65.85 63.15 57.35 45.02 44.84 52.90
195346.95 43.61 45.60 49.95 55.90 58.47 64.87 65.95 61.92 55.69 49.50 44.58 53.58
195438.42 44.45 43.47 47.95 55.85 58.17 62.08 62.40 60.80 53.47 51.00 43.45 51.79
195541.52 40.61 41.34 47.05 52.53 59.17 62.19 63.00 59.78 53.23 41.23 40.63 50.19
195640.79 37.76 43.10 51.28 58.73 59.02 66.97 65.48 60.43 52.29 45.27 42.34 51.95
195734.66 41.04 45.85 51.90 60.13 62.32 63.85 64.66 65.22 53.23 45.85 45.53 52.85
195845.11 49.11 46.24 51.57 61.97 65.93 71.50 68.76 61.57 55.50 45.00 46.37 55.72
195941.77 42.77 45.68 50.72 55.15 61.42 67.15 63.71 58.75 53.50 45.27 41.74 52.30
196040.60 42.90 45.23 51.23 54.08 60.13 67.19 63.31 59.58 54.61 46.38 41.47 52.23
196145.03 45.91 47.26 49.03 55.73 63.75 67.39 68.53 59.60 51.85 43.83 41.71 53.30
196240.65 43.75 43.74 51.85 53.11 60.15 64.55 64.50 61.68 54.60 48.10 44.16 52.57
196335.79 48.68 45.47 49.70 57.55 59.58 63.06 65.58 64.05 56.18 46.82 42.87 52.94
196442.82 42.52 45.13 47.60 53.69 58.95 63.74 62.84 58.68 54.47 43.42 37.58 50.95
196540.63 42.66 45.81 50.48 53.39 61.28 66.48 65.92 58.43 56.31 49.95 41.10 52.70
196641.74 43.39 46.08 50.25 54.56 60.03 63.74 65.61 62.98 53.53 47.10 45.73 52.90
196743.44 44.12 43.42 47.22 56.18 64.80 66.82 70.35 65.37 55.03 47.42 41.74 53.83
196840.61 47.81 48.19 48.50 56.29 59.88 66.87 63.52 59.73 52.44 47.00 37.89 52.39
196933.42 42.04 46.53 50.38 59.00 65.57 64.50 63.53 60.60 52.95 46.67 44.76 52.50
197041.55 46.61 47.63 49.63 54.55 -----z-----z-----z-----z-----z-----z-----z47.99g
Period of Record Statistics
MEAN39.85 43.47 45.23 50.23 56.04 60.97 65.17 64.98 60.87 53.62 46.04 42.30 52.44
S.D.4.45 2.68 1.70 1.86 2.39 2.20 2.19 1.85 1.95 1.70 2.25 2.53 1.15
SKEW-0.92 0.24 -0.33 0.15 0.51 0.81 0.57 1.17 0.81 0.06 0.49 -0.16 0.51
MAX46.95 49.11 48.55 54.85 61.97 65.93 71.50 70.35 65.37 57.35 51.00 46.71 55.72
MIN27.24 37.76 41.34 47.05 52.53 58.17 61.05 62.40 58.43 50.34 41.23 37.58 50.19
YRS31 27 29 30 31 28 26 28 28 29 29 29 24