VASHON ISLAND, WA

Average of Average Temperature (Degrees Fahrenheit)

(458802)

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
1891-----z-----z-----z-----z-----z-----z-----z67.98b56.70 53.47 -----z-----z59.38i
1892-----z-----z48.29 48.47 55.88b58.72 62.79 64.45b60.70b49.97 45.45h-----z56.16d
1893-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1894-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1895-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1896-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1897-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
189838.84 44.30 42.87 48.53 54.95 59.32b62.76 64.95 59.72a50.06 43.72 39.41b50.79
1899-----z38.07 42.47 47.15 51.06 56.67 62.95 59.11 -----z50.27 49.70 42.47 49.99b
190042.42 41.00 48.35 50.03 54.61 59.98 62.68 61.23 57.37 49.76 42.88 44.24 51.21
190139.03 40.93 44.52 46.38 53.10a54.42d59.57h62.62o55.73 55.48h46.29m41.50 46.95d
190239.88j43.93f43.85 48.00 55.24b58.60 61.87a62.18 57.03 52.67a45.15 41.08f53.84c
190341.41c39.04 41.50 46.92 53.63a60.45a60.85 62.26 56.84b52.33b45.02 42.00 50.19
190441.37a39.38 41.90 51.37 53.80a58.35 62.97m61.87a60.27q52.94 48.25 43.11 49.23b
190539.77e42.70a48.60 51.17 54.00a59.31a64.12a62.58a59.20 48.32 44.60 41.52 51.32
190642.23 43.23 44.00 52.00 53.98a57.92 66.58 63.34 58.22 52.94 44.85c42.40a51.81
190734.29b41.80a42.32 48.25 56.95 59.75 64.13a61.52 57.05a51.64b47.42 42.35 50.62
190841.53 41.50a44.44 49.02a52.08 58.62 64.34 60.94 54.53 50.08 47.82 39.98 50.41
190934.82a41.71 43.65 47.13 52.06 58.45 60.13 59.53 57.92 50.02 45.08 36.45 48.91
191038.48c38.24a46.68 48.72 54.13 56.13 60.52a58.05 55.53 51.58 44.33 42.24 49.55
191137.69 38.52 44.23 46.00 52.88a56.20 62.31 59.74f55.43 50.44 43.70 40.73 48.01a
191241.26 42.93a42.12a47.07 54.84 58.28 61.15 60.26 56.78 48.31 45.23 40.77a49.92
191336.29 39.21 41.74 48.20 52.82 58.45 61.08 62.66 56.59a49.19 44.83a41.13 49.35
1914-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1915-----z-----z-----z-----z-----z-----z-----z-----z59.97a52.12a42.56f41.02 51.03i
191631.03 41.59b44.52 48.78 51.73 58.15 60.93a63.90 59.48 49.95a40.72a37.61h50.07a
191738.44 39.67b41.58a47.31a52.87a57.62a63.05a66.21 59.88e53.78a50.41a45.48b51.36
191844.57a41.18i48.11m48.95 52.27a60.78 62.37 62.52a62.52 52.12b45.69a40.54c53.23b
191940.48 40.85a44.60 48.68 52.60b56.50a61.82c61.63 58.72 46.95b45.06f34.98f51.28b
192038.75c39.38 43.84 45.53 51.13 57.61c63.45b63.80a57.39b50.26b46.27b42.29b49.98
192140.46c42.29 44.75a46.70c53.85d58.78c60.73 62.42a56.02 52.10e44.32 38.11d50.04
192235.52b38.62c39.87a45.14b51.14c58.64a63.76 62.92 60.22a52.25a42.55 37.10f50.06a
192340.19b37.39 43.52b50.75 54.37 60.23 64.29 65.12a60.78c54.42a47.59c42.27a51.74
192440.72b45.77e43.71 48.48a55.84b59.21b62.86c60.80c58.45b51.15e43.65j37.27a51.30a
192541.93b44.61a45.48d50.11b60.37l-----z-----z-----z-----z-----z43.14w-----z45.53h
192641.95 46.32 49.74 54.97 56.92a61.92 64.85 63.98a57.10 53.97 48.26a40.13 53.34
192739.37d42.25 43.61 48.40 51.77 60.73 63.69 64.35 58.30 52.61 44.48 37.00 50.55
192841.27 42.31 47.69 48.80 56.52 58.92 63.81 61.73 57.62 51.19 45.52 39.79 51.26
192934.21 35.00 44.61 46.05a53.21 57.67 61.69 -----z-----z-----z-----z-----z47.49e
1930-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
193147.75y43.57 45.65a51.66b56.97 58.93a63.43q63.00 58.19c46.71l39.11u39.75a52.21d
193237.30a39.54f44.03p50.02i53.24d60.38d60.98b61.29q57.08r54.56o45.05t41.58y52.98h
193337.84f36.04e43.44e47.80g49.68t58.25x60.07j64.29c55.11u53.37p46.00u-----z47.92i
193443.59h47.17y48.66c52.84h55.56 59.10a61.38k61.29q60.11u52.10f46.81d40.14q52.53h
193539.62f42.86c41.69d47.54b53.71c58.67i61.59d59.84 59.82m45.81b37.37k39.93c49.12d
1936-----z31.89g41.86b51.12b55.70h60.17a61.87a63.64f56.90e-----z44.70h42.09b52.34f
193728.94 39.05h45.63 46.96b53.67d60.15c62.08a60.98 60.20g53.84b46.28c41.89h50.95c
193839.85a41.41a43.64b50.97a54.31b59.88 64.07a60.65 60.66e51.58a42.59b41.53 50.93
193941.76b38.06b43.87 48.37o-----z-----z63.46f63.47 57.91a52.23a48.81d45.27g49.44e
194041.81 44.09b48.31 51.93a56.44 60.77o63.60 63.35 61.43b54.80a41.93 43.28b51.91a
194142.68 45.43 50.62a52.60a55.60a60.09a66.68 63.48a57.37 52.82a47.93a41.74 53.09
194239.85 41.28a45.42 51.43 55.72a58.88 66.58a66.00e59.43c54.17a42.93b42.35a52.00
194333.98b43.85a44.14c51.50d53.55b58.47a63.07a62.52b61.23 50.42r46.42 40.82 50.87a
194440.12a41.72b43.25c50.32 56.29l59.93b66.56g65.48a61.24a55.81 44.94c39.15d50.20b
194542.18l42.59 43.42 47.16a56.45a58.08 63.20a62.15 56.80b51.65h43.58l40.62a52.27c
194640.03b42.37b44.23 48.36a56.95a58.50c63.22b62.21c58.05a46.80f40.35g38.04c51.20b
194736.66i43.69j46.43h49.39h55.47 56.94n-----z60.29q57.06m54.33h45.89h44.17b49.82j
1948-----z-----z-----z-----z-----z62.27 62.66 62.34 56.63c50.60 42.62b36.76 53.41e
194931.95 37.89 45.58 51.29a57.31 58.97 61.77 63.43b60.53a48.95 49.96b39.70a50.61
195027.34 40.79 43.06 47.97 51.93a61.42 63.28a64.44 59.20 50.68a44.63 45.56 50.03
195138.29 41.54 40.47b51.08 54.73 62.48c64.98b62.77 59.66a51.53a45.23 37.45 50.85
195237.61 41.98 43.50a50.20 54.92 57.77 64.13 64.68 61.20 54.31b43.23 42.27 51.32
195345.00 42.07 44.14i48.72 54.69 57.63 63.35 63.95 60.12 54.06 47.28 43.04f53.69b
195436.52h43.86 42.48a47.47 54.89 56.87 59.75a61.11 59.10 50.78a49.07 41.97b51.58a
195540.26 39.85a-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z40.05j
Period of Record Statistics
MEAN38.75 41.27 44.36 49.01 54.21 58.91 62.88 62.76 58.46 51.53 45.59 40.96 50.85
S.D.3.86 2.50 2.39 2.11 1.73 1.60 1.62 1.94 1.88 2.12 2.34 2.19 1.06
SKEW-1.14 -0.29 0.74 0.42 -0.02 -0.10 0.38 0.07 0.09 -0.38 0.21 -0.19 0.53
MAX45.00 46.32 50.62 54.97 57.31 62.48 66.68 67.98 62.52 55.81 50.41 45.56 53.34
MIN27.34 35.00 39.87 45.14 51.06 54.42 59.75 58.05 54.53 45.81 40.72 36.45 48.91
YRS44 47 50 49 49 49 46 48 47 45 41 43 25