Seattle Weather in 2020

Historical record of Seattle, Washington weather for the year 2020 based on NOAA data.
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Year:
2020 Seattle Weather Extremes
Highest temperature 98 °F August 16
Lowest temperature 28 °F December 24
Highest daily low 64 °F August 17
Lowest daily high 36 °F January 14
Most daily precipitation 1.6 inches December 21
Most daily snow 0.5 inches December 21
Total annual precipitation 41.3 inches -
Total annual snow 1.2 inches -
Highest Temperatures in Seattle in 2020
Rank Temperature Date
1 98 °F Aug 16
2 94 °F Jul 27
3 91 °F Sep 10
4 90 °F Jul 30
5 88 °F Sep 9
5 88 °F Aug 17
5 88 °F Aug 15
5 88 °F Jul 26
9 87 °F Jul 20
9 87 °F May 10
Lowest Temperatures in Seattle in 2020
Rank Temperature Date
1 28 °F December 24
1 28 °F January 14
3 30 °F January 13
4 31 °F December 23
4 31 °F December 12
4 31 °F November 29
4 31 °F November 9
4 31 °F February 18
9 32 °F March 15
9 32 °F March 14
9 32 °F February 19
9 32 °F February 4
9 32 °F February 2
9 32 °F January 17
9 32 °F January 15
9 32 °F January 9
January 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
53 46 0.00 0.0
50 41 0.21 0.0
62 46 0.39 0.0
46 40 0.10 0.0
48 42 0.14 0.0
51 41 1.19 0.0
55 46 0.28 0.0
45 33 0.04 0.0
39 32 0.06 0.0
44 35 0.50 0.0
46 39 0.09 0.0
45 33 0.18 0.0
37 30 0.09 0.2
36 28 0.01 0.5
46 32 0.01 0.0
45 35 0.00 0.0
42 32 0.02 0.0
51 39 0.34 0.0
54 44 0.03 0.0
53 44 0.00 0.0
53 45 0.52 0.0
50 44 0.22 0.0
55 49 0.99 0.0
52 48 0.47 0.0
52 46 0.16 0.0
54 47 0.35 0.0
51 43 0.61 0.0
53 46 0.67 0.0
51 45 0.37 0.0
51 42 0.41 0.0
59 51 0.78 0.0
February 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
55 37 1.18 0.0
44 32 0.00 0.0
43 35 0.11 0.0
41 32 0.11 0.0
50 41 0.52 0.0
51 46 0.83 0.0
52 43 0.43 0.0
48 40 0.04 0.0
48 36 0.00 0.0
48 37 0.00 0.0
48 35 0.01 0.0
48 41 0.07 0.0
48 37 0.02 0.0
50 42 0.11 0.0
46 42 0.11 0.0
48 38 0.00 0.0
48 34 0.00 0.0
48 31 0.00 0.0
55 32 0.00 0.0
58 42 0.00 0.0
54 35 0.00 0.0
47 39 0.07 0.0
48 39 0.18 0.0
50 38 0.00 0.0
51 36 0.00 0.0
53 43 0.05 0.0
57 38 0.00 0.0
50 38 0.09 0.0
49 36 0.12 0.0
March 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
47 33 0.00 0.0
48 40 0.01 0.0
53 46 0.18 0.0
52 41 0.00 0.0
56 38 0.23 0.0
43 39 0.48 0.0
45 38 0.04 0.0
49 37 0.00 0.0
50 33 0.00 0.0
51 36 0.00 0.0
51 42 0.07 0.0
52 39 0.00 0.0
43 35 0.38 0.0
44 32 0.00 0.0
46 32 0.00 0.0
55 36 0.00 0.0
54 33 0.00 0.0
56 35 0.00 0.0
61 37 0.00 0.0
62 39 0.00 0.0
56 40 0.00 0.0
58 38 0.00 0.0
51 41 0.10 0.0
50 38 0.04 0.0
49 39 0.18 0.0
49 38 0.00 0.0
50 43 0.02 0.0
54 46 0.32 0.0
55 46 0.58 0.0
50 39 0.51 0.0
50 39 0.03 0.0
April 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
52 39 0.01 0.0
51 37 0.00 0.0
50 37 0.00 0.0
56 35 0.00 0.0
56 44 0.00 0.0
60 39 0.00 0.0
56 40 0.00 0.0
63 39 0.00 0.0
69 42 0.00 0.0
64 44 0.00 0.0
60 44 0.00 0.0
60 37 0.00 0.0
64 38 0.00 0.0
64 42 0.00 0.0
66 49 0.00 0.0
70 44 0.00 0.0
71 44 0.00 0.0
57 48 0.05 0.0
65 48 0.00 0.0
67 45 0.00 0.0
58 47 0.00 0.0
54 49 0.50 0.0
59 48 0.30 0.0
60 47 0.00 0.0
62 49 0.59 0.0
62 45 0.12 0.0
63 48 0.09 0.0
63 45 0.00 0.0
70 49 0.04 0.0
58 47 0.00 0.0
May 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
66 43 0.00 0.0
58 47 0.24 0.0
57 44 0.06 0.0
65 39 0.00 0.0
71 49 0.00 0.0
62 48 0.11 0.0
68 44 0.00 0.0
80 50 0.00 0.0
86 62 0.00 0.0
87 62 0.00 0.0
74 54 0.01 0.0
65 50 0.05 0.0
65 52 0.00 0.0
67 50 0.11 0.0
68 52 0.00 0.0
64 54 0.54 0.0
68 53 0.13 0.0
67 50 0.00 0.0
65 52 0.00 0.0
59 51 0.03 0.0
59 47 0.36 0.0
62 47 0.05 0.0
65 48 0.00 0.0
71 50 0.00 0.0
63 55 0.11 0.0
66 52 0.00 0.0
75 48 0.00 0.0
82 57 0.00 0.0
80 58 0.00 0.0
60 50 1.14 0.0
63 49 0.18 0.0
June 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
68 50 0.00 0.0
66 50 0.00 0.0
66 50 0.00 0.0
70 53 0.00 0.0
66 51 0.00 0.0
63 51 0.01 0.0
64 50 0.02 0.0
64 51 0.03 0.0
62 51 0.45 0.0
72 55 0.02 0.0
71 57 0.12 0.0
59 53 0.27 0.0
63 51 0.11 0.0
67 49 0.00 0.0
64 53 0.18 0.0
68 51 0.01 0.0
73 50 0.00 0.0
77 53 0.00 0.0
81 56 0.00 0.0
74 60 0.03 0.0
71 56 0.00 0.0
80 52 0.00 0.0
85 58 0.00 0.0
78 61 0.00 0.0
81 56 0.00 0.0
82 57 0.00 0.0
64 56 0.56 0.0
71 52 0.34 0.0
72 54 0.00 0.0
66 54 0.13 0.0
July 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
66 54 0.01 0.0
67 55 0.00 0.0
66 55 0.00 0.0
71 54 0.00 0.0
74 55 0.00 0.0
72 56 0.00 0.0
70 56 0.00 0.0
73 56 0.00 0.0
72 58 0.01 0.0
73 54 0.00 0.0
70 54 0.00 0.0
72 59 0.00 0.0
76 55 0.00 0.0
81 54 0.00 0.0
84 57 0.00 0.0
77 58 0.00 0.0
72 58 0.13 0.0
80 57 0.00 0.0
84 59 0.00 0.0
87 62 0.00 0.0
81 62 0.00 0.0
73 59 0.02 0.0
69 58 0.00 0.0
72 56 0.00 0.0
78 56 0.00 0.0
88 59 0.00 0.0
94 63 0.00 0.0
81 58 0.00 0.0
86 56 0.00 0.0
90 61 0.00 0.0
83 60 0.00 0.0
August 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
76 58 0.00 0.0
82 57 0.00 0.0
82 60 0.00 0.0
84 61 0.00 0.0
81 59 0.00 0.0
73 58 0.08 0.0
75 58 0.00 0.0
69 58 0.01 0.0
77 53 0.00 0.0
82 56 0.00 0.0
76 57 0.00 0.0
71 55 0.00 0.0
75 52 0.00 0.0
81 55 0.00 0.0
88 61 0.00 0.0
98 63 0.00 0.0
88 64 0.00 0.0
81 61 0.00 0.0
83 59 0.00 0.0
80 62 0.08 0.0
71 60 0.11 0.0
75 58 0.01 0.0
77 55 0.00 0.0
76 56 0.00 0.0
78 54 0.00 0.0
78 57 0.00 0.0
81 55 0.00 0.0
78 58 0.00 0.0
70 55 0.00 0.0
73 51 0.00 0.0
71 54 0.02 0.0
September 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
81 56 0.00 0.0
81 57 0.00 0.0
84 56 0.00 0.0
83 59 0.00 0.0
75 59 0.00 0.0
81 56 0.00 0.0
84 61 0.00 0.0
83 63 0.00 0.0
88 59 0.00 0.0
91 61 0.00 0.0
73 53 0.00 0.0
61 51 0.00 0.0
64 50 0.00 0.0
69 55 0.05 0.0
75 61 0.01 0.0
71 59 0.00 0.0
74 59 0.00 0.0
66 60 0.29 0.0
72 59 0.04 0.0
71 58 0.07 0.0
70 54 0.00 0.0
73 59 0.11 0.0
63 58 1.08 0.0
66 57 0.08 0.0
63 55 0.75 0.0
65 53 0.00 0.0
70 53 0.00 0.0
76 52 0.00 0.0
80 54 0.00 0.0
76 55 0.00 0.0
October 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
72 54 0.00 0.0
73 54 0.00 0.0
58 54 0.00 0.0
59 54 0.00 0.0
68 55 0.00 0.0
73 54 0.00 0.0
61 56 0.00 0.0
67 56 0.00 0.0
68 57 0.52 0.0
62 52 0.49 0.0
59 50 0.61 0.0
62 52 0.00 0.0
63 49 0.57 0.0
63 51 0.00 0.0
60 46 0.00 0.0
62 51 0.07 0.0
57 51 0.03 0.0
63 52 0.01 0.0
59 50 0.06 0.0
59 47 0.00 0.0
53 42 0.05 0.0
54 40 0.00 0.0
51 39 0.11 0.0
50 40 0.00 0.0
49 34 0.00 0.0
52 35 0.00 0.0
57 45 0.00 0.0
55 47 0.00 0.0
59 47 0.02 0.0
60 47 0.04 0.0
57 41 0.00 0.0
November 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
61 42 0.00 0.0
65 41 0.00 0.0
58 46 0.90 0.0
66 58 0.18 0.0
60 46 0.32 0.0
51 39 0.00 0.0
44 36 0.01 0.0
49 33 0.00 0.0
43 31 0.06 0.0
46 38 0.04 0.0
46 37 0.00 0.0
49 40 0.38 0.0
52 43 0.49 0.0
48 41 0.56 0.0
53 46 0.20 0.0
51 46 0.49 0.0
63 47 0.53 0.0
49 44 0.39 0.0
48 42 0.16 0.0
50 43 0.01 0.0
54 41 0.02 0.0
45 36 0.11 0.0
47 42 0.12 0.0
52 43 0.13 0.0
48 43 0.03 0.0
50 43 0.00 0.0
51 44 0.00 0.0
48 36 0.02 0.0
45 31 0.00 0.0
51 39 0.43 0.0
December 2020 Seattle Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
49 36 0.00 0.0
60 38 0.00 0.0
50 37 0.00 0.0
54 36 0.00 0.0
58 35 0.00 0.0
54 43 0.03 0.0
52 43 0.00 0.0
52 48 0.73 0.0
50 40 0.17 0.0
44 37 0.04 0.0
47 37 0.00 0.0
45 31 0.00 0.0
45 39 0.20 0.0
50 43 0.10 0.0
48 42 0.42 0.0
50 45 0.49 0.0
50 44 0.07 0.0
52 44 0.19 0.0
53 46 0.45 0.0
54 47 0.06 0.0
59 34 1.64 0.5
46 34 0.00 0.0
43 31 0.00 0.0
44 28 0.00 0.0
49 35 0.34 0.0
50 42 0.11 0.0
49 39 0.13 0.0
47 33 0.00 0.0
41 34 0.16 0.0
50 40 0.97 0.0
50 46 0.35 0.0
Weather Station Details
Years Station Coordinates
1948–2024 Seattle Tacoma International Airport location
1894–1947 University of Washington location