Climate LabSeattle, United States

Climate Lab·

Monthly climate metrics across temperature, precipitation, wind, and UV.

MetricJanFebMarAprMayJunJulAugSepOctNovDecYear
Temperature
Daily high°C
10
10
12
15
19
23
26
26
22
17
12
10
17
Daily mean°C
7
7
8
11
13
17
21
20
17
13
8
7
12
Daily low°C
2
2
4
7
10
13
16
15
13
8
5
3
8
Thermal comfort
High feels°C
10
12
16
19
23
26
31
31
26
22
12
9
20
Mean feels°C
1
1
5
10
15
18
25
24
17
11
3
0
11
Low feels°C
-9
-7
-5
0
3
11
16
14
9
2
-4
-6
2
Humidity
Humidity%
86
82
75
70
70
65
64
66
73
82
85
87
75
Dewpoint°C
4.2
3.2
3.2
4.8
7.9
10.9
13.6
14.1
11.8
9.4
5.6
4.4
7.7
Precipitation
Rainfallmm
229
149
101
84
95
82
15
23
44
121
275
197
1415
Rain days≥1mm
20
18
17
18
15
12
2
7
9
13
20
20
171
Snowfallmm
0
1
0
0
0
0
0
0
0
0
0
0
1
Snow days≥1mm
0
1
0
0
0
0
0
0
0
0
0
0
1
Wind
Wind avgm/s
2.3
2.2
2.3
2.3
2.2
2.2
2.0
2.0
2.1
2.1
2.2
2.7
2.2
Wind gustsm/s
5.8
6.5
5.2
5.3
4.9
4.6
3.5
4.2
4.3
5.7
5.9
6.1
5.2
Sun & UV
Sunshinehrs/day
4.0
6.2
8.0
9.3
9.6
10.7
12.9
11.6
9.0
7.1
4.0
2.0
7.9
Clear skyindex
19%
25%
30%
38%
33%
39%
62%
59%
42%
31%
27%
22%
36%
UV indexmax avg
0.6
0.9
2.1
3.3
4.1
5.7
7.2
5.8
3.9
2.0
0.7
0.5
3.1
Based on 2014–2024 hourly climate data · Updated Mar 2025
Confidence: High

How winter feel compares

Compared across United States

Seattle: -4.4 °C. Typical range in United States: -12.9-0.8 °C. Low anchor: Anchorage, -21.6 °C. High anchor: Kailua, 16.7 °C.

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