Monthly climate metrics across temperature, precipitation, wind, and UV.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 feelsDaily high feels-like°C | 10 | 12 | 16 | 19 | 23 | 26 | 31 | 31 | 26 | 22 | 12 | 9 | 20 |
| Mean feelsDaily mean feels-like°C | 1 | 1 | 5 | 10 | 15 | 18 | 25 | 24 | 17 | 11 | 3 | 0 | 11 |
| Low feelsDaily low feels-like°C | -9 | -7 | -5 | 0 | 3 | 11 | 16 | 14 | 9 | 2 | -4 | -6 | 2 |
| Humidity | |||||||||||||
| HumidityRelative 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 |
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.
2,121 cities tracked