The bar chart below shows the average monthly peak daytime temperatures at Sammamish
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 6.7 | 9.5 | 11.1 | 13.6 | 17.2 | 20.3 | 23.1 | 23.1 | 20 | 15.1 | 9.9 | 7.1 |
°F | 44.1 | 49 | 52 | 56.5 | 62.9 | 68.5 | 73.6 | 73.5 | 68.1 | 59.2 | 49.8 | 44.7 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 180 | 128 | 123 | 92 | 68 | 59 | 30 | 41 | 66 | 108 | 177 | 186 |
inches | 7.1 | 5.1 | 4.8 | 3.6 | 2.7 | 2.3 | 1.2 | 1.6 | 2.6 | 4.3 | 7 | 7.3 |
Rainy days | 17 | 15 | 16 | 13 | 10 | 8 | 5 | 6 | 9 | 12 | 17 | 18 |
Average annual rainfall in Sammamish: 1182.5mm (465.6 inches)
The bar chart below shows the average daily sunshine hours in Sammamish
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 2.5 | 4.1 | 5.9 | 7.2 | 8.6 | 9.4 | 10.8 | 9.8 | 7.8 | 5.1 | 2.7 | 2 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | 1 | 2.2 | 2.7 | 4.4 | 7 | 10.1 | 11.8 | 11.9 | 9.7 | 6.5 | 3.6 | 1.6 |
Max °C | 6.9 | 9.7 | 11.3 | 13.9 | 17.4 | 20.6 | 23.4 | 23.4 | 20.3 | 15.4 | 10.1 | 7.2 |
Min °F | 33.7 | 35.9 | 36.9 | 39.8 | 44.6 | 50.1 | 53.2 | 53.3 | 49.5 | 43.6 | 38.4 | 34.9 |
Max °F | 39 | 42.6 | 44.6 | 48.4 | 54 | 59.5 | 63.7 | 63.7 | 59 | 51.6 | 44.2 | 39.9 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.1 | 8 | 8.3 | 9.1 | 10.5 | 12 | 13.1 | 13.4 | 12.8 | 11.2 | 9.7 | 8.6 |
°F | 46.5 | 46.4 | 47 | 48.4 | 50.9 | 53.6 | 55.5 | 56.2 | 55.1 | 52.1 | 49.5 | 47.5 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 14 |
mph | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 9 | 9 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
79% | 76% | 73% | 69% | 67% | 66% | 64% | 67% | 72% | 78% | 80% | 81% |
Hottest month: | July | 23.1°C 73.6°F |
---|---|---|
Driest month: | July | 30mm 1.2ins |
Sunniest month: | July | 10.8hrs |
Coldest month: | January | 6.7°C 44.1°F |
Wettest month: | December | 186mm 7.3ins |
Warmest sea: | August | 13.4°C 56.1°F |