The bar chart below shows the average monthly peak daytime temperatures at Lewiston
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -1.9 | -0.3 | 4.8 | 11.2 | 18.2 | 23.5 | 26.5 | 25.3 | 20.6 | 14.5 | 7.3 | 0.2 |
°F | 28.5 | 31.4 | 40.6 | 52.2 | 64.7 | 74.2 | 79.8 | 77.6 | 69.1 | 58.2 | 45.1 | 32.4 |
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 | 91 | 88 | 106 | 103 | 93 | 92 | 86 | 83 | 80 | 99 | 127 | 116 |
inches | 3.6 | 3.4 | 4.2 | 4.1 | 3.6 | 3.6 | 3.4 | 3.3 | 3.1 | 3.9 | 5 | 4.6 |
Rainy days | 11 | 9 | 11 | 12 | 12 | 12 | 11 | 11 | 9 | 10 | 12 | 13 |
Average annual rainfall in Lewiston: 1136.933mm (447.6 inches)
The bar chart below shows the average daily sunshine hours in Lewiston
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 5.1 | 5.9 | 6.4 | 7.1 | 8 | 8.8 | 9.3 | 8.7 | 7.5 | 6.2 | 4.4 | 4.3 |
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 | -12.1 | -11 | -4.8 | 0.9 | 6.8 | 12.1 | 15.4 | 14.6 | 10 | 4.2 | -0.9 | -8.3 |
Max °C | -1.7 | -0 | 5 | 11.5 | 18.5 | 23.8 | 26.8 | 25.6 | 20.9 | 14.8 | 7.5 | 0.5 |
Min °F | 10.2 | 12.3 | 23.4 | 33.6 | 44.2 | 53.7 | 59.7 | 58.3 | 49.9 | 39.6 | 30.5 | 17.2 |
Max °F | 19.6 | 22.1 | 32.2 | 43.2 | 54.7 | 64.2 | 70 | 68.2 | 59.7 | 49.1 | 37.9 | 25 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 4.9 | 3.5 | 3.1 | 4.5 | 7.9 | 12.2 | 15.9 | 16.9 | 15 | 11.9 | 9 | 6.8 |
°F | 40.8 | 38.3 | 37.6 | 40.1 | 46.2 | 53.9 | 60.6 | 62.4 | 59 | 53.4 | 48.3 | 44.2 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 15 | 15 | 16 | 16 | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 14 |
mph | 9 | 9 | 10 | 10 | 9 | 8 | 7 | 7 | 8 | 8 | 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
68% | 67% | 67% | 67% | 70% | 74% | 75% | 77% | 78% | 75% | 75% | 72% |
Hottest month: | July | 26.5°C 79.7°F |
---|---|---|
Driest month: | September | 80mm 3.1ins |
Sunniest month: | August | 8.7hrs |
Coldest month: | January | -1.9°C 28.6°F |
Wettest month: | November | 127mm 5ins |
Warmest sea: | August | 16.9°C 62.4°F |