The bar chart below shows the average monthly peak daytime temperatures at Wheaton
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -7.9 | -4.8 | 2.4 | 12.4 | 20.3 | 25.6 | 28.6 | 27.5 | 21.4 | 14.9 | 3.9 | -5 |
°F | 17.7 | 23.4 | 36.4 | 54.3 | 68.5 | 78 | 83.4 | 81.5 | 70.6 | 58.8 | 39.1 | 23 |
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 | 15 | 13 | 29 | 56 | 71 | 93 | 83 | 74 | 54 | 45 | 23 | 15 |
inches | 0.6 | 0.5 | 1.1 | 2.2 | 2.8 | 3.6 | 3.3 | 2.9 | 2.1 | 1.8 | 0.9 | 0.6 |
Rainy days | 8 | 7 | 8 | 9 | 10 | 11 | 9 | 9 | 8 | 7 | 6 | 8 |
Average annual rainfall in Wheaton: 518.733mm (204.2 inches)
The bar chart below shows the average daily sunshine hours in Wheaton
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 5.6 | 6.4 | 7.5 | 8.7 | 10 | 11.2 | 12.2 | 10.9 | 8.6 | 6.7 | 4.6 | 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 | -19.2 | -15.9 | -7.9 | 0.1 | 6.8 | 12.5 | 15.1 | 13.8 | 7.9 | 1.8 | -6.4 | -15.1 |
Max °C | -7.7 | -4.5 | 2.7 | 12.7 | 20.6 | 25.9 | 28.9 | 27.9 | 21.8 | 15.2 | 4.2 | -4.8 |
Min °F | -2.5 | 3.4 | 17.8 | 32.2 | 44.2 | 54.5 | 59.2 | 56.8 | 46.1 | 35.2 | 20.5 | 4.9 |
Max °F | 7.9 | 13.6 | 27.3 | 43.5 | 56.7 | 66.6 | 71.6 | 69.4 | 58.6 | 47.3 | 30 | 14.2 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 6.8 | 6.6 | 7 | 7.9 | 9.3 | 11.4 | 14.1 | 17 | 15.9 | 12.5 | 9.6 | 7.7 |
°F | 44.3 | 44 | 44.6 | 46.3 | 48.8 | 52.5 | 57.3 | 62.6 | 60.6 | 54.5 | 49.2 | 45.8 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 20 | 19 | 21 | 22 | 21 | 19 | 17 | 17 | 18 | 19 | 19 | 19 |
mph | 12 | 12 | 13 | 14 | 13 | 12 | 11 | 11 | 11 | 12 | 12 | 12 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
72% | 73% | 73% | 66% | 62% | 67% | 67% | 68% | 70% | 68% | 75% | 76% |
Hottest month: | July | 28.6°C 83.5°F |
---|---|---|
Driest month: | February | 13mm 0.5ins |
Sunniest month: | July | 12.2hrs |
Coldest month: | January | -7.9°C 17.8°F |
Wettest month: | June | 93mm 3.7ins |
Warmest sea: | August | 17°C 62.6°F |