The bar chart below shows the average monthly peak daytime temperatures at Grand Rapids
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -8 | -3.8 | 3.3 | 12.4 | 20 | 24.4 | 27.1 | 25.4 | 19.8 | 13.4 | 2.8 | -5.8 |
°F | 17.6 | 25.2 | 37.9 | 54.3 | 68 | 75.9 | 80.7 | 77.8 | 67.7 | 56.1 | 37 | 21.6 |
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 | 21 | 14 | 32 | 53 | 79 | 105 | 107 | 92 | 85 | 59 | 33 | 25 |
inches | 0.8 | 0.6 | 1.3 | 2.1 | 3.1 | 4.1 | 4.2 | 3.6 | 3.3 | 2.3 | 1.3 | 1 |
Rainy days | 11 | 9 | 10 | 10 | 12 | 12 | 11 | 11 | 11 | 9 | 10 | 11 |
Average annual rainfall in Grand Rapids: 658.667mm (259.3 inches)
The bar chart below shows the average daily sunshine hours in Grand Rapids
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 4.6 | 5.7 | 6.5 | 8.2 | 9.3 | 10 | 11 | 9.5 | 7.1 | 5.2 | 3.5 | 3.5 |
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 | -20.3 | -17.2 | -9.4 | -1.5 | 5.1 | 10.3 | 13.4 | 12.1 | 7.3 | 1.8 | -6.4 | -16.1 |
Max °C | -7.7 | -3.5 | 3.6 | 12.7 | 20.4 | 24.8 | 27.4 | 25.8 | 20.2 | 13.7 | 3 | -5.6 |
Min °F | -4.5 | 1.1 | 15.1 | 29.3 | 41.1 | 50.5 | 56.1 | 53.7 | 45.1 | 35.2 | 20.5 | 3.1 |
Max °F | 6.8 | 13.5 | 26.8 | 42.1 | 54.9 | 63.5 | 68.7 | 66 | 56.7 | 45.9 | 28.9 | 12.6 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 5.2 | 5 | 5.4 | 6.2 | 7.5 | 9.5 | 12.3 | 15.8 | 14.8 | 11.1 | 8 | 6.1 |
°F | 41.4 | 41 | 41.6 | 43.2 | 45.5 | 49.1 | 54.1 | 60.5 | 58.6 | 52 | 46.4 | 42.9 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 17 | 17 | 18 | 19 | 18 | 16 | 15 | 15 | 16 | 17 | 17 | 17 |
mph | 11 | 10 | 11 | 12 | 11 | 10 | 9 | 9 | 10 | 11 | 11 | 10 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
71% | 68% | 68% | 63% | 61% | 68% | 70% | 73% | 75% | 71% | 76% | 76% |
Hottest month: | July | 27.1°C 80.8°F |
---|---|---|
Driest month: | February | 14mm 0.6ins |
Sunniest month: | July | 11hrs |
Coldest month: | January | -8°C 17.6°F |
Wettest month: | July | 107mm 4.2ins |
Warmest sea: | August | 15.8°C 60.4°F |