The bar chart below shows the average monthly peak daytime temperatures at Grand Haven
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -1.3 | -0.1 | 5.9 | 13.1 | 19.6 | 24.5 | 27 | 26 | 22.4 | 15.9 | 8.5 | 1.5 |
°F | 29.7 | 31.9 | 42.7 | 55.6 | 67.3 | 76 | 80.7 | 78.9 | 72.3 | 60.6 | 47.2 | 34.6 |
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 | 54 | 34 | 58 | 73 | 68 | 66 | 60 | 84 | 97 | 70 | 77 | 71 |
inches | 2.1 | 1.3 | 2.3 | 2.9 | 2.7 | 2.6 | 2.4 | 3.3 | 3.8 | 2.8 | 3 | 2.8 |
Rainy days | 18 | 13 | 13 | 12 | 10 | 10 | 9 | 9 | 10 | 11 | 14 | 17 |
Average annual rainfall in Grand Haven: 768.733mm (302.7 inches)
The bar chart below shows the average daily sunshine hours in Grand Haven
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 3.9 | 5 | 6.2 | 7.7 | 9.3 | 10.6 | 10.7 | 9.5 | 7.6 | 5.7 | 3.4 | 2.9 |
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 | -7.7 | -7.5 | -3 | 2.5 | 7.7 | 12.7 | 15.9 | 15.3 | 11.6 | 6.1 | 1 | -4.6 |
Max °C | -1.1 | 0.1 | 6.2 | 13.4 | 19.9 | 24.8 | 27.3 | 26.3 | 22.7 | 16.1 | 8.7 | 1.6 |
Min °F | 18.1 | 18.5 | 26.7 | 36.4 | 45.9 | 54.8 | 60.6 | 59.5 | 52.8 | 43 | 33.7 | 23.7 |
Max °F | 24.1 | 25.3 | 34.9 | 46.2 | 56.8 | 65.7 | 70.9 | 69.4 | 62.8 | 52 | 40.6 | 29.3 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 3.7 | 2.9 | 2.7 | 3.4 | 5.5 | 11.2 | 18.5 | 21.4 | 19.2 | 13.6 | 8.5 | 5.2 |
°F | 38.6 | 37.3 | 36.9 | 38.1 | 41.9 | 52.1 | 65.3 | 70.5 | 66.6 | 56.4 | 47.4 | 41.3 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 21 | 19 | 20 | 20 | 17 | 16 | 15 | 14 | 16 | 18 | 20 | 20 |
mph | 13 | 12 | 13 | 13 | 11 | 10 | 9 | 9 | 10 | 11 | 12 | 13 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
78% | 75% | 71% | 66% | 65% | 68% | 71% | 75% | 76% | 74% | 75% | 79% |
Hottest month: | July | 27°C 80.6°F |
---|---|---|
Driest month: | February | 34mm 1.3ins |
Sunniest month: | July | 10.7hrs |
Coldest month: | January | -1.3°C 29.7°F |
Wettest month: | September | 97mm 3.8ins |
Warmest sea: | August | 21.4°C 70.5°F |