The bar chart below shows the average monthly peak daytime temperatures at Iowa City
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -2.2 | 1 | 8 | 16.4 | 22.8 | 27.8 | 30 | 28.5 | 24.3 | 18.1 | 8.9 | 0.4 |
°F | 28 | 33.7 | 46.5 | 61.5 | 73 | 82 | 86 | 83.2 | 75.7 | 64.5 | 48 | 32.8 |
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 | 28 | 24 | 58 | 85 | 95 | 109 | 102 | 102 | 95 | 62 | 51 | 42 |
inches | 1.1 | 0.9 | 2.3 | 3.4 | 3.8 | 4.3 | 4 | 4 | 3.7 | 2.4 | 2 | 1.6 |
Rainy days | 8 | 8 | 10 | 11 | 12 | 10 | 10 | 9 | 9 | 8 | 9 | 9 |
Average annual rainfall in Iowa City: 802.7mm (316 inches)
The bar chart below shows the average daily sunshine hours in Iowa City
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 5.6 | 6.8 | 7.1 | 8.1 | 9.7 | 10.8 | 11 | 10 | 8.3 | 7.3 | 5 | 4.6 |
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 | -11.8 | -9 | -2.3 | 4.3 | 10.5 | 15.7 | 18.3 | 16.7 | 12.2 | 5.9 | -1 | -8.5 |
Max °C | -2 | 1.2 | 8.3 | 16.7 | 23.1 | 28.1 | 30.3 | 28.8 | 24.6 | 18.4 | 9.2 | 0.7 |
Min °F | 10.8 | 15.8 | 27.9 | 39.7 | 50.9 | 60.3 | 64.9 | 62 | 54 | 42.5 | 30.3 | 16.8 |
Max °F | 19.6 | 25 | 37.4 | 50.9 | 62.2 | 71.4 | 75.7 | 72.9 | 65.1 | 53.8 | 39.4 | 25 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.4 | 8.1 | 8.5 | 9.7 | 11.5 | 13.8 | 16.9 | 20.1 | 18.9 | 14.9 | 11.8 | 9.7 |
°F | 47.2 | 46.6 | 47.3 | 49.4 | 52.7 | 56.9 | 62.4 | 68.2 | 66 | 58.9 | 53.2 | 49.4 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 19 | 19 | 21 | 21 | 18 | 16 | 14 | 14 | 15 | 17 | 18 | 19 |
mph | 12 | 12 | 13 | 13 | 11 | 10 | 9 | 9 | 9 | 11 | 11 | 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% | 72% | 70% | 65% | 66% | 67% | 71% | 73% | 73% | 69% | 73% | 76% |
Hottest month: | July | 30°C 86°F |
---|---|---|
Driest month: | February | 24mm 0.9ins |
Sunniest month: | July | 11hrs |
Coldest month: | January | -2.2°C 28°F |
Wettest month: | June | 109mm 4.3ins |
Warmest sea: | August | 20.1°C 68.2°F |