The bar chart below shows the average monthly peak daytime temperatures at Rockville
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 1.4 | 4.2 | 11.2 | 18.3 | 24 | 28.8 | 30.3 | 29.2 | 25.9 | 19.5 | 11.7 | 4.1 |
°F | 34.5 | 39.6 | 52.2 | 64.9 | 75.2 | 83.8 | 86.6 | 84.6 | 78.7 | 67.2 | 53.1 | 39.3 |
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 | 64 | 56 | 92 | 107 | 113 | 103 | 121 | 95 | 81 | 71 | 96 | 88 |
inches | 2.5 | 2.2 | 3.6 | 4.2 | 4.4 | 4 | 4.8 | 3.7 | 3.2 | 2.8 | 3.8 | 3.5 |
Rainy days | 11 | 10 | 13 | 12 | 11 | 9 | 9 | 9 | 8 | 8 | 10 | 12 |
Average annual rainfall in Rockville: 1038.1mm (408.7 inches)
The bar chart below shows the average daily sunshine hours in Rockville
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 5 | 5.7 | 6.5 | 7.9 | 9.5 | 10.8 | 10.7 | 9.9 | 8.6 | 7.2 | 4.6 | 4 |
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 | -8.5 | -6.3 | -0.1 | 5.4 | 10.7 | 15.7 | 18 | 16.7 | 13 | 6.6 | 1.5 | -4.9 |
Max °C | 1.7 | 4.5 | 11.5 | 18.6 | 24.3 | 29.1 | 30.7 | 29.5 | 26.3 | 19.9 | 12 | 4.3 |
Min °F | 16.8 | 20.7 | 31.8 | 41.7 | 51.3 | 60.3 | 64.3 | 62.1 | 55.3 | 43.8 | 34.6 | 23.2 |
Max °F | 25.9 | 30.4 | 42.3 | 53.6 | 63.5 | 72.3 | 75.7 | 73.6 | 67.3 | 55.8 | 44.1 | 31.5 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 7.9 | 7.2 | 7.3 | 8.6 | 11.2 | 15.8 | 20.8 | 23.1 | 21.3 | 16.6 | 12.4 | 9.5 |
°F | 46.2 | 44.9 | 45.2 | 47.5 | 52.1 | 60.4 | 69.5 | 73.6 | 70.4 | 61.8 | 54.3 | 49.1 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 18 | 18 | 19 | 19 | 16 | 14 | 13 | 12 | 13 | 15 | 17 | 18 |
mph | 11 | 11 | 12 | 12 | 10 | 9 | 8 | 8 | 8 | 9 | 11 | 11 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
74% | 73% | 70% | 66% | 67% | 67% | 71% | 74% | 73% | 70% | 74% | 77% |
Hottest month: | July | 30.3°C 86.5°F |
---|---|---|
Driest month: | February | 56mm 2.2ins |
Sunniest month: | July | 10.7hrs |
Coldest month: | January | 1.4°C 34.5°F |
Wettest month: | July | 121mm 4.8ins |
Warmest sea: | August | 23.1°C 73.6°F |