The bar chart below shows the average monthly peak daytime temperatures at Bethesda
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 6.9 | 6.9 | 8.6 | 10.9 | 14.1 | 16.7 | 18.3 | 18.2 | 16.3 | 13.6 | 9.6 | 8 |
°F | 44.5 | 44.5 | 47.5 | 51.7 | 57.3 | 62.1 | 64.9 | 64.7 | 61.3 | 56.5 | 49.3 | 46.4 |
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 | 139 | 94 | 109 | 79 | 79 | 82 | 83 | 109 | 121 | 148 | 161 | 157 |
inches | 5.5 | 3.7 | 4.3 | 3.1 | 3.1 | 3.2 | 3.3 | 4.3 | 4.8 | 5.8 | 6.3 | 6.2 |
Rainy days | 21 | 16 | 19 | 15 | 16 | 15 | 14 | 16 | 17 | 20 | 21 | 21 |
Average annual rainfall in Bethesda: 1409.567mm (554.9 inches)
The bar chart below shows the average daily sunshine hours in Bethesda
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 1.5 | 2.8 | 3.6 | 5.4 | 6.7 | 6.7 | 5.8 | 5.6 | 4.5 | 3.3 | 1.9 | 1.3 |
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 | 2.2 | 1.8 | 2.9 | 4.3 | 6.8 | 9.5 | 11.4 | 11.5 | 10 | 7.9 | 4.7 | 3.1 |
Max °C | 7.1 | 7.1 | 8.8 | 11.1 | 14.3 | 16.9 | 18.5 | 18.4 | 16.5 | 13.8 | 9.8 | 8.1 |
Min °F | 35.9 | 35.2 | 37.1 | 39.7 | 44.2 | 49.1 | 52.4 | 52.6 | 49.9 | 46.1 | 40.4 | 37.6 |
Max °F | 40.3 | 39.9 | 42.4 | 45.9 | 50.9 | 55.8 | 58.8 | 58.8 | 55.8 | 51.4 | 45 | 42.1 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.4 | 7.4 | 7.3 | 8.3 | 10.2 | 12.5 | 14.5 | 15.3 | 15.1 | 13.9 | 12.1 | 10.2 |
°F | 47.2 | 45.3 | 45.2 | 46.9 | 50.4 | 54.6 | 58 | 59.6 | 59.2 | 57.1 | 53.9 | 50.4 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 22 | 21 | 21 | 18 | 17 | 17 | 16 | 17 | 19 | 21 | 22 | 22 |
mph | 14 | 13 | 13 | 11 | 11 | 10 | 10 | 11 | 12 | 13 | 14 | 14 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
87% | 86% | 84% | 82% | 80% | 82% | 84% | 84% | 86% | 86% | 87% | 89% |
Hottest month: | July | 18.3°C 64.9°F |
---|---|---|
Driest month: | May | 79mm 3.1ins |
Sunniest month: | May | 6.7hrs |
Coldest month: | February | 6.9°C 44.4°F |
Wettest month: | November | 161mm 6.3ins |
Warmest sea: | August | 15.3°C 59.5°F |