The bar chart below shows the average monthly peak daytime temperatures at Jefferson
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -2.9 | 0.2 | 7.4 | 15.9 | 22.6 | 27.7 | 29.8 | 28.1 | 23.7 | 17.5 | 7.9 | -0.7 |
°F | 26.8 | 32.4 | 45.3 | 60.7 | 72.7 | 81.9 | 85.6 | 82.6 | 74.7 | 63.5 | 46.3 | 30.8 |
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 | 20 | 22 | 53 | 78 | 104 | 120 | 110 | 106 | 94 | 62 | 39 | 27 |
inches | 0.8 | 0.9 | 2.1 | 3.1 | 4.1 | 4.7 | 4.3 | 4.2 | 3.7 | 2.4 | 1.5 | 1.1 |
Rainy days | 7 | 7 | 10 | 11 | 12 | 10 | 10 | 9 | 9 | 8 | 7 | 8 |
Average annual rainfall in Jefferson: 781.466mm (307.7 inches)
The bar chart below shows the average daily sunshine hours in Jefferson
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 5.8 | 6.4 | 7.3 | 8.1 | 9.5 | 11.1 | 11.6 | 10.2 | 8.6 | 7.3 | 5.1 | 4.7 |
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 | -13.4 | -10.5 | -3.7 | 3.2 | 9.7 | 15 | 17.6 | 15.8 | 11 | 4.6 | -2.6 | -10.4 |
Max °C | -2.7 | 0.5 | 7.7 | 16.3 | 23 | 28.1 | 30.1 | 28.4 | 24.1 | 17.8 | 8.2 | -0.5 |
Min °F | 8 | 13.1 | 25.4 | 37.7 | 49.4 | 58.9 | 63.6 | 60.4 | 51.7 | 40.3 | 27.3 | 13.4 |
Max °F | 17.6 | 23 | 35.6 | 49.5 | 61.3 | 70.7 | 74.8 | 71.8 | 63.5 | 52.2 | 37 | 22.3 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.6 | 8.3 | 8.8 | 9.9 | 11.6 | 13.9 | 16.5 | 19.3 | 18.1 | 14.6 | 11.6 | 9.6 |
°F | 47.4 | 47 | 47.8 | 49.9 | 52.9 | 57 | 61.7 | 66.7 | 64.6 | 58.4 | 52.9 | 49.3 |
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 | 22 | 19 | 17 | 16 | 15 | 16 | 18 | 19 | 19 |
mph | 12 | 12 | 13 | 14 | 12 | 11 | 10 | 9 | 10 | 11 | 12 | 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% | 69% | 63% | 63% | 66% | 69% | 71% | 72% | 67% | 72% | 76% |
Hottest month: | July | 29.8°C 85.6°F |
---|---|---|
Driest month: | January | 20mm 0.8ins |
Sunniest month: | July | 11.6hrs |
Coldest month: | January | -2.9°C 26.8°F |
Wettest month: | June | 120mm 4.7ins |
Warmest sea: | August | 19.3°C 66.7°F |