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 | 5.4 | 7.1 | 12.2 | 17 | 21.4 | 24.9 | 26.6 | 26.1 | 22.9 | 17.9 | 12.6 | 7.4 |
°F | 41.6 | 44.8 | 54 | 62.5 | 70.5 | 76.9 | 79.8 | 79 | 73.3 | 64.2 | 54.7 | 45.3 |
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 | 86 | 92 | 111 | 96 | 111 | 104 | 115 | 105 | 96 | 88 | 86 | 86 |
inches | 3.4 | 3.6 | 4.4 | 3.8 | 4.4 | 4.1 | 4.5 | 4.1 | 3.8 | 3.5 | 3.4 | 3.4 |
Rainy days | 13 | 12 | 13 | 12 | 13 | 12 | 13 | 12 | 10 | 9 | 11 | 12 |
Average annual rainfall in Jefferson: 1130.4mm (445 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 | 5.7 | 6.4 | 7.3 | 8.5 | 8.8 | 9.1 | 8.7 | 8 | 7.5 | 7.3 | 5.9 | 5.4 |
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 | -6.7 | -5.4 | -1 | 3.1 | 7.9 | 12.2 | 14.4 | 13.8 | 10.4 | 4 | -0.4 | -4.5 |
Max °C | 5.7 | 7.4 | 12.6 | 17.3 | 21.7 | 25.3 | 26.9 | 26.4 | 23.3 | 18.2 | 13 | 7.7 |
Min °F | 20 | 22.3 | 30.3 | 37.6 | 46.2 | 53.9 | 57.8 | 56.8 | 50.6 | 39.2 | 31.4 | 23.9 |
Max °F | 31.1 | 33.8 | 42.4 | 50.4 | 58.6 | 65.7 | 69.1 | 68.2 | 62.2 | 52 | 43.3 | 34.9 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 11.3 | 10.5 | 10.5 | 12.4 | 16.7 | 21.9 | 25.3 | 25.9 | 24.3 | 20.5 | 16.4 | 13.2 |
°F | 52.4 | 50.9 | 50.9 | 54.2 | 62 | 71.4 | 77.6 | 78.7 | 75.8 | 68.8 | 61.4 | 55.8 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 15 | 16 | 16 | 15 | 13 | 11 | 10 | 10 | 10 | 12 | 13 | 14 |
mph | 9 | 10 | 10 | 9 | 8 | 7 | 7 | 6 | 7 | 7 | 8 | 9 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
70% | 67% | 64% | 61% | 70% | 74% | 77% | 79% | 78% | 73% | 70% | 71% |
Hottest month: | July | 26.6°C 79.9°F |
---|---|---|
Driest month: | November | 86mm 3.4ins |
Sunniest month: | April | 8.5hrs |
Coldest month: | January | 5.4°C 41.7°F |
Wettest month: | July | 115mm 4.5ins |
Warmest sea: | August | 25.9°C 78.6°F |