The bar chart below shows the average monthly peak daytime temperatures at Johnstown
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -3.4 | -2 | 3.7 | 11.3 | 18.4 | 23 | 25.5 | 24.2 | 19.7 | 13.8 | 6.1 | -0.9 |
°F | 25.9 | 28.4 | 38.7 | 52.3 | 65.1 | 73.4 | 77.9 | 75.6 | 67.4 | 56.9 | 43 | 30.4 |
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 | 74 | 68 | 85 | 92 | 103 | 105 | 97 | 103 | 101 | 89 | 101 | 91 |
inches | 2.9 | 2.7 | 3.3 | 3.6 | 4 | 4.1 | 3.8 | 4.1 | 4 | 3.5 | 4 | 3.6 |
Rainy days | 15 | 13 | 14 | 13 | 14 | 13 | 11 | 12 | 11 | 11 | 15 | 16 |
Average annual rainfall in Johnstown: 1076.466mm (423.8 inches)
The bar chart below shows the average daily sunshine hours in Johnstown
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 4.5 | 5.6 | 6.4 | 7.3 | 8.3 | 9.1 | 9.7 | 8.5 | 7.1 | 5.6 | 3.4 | 3.3 |
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 | -14.1 | -13.5 | -7.4 | -0.8 | 5.5 | 10.7 | 13.2 | 12.3 | 7.9 | 1.9 | -3 | -10 |
Max °C | -3.2 | -1.7 | 4 | 11.6 | 18.7 | 23.3 | 25.8 | 24.5 | 20 | 14.1 | 6.4 | -0.7 |
Min °F | 6.7 | 7.7 | 18.7 | 30.6 | 41.9 | 51.3 | 55.8 | 54.1 | 46.1 | 35.4 | 26.7 | 14.1 |
Max °F | 16.5 | 18.3 | 28.9 | 41.7 | 53.8 | 62.6 | 67.1 | 65.1 | 57 | 46.4 | 35.1 | 22.5 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 4.1 | 3 | 2.8 | 4.1 | 7.3 | 13.1 | 18.4 | 20 | 17.8 | 13.4 | 9.3 | 6.1 |
°F | 39.4 | 37.4 | 37.1 | 39.3 | 45.1 | 55.6 | 65.2 | 68 | 64.1 | 56.2 | 48.8 | 42.9 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 17 | 17 | 18 | 18 | 16 | 14 | 13 | 13 | 14 | 15 | 17 | 17 |
mph | 11 | 11 | 11 | 11 | 10 | 9 | 8 | 8 | 9 | 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
72% | 70% | 66% | 62% | 66% | 70% | 71% | 74% | 76% | 73% | 74% | 76% |
Hottest month: | July | 25.5°C 77.9°F |
---|---|---|
Driest month: | February | 68mm 2.7ins |
Sunniest month: | July | 9.7hrs |
Coldest month: | January | -3.4°C 25.9°F |
Wettest month: | June | 105mm 4.1ins |
Warmest sea: | August | 20°C 68°F |