The bar chart below shows the average monthly peak daytime temperatures at Heppner
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 4.8 | 8.2 | 11.2 | 14.7 | 19.5 | 24.3 | 28.6 | 28 | 23.3 | 17.1 | 9.5 | 5.1 |
°F | 40.6 | 46.8 | 52.2 | 58.5 | 67.1 | 75.7 | 83.5 | 82.5 | 74 | 62.8 | 49 | 41.2 |
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 | 40 | 30 | 37 | 34 | 35 | 24 | 9 | 17 | 19 | 26 | 45 | 42 |
inches | 1.6 | 1.2 | 1.4 | 1.3 | 1.4 | 0.9 | 0.4 | 0.7 | 0.7 | 1 | 1.8 | 1.7 |
Rainy days | 12 | 10 | 10 | 8 | 7 | 6 | 3 | 4 | 5 | 6 | 11 | 12 |
Average annual rainfall in Heppner: 283.134mm (111.5 inches)
The bar chart below shows the average daily sunshine hours in Heppner
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 2.6 | 4.1 | 6.6 | 8.2 | 10.1 | 11.5 | 13.1 | 11.8 | 9.8 | 7 | 3 | 2.1 |
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 | -4 | -1.9 | -0.1 | 1.6 | 5 | 8.6 | 10.8 | 10.8 | 6.9 | 2.6 | -0.7 | -3.6 |
Max °C | 5 | 8.5 | 11.5 | 15.1 | 19.9 | 24.7 | 29.1 | 28.5 | 23.8 | 17.5 | 9.7 | 5.4 |
Min °F | 24.8 | 28.7 | 31.8 | 34.8 | 40.9 | 47.4 | 51.4 | 51.4 | 44.3 | 36.6 | 30.7 | 25.6 |
Max °F | 32.9 | 37.9 | 42.3 | 46.9 | 54.3 | 61.9 | 67.8 | 67.3 | 59.5 | 50 | 40.1 | 33.6 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.8 | 8.7 | 8.8 | 9 | 9.8 | 11.3 | 12.9 | 13.8 | 13.4 | 12.1 | 10.5 | 9.3 |
°F | 47.9 | 47.7 | 47.8 | 48.3 | 49.7 | 52.3 | 55.2 | 56.8 | 56.1 | 53.7 | 50.9 | 48.7 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 12 | 13 | 15 | 16 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 |
mph | 8 | 8 | 9 | 10 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 7 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
77% | 73% | 62% | 56% | 51% | 47% | 39% | 41% | 50% | 61% | 75% | 79% |
Hottest month: | July | 28.6°C 83.5°F |
---|---|---|
Driest month: | July | 9mm 0.4ins |
Sunniest month: | July | 13.1hrs |
Coldest month: | January | 4.8°C 40.6°F |
Wettest month: | November | 45mm 1.8ins |
Warmest sea: | August | 13.8°C 56.8°F |