Normal weather on 21 August in Duncannon
The weather on 21 August in Duncannon has an average temperature of about 30°C during the day. The maximum temperature can reach up to 33°C, while the minimum temperature can be 25°C.
On average, 7 mm of rain falls in Duncannon on 21 August. The wind speed is 3 Beaufort and mainly comes from Southwest.
21 August Averages for Duncannon
 Average temperature | 30°C |
 Highest daytime temperature | 33°C |
| Lowest daytime temperature | 25°C |
 Total rainfall | 7 mm |
| Rainy days | 1 day |
Temperature on 21 August in Duncannon per Year
This graph shows the measured temperature on 21 August in Duncannon per year, measured in degrees Celsius, over the past years.
Precipitation on 21 August in Duncannon per Year
This graph shows the total measured precipitation in millimeters on 21 August in Duncannon per year over the past years.
Average weather in Duncannon per month
Click on a month below to see in detail how the weather typically is in Duncannon and what to expect. Based on the historical weather data of Duncannon, you can view the average temperature, precipitation, wind, and UV index for each day of the month.