Porsgrunn (Ås) observation station
September 2023
Summary
Temperature
September 2023
The temperature varied from 6.0° to 25.9°
Name Value Highest (5 Sep.) Temperature25.9°Lowest (17 Sep.) Temperature6.0°Average Temperature14.5° Normal Temperature12.2° Deviance Temperature2.3° Precipitation
September 2023
The wettest day measured 56.9mm on 19 Sep.
Name Value Total Precipitation 117.3mmNormal Precipitation 104.0mmWettest day (19 Sep.) Precipitation 56.9mmDays with precipitation 10 Wind
September 2023
Strongest gust was 13.2m/s on 21 Sep.
Name Value Highest wind speed (21 Sep.) 5.9m/sStrongest gust (21 Sep.) 13.2m/s
| Date | Min. temp. | Max temp. | Average | Normal temp. | Precip. mm (measured at 07) | Snow depth cm | Wind speed m/s | Highest wind speed m/s |
|---|---|---|---|---|---|---|---|---|
| 1. | 10.7° | 23.5° | 16.0° | 14.4° | 0.0 | – | 1.7 | 2.8 |
| 2. | 10.8° | 22.0° | 15.2° | 14.3° | 0.0 | – | 1.7 | 2.6 |
| 3. | 13.1° | 17.4° | 14.5° | 14.1° | 0.0 | – | 1.4 | 2.3 |
| 4. | 12.6° | 25.1° | 18.6° | 14.0° | 0.6 | – | 1.4 | 2.5 |
| 5. | 11.2° | 25.9° | 18.5° | 13.9° | 0.0 | – | 1.7 | 3.9 |
| 6. | 12.5° | 20.2° | 15.2° | 13.7° | 0.0 | – | 1.5 | 3.4 |
| 7. | 12.7° | 18.4° | 15.6° | 13.6° | 0.0 | – | 1.2 | 2.2 |
| 8. | 14.9° | 20.1° | 15.9° | 13.4° | 0.0 | – | 1.1 | 3.3 |
| 9. | 14.0° | 18.1° | 16.0° | 13.3° | 0.0 | – | 0.9 | 1.7 |
| 10. | 15.6° | 23.5° | 17.9° | 13.1° | 0.0 | – | 1.8 | 4.0 |
| 11. | 14.3° | 18.1° | 16.8° | 13.0° | 0.0 | – | 2.3 | 3.7 |
| 12. | 15.2° | 20.2° | 16.5° | 12.8° | 1.1 | – | 2.4 | 4.3 |
| 13. | 9.7° | 17.8° | 12.6° | 12.7° | 0.0 | – | 2.5 | 4.0 |
| 14. | 7.1° | 13.9° | 10.9° | 12.5° | 0.0 | – | 1.3 | 3.3 |
| 15. | 10.2° | 16.5° | 13.2° | 12.4° | 1.0 | – | 1.0 | 1.8 |
| 16. | 10.0° | 18.2° | 13.7° | 12.2° | 0.3 | – | 1.8 | 3.7 |
| 17. | 6.0° | 15.8° | 11.4° | 12.0° | 4.3 | – | 2.1 | 3.4 |
| 18. | 11.4° | 15.8° | 13.4° | 11.9° | 1.9 | – | 3.1 | 5.1 |
| 19. | 11.2° | 16.6° | 13.3° | 11.7° | 56.9 | – | 2.3 | 4.7 |
| 20. | 8.8° | 17.6° | 12.9° | 11.5° | 0.2 | – | 2.0 | 5.0 |
| 21. | 13.7° | 16.7° | 15.3° | 11.3° | 1.7 | – | 3.2 | 5.9 |
| 22. | 10.7° | 17.8° | 13.0° | 11.2° | 30.1 | – | 2.0 | 3.7 |
| 23. | 8.0° | 17.8° | 11.8° | 11.0° | 0.1 | – | 1.3 | 2.6 |
| 24. | 6.6° | 16.6° | 11.9° | 10.8° | 0.0 | – | 2.0 | 3.8 |
| 25. | 13.4° | 15.7° | 14.4° | 10.6° | 4.5 | – | 3.1 | 5.3 |
| 26. | 10.2° | 16.9° | 13.5° | 10.5° | 0.8 | – | 1.8 | 3.6 |
| 27. | 14.0° | 20.3° | 15.7° | 10.3° | 2.4 | – | 1.7 | 3.0 |
| 28. | 12.9° | 18.4° | 14.8° | 10.1° | 0.6 | – | 2.5 | 4.2 |
| 29. | 12.4° | 16.1° | 13.2° | 9.9° | 10.8 | – | 1.3 | 2.5 |
| 30. | 8.8° | 18.2° | 13.3° | 9.8° | 0.0 | – | 2.2 | 4.9 |