Tønsberg - Vallø observation station
September 2023
Summary
Temperature
September 2023
The temperature varied from 7.7° to 26.0°
Name Value Highest (5 Sep.) Temperature26.0°Lowest (24 Sep.) Temperature7.7°Average Temperature15.4° Precipitation
September 2023
The wettest day measured 36.5mm on 19 Sep.
Name Value Total Precipitation 94.4mmWettest day (19 Sep.) Precipitation 36.5mmDays with precipitation 10
| 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. | 10.6° | 21.5° | 16.0° | – | 0.0 | – | - | - |
| 2. | 11.9° | 21.1° | 16.2° | – | 0.0 | – | - | - |
| 3. | 13.2° | 19.9° | 16.0° | – | 0.0 | – | - | - |
| 4. | 14.6° | 25.5° | 19.3° | – | 0.0 | – | - | - |
| 5. | 14.2° | 26.0° | 19.3° | – | 0.0 | – | - | - |
| 6. | 14.4° | 22.1° | 16.5° | – | 0.0 | – | - | - |
| 7. | 14.0° | 19.1° | 16.8° | – | 0.0 | – | - | - |
| 8. | 15.3° | 18.0° | 16.4° | – | 0.0 | – | - | - |
| 9. | 15.3° | 18.3° | 16.5° | – | 0.0 | – | - | - |
| 10. | 16.2° | 19.1° | 17.2° | – | 0.0 | – | - | - |
| 11. | 16.6° | 18.2° | 17.5° | – | 0.1 | – | - | - |
| 12. | 17.1° | 21.6° | 17.5° | – | 0.9 | – | - | - |
| 13. | 9.0° | 17.1° | 13.5° | – | 0.0 | – | - | - |
| 14. | 9.9° | 15.6° | 12.3° | – | 0.0 | – | - | - |
| 15. | 10.7° | 18.0° | 14.7° | – | 11.0 | – | - | - |
| 16. | 10.9° | 19.6° | 14.5° | – | 0.0 | – | - | - |
| 17. | 8.2° | 16.2° | 12.7° | – | 0.7 | – | - | - |
| 18. | 13.0° | 16.2° | 14.6° | – | 0.0 | – | - | - |
| 19. | 12.8° | 17.3° | 14.8° | – | 36.5 | – | - | - |
| 20. | 10.3° | 17.3° | 14.0° | – | 0.4 | – | - | - |
| 21. | 14.8° | 18.1° | 16.1° | – | 1.0 | – | - | - |
| 22. | 11.8° | 17.4° | 13.9° | – | 28.4 | – | - | - |
| 23. | 10.2° | 17.8° | 13.4° | – | 4.6 | – | - | - |
| 24. | 7.7° | 16.7° | 12.8° | – | 0.0 | – | - | - |
| 25. | 14.0° | 17.2° | 15.4° | – | 1.3 | – | - | - |
| 26. | 12.3° | 17.6° | 15.1° | – | 1.2 | – | - | - |
| 27. | 14.5° | 19.9° | 15.9° | – | 2.5 | – | - | - |
| 28. | 13.0° | 18.0° | 15.5° | – | 2.7 | – | - | - |
| 29. | 12.8° | 16.6° | 14.3° | – | 0.3 | – | - | - |
| 30. | 11.5° | 18.4° | 14.0° | – | 2.8 | – | - | - |