This interactive matrix parses long-term historical records from the station log files. Select a dataset below, and adjust the year using the dropdown menu.
| Day | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 5.5 | 9.2 | 11.4 | 15.6 | 24.6 | 22.2 | 26.8 | 26.8 | 22.6 | 20.6 | — | — |
| 2 | 3.7 | 8.2 | 15.4 | 13.4 | 24.1 | 19.3 | 26.6 | 29.9 | 20.3 | 21.2 | — | — |
| 3 | 3.3 | 6.4 | 16.1 | 14.7 | 19.9 | 18.0 | 27.5 | 33.7 | 25.2 | 20.6 | — | — |
| 4 | 3.2 | 11.4 | 16.8 | 15.1 | 18.2 | 18.0 | 28.8 | 29.2 | 20.8 | 22.9 | — | — |
| 5 | 2.7 | 8.7 | 18.2 | 14.3 | 18.9 | 19.0 | 29.3 | 25.5 | 24.4 | 23.4 | — | — |
| 6 | 4.3 | 10.8 | 10.0 | 16.5 | 15.6 | 16.3 | 32.0 | 23.2 | 25.9 | 23.7 | — | — |
| 7 | 6.1 | 10.1 | 9.9 | 22.1 | 17.3 | 17.9 | 32.1 | 26.8 | 24.7 | 14.9 | — | — |
| 8 | 8.4 | 10.6 | 10.3 | 26.2 | 19.6 | 16.8 | 33.6 | 28.8 | 16.9 | 15.2 | — | — |
| 9 | 5.9 | 10.2 | 13.9 | 22.1 | 22.5 | 18.7 | 34.2 | 32.3 | 19.3 | 19.1 | — | — |
| 10 | 3.2 | 11.2 | 13.0 | 13.7 | 13.1 | 18.9 | 32.3 | 28.6 | 19.8 | — | — | — |
| 11 | 10.1 | 11.9 | 13.1 | 13.6 | 12.8 | 16.0 | 29.4 | 28.4 | 21.4 | — | — | — |
| 12 | 10.6 | 9.9 | 11.6 | 14.7 | 17.0 | 22.8 | 29.7 | 35.5 | 23.3 | — | — | — |
| 13 | 10.7 | 10.1 | 11.2 | 13.2 | 13.2 | 23.2 | 26.9 | 37.2 | 23.3 | — | — | — |
| 14 | 9.8 | 6.9 | 12.1 | 16.9 | 14.5 | 22.6 | 30.6 | 35.6 | 24.6 | — | — | — |
| 15 | 9.8 | 8.1 | 11.7 | 16.4 | 14.4 | 23.9 | 29.1 | 29.4 | 23.2 | — | — | — |
| 16 | 9.2 | 10.0 | 12.2 | 17.7 | 15.6 | 26.0 | 30.2 | 26.6 | 19.9 | — | — | — |
| 17 | 10.3 | 7.1 | 14.9 | 17.4 | 17.3 | 24.4 | 30.1 | 28.1 | 21.4 | — | — | — |
| 18 | 12.3 | 5.7 | 19.0 | 17.7 | 14.1 | 25.4 | 24.8 | 25.4 | 20.6 | — | — | — |
| 19 | 10.2 | 6.4 | 18.4 | 16.5 | 17.2 | 28.9 | 24.4 | 24.9 | 20.8 | — | — | — |
| 20 | 9.6 | 10.8 | 15.6 | 16.2 | 18.7 | 25.0 | 27.5 | 23.8 | 21.1 | — | — | — |
| 21 | 9.1 | 12.7 | 15.4 | 14.5 | 23.7 | 32.1 | 24.4 | 21.7 | 24.8 | — | — | — |
| 22 | 9.1 | 13.2 | 13.8 | 17.4 | 27.7 | 29.2 | 27.1 | 23.7 | 27.4 | — | — | — |
| 23 | 9.1 | 12.6 | 15.7 | 19.7 | 30.3 | 34.4 | 25.5 | 26.0 | 23.9 | — | — | — |
| 24 | 9.6 | 15.4 | 12.0 | 20.8 | 32.4 | 37.3 | 29.1 | 23.6 | 22.1 | — | — | — |
| 25 | 7.7 | 17.7 | 10.2 | 24.0 | 33.7 | 34.9 | 29.0 | 26.8 | 24.7 | — | — | — |
| 26 | 7.1 | 12.2 | 11.2 | 21.4 | 34.1 | 34.3 | 26.7 | 29.2 | 22.5 | — | — | — |
| 27 | 10.4 | 11.9 | 11.4 | 22.2 | 29.2 | 30.9 | 27.6 | 25.3 | 21.7 | — | — | — |
| 28 | 8.8 | 11.5 | 11.6 | 18.4 | 31.1 | 25.3 | 28.8 | 24.3 | 19.6 | — | — | — |
| 29 | 6.3 | 10.7 | 18.1 | 25.2 | 25.6 | 33.8 | 19.9 | 26.1 | — | — | — | |
| 30 | 10.4 | 13.2 | 23.3 | 29.7 | 24.5 | 28.9 | 22.4 | 23.5 | — | — | — | |
| 31 | 10.0 | 16.4 | 23.7 | 26.6 | 23.9 | — | — |