| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high °C (°F) | 33.6 (92.5) |
33.1 (91.6) |
36.8 (98.2) |
35.2 (95.4) |
35.3 (95.5) |
37.5 (99.5) |
37.7 (99.9) |
36.6 (97.9) |
37.4 (99.3) |
36.5 (97.7) |
32.5 (90.5) |
35.7 (96.3) |
37.7 (99.9) |
| Mean daily maximum °C (°F) | 26.0 (78.8) |
27.3 (81.1) |
28.2 (82.8) |
29.4 (84.9) |
30.5 (86.9) |
32.8 (91.0) |
32.6 (90.7) |
31.0 (87.8) |
29.7 (85.5) |
27.9 (82.2) |
26.5 (79.7) |
25.2 (77.4) |
28.9 (84.1) |
| Mean daily minimum °C (°F) | 18.7 (65.7) |
19.2 (66.6) |
20.1 (68.2) |
21.5 (70.7) |
22.7 (72.9) |
24.4 (75.9) |
24.3 (75.7) |
23.8 (74.8) |
22.2 (72.0) |
20.4 (68.7) |
19.5 (67.1) |
18.0 (64.4) |
21.2 (70.2) |
| Record low °C (°F) | 12.5 (54.5) |
13.0 (55.4) |
11.2 (52.2) |
11.1 (52.0) |
15.9 (60.6) |
18.7 (65.7) |
18.1 (64.6) |
14.6 (58.3) |
15.0 (59.0) |
14.9 (58.8) |
10.7 (51.3) |
13.4 (56.1) |
10.7 (51.3) |
| Average precipitation mm (inches) | 64.7 (2.55) |
55.3 (2.18) |
102.9 (4.05) |
155.8 (6.13) |
143.2 (5.64) |
197.8 (7.79) |
218.6 (8.61) |
269.5 (10.61) |
270.1 (10.63) |
125.2 (4.93) |
58.3 (2.30) |
49.1 (1.93) |
1,710.5 (67.35) |
| Average precipitation days | 6 | 5 | 9 | 11 | 12 | 19 | 20 | 16 | 21 | 12 | 9 | 6 | 146 |
| Average relative humidity (%) | 78 | 76 | 78 | 79 | 83 | 85 | 85 | 87 | 89 | 91 | 86 | 83 | 83 |
| Mean monthly sunshine hours | 0.0 | 0.0 | 2.0 | 145.9 | 259.8 | 297.5 | 306.8 | 345.7 | 216.4 | 78.2 | 0.0 | 0.0 | 1,652.3 |
| [citation needed] | |||||||||||||
