Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.
Marginal VFR conditions (%)
Month
Average
2024
2023
2022
2021
2020
January
95.5
91
94
97
98
98
February
95.5
91
96
95
96
99
March
92.1
91
91
93
85
96
April
92.2
92
85
95
95
May
85.4
83
78
94
85
June
85.3
87
77
83
90
July
87.7
84
81
91
93
August
88.6
97
84
82
96
September
84.2
70
85
89
93
October
90.4
91
89
95
93
November
93.3
84
95
93
95
December
95.3
89
94
97
97
Average
91.3
90.6
88.1
88.1
91.7
94.1
Marginal VFR conditions or better during daylight period
Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.
Maximum temperatures (°C)
Month
Average
2024
2023
2022
2021
2020
January
31.4
29
34
35
31
31
February
30.8
31
33
32
29
31
March
29.1
29
32
28
28
32
April
25.5
25
25
27
26
May
20.1
20
18
20
21
June
17.9
18
16
17
19
July
18.0
17
20
19
17
August
20.0
21
19
20
21
September
20.9
20
21
21
20
October
23.8
23
24
25
23
November
27.1
26
28
27
27
December
29.8
28
32
31
29
Average
25.2
29.6
24.9
24.3
24.4
24.6
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.