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
90.8
88
96
91
88
89
February
92.1
91
91
95
96
95
March
85.3
82
92
72
81
96
April
86.7
83
86
99
92
May
76.1
78
62
86
84
June
79.0
83
66
70
81
July
84.0
79
83
95
81
August
82.2
89
75
78
87
September
79.2
66
85
82
79
October
82.5
77
81
87
89
November
87.0
78
96
87
91
December
91.6
89
92
96
85
Average
85.5
86.6
84.0
81.9
86.4
89.0
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
25.8
25
27
29
23
26
February
24.5
27
25
28
23
26
March
22.8
26
26
24
23
27
April
21.2
21
21
21
20
May
17.8
20
16
17
18
June
15.8
17
14
14
17
July
16.6
17
20
16
14
August
16.7
20
18
19
18
September
16.6
19
18
19
18
October
18.5
19
19
21
21
November
22.9
22
22
25
22
December
25.9
27
26
27
24
Average
21.1
26.0
21.5
20.9
20.6
21.2
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.