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
90.1
82
91
82
92
93
February
88.9
91
88
94
93
74
March
91.8
89
92
92
95
91
April
91.3
91
86
96
96
May
91.3
89
92
91
93
June
86.9
84
82
87
86
July
89.7
88
94
94
83
August
81.4
78
87
83
86
September
81.6
88
69
83
78
October
78.0
70
87
70
75
November
85.1
85
88
88
87
December
89.9
92
88
90
85
Average
87.2
86.7
86.2
86.4
88.4
85.3
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
27.8
28
27
27
29
28
February
27.4
29
28
27
27
26
March
27.6
28
28
28
29
27
April
24.8
24
25
24
25
May
23.1
23
21
23
23
June
22.3
22
21
21
24
July
22.8
23
25
21
24
August
22.6
25
22
23
23
September
25.7
29
21
27
28
October
25.3
26
25
23
27
November
25.3
29
24
24
26
December
27.0
29
26
25
27
Average
25.5
28.0
25.9
24.3
24.6
25.3
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.