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
94.3
92
96
97
96
94
February
92.0
82
95
93
93
97
March
89.3
86
94
90
87
93
April
88.0
93
80
92
94
May
78.1
72
75
85
85
June
77.9
85
71
75
77
July
79.8
76
75
81
85
August
84.3
86
79
76
87
September
82.3
70
91
80
83
October
85.7
84
87
88
89
November
93.1
83
97
94
96
December
94.2
90
95
93
95
Average
87.4
86.8
85.6
86.5
87.0
90.3
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
31.0
30
33
34
31
31
February
30.3
31
32
31
29
31
March
29.1
29
32
28
28
32
April
26.0
26
24
27
27
May
21.4
23
19
20
22
June
19.8
21
17
18
21
July
19.8
19
21
20
19
August
21.4
23
20
22
23
September
22.8
23
21
22
22
October
25.0
23
24
25
26
November
27.9
27
28
28
28
December
30.5
29
31
31
30
Average
25.9
29.7
25.8
24.5
25.1
25.8
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.