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
98.0
98
100
99
97
99
February
98.7
96
99
100
100
99
March
96.9
97
96
98
100
97
April
95.2
97
95
100
96
May
90.3
84
90
97
92
June
85.6
84
81
84
83
July
82.5
85
69
88
92
August
86.0
99
88
77
92
September
82.2
66
94
89
22
October
90.2
89
89
95
100
November
96.3
85
97
99
98
December
96.5
92
99
95
98
Average
92.6
96.9
89.8
91.1
93.3
94.5
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
30.4
29
33
32
30
31
February
30.0
30
32
30
28
31
March
28.6
28
32
29
27
30
April
25.9
26
26
26
26
May
22.0
24
21
21
23
June
19.4
21
17
18
19
July
18.8
19
19
18
18
August
20.1
23
20
19
21
September
21.4
21
21
21
17
October
23.9
24
24
24
21
November
26.5
27
28
26
26
December
28.5
28
30
27
28
Average
25.2
28.9
25.5
24.4
23.7
25.1
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.