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
January
98.4
97
99
99
February
99.2
98
100
100
March
98.1
97
99
98
April
99.2
99
100
May
99.2
99
100
June
99.2
99
100
July
98.7
99
98
August
98.4
97
100
September
99.4
100
99
October
99.3
100
99
November
98.5
98
99
December
95.7
96
95
Average
98.3
97.2
98.7
99.1
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.