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
January
88.2
88
February
89.3
90
89
March
88.5
89
88
April
79.9
80
May
83.8
84
June
82.8
83
July
85.5
86
August
83.1
83
September
81.9
82
October
81.5
82
November
87.5
88
December
86.1
86
Average
86.7
89.0
84.4
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
January
30.6
31
February
32.7
34
32
March
34.2
35
33
April
34.0
34
May
33.0
33
June
32.8
33
July
32.0
32
August
31.7
32
September
31.7
32
October
32.3
32
November
30.3
30
December
29.8
30
Average
32.6
33.2
32.0
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
January
21.6
22
February
21.2
21
21
March
21.3
22
21
April
22.9
23
May
23.4
24
June
23.3
23
July
23.1
23
August
23.0
23
September
23.1
23
October
23.2
23
November
23.0
23
December
22.6
23
Average
22.1
21.4
22.7
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
January
8.2
8
February
3.7
2
5
March
2.2
1
3
April
3.9
4
May
5.0
5
June
3.6
4
July
5.0
5
August
8.8
9
September
9.4
10
October
9.0
9
November
15.8
16
December
20.2
20
Average
6.0
3.9
8.1
Precipitation during daylight period
Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.
Wind speed (knots)
Month
Average
2024
2023
January
2.7
3
February
3.3
4
3
March
3.4
4
3
April
2.5
3
May
3.5
4
June
3.7
4
July
3.4
3
August
3.5
4
September
3.1
3
October
3.1
3
November
2.1
2
December
2.4
2
Average
3.2
3.4
3.0
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
January
064°
February
062°
056°
March
059°
055°
April
227°
May
233°
June
230°
July
226°
August
223°
September
223°
October
235°
November
053°
December
061°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.