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
100.0
100
100
February
100.0
100
100
100
March
100.0
100
100
April
98.3
98
May
98.2
98
June
97.9
97
100
July
98.3
97
100
August
99.1
98
100
September
97.3
96
98
October
99.1
100
98
November
99.0
98
100
December
98.3
98
100
Average
99.1
100.0
98.2
99.3
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
January
30.0
31
28
February
28.4
29
28
30
March
29.5
31
28
April
24.8
25
May
20.8
21
June
21.0
22
20
July
22.0
21
23
August
22.9
24
22
September
23.1
25
22
October
24.0
26
22
November
24.8
27
23
December
27.5
28
27
Average
25.7
30.2
24.7
22.3
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
January
23.7
23
24
February
22.7
24
21
30
March
22.7
23
23
April
18.8
19
May
16.6
17
June
14.9
15
14
July
16.7
16
18
August
16.0
18
14
September
17.6
20
16
October
17.7
19
16
November
19.8
22
18
December
22.4
22
23
Average
19.6
23.1
19.1
16.7
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
January
3.5
3
6
February
2.8
5
0
0
March
2.9
3
3
April
3.3
3
May
12.5
13
June
3.0
4
0
July
4.0
7
0
August
2.4
0
5
September
5.3
8
3
October
8.3
8
9
November
6.0
6
7
December
5.0
6
0
Average
4.2
3.3
5.5
3.9
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
2022
January
3.8
4
3
February
2.4
2
3
6
March
2.4
3
2
April
2.1
2
May
1.1
1
June
3.3
3
4
July
4.1
4
4
August
4.4
5
4
September
4.7
6
4
October
4.9
5
4
November
2.3
3
2
December
1.5
2
1
Average
3.3
2.7
3.3
3.8
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
2022
January
108°
011°
February
074°
079°
059°
March
086°
052°
April
146°
May
121°
June
068°
146°
July
051°
035°
August
065°
115°
September
091°
129°
October
106°
142°
November
113°
093°
December
034°
022°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.