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
100
February
98.1
98
98
100
March
99.2
99
100
April
100.0
100
May
100.0
100
June
96.6
100
89
July
98.7
98
100
August
98.0
96
100
September
97.9
99
97
October
99.2
100
98
November
99.4
100
99
December
100.0
100
100
Average
98.8
99.0
99.2
98.2
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
32.4
33
32
37
February
30.7
32
30
28
March
32.0
34
29
April
26.3
26
May
23.6
24
June
23.4
24
23
July
25.3
25
26
August
26.1
28
25
September
25.6
29
23
October
27.5
32
23
November
29.8
32
28
December
32.0
32
32
Average
28.9
33.0
28.3
25.4
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
January
23.5
23
23
37
February
23.5
24
22
28
March
24.5
25
24
April
19.2
19
May
17.8
18
June
15.4
16
15
July
17.5
17
19
August
17.3
19
15
September
18.8
22
16
October
20.0
22
18
November
21.2
25
18
December
24.1
23
26
Average
21.0
24.3
20.5
18.1
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
January
1.3
3
0
0
February
1.8
4
0
0
March
1.5
1
2
April
3.7
4
May
1.4
1
June
0.8
1
0
July
0.0
0
0
August
0.6
0
1
September
0.6
0
1
October
3.5
5
2
November
0.5
1
0
December
0.0
0
0
Average
1.4
2.4
1.2
0.6
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
2.1
2
2
6
February
1.8
1
3
3
March
2.3
3
1
April
1.6
2
May
2.1
2
June
2.9
3
3
July
3.8
3
4
August
4.5
4
6
September
5.6
7
5
October
4.9
6
4
November
3.0
4
3
December
2.0
2
2
Average
3.0
2.1
3.2
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
360°
042°
026°
February
017°
330°
360°
March
006°
080°
April
109°
May
086°
June
069°
112°
July
082°
042°
August
081°
065°
September
061°
101°
October
034°
126°
November
003°
090°
December
018°
075°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.