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
98.3
100
100
100
100
February
92.6
100
100
100
67
March
94.1
98
100
100
100
April
94.7
96
100
100
100
May
100.0
100
100
100
June
97.7
100
100
July
95.2
95
100
100
August
97.1
92
100
100
100
September
91.0
78
100
100
October
90.3
78
100
100
November
94.3
97
91
100
100
December
93.7
86
100
100
Average
95.4
99.3
90.8
97.8
100.0
90.0
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
29.2
31
25
30
40
February
27.6
32
26
29
29
March
28.2
31
28
32
24
April
25.3
27
21
27
26
May
24.4
26
25
30
June
21.5
25
21
July
20.8
25
15
13
August
23.7
22
24
19
28
September
26.5
29
20
25
October
27.8
29
29
24
November
27.8
31
29
24
27
December
29.6
28
34
32
Average
26.7
31.3
27.1
24.9
25.0
29.1
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
2021
2020
January
24.7
24
24
28
40
February
24.5
26
26
26
15
March
24.3
24
25
32
24
April
21.1
23
21
27
25
May
18.9
22
24
30
June
17.5
20
20
July
16.1
21
14
13
August
19.8
21
24
19
28
September
20.5
24
20
23
October
22.9
22
27
24
November
24.7
24
25
24
27
December
25.6
25
32
29
Average
23.2
24.4
23.2
23.3
23.6
25.3
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
2021
2020
January
3.3
2
0
0
0
February
9.4
3
0
0
33
March
5.8
4
0
0
0
April
4.2
4
0
0
0
May
0.0
0
0
0
June
2.2
0
0
July
1.9
0
0
0
August
0.0
0
0
0
0
September
4.0
4
0
0
October
8.0
15
0
0
November
10.2
6
9
0
0
December
12.5
19
0
14
Average
4.8
2.6
6.8
2.1
4.0
10.0
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
2021
2020
January
3.3
4
0
7
13
February
3.8
4
6
1
15
March
4.2
5
6
6
13
April
2.9
3
8
5
3
May
2.0
3
6
0
June
2.2
1
5
July
2.4
1
4
0
August
3.7
2
6
0
5
September
4.9
4
0
4
October
5.5
6
3
10
November
4.3
5
4
4
0
December
4.5
4
6
4
Average
4.3
4.3
3.8
3.9
3.6
7.7
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
2022
2021
2020
January
126°
360°
124°
080°
February
158°
150°
140°
173°
March
146°
149°
143°
198°
April
143°
133°
116°
225°
May
112°
129°
360°
June
090°
167°
July
183°
128°
360°
August
090°
122°
360°
135°
September
131°
360°
122°
October
126°
173°
180°
November
118°
121°
098°
360°
December
140°
174°
105°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.