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
75.1
76
67
February
79.4
80
0
March
88.8
91
20
April
82.6
82
83
May
96.7
97
June
70.3
70
July
66.6
67
August
61.5
62
September
65.0
61
100
October
65.0
61
100
November
21.0
0
44
December
31.0
26
100
Average
69.5
81.8
60.1
66.6
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
25.0
26
21
February
27.8
28
22
March
29.3
31
25
April
29.4
29
31
May
32.4
33
June
32.7
33
July
31.3
31
August
30.1
30
September
30.5
31
31
October
28.5
27
31
November
24.6
24
25
December
24.1
24
32
Average
28.5
28.2
28.3
29.0
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
January
15.5
15
17
February
18.0
18
22
March
22.0
21
24
April
26.1
25
29
May
30.4
31
June
31.3
31
July
30.3
30
August
29.0
29
September
28.7
28
31
October
26.6
25
31
November
21.2
20
23
December
20.1
20
29
Average
24.1
18.8
25.9
27.6
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
January
0.0
0
0
February
0.0
0
0
March
0.0
0
0
April
0.0
0
0
May
0.0
0
June
22.2
22
July
33.3
33
August
69.2
69
September
15.0
17
0
October
0.0
0
0
November
0.0
0
0
December
0.0
0
0
Average
5.0
15.0
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
January
6.0
6
7
February
6.5
7
5
March
6.5
7
4
April
8.1
8
9
May
11.0
11
June
13.5
14
July
4.8
5
August
11.8
12
September
9.0
9
10
October
4.7
4
8
November
3.0
2
4
December
5.4
5
7
Average
6.9
6.3
8.5
5.7
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
2022
January
001°
004°
February
348°
284°
March
323°
260°
April
270°
270°
May
266°
June
199°
July
217°
August
231°
September
251°
243°
October
321°
015°
November
038°
030°
December
019°
008°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.