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
8.8
9
0
0
February
25.4
26
0
0
March
61.6
63
0
April
100.0
100
May
96.0
96
June
86.6
87
July
33.3
33
August
81.8
86
0
September
85.0
83
100
October
66.6
80
40
November
44.4
25
60
December
85.1
84
100
Average
51.6
30.5
76.0
48.2
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
21.9
22
19
22
February
25.4
26
23
13
March
28.6
29
23
April
31.3
31
May
30.3
30
June
31.0
31
July
30.7
31
August
31.5
32
27
September
31.8
32
33
October
28.7
29
28
November
24.0
26
23
December
23.3
23
30
Average
26.7
25.7
28.4
26.1
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
January
13.1
12
18
16
February
15.2
15
23
13
March
21.1
21
22
April
27.0
27
May
26.8
27
June
30.1
30
July
30.5
31
August
30.0
30
27
September
30.7
30
33
October
27.3
27
28
November
20.0
21
20
December
16.9
17
21
Average
22.0
15.8
25.8
24.4
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
January
0.7
0
0
33
February
0.0
0
0
0
March
8.0
8
0
April
0.0
0
May
8.0
8
June
33.3
33
July
66.6
67
August
54.5
57
0
September
30.0
28
50
October
13.3
15
10
November
0.0
0
0
December
3.7
4
0
Average
11.3
2.4
21.3
10.3
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
2.0
2
2
1
February
2.7
3
2
3
March
4.3
4
1
April
4.3
4
May
3.8
4
June
4.8
5
July
4.0
4
August
3.9
4
2
September
3.6
4
3
October
3.7
4
3
November
1.3
1
1
December
2.2
2
3
Average
2.8
2.9
3.4
2.2
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
2022
January
152°
360°
360°
February
099°
360°
333°
March
091°
360°
April
095°
May
043°
June
043°
July
024°
August
072°
360°
September
055°
146°
October
057°
101°
November
360°
126°
December
104°
111°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.