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
January
38.2
35
41
February
81.6
79
84
March
70.8
89
55
April
75.0
75
May
89.3
89
June
88.3
88
July
89.0
89
August
77.9
78
September
71.8
72
October
76.8
77
November
79.8
80
December
48.4
48
Average
70.3
69.4
71.3
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
January
26.2
25
28
February
29.9
29
31
March
32.9
33
33
April
37.0
37
May
38.4
39
June
38.5
39
July
31.4
31
August
30.6
31
September
30.8
31
October
30.9
31
November
29.0
29
December
24.4
25
Average
30.4
28.8
32.0
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
January
20.8
22
20
February
24.3
25
24
March
28.2
29
28
April
34.3
34
May
36.6
37
June
34.8
35
July
29.3
29
August
28.4
28
September
28.5
29
October
28.3
28
November
26.5
27
December
21.3
21
Average
26.7
24.8
28.5
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
January
0.6
1
0
February
0.0
0
0
March
1.6
1
2
April
0.0
0
May
0.0
0
June
8.9
9
July
10.0
10
August
16.5
17
September
6.6
7
October
1.8
2
November
0.0
0
December
3.9
4
Average
2.3
0.8
3.7
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
January
2.4
2
3
February
4.1
4
4
March
4.0
4
4
April
5.4
5
May
6.1
6
June
5.6
6
July
5.2
5
August
5.8
6
September
5.3
5
October
3.1
3
November
2.7
3
December
2.3
2
Average
3.7
3.2
4.3
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
January
065°
020°
February
253°
277°
March
267°
286°
April
269°
May
288°
June
261°
July
092°
August
249°
September
081°
October
324°
November
047°
December
060°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.