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
January
77.7
75
100
February
80.0
80
0
March
76.9
78
0
April
85.2
85
May
0.0
0
0
June
100.0
July
100.0
100
August
0.0
September
0.0
October
November
December
0
Average
55.5
80.6
100.0
75.0
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
January
24.0
24
28
February
31.5
33
0
March
34.1
37
0
April
39.5
40
May
20.5
0
41
June
29.0
July
33.6
34
August
33.0
September
36.0
October
November
December
29.0
29
Average
26.0
34.9
22.6
32.6
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
2021
January
18.9
19
15
February
21.0
22
0
March
24.7
27
0
April
30.9
31
May
20.5
0
41
June
29.0
July
31.0
30
August
33.0
September
29.0
October
November
December
29.0
29
Average
23.2
25.6
20.0
28.3
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
2021
January
0.0
0
0
February
0.0
0
0
March
0.0
0
0
April
0.0
0
May
0.0
0
0
June
0.0
July
0.0
0
August
0.0
September
0.0
October
November
December
0
Average
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
January
9.4
9
12
February
8.2
8
0
March
9.1
9
0
April
9.5
10
May
5.0
0
5
June
4.0
July
8.7
8
August
0.0
September
6.0
October
November
December
0
Average
5.5
9.0
8.3
10.0
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
2022
2021
January
090°
064°
February
075°
360°
March
058°
360°
April
040°
May
360°
045°
June
July
286°
August
September
October
November
December
360°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.