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
98.8
99
100
February
94.8
95
March
99.7
100
April
May
June
July
August
September
0.0
October
68.8
69
November
99.7
100
December
99.4
99
Average
96.1
97.6
95.3
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
28.8
29
27
February
29.1
29
March
30.3
30
April
May
June
July
August
September
0.0
October
32.6
33
November
30.3
30
December
29.0
29
Average
28.9
29.3
30.0
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
January
22.9
21
26
February
23.9
24
March
24.6
25
April
May
June
July
August
September
0.0
October
19.0
19
November
23.3
23
December
23.7
24
Average
23.8
23.3
22.9
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
January
0.3
0
25
February
0.0
0
March
0.0
0
April
May
June
July
August
September
0.0
October
0.0
0
November
0.0
0
December
0.0
0
Average
0.0
0.1
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
10.5
11
14
February
12.2
12
March
13.7
14
April
May
June
July
August
September
0.0
October
13.4
13
November
11.2
11
December
11.5
12
Average
11.6
12.4
11.6
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
January
093°
092°
February
095°
March
086°
April
May
June
July
August
September
October
084°
November
086°
December
089°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.