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
2023
2022
January
100.0
100
February
100.0
100
March
81.2
0
87
April
May
June
100.0
100
July
August
September
100.0
100
October
100.0
100
November
December
100.0
100
Average
85.4
83.3
87.5
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
2023
2022
January
5.0
5
February
7.0
7
March
6.5
0
8
April
May
June
23.0
23
July
August
September
18.0
18
October
13.5
14
November
December
10.0
10
Average
9.5
10.8
8.1
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2023
2022
January
5.0
5
February
7.0
7
March
2.6
0
3
April
May
June
23.0
23
July
August
September
18.0
18
October
13.5
14
November
December
10.0
10
Average
7.6
10.8
4.3
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2023
2022
January
0.0
0
February
0.0
0
March
0.0
0
0
April
May
June
0.0
0
July
August
September
0.0
0
October
0.0
0
November
December
0.0
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
2023
2022
January
25.0
25
February
9.0
9
March
12.6
0
13
April
May
June
11.0
11
July
August
September
13.0
13
October
33.0
33
November
December
12.0
12
Average
14.2
15.1
13.3
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2023
2022
January
270°
February
129°
March
360°
168°
April
May
June
311°
July
August
September
189°
October
289°
November
December
210°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.