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
90.5
91
February
93.5
94
March
90.3
90
April
92.0
92
May
89.4
90
June
82.9
83
July
56.4
57
August
86.9
87
September
92.3
92
October
95.4
96
November
96.5
97
December
91.9
92
Average
88.8
91.4
86.2
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
January
31.9
32
February
31.7
32
March
32.9
33
April
31.1
31
May
32.0
32
June
30.8
31
July
31.0
31
August
30.8
31
September
31.2
31
October
31.1
31
November
30.9
31
December
30.7
31
Average
31.6
32.2
31.1
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
January
23.6
24
February
23.5
24
March
23.4
24
April
22.9
23
May
22.5
23
June
23.1
23
July
22.1
22
August
21.9
22
September
23.0
23
October
22.9
23
November
23.0
23
December
23.6
24
Average
23.1
23.5
22.8
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
January
0.4
0
February
1.6
2
March
1.0
1
April
0.5
1
May
0.0
0
June
0.0
0
July
0.0
0
August
0.0
0
September
1.0
1
October
0.6
1
November
1.9
2
December
0.4
0
Average
0.7
1.0
0.4
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
2.7
3
February
2.3
2
March
3.3
3
April
3.1
3
May
2.5
3
June
3.2
3
July
3.3
3
August
3.4
3
September
3.1
3
October
3.3
3
November
2.6
3
December
2.2
2
Average
2.9
2.8
3.0
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
January
246°
February
219°
March
178°
April
224°
May
314°
June
272°
July
282°
August
287°
September
277°
October
273°
November
237°
December
257°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.