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
2020
January
100.0
100
100
100
100
100
February
99.0
99
99
98
100
100
March
98.6
100
97
97
100
100
April
99.4
99
100
100
100
May
100.0
100
100
100
100
June
98.4
99
100
89
88
July
100.0
100
100
100
100
August
100.0
100
100
100
100
September
100.0
100
100
100
100
October
98.5
100
97
94
100
November
99.4
99
100
100
100
December
96.3
98
88
100
100
Average
99.3
99.7
99.2
98.8
98.1
99.0
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
2020
January
30.0
31
30
30
29
30
February
30.0
31
30
31
30
30
March
29.8
31
30
30
28
30
April
29.6
30
30
29
30
May
29.5
30
30
29
29
June
29.5
30
30
29
29
July
29.9
31
30
31
30
August
29.9
31
30
30
29
September
30.1
31
30
30
30
October
29.9
31
30
30
29
November
29.7
31
30
30
29
December
29.6
31
30
29
29
Average
29.7
30.7
30.4
30.0
29.4
29.5
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
2021
2020
January
28.2
29
28
28
28
29
February
28.2
28
27
29
29
30
March
28.3
28
28
27
28
29
April
28.4
28
28
28
30
May
28.4
28
28
28
29
June
28.2
28
28
28
29
July
28.6
29
28
29
29
August
28.6
29
28
29
28
September
28.4
27
28
29
29
October
28.2
27
28
29
29
November
28.5
28
28
28
29
December
28.4
28
28
28
29
Average
28.5
28.2
27.9
28.0
28.3
29.0
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
2021
2020
January
4.0
1
9
5
0
0
February
7.4
6
8
14
0
0
March
5.3
1
4
15
33
0
April
5.1
4
9
0
0
May
4.0
2
4
13
9
June
8.7
3
15
22
0
July
4.9
4
7
0
0
August
1.0
2
0
0
0
September
6.3
1
17
9
0
October
11.5
11
15
6
0
November
10.6
9
10
18
0
December
10.9
14
0
0
30
Average
6.7
2.8
5.8
9.0
8.2
3.8
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
2020
January
14.1
14
15
13
22
14
February
13.7
13
14
14
13
17
March
14.1
18
10
13
15
17
April
12.2
11
14
12
14
May
8.4
6
9
14
14
June
9.3
8
10
14
8
July
9.5
8
11
10
9
August
7.1
5
10
7
11
September
7.1
7
7
9
8
October
6.7
6
8
7
8
November
10.9
12
10
12
11
December
12.7
13
12
13
16
Average
11.4
14.8
9.4
10.9
10.7
13.1
Average wind speed
Excluding wind gusts. Only observations between sunrise and sunset are taken into account.
Prevailing wind direction
Month
2024
2023
2022
2021
2020
January
043°
073°
052°
070°
054°
February
053°
052°
061°
052°
054°
March
051°
069°
066°
078°
044°
April
065°
066°
071°
057°
May
070°
105°
061°
061°
June
068°
077°
098°
060°
July
065°
077°
118°
068°
August
077°
081°
090°
119°
September
062°
107°
085°
060°
October
060°
095°
119°
090°
November
061°
081°
080°
071°
December
057°
064°
043°
062°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.