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
52.4
54
22
54
February
49.4
49
63
38
0
March
91.9
94
100
33
0
April
93.1
88
100
100
100
May
90.9
93
100
June
57.2
57
100
33
July
63.5
68
0
73
August
63.9
64
63
40
September
54.6
46
88
67
0
October
77.9
87
100
73
November
75.1
77
80
68
December
62.6
62
71
61
Average
65.6
72.3
69.7
62.6
67.6
57.1
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
32.3
33
31
33
February
32.0
33
32
29
29
March
33.2
34
33
32
29
April
30.0
29
30
33
30
May
30.9
32
24
June
29.1
29
32
27
July
27.6
29
25
27
August
27.9
29
27
26
September
27.4
28
28
28
24
October
28.9
30
31
29
November
30.2
31
30
30
December
32.2
32
33
33
Average
29.5
33.2
29.9
31.0
29.6
26.6
Average highest temperature per day
The maximum temperature is typically observed some hours after noon.
Minimum temperatures (°C)
Month
Average
2024
2023
2022
2021
2020
January
28.8
28
29
30
February
28.8
28
31
29
29
March
28.5
28
33
32
29
April
28.6
26
28
33
30
May
28.5
29
24
June
26.1
25
29
27
July
25.9
26
25
26
August
26.0
25
27
25
September
25.9
26
28
26
24
October
26.8
27
31
27
November
27.3
27
29
28
December
29.3
28
31
31
Average
27.6
27.9
26.8
29.3
28.0
26.2
Average lowest temperature per day
The minimum temperature is typically observed just before sunrise.
Precipitation (%)
Month
Average
2024
2023
2022
2021
2020
January
0.0
0
0
0
February
0.0
0
0
0
0
March
0.0
0
0
0
0
April
0.0
0
0
0
0
May
1.8
1
0
June
5.3
7
0
0
July
7.7
8
0
0
August
7.2
8
13
0
September
6.6
10
0
0
0
October
0.7
1
0
0
November
1.4
2
0
0
December
0.0
0
0
0
Average
1.3
4.4
0.7
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
4.5
5
5
4
February
3.7
4
4
2
0
March
5.1
5
10
5
5
April
4.4
4
5
7
0
May
5.3
5
0
June
4.6
5
5
4
July
4.9
5
5
4
August
4.7
5
5
6
September
4.3
4
8
4
0
October
2.9
3
6
2
November
3.6
4
4
3
December
4.5
4
3
5
Average
4.2
4.6
4.4
4.5
3.6
4.2
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
266°
011°
260°
February
313°
252°
233°
360°
March
241°
231°
206°
165°
April
276°
045°
184°
360°
May
229°
360°
June
243°
201°
206°
July
242°
206°
312°
August
246°
188°
207°
September
248°
239°
316°
360°
October
253°
234°
108°
November
244°
266°
226°
December
268°
270°
050°
Prevailing wind direction
Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.