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Example climate estimate


Llanfairpwlligwyngll


National Grid Reference: 2530E 3710N

Lat: 53deg 12min 55sec N
Long: 4deg 12min 6sec W

Altitude: 15 metres above mean sea level

Climate estimates (1961-90)
 
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Max temp °C
7.7
8.0
9.7
12.1
15.2
17.9
19.4
19.3
17.4
14.6
10.5
8.7
13.4
Min temp °C
2.6
2.2
3. 4
4.9
7.4
10.1
11.9
11.9
10.4
8.3
5.0
3.5
6.8
Mean temp °C
5.2
5.1
6.6
8.5
11.3
14.0
15.7
15.6
13.9
11.5
7.8
6.1
10.1
Temp range °C
5.1
5.7
6.3
7.2
7.8
7.8
7.5
7.4
6.9
6.3
5.4
5.2
6.6
Highest max °C
16
17
22
24
28
29
31
34
27
25
18
17
34
Lowest min °C
-9
-8
-7
-3
-1
2
5
4
1
-1
-4
-8
-9
Lowest max °C
-3
-1
1
4
7
10
12
13
10
7
2
-1
-3
Highest min °C
12
11
12
12
16
18
20
20
17
18
13
12
20
Grass min °C
-0.6
1.2
-0.2
0.9
3.5
6.8
8.9
8.9
7.0
4.8
1.5
0.1
3.4
30cm soil temp °C
4.9
4.8
6.1
8.8
12.1
15.1
16.8
16.7
15.0
12.1
8.5
6.1
10.6
Sunshine hr/day
1.6
2.6
3.4
5.1
6.3
6.1
5.6
5.3
4.2
3.0
1.9
1.3
3.87
Rainfall mm
107
72
85
65
65
68
74
95
98
120
130
123
1102
Wind at 10m knots
11.6
10.5
11.1
9.5
9.3
9.0
8.8
8.9
9.9
10.4
10.8
11.2
10.1
Min hourly RH %
79
76
73
69
67
68
70
71
73
75
78
80
73
Max hourly RH %
88
88
88
88
89
91
91
92
91
90
89
89
89
Air frost days
5.8
5.9
2.2
0.9
0.0
0.0
0.0
0.0
0.0
0.1
1.8
4 4
21
Grass frost days
17.1
16.9
15.3
12.5
6.0
1.2
0.2
0.1
1.3
4.7
12.2
15.9
104
>= 10mm rain days
2.5
1.7
2.0
1.5
1.2
1.6
2.2
2.7
2.8
3.4
3.8
3.5
29
>= 1mm rain days
15.6
11.2
13.0
10.4
10.9
10.3
9.5
11.7
12.3
15.0
15.7
15.1
151
>= 0.2mm rain days
19.7
15.0
17.4
14.1
14.9
13.7
13.1
15.1
15.8
18.7
19.5
19.5
197
Snow falling days
2.9
3.1
1. 7
0.7
0.1
0.0
0.0
0.0
0.0
0.0
0.4
1.6
10
Sleet/snow fall days
4.6
4.5
3.4
1.5
0.2
0.0
0.0
0.0
0.0
0..0
1.0
2.9
18
Snow lying days
1.0
0.7
0.4
0.1
0.0
0.0
0.0
0.0
0.0
0.0
0.2
0.5
2.8
Hail days
1.7
1.2
1.6
1.1
0.8
0.2
0.0
0.1
0.2
1.0
1.8
1.4
11
Thunder heard days
0.2
0.2
0.3
0.4
1.4
1.3
1.2
1.2
0.7
0.6
0.4
0.3
8.3

 
Notes


These estimates are interpolated from values on a regular grid derived from station observations. Where relevant and possible the effects of altitude, urban areas and proximity to the coast are taken into account.

Local effects are not taken into account in producing these estimates. As a general rule this makes them less accurate in mountainous areas. In particular, days of thunder, hail, snow falling and snow lying may be unreliable in sparse data areas such as central and northern Scotland.