Page updated April 13, 2016 20:37
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Data on this website may be freely used for personal and/or academic purposes only -but please do acknowledge Swanston Weather Site as source
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Swanston Weather Site
May 2015 (Means and totals to date are at foot of table)
 
  0900 GMT readings
 Daily  Readings (See notes at foot of page)
Weather in previous 24h (to 0900 on date)Blue >50% snow cover @09
Date
Date
Pressure
(mb)
Temperature
(°C)
Relative
Humidity
(%)
Wind
Speed
(mph)
Wind
Direction
Soil Temp
at 20cm
(°C)
Snow Depth(cm)
1Maximum
Temperature
(°C)
2Minimum
Temperature
(°C)
3Rainfall
(mm)
SEPA/UKM
Gauge
4GrassMin
Temp (°C)
5Sunshine
(Hours)
6Max
Wind Speed
(mph)
or
Pentlands snow line(ft)
1
1014.2
5.4
69
2
S
8.0
-
10.3
0.2
0.0
-5.4
11.98
18
 Sunny intervals 30th April. Hail shower @ 1500 GMT 30th
1
2
1013.1
7.1
66
13
SE
8.0
-
7.9
1.6
1.8
-1.1
2.22
32
 Prolonged sunshine 1st. Clear skies am 2nd
2
3
996.5
5.7
93
14
ESE
8.0
-
10.4
3.7
5.2
2.9
0.03
34
 Turning cloudy 2nd with occ rain later. Light rain am 3rd
3
4
996.8
10.4
75
13
W
9.0
-
15.6
5.7
5.1
6.1
9.05
30
 Rain 0900-1430GMT 3rd. Rain 0100-0200GMT 4th. Milder
4
5
986.8
7.1
98
19
E
9.0
-
10.6
5.9
15.3
1.9
2.43
36
 Sunny periods 4th. Rain and fog/low cloud 0545GMT onwards 5th
5
6
988.5
7.5
92
6
SSW
9.0
-
12.3
4.9
1.6
3.5
5.43
31
 Rain, occ heavy,0900-1500GMT 5th. Rain 0545-0730GMT 6th
6
7
1010.9
6.6
67
19
W
9.0
-
11.7
3.5
0.0
1.6
11.23
25
 Sunny intervals and showers 6th. Clear skies am 7th
7
8
1015.1
9.1
61
5
ESE
9.0
-
11.4
2.1
9.1
-3.9
4.47
23
 Sunny periods 7th. CLear skies am 8th
8
9
1010.2
6.3
95
3
N
10.0
-
13.5
5.7
7.1
5.3
4.12
22
 Sunny intervals 8th. Moderate rain am 9th
9
10
1014.3
10.3
86
16
S
9.0
-
14.3
7.7
2.7
4.9
0.95
49
 Heavy shower 1600-1620GMT 9th. Cloudy, light rain am 10th
10
11
1006.4
13.1
70
18
SW
10.0
-
15.0
10.2
5.7
8.3
11.71
43
 Windy. Rain late PM 10th. Clear skies am 11th
11
12
1005.8
8.8
77
15
W
10.0
-
13.0
7.1
0.3
5.9
7.43
41
 Windy. Sunny periods 11th, heavy showers+hail pm. Clear am 12th
12
13
1019.3
9.6
77
4
WNW
10.0
-
12.9
6.4
0.0
4.6
4.27
32
 Windy. Sunny intervals 12th, shower @ 1940GMT. Cloudy am 13th
13
14
1017.0
7.1
71
10
SE
9.5
-
11.2
2.8
0.0
-0.1
2.92
26
 Sunny intervals 13th. Clear overnight 13th/14th with ground frost
14
15
1019.0
9.6
67
7
W
10.0
-
13.1
2.6
0.1
-1.7
5.73
39
 A few sunny intervals 14th. Clear overnight 14th/15th with ground frost
15
16
1017.2
9.1
70
18
WNW
10.0
-
11.8
6.1
3.1
4.4
10.01
42
 Sunny intervals 15th. Brief showers overnight 15th/16th
16
17
1017.0
7.9
83
15
W
10.5
-
11.9
5.4
1.3
3.9
6.51
35
 Sunny periods 16th with showers late a'noon/eve'g. Showers am 17th
17
18
998.1
6.2
88
12
WNW
10.0
-
11.7
6.2
2.1
4.9
5.72
26
 Sunny intervals 17th. Rain at times overnight 17th/18th.
18
19
997.0
9.5
71
10
NW
10.5
-
13.6
3.9
Tr
3.9
7.99
29
 Showers 18th/19th. Low temperatures during showers 18th
19
20
1011.8
11.1
59
12
NW
10.5
-
16.4
5.6
0.6
3.9
11.81
24
 Sunny intervals 19th. Clear skies am 20th
20
21
1020.1
8.7
91
12
W
11.0
-
13.2
7.0
Tr
6.2
0.42
32
 Sunny periods 20th. Cloud overnight with light rain am 21st
21
22
1019.2
13.1
84
17
W
10.5
-
16.3
8.7
0.0
10.8
2.49
37
 Cloudy 21st. Mainly cloudy am 22nd. Milder
22
23
1025.2
12.3
66
3
W
11.0
-
19.2
6.1
0.2
2.1
11.67
30
 A few sunny intervals 22nd. Clear skies am 23rd
23
24
1014.8
10.7
68
15
WNW
12.0
-
13.3
8.2
0.0
6.4
5.90
34
 Sunny periods 23rd,clouding over later. Light rain early am 24th
24
25
1016.9
10.8
71
8
WNW
12.0
-
16.5
7.1
0.0
5.6
6.61
22
 Sunny intervals 24th. Variable cloud am 25th
25
26
1021.5
12.8
70
10
WNW
12.0
-
15.6
6.2
0.0
4.8
9.43
27
 Sunny intervals 25th. Variable cloud am 26th
26
27
1019.8
9.2
74
7
W
12.0
-
11.4
6.7
3.7
5.0
0.01
26
 Sunny periods 26th. Becoming cloudy am 27th
27
28
1006.9
8.3
81
13
W
11.0
-
11.6
5.3
1.3
3.5
11.13
38
 Rain pm 27th. Clear skies am 28th
28
29
1002.0
8.2
75
10
WNW
11.0
-
13.3
5.1
0.8
4.1
7.68
29
 Sunny periods 28th with showers early pm. Clear am 29th
29
30
1008.9
10.3
64
13
WNW
11.0
-
14.6
4.4
7.2
2.5
12.55
30
 Showers 1430-1530GMT 29th. Clear skies am 30th
30
31
996.5
8.3
92
14
WNW
11.5
-
12.0
5.1
1.3
4.3
6.25
Prolonged sunshine 30th. Rain am 31st
31
                               
Total/
Mean
 
 
13.1
5.4
75.6
200.15
 
Date
 
Pressure
(mb)
Temperature
(°C)
Relative
Humidity
(%)
Wind
Speed (mph)
Wind
Direction
Soil Temp
at 20cm
(°C)
Snow Depth(cm)
1Maximum
Temperature
(°C)
2Minimum
Temperature
(°C)
3Rainfall
(mm)

SEPA
Gauge
4GrassMin'm
Temperature
(°C)
5Sunshine
(Hours)
6Maximum
Wind Speed
(mph)
or
Pentlands Snow line(ft)
 
  0900 GMTreadings
Daily Readings (see notes below)  
    

 

Notes
1. For the 24 hours from 0900UTC* on the date to 0900UTC* on the following day. (The maximum temperature is generally in the afternoon*)
2. For the 24 hours ending at 0900UTC* on the date. (The minimum temperature is generally just after sunrise*)
*Where a maximum is overnight or minimum is during the day the figure is shown in italics. This often occurs in winter
3. For the 24 hours from 0900UTC* on the date to 0900UTC* on following day. SEPA = Scottish Environmental Protection Agency 5" diameter gauge
4. For the period from sunset on previous day to 0900UTC* on the date
5.For the period sunrise to sunset on the date
6. For the period 0000UTC*-2400UTC* on the date i.e the Calendar Day
* UTC is Universal Time Coordinated. It has been adopted by the UK Met.Office in place of Greenwich Mean Time (GMT). When British Summer Time is in force UTC is BST minus one hour ,e.g.1000BST=0900UTC

 

 

 

 

 


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