Page updated May 31, 2020 10:25
Link to April 2020..Link to June 2020

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Swanston Weather Station
May 2020 (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 & hours of air frost (to 0900 on date)
Date
Date
Pressure
(mb)
Temp (°C)
Relative
Humidity (%)
Wind Speed
(mph)
Wind
Direction
SoilTemp @ 20cm
(°C)
SnowDepth(cm) or
Pentlands, Lammermuirs, Moorfoots snowline(ft)
1Maximum Temp (°C)
2Minimum Temp (°C)
3Rainfall
(mm)

4Grass Min Temp
(°C)
5Sun (Hours)

Solar
Rad'n High
(W/m2)

7ET
(mm)
6Max Wind
Speed (mph)
1
994.9
8.5
76
2
SW
10.0
15.5
5.6
0.5
4.6
4.22
949
2.1
18
Mainly cloudy 30th April. Variable cloud amount 1st May.
1
2
1007.0
10.5
63
9
NW
10.5
15.1
6.2
0.0
4.4
8.75
1099
2.7
18
Sunny intervals 1st, shower evening. Clear skies am 2nd.
2
3
1016.7
9.4
77
7
SE
10.0
13.0
4.8
6.5
2.1
4.50
1092
1.9
16
Prolonged sunshine 2nd. Clear skies, becoming more cloudy am 3rd
3
4
1024.4
6.1
93
3
SE
10.0
11.6
5.6
1.6
3.9
5.90
1081
1.7
18
Sunny intervals 3rd, shower early pm. Heavy shower 0240h 4th then light showers
4
5
1025.2
8.4
72
5
NE
9.0
13.2
2.2
0.0
– 1.6
13.52
1028
2.8
15
Sunny periods 4th. Clear skies am 5th, ground frost
5
6
1026.4
12.3
54
3
SE
10.0
16.7
2.7
0.0
– 1.5
15.37
819
4.0
16
Prolonged sunshine 5th.Clear skies am 6th, ground frost
6
7
1020.3
15.3
50
6
WSW
10.0
18.1
4.6
0.0
– 0.4
9.17
1079
3.2
21
Unbroken sunshine 6th. Clear early 7th with ground frost. Cloud later from S
7
8
1016.4
12.4
81
8
N
11.0
18.4
9.9
0.0
6.9
7.62
1121
3.4
19
Cloudy midday 7th otherwise sunny periods. Cloud breaking am 8th
8
9
1014.6
15.1
76
3
WNW
11.5
20.0
8.8
9.6
3.8
3.74
993
2.9
24
Sunny periods 8th. Clear periods am 9th
9
10
1020.3
3.7
79
11
ENE
11.0
7.8
2.7
0.2
2.6
4.71
1049
2.5
28
Much colder air from NE later on 9th. Precipitation late 9th and am 10th
10
11
1028.0
5.6
54
5
NE
10.0
11.6
– 0.5
0.0
– 4.7
9.56
1004
2.5
17
Sunny intervals 10th, snow and hail showers early evening. Air frost,am 11th,1.5h<0C
11
12
1019.6
9.1
52
9
N
11.0
13.2
3.9
5.0
2.4
6.65
1107
2.5
28
Sunny periods 11th. Clear spells am 12th.
12
13
1022.3
6.4
50
5
NE
10.0
9.2
0.1
0.0
– 3.6
6.86
1187
2.0
14
Turning much colder from 1600h, 12th, rain from NE. Clear skies am 13th. G'nd frost
13
14
1023.1
9.3
58
10
WNW
10.0
13.8
1.6
0.0
– 3.8
10.39
1273
2.8
25
Sunny periods 13th. Ground frost am 14th
14
15
1022.8
10.5
61
12
N
10.5
13.8
5.4
0.0
3.2
8.67
1160
2.5
23
Prolonged sunshine 14th. Clear periods overnight 14th/15th
15
16
1020.3
9.9
69
15
WNW
10.0
14.7
6.4
0.0
5.0
3.70
1236
3.4
28
Sunny periods 15th. Cloud increasing am 16th
16
17
1017.0
10.6
81
15
WSW
11.0
13.6
8.4
2.0
7.5
0.08
824
2.3
31
Sunny intervals 16th. Cloudy overnight 16th/17th
17
18
1016.4
12.4
83
11
W
11.0
14.9
9.5
2.6
8.6
0.35
981
2.2
32
Cloudy 17th. Rain late pm 17th and early am 18th. Milder
18
19
1018.3
14.1
85
9
W
12.5
18.6
10.7
0.0
9.7
1.33
988
2.4
24
Shower early evening 18th, rain am 19th
19
20
1019.6
18.4
67
6
SSW
13.0
23.9
12.0
trace
8.9
14.77
939
5.7
38
Mainly cloudy 19th. Clearer and warmer am 20th
20
21
1016.8
12.4
74
7
W
13.0
18.2
11.7
1.4
7.8
6.66
1118
4.1
22
Unbroken sunshine 20th, relative humidity 12% at 2120 GMT. Cooler am 21st
21
22
999.1
13.1
66
22
SW
13.0
14.7
11.3
0.7
9.5
9.10
944
4.9
48
Sunny periods 21st. Rain am 22nd, wind gusting 44 mph
22
23
1002.8
8.4
82
25
WSW
13.0
12.8
7.9
0.2
7.5
5.57
960
3.7
53
Sunny periods and occasional showers 22nd. Rain am 23rd, blustery, 48 mph
23
24
1021.3
12.4
84
16
W
13.0
16.2
8.4
0.0
6.9
4.54
909
3.1
34
Sunny intervals 23rd, wind gusting to 53 mph. Calmer with broken cloud am 24th
24
25
1031.0
16.2
57
9
N
12.0
18.0
6.6
0.0
1.4
9.84
976
4.2
29
Sunny intervals 24th. Clear skies am 25th
25
26
1034.1
12.6
65
11
N
13.5
18.3
10.9
0.0
10.9
13.94
946
5.0
23
Sunny periods 25th. Broken cloud am 26th
26
27
1037.5
12.9
62
5
N
14.0
18.1
8.4
0.0
4.8
11.87
928
4.7
23
Prolonged sunshine 26th. Clear then cloudy am 27th
27
28
1033.0
17.8
56
9
N
14.0
24.1
11.2
0.0
8.6
13.60
877
5.0
20
Prolonged sunshine 27th. High cloud am 28th
28
29
1027.6
21.1
61
3
NNW
15.5
25.3
13.8
0.0
10.8
16.15
835
5.2
20
Prolonged sunshine 28th. High cloud clearing am 29th
29
30
1024.9
19.1
53
9
SSE
15.0
22.0
12.3
0.0
8.5
16.25
904
6.1
23
Unbroken sunshine 29th. Clear skies am 30th
30
31
1026.9
16.3
61
8
ESE
15.0
6.9
3.3
Unbroken sunshine 30th. Clear skies am 31st
31
 
Total/
Mean
16.1
7.1
30.3
– 4.7
247.34
1273
101.2
53
 
Date
 
Pressure
(mb)
Temp
(°C)
Relative
Humidity
(%)
Wind
Speed (mph)
Wind
Direction
Soil Temp
at 20cm
(°C)
Snow Depth(cm)
or
Pentlands Snow line(ft)
1 Mean Maximum
Temp
(°C)
2Mean Minimum
Temp
(°C)
3Total Rainfall
(mm)


4Grass Min
Temp
lowest
(°C)
5Total Sun
(Hours)
Solar
Rad'n highest
W/m2
7Total ET
(mm)
6Max
Wind Speed
(mph)

Month so far (to 0900 GMT on the 31st May)

Overall mean temperature 11.6 ( + 1.4 degC of normal)

Precipitation 30.3 mm (53.2%), Sunshine 247.34 hours (126.8%)

 
  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/UKMO 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
7. Total evapotranspiration on the date (in mm).
* 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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