Page updated May 1, 2018 11:19
Link to March 2018..Link to May 2018

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Swanston Weather Station
April 2018 (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 Temperature (°C)
2Minimum Temperature (°C)
3Rainfall
(mm)
4GrassMin Temp
(°C)
5Sunshine (Hours)

Solar
Rad'n High
(W/m2)
7ET
(mm)
6Max Wind
Speed (mph)
1
1014.8
2.7
84
4
E
4.0
600' PML
5.9
– 1.6
0.0
– 4.5
3.68
969
1.3
15
Rain and snow 31st. Persistent light snow am 1st. 2.0h<0C
1
2
1004.0
2.9
84
12
ESE
4.0
1000' PML
3.2
0.2
20.1
– 3.5
0.00
214
0.5
28
Sunny intervals 1st pm. Cloudy then snow am 2nd
2
3
990.3
1.8
98
9
E
3.0
3 cm
2.9
0.3
21.1
– 1.0
0.00
214
0.3
20
Snow 2nd, heavier in evening 6 cm. Light sn am 3rd, 3cm 09h
3
4
993.8
1.0
99
7
ENE
3.0
600' PML
3.6
1.0
23.7
– 1.0
0.00
79
0.0
23
Snow then rain pm 3rd. Rain then snow am 4th
4
5
1010.3
3.6
86
13
W
3.0
13 cm
8.4
– 0.6
0.0
– 4.0
10.41
916
2.5
27
Heavy snow 4th. 15 cm @ 1800. Clear am 5th. 6.9h<0C
5
6
1008.8
4.9
80
8
SSE
3.0
4 cm
10.4
3.4
0.2
0.4
0.89
686
1.5
42
Prolonged sunshine 5th. Cloudy overnight 5th/6th
6
7
1005.3
8.6
85
6
SW
4.0
1100' PML
11.3
4.9
1.1
3.0
0.92
283
1.3
34
Mainly cloudy 6th. Cloudy am 7th. Milder
7
8
1007.3
9.5
84
4
WNW
5.0
1300' PML
11.4
5.8
0.4
0.2
3.82
555
1.3
15
Mainly cloudy 7th. Clearing skies am 8th
8
9
1007.9
8.8
87
1
ESE
5.5
Patches
12.3
5.0
2.7
1.3
2.45
624
1.3
14
Sunnny intervals 8th. Mainly cloudy am 9th
9
10
1011.1
4.5
99
11
E
5.5
Few patches
4.8
3.9
7.2
2.0
0.00
56
0.0
26
Sunnny intervals 9th. Fog (low cloud) and rain am 10th
10
11
1014.6
4.9
100
7
E
5.0
5.8
4.3
0.1
3.0
0.00
232
0.5
22
Fog (low cloud) and rain throughout 10th and am 11th
11
12
1012.1
5.4
94
8
ESE
5.5
5.6
4.0
8.3
3.6
1.04
227
0.4
21
Fog (low cloud) 11th lifting later. Cloudy 12th am
12
13
1007.1
4.9
99
7
E
5.0
10.3
4.1
0.3
3.0
0.00
102
0.3
19
Fog (low cloud) throughout. Rain late pm 12th/am 13th
13
14
1013.9
10.3
88
2
NNE
6.0
15.4
4.9
trace
3.2
8.76
940
2.5
23
Fog (low cloud) 13th. Cloud lifting and breaking am 14th
am
15
1003.6
11.3
81
10
SSE
6.5
15.7
4.9
0.2
2.6
8.48
849
2.5
27
Sunny periods 14th. Clear skies am 15th
15
16
1004.1
9.8
88
6
SW
7.5
13.6
7.3
0.5
5.0
2.72
928
2.3
37
Sunny periods 15th. Cloudy overnight 15th/16th
16
17
1005.1
11.6
83
16
SW
8.0
13.8
8.4
0.1
6.0
9.25
830
2.8
52
Sunny intervals 16th. Showers late pm. Variable cloud am 17th
17
18
1019.5
13.2
86
10
SW
8.5
16.4
9.9
0.0
8.0
3.28
879
2.5
35
Sunny periods 17th. Cloudy overnight 17th/18th
18
19
1020.6
16.4
70
13
SW
10.0
19.2
13.2
0.0
9.8
10.61
933
3.4
39
Sunny intervals 18th. Warmer am 19th
19
20
1021.7
13.2
74
10
W
9.5
16.1
7.8
0.0
4.3
12.37
909
3.6
26
Prolonged sunshine 19th. Clear skies am 20th
20
21
1020.6
13.1
67
10
WSW
9.0
19.2
6.2
0.0
1.4
13.69
874
3.6
20
Prolonged sunshine 20th. Clear skies am 21st
21
22
1002.8
12.2
61
14
WSW
10.0
12.9
11.0
1.5
5.7
2.19
902
2.3
35
Unbroken sunshine 21st. Cloudy am 22nd
22
23
1007.0
8.9
87
13
W
9.0
12.2
7.2
0.3
4.5
3.43
793
2.3
44
Sunny intervals 22nd. Showers later pm & am 23rd
23
24
1006.9
9.2
76
14
W
9.0
12.7
6.3
0.1
3.5
5.30
837
2.8
37
Sunny intervals 23rd. Shower early am 24th
24
25
1003.3
9.4
77
15
WSW
9.5
12.1
5.8
0.4
2.6
9.53
1013
3.0
29
Sunny intervals 24th. Variable cloud am 25th
25
26
1004.5
7.7
84
16
W
9.0
11.7
5.2
0.1
2.7
10.43
1009
3.6
35
Sunny periods 25th, shower mid pm. Clear am 26th
26
27
1008.6
8.3
68
6
WNW
9.0
12.7
3.9
3.8
0.3
8.97
933
2.3
24
Prolonged sunshine 26th. Clear am 27th
27
28
1013.7
6.6
89
5
SE
9.0
11.3
4.2
3.1
– 0.1
7.00
868
2.0
17
Sunny periods 27th. Rain am 28th
28
29
1018.3
5.9
89
5
E
8.0
11.1
1.4
0.0
– 4.0
8.90
965
2.8
16
Showers am 28th. Clear overnight 28th/29th then shower
29
30
1014.9
6.8
74
7
ENE
9.0
10.7
3.9
0.0
– 2.5
11.14
949
3.0
18
Sunny periods 29th. Clear spells am 30th
30
31
31
 
 
Total/
Mean
10.8
4.9
95.3
– 4.5
159.26
1013
58.4
52
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
Temperature
(°C)
2Mean Minimum
Temperature
(°C)
3Total Rainfall
(mm)
4GrassMin
Temperature
lowest
(°C)
5Total Sunshine
(Hours)
Solar
Rad'n highest
( W/m2)
7Total ET
(mm)
6Maximum
Wind Speed
(mph)
 
  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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