Page updated October 1, 2019 11:48
Link to August 2019..Link to October 2019

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 Station
September 2019 (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
1011.3
12.9
77
11
WNW
15.5
16.1
9.5
0.0
7.1
8.76
881
3.12
29
 Sunny intervals 31st August, gusty winds. Clear am 1st September
1
2
1015.3
12.3
85
14
SW
15.0
15.9
9.9
0.1
5.7
2.08
879
2.36
41
 Sunny periods 1st. Clear, turning cloudy am 2nd
2
3
1015.5
15.8
88
12
WSW
16.0
17.8
8.6
5.1
12.0
0.42
578
1.52
34
 A few sunny intervals 2nd, gusty winds pm. Milder am 3rd
3
4
1005.3
12.1
82
12
WSW
16.0
16.1
9.5
1.8
8.6
3.82
970
1.92
32
 Showers pm then rain later 3rd. Clear then showers am 4th
4
5
1021.5
11.1
83
11
W
14.5
16.8
7.9
0.4
7.3
4.82
796
2.95
32
 Sunny intervals and showers (pm) 4th. Clear am 5th
5
6
1012.0
11.7
84
12
W
14.0
16.4
10.7
0.0
7.3
7.27
907
2.87
44
 Sunny intervals 5th. Showers am 6th.
6
7
1024.7
9.6
78
4
NW
14.0
15.3
7.9
0.0
6.0
10.25
840
2.06
13
 Sunny intervals 6th. Clear am 7th
7
8
1023.7
12.2
81
4
NNW
14.0
16.7
6.2
13.2
6.0
10.48
853
2.51
20
 Sunny periods 7th. Clear am 8th
8
9
1009.0
10.8
95
13
SSW
14.0
14.9
10.7
7.0
10.5
0.00
313
0.79
28
 Sunny periods 8th. Rain overnight and am 9th
9
10
1017.7
11.4
97
4
SSE
14.0
16.0
10.8
3.6
10.5
1.96
710
1.57
46
 Rain am 9th. Cloudy pm. Rain am 10th
10
11
1007.6
13.3
89
13
W
15.0
16.6
12.0
0.0
9.6
7.29
837
2.51
41
 Showers evening 10th. Rain am 11th. Gusty winds easing
11
12
1017.7
14.7
85
9
SW
14.0
16.7
11.6
0.2
9.5
2.22
624
1.78
26
Sunny intervals 11th. Cloudy am 12th
12
13
1033.0
12.5
78
11
W
14.0
16.9
9.4
0.0
7.0
11.41
751
3.05
26
 A few sunny intervals 12th, clear am 13th
13
14
1026.2
12.9
77
17
SW
13.5
16.7
10.8
0.1
6.9
0.47
455
2.46
43
 Sunny periods 13th. Becoming cloudy and windy am 14th
14
15
1019.7
10.4
80
15
W
14.0
14.7
9.8
0.0
7.1
4.46
564
1.88
31
 Mainly cloudy14th, shower late pm. Cloudy am 15th. Gusty throughout
15
16
1021.6
11.5
84
10
W
13.0
15.6
7.9
0.0
4.1
9.30
742
2.62
27
 Sunny intervals 15th. Clear am 16th
16
17
1025.5
11.2
74
8
WNW
12.0
15.2
7.9
0.0
4.5
8.40
763
2.46
24
 Sunny periods 16th. Clear am 17th
17
18
1028.8
11.9
78
6
W
13.0
16.6
8.3
0.0
4.0
9.88
703
1.83
22
 Sunny periods 17th. Clear turning cloudy from north-west am 18th
18
19
1030.4
12.7
91
9
W
13.5
18.8
10.8
0.0
8.9
6.95
768
2.11
20
 Sunny periods 18th. Cloudy am 19th
19
20
1025.8
15.3
69
1
E
13.0
21.1
9.8
0.0
6.0
12.19
570
2.72
19
 Sunny intervals 19th. Clear skies overnight 19th/20th
20
21
1013.8
14.3
74
SSE
9
13.0
22.0
9.9
0.0
6.7
11.82
550
3.25
28
 Unbroken sunshine 20th. Clear skies am 21st
21
22
1003.8
11.9
97
ESE
2
13.0
14.8
10.0
17.1
5.0
0.00
237
0.48
10
 Unbroken hazy sunshine 21st. Fog am 22nd
22
23
1004.2
14.4
91
SSW
11
13.5
18.1
12.4
2.2
11.2
8.37
721
2.18
24
 Fog/low cloud all day, rain pm heavy in evening. Showers am 23rd
23
24
998.6
15.0
95
SE
4
14.5
17.3
12.6
16.1
10.9
0.72
550
0.76
19
 Sunny periods 23rd. Showers late pm 23rd and am 24th
24
25
996.2
13.2
98
S
3
13.5
16.6
12.7
1.7
12.1
0.04
366
0.84
19
 Mainly cloudy 24th with rain, heavy at times, in evening. Cloud, drizzle am 25th
25
26
992.4
13.1
88
WSW
7
14.0
15.6
12.4
0.5
10.5
2.54
510
1.35
25
 Cloudy 25th. Showers am 26th
26
27
993.7
11.5
87
SSW
7
13.5
12.1
9.4
11.4
6.3
1.56
229
0.58
28
 A few sunny intervals 26th, occ showers. Clear am 27th, 1 shower.
27
28
999.2
10.7
94
W
7
12.5
15.2
9.2
1.4
6.8
8.11
645
1.52
21
 Rain afternoon 27th. Clear spells overnight 27th/28th
28
29
996.9
10.9
96
ENE
8
12.5
12.4
8.4
0.0
5.0
0.00
158
0.33
19
Sunny periods 28th. Cloudy with light rain from E am 29th
29
30
1008.4
11.6
88
NNW
3
12.5
12.2
9.5
3.4
6.1
0.09
306
0.79
17
Dull 29th. Cloudy am 30th
30
31
                                
31
 
Total/
Mean
16.2
9.9
85.3
4.0
155.68
970
57.17
46
  
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)
 
  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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