Page updated December 15, 2017 11:32
Link to November 2017 ..Link to January 2018

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
December 2017 (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)

4Grass Min Temp
(°C)
5Sunshine (Hours)

Solar
Rad'n High
(W/m2)

7ET
(mm)
6Max Wind
Speed (mph)
1
1027.4
1.3
79
7
W
2.5
-
6.5
0.3
0.0
– 2.6
2.99
279
0.8
19
Sunny intervals 30th November. Clear am 1st
1
2
1024.4
5.7
94
7
W
3.0
-
8.2
1.3
0.6
1.5
0.86
109
0.5
27
Sunny intervals 1st. Variable cloud am 2nd. Milder
2
3
1025.7
4.9
88
5
WNW
4.0
-
7.4
4.9
0.0
1.6
4.59
188
0.5
23
Mainly cloudy 2nd, showers evening. Clear am 3rd
3
4
1029.9
6.3
95
10
W
4.0
-
8.4
4.9
0.0
4.0
4.73
204
0.5
28
Sunny periods 3rd. Clear am 4th, orographic cloud
4
5
1027.2
6.7
92
14
W
5.0
-
9.3
6.3
0.0
5.0
0.00
105
0.8
40
Sunny periods 4th. Cloudy and mild am 5th
5
6
1016.2
9.3
81
16
SW
5.0
-
12.5
6.7
4.7
5.0
0.00
110
1.3
50
Cloudy 5th and am 6th. Still turning milder
6
7
994.6
5.0
89
18
W
6.0
-
5.9
5.0
0.3
3.0
1.30
163
1.0
50
Windy and mild 6th. Rain o'nt 6th/7th then colder
7
8
1010.5
– 0.6
75
12
WNW
4.0
1400' (P)
1.9
– 1.0
0.0
– 3.3
5.46
153
1.0
27
Light ra/sn evening of 7th. Frost am 8th, 5.7 hours
8
9
1012.7
– 0.3
85
10
W
3.0
1400' (P)
2.2
– 0.8
0.0
– 3.0
3.08
174
0.5
21
Prolonged sunshine 8th. Frost overnight, 13.3 hours
9
10
985.2
– 4.8
92
0
Calm
2.0
1400' (P)
– 0.7
– 5.0
0.0
– 9.3
4.65
160
0.3
15
Sunny periods 9th. Clear am 10th. Frost 18.2 hours
10
11
989.2
– 0.7
90
5
WNW
1.5
1400' (P)
2.4
– 4.8
0.0
– 10.0
1.54
149
0.3
16
Sunny periods 10th. Clear am 11th. Ice Day 24.0 hours
11
12
1002.5
2.4
84
16
WSW
2.0
1200' (P)
5.1
– 0.7
2.6
– 4.6
2.09
158
0.8
40
Light snow showers early pm 11th. Frost 1.2 hours
12
13
984.9
5.1
90
20
WSW
2.0
-
5.2
2.1
0.5
1.2
0.42
141
0.5
37
Sunny intervals 12th, rain late 12th/am 13th. Milder
13
14
979.8
2.3
91
16
WSW
2.0
1100' (P)
2.7
0.5
5.2
– 1.6
0.00
79
0.3
32
Light ra/sn showers 13th and am 14th. Icy overnight
14
15
1002.6
3.2
92
5
NW
1.5
700' (PML)
0.0
– 4.2
Dull 14th, light ra/sn showers. Heavy snow sh am 15th
15
16
 
16
17
 
17
18
 
18
19
 
19
20
 
20
21
 
21
22
 
22
23
 
23
24
 
24
25
 
25
26
 
26
27
 
27
28
 
28
29
 
29
30
 
30
 
Total/
Mean
5.5
1.3
13.9
– 10.0
31.71
279
9.1
50
 
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)


4Grass Min
Temperature
lowest
(°C)
5Total Sunshine
(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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