Page updated January 1, 2018 12:01
Link to November 2017 ..Link to January 2018

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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)
4.6
0.0
0.0
– 4.2
3.59
142
0.5
22
 Dull 14th, light ra/sn showers. Heavy snow sh am 15th
15
16
1015.4
1.3
85
5
W
1.5
600'-800' (PML)
6.3
0.3
0.3
– 2.5
2.36
165
0.5
15
 Sunny periods 15th. Clear skies am 16th. Icy
16
17
1011.8
6.3
92
20
SW
1.5
700'-1200'(PML)
9.2
– 0.7
0.5
– 5.1
0.05
86
0.8
42
 Sunny intervals 16th. Turning milder am 17th
17
18
1026.6
5.6
88
6
W
2.0
-
11.0
3.8
0.0
1.2
0.74
121
1.0
30
 Cloudy 17th. Broken cloud am 18th. Milder
18
19
1027.6
11.0
92
15
WSW
3.0
-
11.9
5.5
0.0
4.6
0.60
134
0.8
37
 Mainly cloudy 18th and am 19th. Milder
19
20
1028.7
11.0
95
8
W
4.0
-
11.0
10.3
0.0
9.0
2.88
142
0.8
37
 Mainly cloudy 19th and am 20th. Very mild
20
21
1031.8
8.7
77
8
W
4.5
-
9.2
6.4
0.0
4.8
0.46
86
0.5
20
 Sunny intervals 20th. Variable cloud am 21st.
21
22
1033.3
5.3
98
11
W
4.0
-
10.8
1.4
0.0
– 1.6
0.29
146
0.5
35
 Mainly cloudy 21st. Clearer skies ovenight 21st/22nd
22
23
1024.3
10.5
90
20
WSW
5.0
-
12.2
5.3
0.1
8.0
1.49
181
1.0
43
 Mainly cloudy 21st and am 22nd. Milder and windy
23
24
1008.5
10.0
85
29
WSW
6.0
-
10.6
10.0
7.9
9.1
0.00
86
1.0
51
 Sunny intervals 23rd. Cloudy, gusty winds am 24th
24
25
997.3
6.6
94
8
W
6.0
-
6.6
6.6
25.3
5.5
0.00
26
0.0
31
 Cloudy and windy 24th. Rain am 25th
25
26
988.6
1.2
94
10
W
5.0
3 cm
2.2
0.3
0.0
– 1.0
4.66
250
0.3
18
 Rain turning to snow late 25th. Snow am 26th
26
27
993.2
– 0.8
84
7
WNW
3.0
3 cm
1.6
– 0.9
0.0
– 3.6
4.49
155
0.5
26
 Sunny periods 26th. Clear skies am 27th. Ice
27
28
997.4
0.2
87
13
W
2.5
3 cm
2.6
– 0.9
0.0
– 2.0
5.23
153
0.5
26
 Sunny periods 27th. Clear skies am 28th. Ice
28
29
988.3
0.3
90
9
SSE
2.0
3 cm
2.9
– 1.5
2.3
– 5.0
0.00
105
0.3
21
Sunny periods 28th. Light snow am 29th. Ice
29
30
985.9
2.7
90
7
WSW
2.;0
2 cm
7.7
– 1.6
3.8
– 2.5
0.67
149
0.5
37
Snow am 29th. Rain and snow overnight 29th/30th. Ice
30
31
975.5
5.1
90
23
SW
3.0
1300' (P)
7.1
2.7
6.2
2.5
1.27
248
0.8
61
Thaw 30th with showers. Very windy am 31st.
31
 
Total/
Mean
6.6
2.2
60.3
– 10.0
60.49
279
19.4
61
  
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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