Page updated December 6, 2019 18:00
Link to November 2019..Link to January 2020

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 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
1027.6
– 0.7
94
6
WNW
2.5
5.4
– 2.1
1.1
– 5.8
6.01
195
0.33
17
Prolonged sunshine 30th November. Clear am 1st with frost. 9.0 h
1
2
1028.7
5.4
94
9
W
2.5
7.2
– 0.7
4.8
– 1.1
0.00
83
0.41
35
Prolonged, hazy, sunshine 1st. Frost 1.2 h. Milder 2nd with cloud and light rain
2
3
1022.4
5.6
90
9
W
4.0
8.0
5.4
0.0
4.5
2.47
237
0.81
37
Rain 2nd. Dry am 3rd. Milder
3
4
1011.1
8.0
80
22
SW
4.0
8.3
4.2
0.7
0.8
0.27
113
0.84
42
Sunny intervals 3rd. Increasing winds and milder late pm 3rd and am 4th
4
5
1006.9
6.7
85
17
SW
4.0
11.8
5.8
3.6
4.0
0.00
95
1.02
53
Cloudy 4th with rain early pm. Cloudy and windy (47 mph) am 5th
5
6
991.0
10.1
94
12
W
5.5
5.8
5.5
0.04
188
Wet and windy 5th, gust 53 mph at 1800 GMT. Light rain am 6th
6
7
 
7
8
 
8
9
 
9
10
 
10
11
 
11
12
 
12
13
 
13
14
 
14
15
 
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
31
 
31
 
Total/
Mean
8.1
3.1
10.2
– 5.8
8.79
237
3.4
42
 
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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