Page updated December 2, 2015 15:55
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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 Site
December 2014 (Means and totals to date are at foot of table)
 
  0900 hours readings
 Daily  Readings (See notes at foot of page)
Weather in previous 24h (to 0900 on date)Blue >50% snow cover @09
Date
Date
Pressure
(mb)
Temperature
(°C)
Relative
Humidity
(%)
Wind
Speed
(mph)
Wind
Direction
Soil Temp
at 20cm
(°C)
Snow
Depth
(cm)
1Maximum
Temperature
(°C)
2Minimum
Temperature
(°C)
3Rainfall
(mm)
4GrassMin
Temp (°C)
5Sunshine
(Hours)
6Max
Wind Speed
(mph)
1
1013.7
8.1
89
9
SW
7.0
-
8.8
4.0
2.3
-0.3
0.00
22
 Sunny periods 30th November. Variable cloud am 1st December
1
2
1022.8
2.5
83
7
WNW
6.5
-
5.7
2.5
0.1
-0.2
5.32
15
 Cloudy and dull 1st with rain late pm. Clearing skies am 2nd
2
3
1026.9
6.0
90
10
W
6.0
-
8.4
2.5
0.0
0.7
2.84
18
 Sunny periods 2nd. Variable cloud am 3d
3
4
1018.3
5.4
78
13
SW
6.0
-
5.7
4.5
0.0
0.8
0.00
21
 Sunny intervals 3rd. Variable cloud am 4th
4
5
1016.2
3.1
86
10
W
6.0
-
4.4
3.1
0.0
1.0
5.08
20
 Cloudy 4th. Clearing skies overnight 4th/5th
5
6
1020.9
6.6
90
20
WSW
5.0
-
9.2
1.4
3.6
-0.6
0.12
43
 Sunny periods 5th. Cloudy and windy am 6th
6
7
1006.0
3.2
81
13
W
5.5
-
3.9
1.7
3.6
0.4
2.42
38
 Cloudy 6th with rain pm. Showers turning wintry am 7th. Hail and snow.
7
8
1009.8
1.9
92
17
W
4.5
1
5.2
0.8
0.3
-0.2
3.99
33
 Snow and hail showers 7th. Snow showers am 8th, thin covering @ 09h
8
9
1012.1
5.2
87
21
SW
4.0
-
10.4
1.7
13.0
-0.5
0.00
52
 Sunny intervals 8th. Clouding over am 9th with gusty winds. Milder
9
10
997.7
2.2
94
22
WSW
4.0
-
4.1
1.2
7.6
-0.1
0.78
49
 Squally showers 9th, cold front through @17h. Rain and snow showers am 10th
10
11
993.5
1.0
95
14
W
3.5
2
2.7
0.4
3.8
-0.1
1.28
42
 Thundersnow shower late am 10th. Frequent snow showers am 11th. 2cm @ 09h
11
12
987.2
0.3
90
13
W
3.5
3
3.3
0.1
1.3
-1.5
0.77
31
 Snow/hail showers 11th. Snow showers early 12th. 3cm @ 09h
12
13
1006.1
1.9
86
13
WSW
3.5
2
6.7
0.0
0.3
-2.0
1.81
43
 Mainly cloudy 12th. Clear skies am 13th. 2cm @ 09h
13
14
994.1
6.5
90
20
WSW
4.0
-
7.7
1.9
3.8
1.9
0.00
51
 RaSn sh with hail early pm 13th. Turning progressively milder 13th/14th. Thaw
14
15
1004.2
2.9
87
11
W
4.0
-
4.3
2.3
0.7
0.1
3.76
31
 Cloudy 14th with rain 1130h-1330h. Clearer skies am 15th
15
16
1009.8
2.1
81
6
W
3.5
-
9.8
1.8
1.8
-1.5
4.04
40
 Sunny intervals 15th. Clear am 16th
16
17
996.4
8.8
89
16
W
4.5
-
10.9
1.8
0.5
2.1
0.26
35
 Sunny intervals 16th with cloud and rain later. Much milder overnight 17th/18th
17
18
992.7
10.9
90
23
WSW
6.0
-
11.7
7.7
5.8
5.4
0.00
41
 Cloudy 17th and am 18th
18
19
1001.4
2.5
89
10
W
5.0
-
5.1
2.5
4.1
0.3
2.73
41
 Cold front 1100h 18th T° fell by 4°C in 1 hr. Showers RaSn Hail am 19th
19
20
1014.5
4.4
83
14
WNW
5.0
-
8.1
2.2
0.3
0.4
4.13
40
 Showers less wintry pm 19th. Becoming less cold overnight
20
21
1012.4
8.1
90
19
WSW
5.0
-
11.1
4.3
20.9
4.0
0.00
52
 Sunny intervals 20th. Cloudy overnight and am 21st. Milder
21
22
1002.5
6.9
95
21
W
6.0
-
7.2
6.2
3.1
4.9
0.12
34
 Rain throughout 21st and 22nd. Gust 52mph @1250 0n 21st
22
23
1003.9
5.6
89
14
WSW
6.0
-
6.3
5.4
1.5
3.8
0.00
36
 Rain am 22nd and am 23rd
23
24
1006.3
3.6
93
14
W
4.5
-
5.6
2.9
4.6
1.6
2.09
38
 Cloudy 23rd. Heavy shower 0845 24th
24
25
1024.0
2.8
94
9
W
4.5
-
4.6
2.8
0.3
0.3
1.92
19
 Showers, some heavy with hail 24th. Clear skies early am 25th.
25
26
1024.5
0.9
98
1
SSE
3.5
-
2.0
-1.2
0.1
-6.1
0.41
12
 Sunny intervals 25th. Clear skies early am 26th. 8.8 hours of frost
26
27
1009.0
0.7
95
9
W
3.5
-
2.0
0.3
0.1
-1.3
0.22
17
 Fog at times 26th. Mainly cloudy am 27th
27
28
1031.2
1.9
82
4
WNW
3.5
-
4.4
0.6
0.0
-1.9
5.23
15
 Cloudy 27th with sn/hail sh mid am. Less cloud am 28th.
28
29
1038.3
2.7
94
8
WNW
3.0
-
6.2
0.7
0.0
-2.0
4.98
36
 Prolonged sunshine 28th. Clear spells am 29th
29
30
1032.3
6.1
87
15
W
3.5
-
7.9
2.2
0.0
-0.2
3.34
38
 Prolonged sunshine 29th. Cloudy later and turning milder overnight 29th/30th
30
31
1022.0
7.8
80
19
SW
4.0
-
10.4
4.9
3.3
4.0
0.04
44
 Sunny periods 30th. Wave cloud and lunar halo 0030 31st. Milder
31
Total/
Mean
  
       
.
6.6
2.4
86.8
  
57.68
*Ice Day is Tmax <0.0º 0900-0900 
Date
 
Pressure
(mb)
Temperature
(°C)
Relative
Humidity
(%)
Wind
Speed (mph)
Wind
Direction
Soil Temp
at 20cm
(°C)
Snow
Depth
(cm)
1Maximum
Temperature
(°C)
2Minimum
Temperature
(°C)
3Rainfall
(mm)
4GrassMin'm
Temperature
(°C)
5Sunshine
(Hours)
6Maximum
Wind Speed
(mph)
 
  0900 hours readings
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
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
* 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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