Klitch's Tonbridge Weather Station
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This page contains the January 2005 monthly stats and daily summaries for my own site readings.
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JANUARY 2005
February 2005

With the UK squeezed between high pressure over Spain and a series of deep depressions running north of Scotland, the first week of 2005 was windy but mild and mostly dry. A deepening low pressure crossed Scotland on the 7th/8th bringing particularly stormy conditions to the UK, Denmark and Sweden. This was quickly followed by another intense low tracking north of Scotland bringing more windy and wet weather. The pattern of the first week then re-established itself, but with less wind and more sunshine. The clear skies brought the first air frost of 2005 on the 14th, followed by changeable and mild conditions again. The pattern changed on the 22nd with high pressure to the west of Ireland bring much cooler air from the north. There was a flurry of wet snow on the 24th which melted on reaching the ground and a very light dusting on the pre-dawn of the 26th. The weather remained cool but largely dry to the end of the month, resulting in the mildest January since 1990 and the driest since 1997.

 JANUARY 2005 - MONTHLY SUMMARY
 TEMPERATURE
 Average Maximum 8.9 ºc   (+1.6)*
 Average Minimum 4.7 ºc   (+2.0)*
 Monthly Mean 6.6 ºc   (+1.5)*
 Highest Maximum 12.7 ºc   (20th)
 Lowest Minimum -1.3 ºc   (14th)
 Days with Minimum <0ºc 1  
 Lowest wind chill -1.7 ºc   (24th)
 RAINFALL
 Monthly Total
24.4
 mm   (30.2%)* 
 Total Wet Days (>0.3mm)
14
          (-5)*
 Total Dry Days
17

          (+5)*

 Highest Daily Total
4.6
 mm     (10th)
 Highest Rain Rate
7.9
 mm/hr (1st)
 Snow Cover
0
 days
 WIND
 Monthly Average
3.7
 mph
 Highest Gust
37
 mph  (8th)
 Dominant Directions
SSW
  (33.8%)
N
  (15.7%)
NNW
  (13.4%)
SW
  (10.8%)
 DEWPOINT
 Average at 14.00h
3.5
ºc
 Highest Reading
10.4
ºc   (11th)
 Lowest Reading
-5.0
ºc   (26th)
 RELATIVE HUMIDITY
 Average at 14.00h
72
 Lowest Reading
49
%   (20th)
 Monthly Average
78
%
 BAROMETER
 Monthly Mean
1021.6
 hPa
 Highest Reading
1033.9
 hPa  (3rd)
 Lowest Reading
994.6
 hPa  (18th)

* = deviation from 20 year average. The monthly mean is calculated from all logged temperatures and is not the mean of the daily minimum and maximum.
   JANUARY 2005
TEMPERATURE ºc
HUMIDITY
PRESSURE
RAINFALL
WIND SPEED
WIND DIRECTION
DATE
Minimum
(< 09h)
Maximum
(< 21h)
RH %
at 14.00
Dewpoint ºc
at 14.00
hPa *
at 14.00
Day Total
(mm)
Average
(mph)
High Gust
(mph)
Dominant
(Compass)
1st
6.1
11.6 
90
8.1
1016.2 fr
1.8
3.9
26
SW
2nd
3.7
 7.7
62
0.5
1026.3 rr
0.0
3.2
18
WNW
3rd
4.1
10.0 
71
5.0
1031.8 fs
0.0
3.6
20
SW
4th
9.1
10.7 
81
7.1
1022.0 fs
0.8
6.0
26
SSW
5th
1.2
 8.8
80
4.6
1021.1 fr
0.5
2.9
19
SW
6th
4.7
10.9 
78
6.6
1028.7 fs
0.0
4.2
26
SSW
7th
10.5  
12.4 
78
8.5
1020.5 fs
0.0
9.0
31
SW
8th
9.4
 9.4
51
-0.7 
1016.0 rr
2.8
7.2
37
SSW
9th
6.3
12.0 
75
6.0
1019.4 fs
1.3
6.3
28
SSW
10th
11.8  
12.3 
90
9.4
1014.3 s 
4.6
6.0
25
SSW
11th
8.7
12.1 
91
9.5
1013.5 fs
4.1
5.6
26
SSW
12th
6.8
 9.6
58
1.6
1020.6 s 
0.0
4.3
21
SSW
13th
3.0
 8.6
59
1.0
1029.3 s 
0.0
1.1
11
SSW
14th
-1.3 
 8.2
60
0.6
1027.4 fs
0.0
1.0
14
SE
15th
5.6
10.1 
61
3.2
1023.1 fs
0.5
0.6
11
SE
16th
0.4
 9.9
86
7.1
1020.2 s 
0.0
2.1
17
SSW
17th
6.3
 9.8
85
7.2
1010.2 fr
2.3
6.1
26
SSW
18th
2.6
 6.5
64
-1.1 
 999.0 s
0.8
4.1
20
W
19th
3.4
 9.7
70
3.1
1013.1 fs
0.0
2.7
16
SSW
20th
9.6
12.7 
72
7.8
1008.3 fs
1.0
5.3
25
W
21st
5.2
 8.4
55
-0.2 
1016.0 s 
0.0
2.8
22
N
22nd
0.4
 6.3
66
0.1
1019.3 fs
Trace
0.0
  5
SE
23rd
1.7
 5.8
60
-1.7 
1028.1 fs
0.0
3.1
19
N
24th
1.6
 4.1
75
-0.4 
1028.9 s 
0.8
5.2
25
NNW
25th
1.4
 5.0
58
-2.8 
1027.5 s 
0.0
2.7
16
NNW
26th
0.4
 4.8
53
-4.1 
1032.2 fs
0.0
1.5
14
N
27th
1.2
 6.8
90
3.7
1022.8 fs
0.5
3.2
19
NNW
28th
5.2
 6.7
89
4.6
1016.6 s 
2.5
4.9
22
N
29th
4.4
 7.6
74
3.0
1026.9 rs
0.3
2.2
13
NNW
30th
5.6
 7.5
74
2.7
1032.2 fs
0.0
0.9
11
N
31st
5.6
 9.9
78
6.0
1030.1 fs
0.0
1.6
16
N
 
 
* Trend: f = falling, s = steady, r = rising; r = rapidly, s = slowly

'WIND ROSE' PLOT FOR THE MONTH
The 'petals' represent wind direction and the length represents frequency, i.e. in this case winds from the SSW were the most common, followed by the N.

The colours represent the strength of the wind, with black being weakest through dark and medium blue then lighter colours (cyan, light green, yellow, magenta, red) being stronger