Klitch's Tonbridge Weather Station
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This page contains the March 2005 monthly stats and daily summaries for my own site readings.
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Back to February 2005
MARCH 2005
Forward to April 2005

Very much "a month of two halves", starting where February left off: cold and windy with frequent wintry showers. In spite of this, Tonbridge remained free of the snow cover which affected other nearby towns, particularly on the 2nd. The minimum temperature of -4.5º on the 4th was a new record March low for this site. The persistant blocking high to the NW of the British Isles finally started to decline in the 2nd week. The first half of this month was the coldest start to a March since 1987. A complete change on the 16th as mild southerly air brought the highest maximum temperature since the 30th September, and the 19th set a new site record for maximum temperature in March, beating the previous record of 20.3º in 1990. The month ended on a calm, cloudy, gloomy and damp note, but in spite of this, March was the 5th consecutive month with rainfall total significantly below average.

 MARCH 2005 - MONTHLY SUMMARY
 TEMPERATURE
 Average Maximum 11.2
ºc 
(+0.4º)*
 Average Minimum 4.4
ºc 
(+0.5º)*
 Monthly Mean 7.3
ºc 
(±0º)*
 Highest Maximum 20.9
ºc 
(19th)
 Lowest Minimum -4.5
ºc 
(4th)
 Days with Minimum <0ºc 5
 
 Lowest Wind Chill -4.5
ºc 
(4th)
 Highest Heat Index (THW) 20.3
ºc 
(19th)
 Highest Sun Index (THSW) 28.5
ºc 
(19th)
    
 
 RAINFALL
 Monthly Total 32.5
 mm
(69.6%)* 
 Rainy Days (=>0.3mm) 11
( -3)*
 Dry Days 20

(+3)*

 Highest Daily Total 10.9
 mm
(2nd)
 Highest Rain Rate 10.2
mm/hr
(30th)
 Snow Cover 0.5
 days
   
 
 Evapo-Transpiration 33.2
 mm
 WIND
 Monthly Average
1.9
 mph
 Highest Gust
27
 mph  (16th)
 Dominant Directions SSW   (27.9%)
N   (13.8%)
Calm   (10.8%)
NNW   (10.5%)
 DEWPOINT
 Average at 14.00h 4.2 ºc
 Highest Reading 12.1 ºc   (19th)
 Lowest Reading -7.5 ºc   (6th)
 RELATIVE HUMIDITY
 Average at 14.00h 67
 Lowest Reading 45 %   (26th)
 Monthly Average 78 %
 BAROMETER
 Monthly Mean 1016.3  hPa
 Highest Reading 1033.2  hPa  (9th)
 Lowest Reading 997.2  hPa  (2nd)

* = 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.
THW = Heat Index calculated with cooling/warming effect of wind and humidity.
THSW = Unshaded Heat Index calculated with cooling/warming effect of wind, humidity and full direct sunshine.

   MARCH 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
-0.1  6.3 74 1.8 1003.3 fs 2.8 2.4 13 SSW
2nd
0.5 1.5 93 0.1  997.9 s 10.9   2.5 19 N
3rd
-1.4  2.6 83 -1.7  1016.0 rs 0.0 3.9 25 N
4th
-4.5  6.1 80 2.3 1007.4 fs 1.3 1.9 18 SSW
5th
0.4 5.7 70 -0.9  1007.9 s  1.0 3.6 21 N
6th
-1.0  4.6 50 -5.6  1028.5 s  0.0 2.6 17 N
7th
-0.6  7.8 56 -1.0  1027.5 fs 0.0 1.5 13 N
8th
4.4 7.3 66 1.2 1029.2 s 0.3 1.4 13 N
9th
4.4 7.7 63 0.7 1032.3 fs 0.0 0.9 11 N
10th
4.1 7.5 78 3.3 1029.2 fs 0.5 0.2   7 SSW
11th
2.0 9.6 58 1.3 1012.2 fr 1.3 3.7 22 W
12th
1.9 7.8 49 -2.7  1008.2 s  0.0 2.5 18 N
13th
0.2 6.7 45 -4.5  1011.7 s  0.0 1.4 11 SSW
14th
2.1 9.2 55 0.2 1012.8 s  0.0 1.6 13 SSW
15th
4.3 11.3  77 6.3 1017.2 s  0.0 4.4 19 SSW
16th
10.3  17.8  52 7.3 1017.5 s  0.0 5.9 27 SSW
17th
10.5  15.8  66 9.2 1026.0 rs 0.0 4.6 24 SSW
18th
8.4 19.7  51 7.9 1027.2 fs 0.0 1.6 12 SSW
19th
3.3 20.9  58 12.1  1023.5 fs 0.0 0.3 10 ESE
20th
8.6 15.0  78 8.9 1019.3 fs 0.0 0.6 11 ESE
21st
5.6 15.2  65 8.0 1007.6 fs 0.0 0.8 12 ESE
22nd
11.7  14.8  72 9.7 1005.8 rs 2.8 3.4 21 SSW
23rd
7.2 18.1  57 8.1 1014.8 fs 0.0 1.0 12 SSW
24th
7.7 15.0  72 9.2 1012.8 s  1.5 1.5 13 SSW
25th
8.8 15.7  64 6.9 1015.6 fs 0.0 1.0 10 SSW
26th
2.0 18.1  45 6.0 1005.7 fs 0.0 0.5 10 ESE
27th
6.2 10.9  79 6.0 1006.1 rs 0.0 0.7   8 N
28th
7.7 17.2  58 5.8 1011.4 s  0.0 0.4   8 NNW
29th
5.9 8.6 88 6.4 1010.8 fs 7.4 0.6   8 WNW
30th
7.1 11.6  94 9.9 1013.0 rs 2.8 0.0   5 NNW
31st
7.9 10.4  93 8.5 1023.2 rs 0.0 0.3   8 SE
 
 
Barometer 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 blue then lighter colours (cyan, light green, yellow, magenta, red) being stronger.

This data excludes 'calm' readings.