Deutsche Version Other things - weather

My little weather station ...

... would perhaps have been a more appropriate title, since this is what this page is supposed to be about. Since January 1994 I try to measure the temperature and rainfall for each day.

The methods

Normally I would have to measure the temperature several times a day in order to calculate a meaningful average value, but as I do not have that much free time, I just used to get one value at 9.00am. At the end of each month I have then calculated the average for the whole month.
It is easier to measure the rainfall. I have small tube with a scale in the garden which is my pluviometer. This should be fairly exact.
Since July 2001 there is a very important change in my system: As I have got a Linux server running all day anyway, I added a thermometer to it which now acquires a new data point every 30 minutes. I built the hardware according to this page and I am confident that my temperatures are pretty reliable now, too.

A word on the graphical representation: I once learned in my geography lessons that one defines the vegetation zones of the earth by counting the "dry" and "wet" months of a year. By "dry" and "wet" the following is meant: Draw a graph with a line for the average temperature and the total amount of rainfall for each month. You have to choose your coordinate system in a way that 2 mm rainfall correspond to 1 degree Celsius and 0 degree Celsius and 0 mm rainfall fall into the same point. You will now have months where the temperature line is above the rainfall line, this we call the "dry" months and you will see months where there has been "more rain than temperature" which are the "wet" months.
I do not know if this system really makes sense, but I had to use some system and this has been my choice.

The result

OK, enough talk on the background, here are the values I got over the years (all values without warranty). The column "year" contains the average temperature for the whole year respective the total amount of rainfall.

1994

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 4.01.87.08.014.218.1 22.618.412.59.18.34.5 10.7
Rain/mm 613558729329 6912780764975 784

1995

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 0.05.04.59.014.014.5 21.017.012.811.73.7-1.0 9.4
Rain/mm 22512523110510269 8860117515573 1298

1996

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C -2.2-1.02.87.312.917.0 18.017.410.07.36.0-4.0 7.6
Rain/mm 657251110969 968543919650 738

1997

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C -3.83.36.56.013.917.6 18.019.912.06.06.53.0 9.0
Rain/mm 298740345663 701916575168 590

1998

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 1.71.55.59.216.518.0 16.617.011.68.80.91.6 9.1
Rain/mm 411261864963 43551251535523 766

1999

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 1.9-0.44.57.013.015.5 18.318.016.08.03.32.5 9.0
Rain/mm 284277412156 5571453472100 642

2000

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 1.22.66.69.915.017.2 15.417.713.610.27.13.9 10.0
Rain/mm 476885356325 1717086717758 856

2001

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 1.92.65.47.314.814.9 20.620.212.913.34.31.1 9.9
Rain/mm 8383133651665 31581276511244 882

2002

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 1.36.57.110.114.919.6 18.919.713.810.67.23.4 11.1
Rain/mm 30172735411523 101884513412090 1045

2003

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 1.20.17.810.315.821.8 20.622.714.87.47.02.6 11.1
Rain/mm 72827258329 622425644653 518

2004

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 2.04.05.511.113.317.5 18.919.715.411.05.21.4 10.4
Rain/mm 771813278749 8617255674432 727

2005

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 3.30.36.111.214.919.0 20.017.616.311.75.22.0 10.7
Rain/mm 5263381008336 826843574054 716

2006

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C -1.21.33.810.114.918.8 23.916.618.013.18.14.7 11.1
Rain/mm 17421186610832 67186221054647 856

2007

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 6.05.77.313.716.119.1 19.018.313.59.24.62.1 11.2
Rain/mm 95118951167134 1257285119482 1079

2008

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 6.04.16.09.117.319.3 19.919.012.99.76.21.7 10.9
Rain/mm 51921311112243 757469813247 828

2009

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C -2.32.05.813.615.917.2 19.820.415.89.88.72.2 10.8
Rain/mm 226879357094 9821459099106 827

2010

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C -1.51.46.111.012.519.1 21.317.613.38.76.7-1.9 9.6
Rain/mm 8468423116676 10522570589563 1083

2011

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 2.52.97.213.616.118.4 17.519.016.510.14.85.0 11.2
Rain/mm 7531201726102 12014248472167 797

2012

Graph
Month JanFebMarAprMayJun JulAugSeptOctNovDec Year
Temp./C 3.2-1.58.29.916.717.5 19.520.514.19.35.83.7 10.6
Rain/mm 11415183887168 13588968668118 1031
contact me
Last change of this page: Jan 1, 2013