Rainfall at Frackersaig

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Where and how the measurements are taken

The measurements are taken at Frackersaig by David and Catriona White every day at 09.00 GMT. The Met Office would like us to state that the figures are "as read - uncorrected" and we are happy to do this. David White then calculates the monthly totals and these are what we show in the table below.

This is a picture of the rain guage in its setting.
Rain guage image

How the figures in the table below are calculated

The figures that are on a white background and aren't bold are supplied by David White. These are the raw data (see below the graph).

The figures that are on a pinky background are calculated from the raw data before they are added to the page.

The columns of figures which are on a green background or a blue background or a yellow background are calculated when the page is running. They are calculated from the figures that are visible at the time. For example, if the page is showing the figures for the last 5 years, then the Ave (green background) will be the average of the 5 years figures, the Max (blue background) will be the maximum of the 5 values, and the Min (yellow background) will be the minimum of the 5 values.

The average for a month (Ave column with a green background) is calculated by adding all of the values visible for that month and then dividing by the number of values.

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All figures are in millimetres (mm)
  1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Ave Max Min  
Annual total 976.4 1628.5 1826.2 1583.9 1912.8 1923.7 2272.8 1782.4 2115.0 1516.1 1805.7 1506.4 1461.9 1584.2 2026.2 1993.6 1654.7 1415.2 1699.4 1406.5 1977.9 1763.6 1916.5 1672.1 1873.6 1898.0 1201.0 2417.9 1701.3 1627.2 2058.8 2305.7 1820.9 1778.8 540.3 Annual total
January 49.9 219.1 82.9 202.7 257.7 282.9 167.9 160.1 376.7 233.7 241.8 91.8 113.6 209.8 253.0 229.4 115.9 266.8 155.0 237.0 273.7 131.1 270.3 276.7 210.9 59.9 181.6 234.5 194.9 212.9 326.7 269.5 134.1 234.2 January
February 46.9 1.7 96.3 152.5 348.8 348.3 75.2 235.6 97.1 74.1 206.1 152.0 309.5 262.3 150.5 232.9 87.3 245.5 57.7 111.2 112.8 101.5 122.2 248.1 92.1 43.4 238.9 164.0 96.8 224.5 177.5 190.9 169.7 134.5 February
March 64.9 234.4 217.4 207.5 210.6 322.6 160.5 237.9 134.2 261.0 147.5 45.2 176.2 114.0 155.3 97.5 63.6 139.3 92.9 128.2 145.4 116.4 144.1 162.4 186.7 58.0 88.9 84.7 18.8 177.6 248.5 99.7 139.1 85.2 March
April 136.8 76.7 55.9 53.4 47.1 135.2 148.2 134.5 123.9 152.4 43.3 128.2 100.6 62.8 128.7 31.4 52.6 119.2 34.0 118.8 101.7 115.6 73.1 92.6 131.7 113.0 101.6 48.5 128.3 103.6 89.1 83.0 59.7 86.4 April
May 76.2 219.6 92.4 55.6 40.9 37.4 34.8 109.3 62.2 35.5 77.5 93.6 87.3 43.9 100.4 53.1 36.9 110.0 166.0 63.4 91.2 150.5 112.8 24.6 147.9 48.8 248.0 83.2 112.4 149.3 180.8 98.9 45.5 May
June 62.0 47.4 46.4 32.4 101.0 139.6 112.5 30.5 66.5 154.2 35.8 115.9 47.5 156.9 122.7 88.8 96.7 182.1 105.7 150.7 125.7 97.3 105.4 114.5 60.0 43.4 100.1 94.7 53.7 56.2 113.1 65.2 136.6 June
July 247.7 84.2 104.7 265.9 61.2 85.7 117.9 129.1 129.2 82.1 152.9 90.1 95.7 177.3 90.5 30.0 138.8 113.8 124.7 96.5 47.6 108.1 80.8 83.0 131.5 197.9 56.2 98.5 63.8 146.4 176.8 182.3 143.2 July
August 57.6 269.1 105.6 133.5 233.9 284.5 117.6 105.0 314.3 87.7 152.3 26.3 69.7 93.9 194.7 110.5 120.5 145.9 97.0 61.0 211.7 188.2 86.8 152.2 135.0 266.0 119.5 184.3 156.8 128.2 143.6 160.3 157.5 177.6 August
September 263.4 215.2 60.2 227.6 199.3 145.5 186.5 181.1 187.8 39.2 76.6 130.8 87.8 163.0 103.7 214.5 173.3 115.6 65.9 95.0 244.9 175.3 194.4 92.5 76.5 117.1 155.7 272.6 158.6 116.1 44.2 34.9 246.1 194.8 September
October 244.0 101.7 181.7 221.1 183.1 269.2 302.2 189.1 131.2 35.0 162.1 299.2 302.9 114.1 278.2 126.3 259.8 275.6 155.7 74.0 185.9 202.7 198.4 187.6 283.8 197.8 195.0 317.1 163.5 219.3 372.2 116.8 73.1 244.6 October
November 220.9 154.3 257.8 128.2 120.7 75.8 81.3 317.7 264.9 94.6 142.5 124.0 211.0 95.7 195.4 244.7 128.8 189.5 154.2 265.5 134.6 179.2 282.2 165.7 199.8 285.0 130.4 232.3 221.7 146.0 160.3 290.9 159.9 165.4 November
December 190.5 203.8 337.8 177.5 205.8 81.4 233.5 172.5 179.8 269.8 279.2 21.2 73.7 187.1 227.2 296.5 209.2 96.8 49.9 175.0 295.0 120.1 334.2 165.4 176.6 71.3 36.0 396.3 192.6 348.9 268.0 390.3 194.8 168.5 December

This is the chart of the figures in the column


The raw data

If you would like to play with the raw data, you can download it in tab delimited format here (rainfall_frackersaig.txt).
Either:

Why not perform your own analysis of these data and email us your results? We would love to see what you have found.

The format of the file

The format is tabular and can be thought of as rows and columns.

There are 13 lines (rows) of text – a title row that contains the years as column headings and one row for each month (January to December).
There will be one more 'column' than there are years of information. (The extra column contains the names of the months.)

The first line consists of (a TAB followed by a year) repeated for every year.
The other 12 lines start with the name of a month. Then there is (a TAB followed by the rainfall for that month in that year) repeated for every year.

How to use the file

This file can be loaded into a variety of different applications

Type of program Example How to do it
Text editor Windows Notepad,
gEdit
  • From the File menu, select Open.
  • Select rainfall_frackersaig.txt
Spreadsheet Microsoft Excel 2000
  • From the File menu, select Open.
  • In the Files of type combo box, select Text Files (*.prn; *.txt; *.csv)
  • Select rainfall_frackersaig.txt and click the Open button. The Text Import Wizard dialog box will appear.
  • Make sure that the Delimited radio button is selected and click the Next button.
  • Make sure that the Tab check box is ticked and that all the others are clear.
    At this point it should be possible to see the data as rows and columns.
    Click the Next button.
  • Click the Finish button. The data should now be in the spreadsheet.
Spreadsheet LibreOffice 3 Calc
  • From the File menu, select Open.
  • In the combo box to the right of the File name box, select Text CSV (*.csv, *.txt)
  • Select rainfall_frackersaig.txt and click the Open button. The Text Import dialog box will appear.
  • Make sure that the Separated by radio button is selected.
    Make sure that the Tab check box is ticked and that all the others are clear.
    At this point it should be possible to see the data as rows and columns.
    Click the OK button. The data should now be in the spreadsheet.

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