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UKCP09: Time series of monthly values

Each zipped file is selected by clicking on the table below. The zipped files contain time series of values for the chosen climate variable in multi-year blocks. The data files are named according to the following convention:

variablename_yyyy-yyyy.csv

where yyyy and yyyy indicate the start and end of the period.

Climate variables available to download:

Mean daily maximum temperature (°C)

Years Last updated Download
1910–1920 1 June 2009 MaxTemp_1910-1920 (ZIP, 2.6 MB)
1921–1940 1 June 2009 MaxTemp_1921-1940 (ZIP, 4.7 MB)
1941–1960 1 June 2009 MaxTemp_1941-1960 (ZIP, 4.7 MB)
1961–1980 1 June 2009 MaxTemp_1961-1980 (ZIP, 4.7 MB)
1981–2000 1 June 2009 MaxTemp_1981-2000 (ZIP, 4.7 MB)
2001–2006 1 June 2009 MaxTemp_2001-2006 (ZIP, 1.4 MB)
2007-2011 28 June 2013 MaxTemp_2007-2011 (ZIP, 1.2 MB)

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Mean daily minimum temperature (°C)

Years Last updated Download
1910–1920 1 June 2009 MinTemp_1910-1920 (ZIP, 2.5 MB)
1921–1940 1 June 2009 MinTemp_1921-1940 (ZIP, 4.5 MB)
1941–1960 1 June 2009 MinTemp_1941-1960 (ZIP, 4.5 MB)
1961–1980 1 June 2009 MinTemp_1961-1980 (ZIP, 4.5 MB)
1981–2000 1 June 2009 MinTemp_1981-2000 (ZIP, 4.5 MB)
2001–2006 1 June 2009 MinTemp_2001-2006 (ZIP, 1.4 MB)
2007-2011 28 June 2013 MinTemp_2007-2011 (ZIP, 1.2 MB)

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Mean air temperature (°C)

Years Last updated Download
1910–1920 1 June 2009 MeanTemp_1910-1920 (ZIP, 2.5 MB)
1921–1940 1 June 2009 MeanTemp_1921-1940 (ZIP, 4.6 MB)
1941–1960 1 June 2009 MeanTemp_1941-1960 (ZIP, 4.6 MB)
1961–1980 1 June 2009 MeanTemp_1961-1980 (ZIP, 4.6 MB)
1981–2000 1 June 2009 MeanTemp_1981-2000 (ZIP, 4.6 MB)
2001–2006 1 June 2009 MeanTemp_2001-2006 (ZIP, 1.4 MB)
2007-2011 28 June 2013 MeanTemp_2007-2011 (ZIP, 1.2 MB)

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Days of air frost

Years Last updated Download
1961–1980 1 June 2009 AirFrost_1961-1980 (ZIP, 3.8 MB)
1981–2000 1 June 2009 AirFrost_1981-2000 (ZIP, 3.7 MB)
2001–2006 1 June 2009 AirFrost_2001-2006 (ZIP, 1.1 MB)
2007-2011 28 June 2013 AirFrost_2007-2011 (ZIP, 930 KB)

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Days of ground frost

Years Last updated Download
1961–1980 1 June 2009 GroundFrost_1961-1980 (ZIP, 4.6 MB)
1981–2000 1 June 2009 GroundFrost_1981-2000 (ZIP, 4.6 MB)
2001–2006 1 June 2009 GroundFrost_2001-2006 (ZIP, 1.4 MB)
2007-2011 28 June 2013 GroundFrost_2007-2011 (ZIP, 1.2 MB)

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Days of sleet or snow falling

Years Last updated Download
1971–1980 1 June 2009 SnowFall_1971-1980 (ZIP, 1.6 MB)
1981–2000 1 June 2009 SnowFall_1981-2000 (ZIP, 2.9 MB)
2001-2006 28 June 2013 SnowFall_2001-2006 (ZIP, 670 KB)
2007-2011 28 June 2013 SnowFall_2007-2011 (ZIP, 600 KB)

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Days of snow lying

Years Last updated Download
1971–1980 1 June 2009 SnowLying_1971-1980 (ZIP, 1.2 KB)
1981–2000 1 June 2009 SnowLying_1981-2000 (ZIP, 2.2 MB)
2001–2006 1 June 2009 SnowLying_2001-2006 (ZIP, 600 KB)
2007-2011 28 June 2013 SnowLying_2007-2011 (ZIP, 550 KB)

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Precipitation (mm)

Years Last updated Download
1910–1920 1 June 2009 Rainfall_1910-1920 (ZIP, 3.3 MB)
1921–1940 1 June 2009 Rainfall_1921-1940 (ZIP, 6.0 MB)
1941–1960 1 June 2009 Rainfall_1941-1960 (ZIP, 6.0 MB)
1961–1980 1 June 2009 Rainfall_1961-1980 (ZIP, 6.0 MB)
1981–2000 1 June 2009 Rainfall_1981-2000 (ZIP, 6.0 MB)
2001–2006 1 June 2009 Rainfall_2001-2006 (ZIP, 1.8 MB)
2007-2011 28 June 2013 Rainfall_2007-2011 (ZIP, 1.6 MB)

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Days of rainfall ≥1 mm

Years Last updated Download
1961–1980 1 June 2009 RainDays1_1961-1980 (ZIP, 4.8 MB)
1981–2000 1 June 2009 RainDays1_1981-2000 (ZIP, 4.8 MB)
2001–2006 1 June 2009 RainDays1_2001-2006 (ZIP, 1.5 MB)
2007-2011 28 June 2013 RainDays1_2007-2011 (ZIP, 1.2 MB)

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Days of rainfall ≥10 mm

Years Last updated Download
1961–1980 1 June 2009 RainDays10_1961-1980 (ZIP, 4.00 MB)
1981–2000 1 June 2009 RainDays10_1981-2000 (ZIP, 4.00 MB)
2001–2006 1 June 2009 RainDays10_2001-2006 (ZIP, 1.2 MB)
2007-2011 28 june 2013 RainDays10_2007-2011 (ZIP, 1.00 MB)

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Sunshine duration (hours per day)

Years Last updated Download
1929–1940 1 June 2009 Sunshine_1929-1940 (ZIP, 2.0 MB)
1941–1960 1 June 2009 Sunshine_1941-1960 (ZIP, 4.0 MB)
1961–1980 1 June 2009 Sunshine_1961-1980 (ZIP, 4.0 MB)
1981–2000 1 June 2009 Sunshine_1981-2000 (ZIP, 4.0 MB)
2001–2006 1 June 2009 Sunshine_2001-2006 (ZIP, 1.2 MB)
2007-2011 28 June 2013 Sunshine_2007-2011 (ZIP, 1.2 MB)

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Mean sea-level pressure (hPa)

Years Last updated Download
1961–1980 1 June 2009 MSLPressure_1961-1980 (ZIP, 4.7 MB)
1981–2000 1 June 2009 MSLPressure_1981-2000 (ZIP, 4.8 MB)
2001–2006 1 June 2009 MSLPressure_2001-2006 (ZIP, 1.4 MB)
2007-2011 28 June 2013 MSLPressure_2007-2011 (ZIP, 1.1 MB)

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Mean vapour pressure (hPa)

Years Last updated Download
1961–1980 1 June 2009 VapourPressure_1961-1980 (ZIP, 4.1 MB)
1981–2000 1 June 2009 VapourPressure_1981-2000 (ZIP, 4.2 MB)
2001–2006 1 June 2009 VapourPressure_2001-2006 (ZIP, 1.2 MB)
2007-2011 28 June 2013 VapourPressure_2007-2011 (ZIP, 21.0 MB)

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Mean relative humidity (%)

Years Last updated Download
1961–1980 1 June 2009 RelativeHumidity_1961-1980 (ZIP, 4.7 MB)
1981–2000 1 June 2009 RelativeHumidity_1981-2000 (ZIP, 4.7 MB)
2001–2006 1 June 2009 RelativeHumidity_2001-2006 (ZIP, 1.4 MB)
2007-2011 28 june 2013 RelativeHumidity_2007-2013 (ZIP, 1.2 MB)

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Mean wind speed (knots)

Years Last updated Download
1969–1980 1 June 2009 MeanWindSpeed_1969-1980 (ZIP, 2.7 MB)
1981–2000 1 June 2009 MeanWindSpeed_1981-2000 (ZIP, 4.4 MB)
2001–2006 1 June 2009 MeanWindSpeed_2001-2006 (ZIP, 1.3 MB)
2007-2011 28 June 2013 MeanWindSpeed_2001-2006 (ZIP, 1.1 MB)

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Mean cloud cover (%)

Years Last updated Download
1961–1980 1 June 2009 CloudCover_1961-1980 (ZIP, 5.0 MB)
1981–2000 1 June 2009 CloudCover_1981-2000 (ZIP, 5.0 MB)
2001–2006 1 June 2009 CloudCover_2001-2006 (ZIP, 1.6 MB)

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Related internet links

Department for Environment, Food and Rural Affairs (Defra)

UK Climate Impacts Programme (UKCIP)

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