Trends in warm days and cool nights across Europe

Figure Created 19 Nov 2012 Published 29 Nov 2012 Last modified 05 Feb 2018
1 min read
Warm days are defined as being above the 90th percentile of the daily maximum temperature and cool nights as below the 10th percentile of the daily minimum temperature (Alexander et al., 2006). Grid boxes outlined in solid black contain at least three stations and so are likely to be more representative of the grid-box. High confidence in the long-term trend is shown by a black dot. (In the maps above, this is the case for all grid boxes.) Area averaged annual time series of percentage changes and trend lines are shown below each map for one area in northern Europe (green line, 5.6 ° to 16.9 °E and 56.2 ° to 66.2 °N) and one in south-western Europe (purple line, 350.6 ° to 1.9 °E and 36.2 ° to 43.7 °N).

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information.png Last upload:
19 Nov 2012
information.png Temporal coverage:
information.png Tags:
, ,
information.png Geographic coverage:
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
information.png Methodology:

TREND: Calculated trend, in % (number of days in year per decade relative to 1961-1990)
SIG  : Significance of calculated trend

information.png Units:

days/decade

information.png Rights:
EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: Met Office United Kingdom, Royal Netherlands Meteorological Institute (KNMI).
information.png Owners:
Met Office United Kingdom
Royal Netherlands Meteorological Institute (KNMI)
information.png Processors:
European Environment Agency (EEA)
information.png Figure type:
Map

Additional information

Positive values indicate cooling trend (increase in frequency) and negative values indicate a warming trend (decrease in frequency).

Geographical coverage note: Europe

Related content

Data references

Related figures

Trends in cool nights across Europe Trends in cool nights across Europe How to read the map: Cool nights are defined as being below the 10th percentile of the daily minimum temperature. Grid boxes outlined in solid black contain at least 3 stations and so are likely to be more representative of the grid-box. Higher confidence in the long-term trend is shown by a black dot. Area averaged annual time series of percentage changes and trend lines are shown below each map for one area in northern Europe (Green line, 5.6 to 16.9 E and 56.2 to 66.2 N) and one in south-western Europe (Pink line, 350.6 to 1.9 E and 36.2 to 43.7 N).
Trends in warm days across Europe Trends in warm days across Europe How to read the map: Warm days are defined as being above the 90th percentile of the daily maximum temperature. Grid boxes outlined in solid black contain at least 3 stations and so are likely to be more representative of the grid-box. Higher confidence in the long-term trend is shown by a black dot. Area averaged annual time series of percentage changes and trend lines are shown below each map for one area in northern Europe (Green line, 5.6 to 16.9 E and 56.2 to 66.2 N) and one in south-western Europe (Pink line, 350.6 to 1.9 E and 36.2 to 43.7 N).

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For references, please go to https://www.eea.europa.eu/data-and-maps/figures/trends-in-warm-days-left or scan the QR code.

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