Weather highlights

The following unusual weather phenomena have been observed in the Campus of the National Technical University of Athens, between 05 August 2005 and 31 December 2011.

Phenomenon Date Value Remarks
heat
Heat

20 Jul 2011

32.0 °C

High air temperature observed between 2011-07-20 06:30 and 2011-07-21 07:20 (UTC +02:00). The most extreme conditions within 24 hours with air temperature 32.0°C on average have been observed starting from 2011-07-20 06:50. At the same time the humidity was 34.5%.

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storm
Storm

12 Jun 2011

10.8 mm

Intense rainfall observed between 2011-06-12 13:00 and 2011-06-12 13:20 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 10.8mm in total have been observed starting from 2011-06-12 13:10. At the same time the wind speed was 1.4m/s.

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heavy_rainfall
Heavy rainfall

12 Jun 2011

44.2 mm

Heavy rainfall observed between 2011-06-12 01:40 and 2011-06-13 00:10 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 44.2mm in total have been observed starting from 2011-06-12 05:00. At the same time the wind speed was 1.4m/s.

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wind_chill
Low felt air temperature

09 Mar 2011

-3.7 °C

Low felt air temperature (wind chill) observed between 2011-03-08 02:40 and 2011-03-10 07:00 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -3.7°C on average have been observed starting from 2011-03-09 23:10. At the same time the temperature was -2.6°C.

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frost
Frost

09 Mar 2011

-0.5 °C

Low air temperature observed between 2011-03-09 20:30 and 2011-03-10 08:00 (UTC +02:00). The most extreme conditions within 8 hours with air temperature -0.5°C on average have been observed starting from 2011-03-09 20:40. At the same time the humidity was 75.4%.

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wind_chill
Low felt air temperature

12 Dec 2010

-3.5 °C

Low felt air temperature (wind chill) observed between 2010-12-11 03:10 and 2010-12-12 05:40 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -3.5°C on average have been observed starting from 2010-12-12 05:20. At the same time the temperature was -3.0°C.

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windy
Windy

04 Dec 2010

8.2 m/s

Unusual windy conditions observed between 2010-12-04 12:00 and 2010-12-04 12:50 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 8.2m/s on average have been observed starting from 2010-12-04 12:10. At the same time the temperature was 20.2°C.

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storm
Storm

27 Oct 2010

16.4 mm

Intense rainfall observed between 2010-10-27 18:40 and 2010-10-27 19:00 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 16.4mm in total have been observed starting from 2010-10-27 18:40. At the same time the wind speed was 1.0m/s.

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windy
Windy

10 Feb 2010

7.8 m/s

Unusual windy conditions observed between 2010-02-10 17:40 and 2010-02-10 18:20 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 7.8m/s on average have been observed starting from 2010-02-10 17:50. At the same time the temperature was 14.3°C.

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wind_chill
Low felt air temperature

03 Feb 2010

-2.2 °C

Low felt air temperature (wind chill) observed between 2010-02-03 08:20 and 2010-02-03 08:50 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -2.2°C on average have been observed starting from 2010-02-03 08:20. At the same time the temperature was -0.4°C.

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wind_chill
Low felt air temperature

25 Jan 2010

-2.1 °C

Low felt air temperature (wind chill) observed between 2010-01-25 23:00 and 2010-01-25 23:30 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -2.1°C on average have been observed starting from 2010-01-25 23:10. At the same time the temperature was 1.1°C.

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windy
Windy

19 Dec 2009

8.0 m/s

Unusual windy conditions observed between 2009-12-19 20:00 and 2009-12-19 20:50 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 8.0m/s on average have been observed starting from 2009-12-19 20:10. At the same time the temperature was 16.1°C.

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windy
Windy

10 Nov 2009

8.0 m/s

Unusual windy conditions observed between 2009-11-10 11:30 and 2009-11-10 11:50 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 8.0m/s on average have been observed starting from 2009-11-10 11:30. At the same time the temperature was 21.0°C.

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storm
Storm

18 Mar 2009

8.4 mm

Intense rainfall observed between 2009-03-18 19:40 and 2009-03-18 19:50 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 8.4mm in total have been observed starting from 2009-03-18 19:40. At the same time the wind speed was 3.2m/s.

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windy
Windy

23 Jan 2009

9.0 m/s

Unusual windy conditions observed between 2009-01-22 21:40 and 2009-01-23 01:50 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 9.0m/s on average have been observed starting from 2009-01-23 00:30. At the same time the temperature was 15.4°C.

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windy
Windy

04 Dec 2008

8.7 m/s

Unusual windy conditions observed between 2008-12-04 04:40 and 2008-12-04 12:10 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 8.7m/s on average have been observed starting from 2008-12-04 05:20. At the same time the temperature was 17.8°C.

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windy
Windy

22 Nov 2008

7.8 m/s

Unusual windy conditions observed between 2008-11-22 12:10 and 2008-11-22 14:40 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 7.8m/s on average have been observed starting from 2008-11-22 14:20. At the same time the temperature was 21.0°C.

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windy
Windy

24 Mar 2008

7.6 m/s

Unusual windy conditions observed between 2008-03-24 14:30 and 2008-03-24 17:10 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 7.6m/s on average have been observed starting from 2008-03-24 16:50. At the same time the temperature was 19.6°C.

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frost
Frost

18 Feb 2008

-5.0 °C

Low air temperature observed between 2008-02-16 22:30 and 2008-02-19 08:40 (UTC +02:00). The most extreme conditions within 8 hours with air temperature -5.0°C on average have been observed starting from 2008-02-18 21:40. At the same time the humidity was 83.4%.

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wind_chill
Low felt air temperature

18 Feb 2008

-7.4 °C

Low felt air temperature (wind chill) observed between 2008-02-17 00:10 and 2008-02-19 08:40 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -7.4°C on average have been observed starting from 2008-02-18 09:00. At the same time the temperature was -3.5°C.

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frost
Frost

30 Jan 2008

-0.9 °C

Low air temperature observed between 2008-01-29 23:00 and 2008-01-30 09:00 (UTC +02:00). The most extreme conditions within 8 hours with air temperature -0.9°C on average have been observed starting from 2008-01-30 00:50. At the same time the humidity was 89.5%.

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wind_chill
Low felt air temperature

29 Jan 2008

-3.3 °C

Low felt air temperature (wind chill) observed between 2008-01-29 00:20 and 2008-01-30 07:00 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -3.3°C on average have been observed starting from 2008-01-29 03:40. At the same time the temperature was 0.7°C.

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windy
Windy

22 Oct 2007

8.7 m/s

Unusual windy conditions observed between 2007-10-22 09:50 and 2007-10-22 11:40 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 8.7m/s on average have been observed starting from 2007-10-22 11:00. At the same time the temperature was 20.6°C.

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storm
Storm

21 Oct 2007

11.4 mm

Intense rainfall observed between 2007-10-21 21:20 and 2007-10-21 21:30 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 11.4mm in total have been observed starting from 2007-10-21 21:20. At the same time the wind speed was 2.8m/s.

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heavy_rainfall
Heavy rainfall

21 Oct 2007

46.2 mm

Heavy rainfall observed between 2007-10-21 12:40 and 2007-10-22 09:20 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 46.2mm in total have been observed starting from 2007-10-21 17:40. At the same time the wind speed was 3.9m/s.

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heat
Heat

25 Jul 2007

34.7 °C

High air temperature observed between 2007-07-23 02:20 and 2007-07-26 17:50 (UTC +02:00). The most extreme conditions within 24 hours with air temperature 34.7°C on average have been observed starting from 2007-07-25 07:00. At the same time the humidity was 21.4%.

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heat
Heat

25 Jun 2007

34.9 °C

High air temperature observed between 2007-06-23 15:20 and 2007-06-29 02:00 (UTC +02:00). The most extreme conditions within 24 hours with air temperature 34.9°C on average have been observed starting from 2007-06-25 23:40. At the same time the humidity was 18.8%.

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windy
Windy

22 Mar 2007

7.7 m/s

Unusual windy conditions observed between 2007-03-22 18:50 and 2007-03-22 20:50 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 7.7m/s on average have been observed starting from 2007-03-22 20:20. At the same time the temperature was 14.0°C.

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heavy_rainfall
Heavy rainfall

22 Mar 2007

46.8 mm

Heavy rainfall observed between 2007-03-22 09:50 and 2007-03-23 02:30 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 46.8mm in total have been observed starting from 2007-03-22 12:20. At the same time the wind speed was 4.1m/s.

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windy
Windy

20 Mar 2007

9.6 m/s

Unusual windy conditions observed between 2007-03-20 23:00 and 2007-03-21 12:10 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 9.6m/s on average have been observed starting from 2007-03-20 23:10. At the same time the temperature was 16.1°C.

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heavy_rainfall
Heavy rainfall

11 Feb 2007

48.8 mm

Heavy rainfall observed between 2007-02-11 05:40 and 2007-02-12 02:10 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 48.8mm in total have been observed starting from 2007-02-11 10:20. At the same time the wind speed was 3.2m/s.

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wind_chill
Low felt air temperature

06 Feb 2007

-2.1 °C

Low felt air temperature (wind chill) observed between 2007-02-06 06:30 and 2007-02-06 07:40 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -2.1°C on average have been observed starting from 2007-02-06 06:30. At the same time the temperature was -2.1°C.

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frost
Frost

06 Feb 2007

-1.0 °C

Low air temperature observed between 2007-02-05 22:10 and 2007-02-06 08:50 (UTC +02:00). The most extreme conditions within 8 hours with air temperature -1.0°C on average have been observed starting from 2007-02-06 00:40. At the same time the humidity was 80.4%.

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windy
Windy

24 Jan 2007

7.9 m/s

Unusual windy conditions observed between 2007-01-24 16:30 and 2007-01-24 19:50 (UTC +02:00). The most extreme conditions within 20 minutes with wind speed 7.9m/s on average have been observed starting from 2007-01-24 16:30. At the same time the temperature was 15.8°C.

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wind_chill
Low felt air temperature

28 Dec 2006

-3.3 °C

Low felt air temperature (wind chill) observed between 2006-12-28 02:40 and 2006-12-28 07:20 (UTC +02:00). The most extreme conditions within 20 minutes with wind chill index -3.3°C on average have been observed starting from 2006-12-28 04:40. At the same time the temperature was -3.2°C.

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frost
Frost

28 Dec 2006

-1.7 °C

Low air temperature observed between 2006-12-27 20:00 and 2006-12-28 09:10 (UTC +02:00). The most extreme conditions within 8 hours with air temperature -1.7°C on average have been observed starting from 2006-12-28 00:10. At the same time the humidity was 78.2%.

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heavy_rainfall
Heavy rainfall

09 Oct 2006

54.0 mm

Heavy rainfall observed between 2006-10-09 16:50 and 2006-10-10 14:00 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 54.0mm in total have been observed starting from 2006-10-09 18:50. At the same time the wind speed was 1.3m/s.

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storm
Storm

21 Sep 2006

11.2 mm

Intense rainfall observed between 2006-09-21 19:40 and 2006-09-21 19:50 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 11.2mm in total have been observed starting from 2006-09-21 19:40. At the same time the wind speed was 3.2m/s.

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storm
Storm

20 Sep 2006

9.2 mm

Intense rainfall observed between 2006-09-20 12:10 and 2006-09-20 12:40 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 9.2mm in total have been observed starting from 2006-09-20 12:30. At the same time the wind speed was 3.0m/s.

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heat
Heat

20 Aug 2006

34.9 °C

High air temperature observed between 2006-08-18 16:50 and 2006-08-22 21:10 (UTC +02:00). The most extreme conditions within 24 hours with air temperature 34.9°C on average have been observed starting from 2006-08-20 19:20. At the same time the humidity was 16.6%.

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storm
Storm

05 Feb 2006

8.4 mm

Intense rainfall observed between 2006-02-05 22:50 and 2006-02-05 23:50 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 8.4mm in total have been observed starting from 2006-02-05 23:40. At the same time the wind speed was 1.8m/s.

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heavy_rainfall
Heavy rainfall

05 Feb 2006

53.6 mm

Heavy rainfall observed between 2006-02-05 11:50 and 2006-02-06 10:50 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 53.6mm in total have been observed starting from 2006-02-05 15:00. At the same time the wind speed was 3.3m/s.

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frost
Frost

27 Jan 2006

-0.6 °C

Low air temperature observed between 2006-01-27 21:40 and 2006-01-28 08:50 (UTC +02:00). The most extreme conditions within 8 hours with air temperature -0.6°C on average have been observed starting from 2006-01-27 21:50. At the same time the humidity was 87.2%.

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frost
Frost

26 Jan 2006

-5.0 °C

Low air temperature observed between 2006-01-24 04:30 and 2006-01-27 04:00 (UTC +02:00). The most extreme conditions within 8 hours with air temperature -5.0°C on average have been observed starting from 2006-01-26 00:40. At the same time the humidity was 96.8%.

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heavy_rainfall
Heavy rainfall

27 Dec 2005

46.4 mm

Heavy rainfall observed between 2005-12-27 06:10 and 2005-12-28 05:40 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 46.4mm in total have been observed starting from 2005-12-27 06:10. At the same time the wind speed was 3.3m/s.

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heavy_rainfall
Heavy rainfall

22 Nov 2005

82.2 mm

Heavy rainfall observed between 2005-11-22 12:20 and 2005-11-24 19:20 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 82.2mm in total have been observed starting from 2005-11-22 16:00. At the same time the wind speed was 4.0m/s.

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storm
Storm

17 Nov 2005

8.0 mm

Intense rainfall observed between 2005-11-17 07:50 and 2005-11-17 08:00 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 8.0mm in total have been observed starting from 2005-11-17 07:50. At the same time the wind speed was 4.2m/s.

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heavy_rainfall
Heavy rainfall

17 Nov 2005

53.0 mm

Heavy rainfall observed between 2005-11-17 05:10 and 2005-11-17 19:50 (UTC +02:00). The most extreme conditions within 12 hours with rainfall 53.0mm in total have been observed starting from 2005-11-17 07:10. At the same time the wind speed was 2.2m/s.

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storm
Storm

29 Sep 2005

10.0 mm

Intense rainfall observed between 2005-09-29 17:00 and 2005-09-29 17:10 (UTC +02:00). The most extreme conditions within 10 minutes with rainfall 10.0mm in total have been observed starting from 2005-09-29 17:00. At the same time the wind speed was 1.7m/s.

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Definitions of weather phenomena