Climate Data for Latitude 47.25 Longitude -2.25Köppen climate classification: Cfb (Climate: warm temperate; Precipitation: fully humid; Temperature: warm summer) Baie de Vilaine
Baie de Vilaine
Estuaire de la Loire - Baie de Bourgneuf
Grande Brière, marais de Donges et du Brivet
Marais de Brière
Marais du Mès, baie et dunes de Pont-Mahé, étang du Pont de Fer, île Dumet
Marais salants de Guérande, traicts du Croisic, dunes de Pen Bron
Traicts et marais salants de la Presqu'île Guérandaise
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Averages (Metric) English| Type | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Period |
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| Min Temp | C° | 3.3 | 3.3 | 4.8 | 6.4 | 9.3 | 11.8 | 13.7 | 13.7 | 12.0 | 9.2 | 5.7 | 4.0 | 108 years | | Mean Temp | C° | 6.1 | 6.5 | 8.5 | 10.5 | 13.6 | 16.4 | 18.4 | 18.3 | 16.3 | 12.9 | 8.9 | 6.7 | 109 years | | Max Temp | C° | 8.9 | 9.8 | 12.3 | 14.7 | 18.0 | 21.1 | 23.1 | 23.0 | 20.8 | 16.7 | 12.1 | 9.4 | 109 years | | Frost | Days | 22.8 | 15.6 | 7.2 | 5.7 | 1.5 | 5.0 | 1.5 | 2.0 | 7.0 | 4.6 | 4.4 | 6.2 | 2 years | | Wet | Days | 18.9 | 15.2 | 16.4 | 14.1 | 16.3 | 10.3 | 10.7 | 10.7 | 12.1 | 14.5 | 18.4 | 19.2 | 109 years | | Precipitation | mm | 85.4 | 71.1 | 66.5 | 58.2 | 63.6 | 44.9 | 43.8 | 51.1 | 62.9 | 87.2 | 97.2 | 99.3 | 109 years | | Potential Evapotranspiration | mm | 17.5 | 25.5 | 47.9 | 69.1 | 91.3 | 108.2 | 118.7 | 101.4 | 71.0 | 42.2 | 21.3 | 15.6 | 108 years |
Averages (English) Metric| Type | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Period |
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| Min Temp | F° | 37.9 | 37.9 | 40.6 | 43.5 | 48.7 | 53.2 | 56.7 | 56.7 | 53.5 | 48.5 | 42.2 | 39.1 | 108 years | | Mean Temp | F° | 43.0 | 43.7 | 47.3 | 51.0 | 56.5 | 61.6 | 65.1 | 65.0 | 61.4 | 55.3 | 48.0 | 44.0 | 109 years | | Max Temp | F° | 48.1 | 49.6 | 54.1 | 58.5 | 64.4 | 70.0 | 73.6 | 73.4 | 69.4 | 62.1 | 53.8 | 49.0 | 109 years | | Frost | Days | 22.8 | 15.6 | 7.2 | 5.7 | 1.5 | 5.0 | 1.5 | 2.0 | 7.0 | 4.6 | 4.4 | 6.2 | 2 years | | Wet | Days | 18.9 | 15.2 | 16.4 | 14.1 | 16.3 | 10.3 | 10.7 | 10.7 | 12.1 | 14.5 | 18.4 | 19.2 | 109 years | | Precipitation | in | 3.4 | 2.8 | 2.6 | 2.3 | 2.5 | 1.8 | 1.7 | 2.0 | 2.5 | 3.4 | 3.8 | 3.9 | 109 years | | Potential Evapotranspiration | in | 0.7 | 1.0 | 1.9 | 2.7 | 3.6 | 4.3 | 4.7 | 4.0 | 2.8 | 1.7 | 0.8 | 0.6 | 108 years |
Climate data provided by CRU TS 3.1 - University of East Anglia Climate Research Unit (CRU). [Phil Jones, Ian Harris]. CRU Time Series (TS) high resolution gridded datasets, [Internet]. NCAS British Atmospheric Data Centre, 2008, Accessed: 28-July-2011 Charting software provided by pChart - a PHP class to build charts. The calculation method for the potential evapotranspiration is the FAO grass reference equation (Ekstrom et al., 2007, which is based on Allen et al., 1994).
It is a variant of the Penman Monteith method using TMP, TMN, TMX, VAP, CLD.
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