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Key Facts about: Global Atmosphere

Length of the growing season: 1772-2004


Agriculture output and its environmental impacts

Number of days
Growing season

The growing season is the period of time each year during which plants can grow. The thermal growing season length is defined as beginning when the temperature on five consecutive days exceeds 5˚C and ending when the temperature on five consecutive days is below that threshold.

The increase in growing season length since 1980 is largely due to the earlier onset of spring. The earliest start of the thermal growing season was in 2002 when it began on 13 January. The longest growing season in the 233-year series was 330 days, in 2000. The shortest growing season was 181 days in 1782.

Further Information:
Met Office, Mitchell, T. D., Hulme, M., 2002: Length of the growing season. Weather 57: pp196-198
Sustainable Development Indicators:
Sustainable consumption and production: Agriculture sector
Data Tables:

Download Chart Data: Microsoft Excel

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    Page last modified: 7 September 2005
Page published: 7 September 2005
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