Dit zijn deceniumgemiddelden voor Engeland, ik weet wel niet voor welke stad. De jaren 90 zijn toch wel een buitenbeentje maar ook de jaren 20. Ook de wintermaanden van 1730-40 blijken koud te zijn.
February Decadal CET averages
Here's a list of the average February CET for each decade.
1990s: 5.03
1980s: 3.39
1970s: 3.52
1960s: 3.63
1950s: 3.47
1940s: 3.74
1930s: 4.21
1920s: 4.62
1910s: 3.75
1900s: 3.62
1890s: 3.89
1880s: 4.21
1870s: 4.35
1860s: 4.72
1850s: 3.61
1840s: 3.52
1830s: 4.00
1820s: 3.99
1810s: 4.26
1800s: 3.76
1790s: 4.45
1780s: 3.20
1770s: 3.99
1760s: 3.73
1750s: 3.71
1740s: 2.96
1730s: 4.84
1720s: 3.71
1710s: 3.85
1700s: 3.60
1690s: 2.49
1680s: 2.80
1670s: 2.35
1660s: 4.00
January Decadal CET averages
Here's a list of the average January CET for each decade
1990s: 4.70
1980s: 3.68
1970s: 4.10
1960s: 3.39
1950s: 3.37
1940s: 2.69
1930s: 4.47
1920s: 4.75
1910s: 3.90
1900s: 3.94
1890s: 3.30
1880s: 2.98
1870s: 3.85
1860s: 3.50
1850s: 3.69
1840s: 3.05
1830s: 2.34
1820s: 2.35
1810s: 2.13
1800s: 3.03
1790s: 2.85
1780s: 2.43
1770s: 2.02
1760s: 2.74
1750s: 3.21
1740s: 2.32
1730s: 4.52
1720s: 3.40
1710s: 2.85
1700s: 2.95
1690s: 1.89
1680s: 2.50
1670s: 3.25
1660s: 2.60
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