January: 1-6°C, 80mm, 56 hrs sun. Average, a bit wet.
February: 0-4°C, 100mm, 39hrs sun. Cold, wet, gloomy.
March: -3 - 3°C, 30mm, 90hrs sun. March 2013 the second. Awful backloaded winter, extremely cold, horrible.
April: 3-11°C, 110mm, 110hrs sun. Cold, wet and raw, dull crappy spring month.
May: 8-17°C, 22mm, 199hrs sun. Mild, sunny, and dry. The only decent month of the year.
June: 9-16°C, 275mm, 65hrs sun. Cloudiest on record, very cold and extremely wet. 2012 the 2nd.
July: 11-18°C, 115mm, 96hrs sun. Very dull, wet and cold.
August: 12-20°C, 99mm, 135hrs sun. "Best" of summer but still cold. Even in London it gets no higher than 27 degrees (all summer).
September: 10-16°C, 164mm, 120hrs sun. A cool and unpleasant month.
October: 4-11°C, 75mm, 84hrs sun. Very chilly October, coldest in decades, lots of snow in the final week.
November: 7-12°C, 203mm, 29hrs sun. Very mild and extremely wet.
December: 2-5°C, 167mm, 10.2hrs sun. Extremely cloudy, wet and cool.
All just made up of course.