WEATHER ANALYSES FOR 2012
Headline: The wettest
year since records began in
Click here to view statistical summary for the year.
Click here to view monthly statistics.
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Review of 2011 and 2012 in the context of climate change in Northampton.
MONTHLY WEATHER REVIEWS AND CLIMATOLOGICAL SUMMARIES
Headline: Generally mild and changeable, but with a rapid deterioration into cold conditions towards the end.
Headline: A month of marked contrasts influenced by two main air masses – one very cold, the other mild.
Headline: Essentially anticyclonic – very mild, dry with lengthy spells of sunshine.
Headline: Cold, dull and wet. The
wettest April in
MayHeadline: Changeable for the most part, but with a large blocking high introducing settled and very warm weather towards the end of the month.
JuneHeadline: Cool, dull and very wet. The wettest June since 2007 and the coolest since 1987.
For the most part dull, cool and very wet, although turning warm and sunny for a short while during the third week.
Cloudy and unsettled, but with temperatures above average.
Generally dry with most of the month’s rainfall falling in just a few days in the final week. Warm to begin with, but temperatures on average disappointing for September.
Wet and dull with below average temperatures.
Wettest November in
December began cold and sunny, but, as in November, low pressure became dominant during the month and it often rained, especially during the second half.
CLIMATOLOGICAL STATISTICS FOR 2012
Air Temperatures: The Highest Maximum: 28.9 C on 19th August The Lowest Maximum: 0.1 C on 8th February The Highest Minimum: 17.1 C on 18th August The Lowest Minimum: -13.0 C on 11th February The Mean Maximum: 13.7 C The Mean Minimum: 6.1 C The Overall Mean: 9.9 C Difference from the Yearly Mean: -0.6 C Solar Radiation: Maximum (at 0900): 779.0 W/m^2 on 28th June Mean (at 0900): 187.6 W/m^2 Relative Humidity: Highest Relative Humidity (at 0900): 100% on January 13th,19th,30th February 5th,29th March 12th, 15th April 13th June 21st July 31st August 7th October 20th-24th November 1st, 15th & December 3rd Lowest Relative Humidity (at 0900): 56.4 % on 24th July Mean Relative Humidity (at 0900): 85.7 % Dew Point: The Highest Dew Point (0900): 19.5 C on 28th June The Lowest Dew Point (at 0900): -12.1 C on 11th February The Mean Dew Point (at 0900): 7.2 C Rainfall: Total: 882.8 mm Percentage of the Yearly Mean: 134.1 % Duration: 753.0 hrs Highest 24 hour fall (0900 to 0900): 30.5 mm on 24th November Rain Days (>/=0.2mm): 181 Wet Days (>/=1.0mm): 139 Sunshine: Total Duration of Bright Sunshine: 1190.1 hrs Sunniest day: 12.7 hrs on 28th July No. of days without sunshine: 80 Percentage of the Yearly Mean: 85.5 % Cloud cover (mean at 0900): 5.8 oktas Pressure (reduced to sea level): The Highest Pressure (at 0900): 1043.5 mb on 8th February The Lowest Pressure (at 0900): 976.3 mb on 1st November Mean Pressure (at 0900): 1015.2 mb Winds Run of wind (mean over 24 hrs): 108.9 miles Mean daily wind speed: 5.9 mph Run of wind (cumulative): 39842 miles Highest Maximum Gust: 60 mph on 5th January No. of gusts of 50mph or more: 4 Highest wind strength (at 0900): 36 mph on 3rd January Mean wind strength (at 0900): 8.8 mph
Winds from the Following Directions: N 31 NE 22 E 19 SE 36 S 67 SW 63 W 40 NW 60 Calm 17
Concrete Lowest Concrete Minimum: -8.3 C on 4th February Mean Concrete Minimum: 5.6 C Evaporation Piche 674.95 ml Days with: Thunder: 5 Hail <5mm: 6 Hail >/=5mm: 0 Snow or snow & rain: 7 Snow lying: 11 Fog: 23 Air Frost: 35 Duration of Air Frost: 222.3 hrs Gales: 2 Monthly extremes: Wettest month: 128.0 mm in April Driest month: 17.2 mm in February Warmest month: 17.5 C in August Coolest month: 3.5 C in February Sunniest month: 166.5 hrs in May Dullest month: 46.3 hrs in January Windiest month: 8.0 mph in April Calmest month: 4.7 mph in July ~ denotes an average calculated for that month. © Pitsford Hall weather station