Weather
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20.1
District summary1 for December 2009 Air temperature (degrees celsius) Difference from average
Difference from average
Percent of average
Highest maximum2
Lowest minimum2
Maximum
Minimum
Mean
Mean 30cm soil temperature (degrees celsius)
11.1 11.2 12.0 12.8 13.1 13.5 11.8 12.5 13.3
-16.0 -17.0 -11.0 -8.7 -9.8 -9.0 -10.7 -10.1 -8.6
-1.8 -1.8 -1.4 -1.0 -1.3 -0.9 -1.9 -1.3 -1.2
-2.8 -2.9 -1.5 -1.0 -1.4 -1.4 -2.8 -1.7 -1.6
-2.3 -2.4 -1.4 -1.0 -1.4 -1.1 -2.3 -1.5 -1.4
-0.6 0.1 0.7 0.7 0.5 0.4 -0.3 0.1 0.0
-1 3 8 8 6 7 -2 5 3
55 89 122 143 95 140 65 90 97
126 82 150 137 151 135 92 120 136
28.4 29.0 65.2 65.0 65.5 66.2 31.0 46.9 62.7
11.6 11.8 13.5 12.7 13.5
-10.7 -17.0 -11.0 -8.7 -11.0
-1.8 -1.8 -1.2 -1.3 -1.2
-2.4 -2.8 -1.4 -1.7 -1.4
-2.1 -2.3 -1.3 -1.5 -1.3
-0.3 -0.3 0.4 -0.1 0.4
-1 0 6 4 6
70 66 110 94 106
137 99 141 130 139
48.3 29.4 63.6 53.0 62.2
Raindays3
Rainfall
Sunshine
Sunshine (hours)
December 2009 District: 0 1 2 3 4 5 6 7 8
Scotland N Scotland E England E & NE East Anglia Midlands England SE Scotland W England NW & N Wales England SW & S Wales
N Ireland Scotland England Wales England & Wales
Anomalies are with respect to the 1961-90 averaging period. However, anomalies with respect to the 1971-2000 averaging period are available from http://www.metoffice.gov.uk/climate/uk The month was mostly changeable, the first 10 days being mild but it then turned colder with snowfalls after mid-month. Overall, it was a very cold month with mean temperatures 1.5 to 2.0 degC below the 1971-2000 normal over England and Wales, 2.0 to 2.5 degC below over Nor thern Ireland and 2.5 to 3.5 degC below over Scotland. It was the coldest December over the UK since 1995. Rainfall ranged from well below average over western Scotland to above average along the east coast, and in south-east England. Sunshine totals were generally well above normal, the main exceptions being central and eastern Scotland. It was the four th-sunniest December in a series from 1929, and similiar to December 2008.
20.2
1 District values for each element are computed using all available climate stations, excluding rooftop sites for minimum air temperature. The values in the table may not be compatible with other time series (eg. Central England Temperature, England and Wales Rainfall). 2 Highest maximum and lowest minimum air temperatures for each district are determined by calculating 95 percentiles. 3 Raindays are the number of days during which the total precipitation is at least 0.2mm. Source: Met Office
UK Annual Weather Summary Max Temp
Min Temp
Mean Temp
Sunshine
Rainfall
Actual (degrees celsius)
Anomaly (degrees celsius)
Actual (degrees celsius)
Anomaly (degrees celsius)
Actual (degrees celsius)
Anomaly (degrees celsius)
Actual (hours/ day)
Anomaly
Actual
Anomaly
(%)
(mm)
(%)
1989 1990 1991 1992 1993
WLRL 13.1 13.1 12.1 12.3 11.8
WLRM 1.2 1.2 0.3 0.4 −0.1
WLRO 5.5 5.8 5.1 5.2 5.0
WLRP 0.7 0.9 0.2 0.4 0.1
WLRR 9.3 9.4 8.6 8.7 8.4
WLRS 1.0 1.1 0.3 0.4 ..
WLRX 1 563.8 1 490.7 1 302.0 1
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