Weather Musing...How cold have the first 10-days of December
Posted: Wed Dec 10, 2008 9:38 pm
How cold have the first 10-days of December been?
It seems to have been much colder this year than for a good many years and people have made comments to me that the seasons seem to be back in order this year.
So, I got my best weather anorak on and decided to compare the first 10-days of December 2008 to each of the first 10-days of December since 1999 (yes, I am that sad!). I picked a random station (Sennybridge in mid-south Wales) for which daily data was available over the past 10-years. Now, you must remember this datat is onl;y for one station, and things may be different country wide, but it is an interesting exercise to perform.
And here is the result. Our perceptions are correct. The first 10-days of December 2008 have been significantly colder than any of the first 10-days of December I the past 10-years. Mean temperatures have been just 1.2C so far this year. The nearest coldest in terms of mean temperature (the average of maximum and minimum) was 2003 with 3.4C, but this is still a full 2.2C above where we are now.
So, if you think it has been cold this year, then you are absolutely right. Not only has it been cold, it’s been VERY cold when compared to the last 10-years, and certainly compared to the temperatures we have got used to for the start of December.
The full details are below:
Sennybridge (Wales) Mean Temperature Data for 1st to 10th December for the years 1999 to 2008
YEAR MEAN MAX MEAN MIN MEAN TEMP
2008 5.0 -2.5 1.2
2007 9.9 4.2 6.8
2006 7.9 3.4 5.2
2005 6.6 2.6 4.5
2004 7.7 2.6 5.1
2003 5.7 0.8 3.4
2002 5.7 2.8 3.9
2001 6.9 1.4 4.2
2000 9.3 3.7 6.7
1999 7.4 2.7 5.2
Hope that is useful (and interesting),
Simon
It seems to have been much colder this year than for a good many years and people have made comments to me that the seasons seem to be back in order this year.
So, I got my best weather anorak on and decided to compare the first 10-days of December 2008 to each of the first 10-days of December since 1999 (yes, I am that sad!). I picked a random station (Sennybridge in mid-south Wales) for which daily data was available over the past 10-years. Now, you must remember this datat is onl;y for one station, and things may be different country wide, but it is an interesting exercise to perform.
And here is the result. Our perceptions are correct. The first 10-days of December 2008 have been significantly colder than any of the first 10-days of December I the past 10-years. Mean temperatures have been just 1.2C so far this year. The nearest coldest in terms of mean temperature (the average of maximum and minimum) was 2003 with 3.4C, but this is still a full 2.2C above where we are now.
So, if you think it has been cold this year, then you are absolutely right. Not only has it been cold, it’s been VERY cold when compared to the last 10-years, and certainly compared to the temperatures we have got used to for the start of December.
The full details are below:
Sennybridge (Wales) Mean Temperature Data for 1st to 10th December for the years 1999 to 2008
YEAR MEAN MAX MEAN MIN MEAN TEMP
2008 5.0 -2.5 1.2
2007 9.9 4.2 6.8
2006 7.9 3.4 5.2
2005 6.6 2.6 4.5
2004 7.7 2.6 5.1
2003 5.7 0.8 3.4
2002 5.7 2.8 3.9
2001 6.9 1.4 4.2
2000 9.3 3.7 6.7
1999 7.4 2.7 5.2
Hope that is useful (and interesting),
Simon