HADCET May 2013 – Tied For 79th Coldest out of 351

HADCET (Centreal England Temperature) May 2013 was tied for 79th coldest out of 351 with an average temperature of 10.4C. The warmest May was 15.1C in 1833.

2013 was tied with 1748,1783,1843,1851,1861,1880 and 1967.

The barplot is the 351 May’s since 1659. The temperature is the anomaly from the 1981 to 2010 average.

The most interesting thing about the following graph is the cluster of red bars from 1994 to 2009 which were all above average.

They were not hotter than previous years. They were just not interspersed with cold May’s. The two cold May’s in 2010 and 2013 are a return to normal with cold and hotter May’s occurring beside each other.

HADCET (since 1659) monthly mean - May

 

 

HADCET – March 2013 is tied for 12th coldest March Since 1659

The HADCET dataset is the longest instrumental record of temperature in the world.

One of the minor problems with HADCET is they calculate anomalies from the 1961-1990 average.

This is HADCET (March Only) with anomalies calculated from the most recent 30 years average: 1981 to 2010.

HADCET (since 1659) monthly mean - MAR

15 Coldest March’s (pretty ancient company)

Year MAR
1674 1
1785 1.2
1748 1.8
1883 1.9
1667 2
1845 2
1786 2.1
1789 2.1
1837 2.3
1747 2.5
1770 2.5
1784 2.7
1892 2.7
2013 2.7
1701 2.8

HADCET June July and August trend for 350 years is a measly .009C per decade

HADCET is the Central England Temperature record maintained by the UK Met. The seasonal mean data is available here.

If you graph JJA (June, July and August) the trend is a measly .009C per decade.

The two warmest years are 1976 and 1826. 2011 JJA was 14.8C, below the mean, and 3C colder than 1976.

We were told we were going to fry as “Global Warming” gets going.