Annual Temperature Trend 1958 onwards:
With a mean annual temperature of 11.0°, 2025 was our second warmest year on record. Since 2012 the 5 year moving average is rising steadily in an alomost linear fashion. Back in 2012 the 5 year average was 9.8° and now the 5 year average is 10.8° !
The table below shows the warming trend broken down month by month. So far this century all months have been warmer than 20th century figures
Compared with the 19th century monthly means, October is now almost 2° C warmer.
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
21st Century(2001-2024) |
5.2 |
5.8 |
7.0 |
9.3
|
12.0 |
14.7 |
16.2 |
15.8
|
13.9
|
10.8
|
7.4 |
5.7 |
20th Century(1961-1990) |
4.5 |
4.8 |
6.2 |
8.1 |
10.5 |
13.5 |
15.4 |
14.9 |
12.8 |
10.2 |
6.4 |
5.2 |
19th Century(1886-1900) |
4.1 |
4.7 |
5.7 |
8.3 |
10.9 |
14.4 |
15.2 |
14.8 |
12.9 |
8.9 |
6.7 |
4.8 |