Updated: 2026-09-21
July 2006 is the hottest July in the record kept closest to Glasgow. The mean temperature for the month reached 18.2 °C — mean monthly temperature, July 2006 — with an average daily maximum of 22.7 °C across all 31 days of the month. The gap to the second-placed year is 0.6 °C.
The closest weather station to Glasgow is the station at Paisley, in Renfrewshire, sitting at 32 m above sea level and about 11.4 km from the city. It is not Glasgow's own weather station, so what follows is the record of that measurement point — the best long-running reference available for the area — rather than an exact reading for the city itself.
That station's July record runs from 1914 to 2011. In that window, no July came close to matching July 2006's 18.2 °C mean. Four separate Julys share second place at 17.6 °C — 1976, 1983, 1955 and 1934. The 0.6 °C margin that separates 2006 from the chasing pack is what makes it stand out: the hot Julys of the twentieth century cluster tightly together, and 2006 sits above all of them.
The single hottest July day measured at the Paisley station over the whole record fell on 14 July 1926, when the maximum temperature reached 30.0 °C. That daily peak belongs to a summer whose monthly mean, at 16.8 °C, was far below 2006's — a reminder that one scorching afternoon and a consistently warm month are two different things.
Looking at where the warmest Julys fall across the decades, the top ten months in the record are spread out rather than packed into one era. The years listed are 2006, 1976, 1983, 1955, 1934, 1933, 1984, 2003, 1991 and 1926. By decade that gives two Julys to the 1930s (1934 and 1933), two to the 1980s, two to the 2000s, and one each to the 1920s, 1950s, 1970s and 1990s.
Below is the full ranked list of Julys at the Paisley station, ordered from warmest to coolest, with the monthly mean temperature, the average daily maximum, and the number of days with data in each month. Every entry covers a complete 31-day July.
| Rank | Year | Mean temperature (°C) | Average daily maximum (°C) | Days with data |
|---|---|---|---|---|
| 1 | 2006 | 18.2 | 22.7 | 31 |
| 2 | 1976 | 17.6 | 21.9 | 31 |
| 3 | 1983 | 17.6 | 21.9 | 31 |
| 4 | 1955 | 17.6 | 23.0 | 31 |
| 5 | 1934 | 17.6 | 22.2 | 31 |
| 6 | 1933 | 17.3 | 21.4 | 31 |
| 7 | 1984 | 17.2 | 22.2 | 31 |
| 8 | 2003 | 17.1 | 21.1 | 31 |
| 9 | 1991 | 16.8 | 20.6 | 31 |
| 10 | 1926 | 16.8 | 21.5 | 31 |
| 11 | 1982 | 16.8 | 21.2 | 31 |
| 12 | 1989 | 16.7 | 22.1 | 31 |
| 13 | 1995 | 16.6 | 20.7 | 31 |
| 14 | 1977 | 16.5 | 20.9 | 31 |
| 15 | 1921 | 16.5 | 21.1 | 31 |
| 16 | 2009 | 16.4 | 20.2 | 31 |
| 17 | 1997 | 16.3 | 20.3 | 31 |
| 18 | 1949 | 16.3 | 20.4 | 31 |
| 19 | 1925 | 16.2 | 20.5 | 31 |
| 20 | 1975 | 16.2 | 19.8 | 31 |
| 21 | 1945 | 16.2 | 20.0 | 31 |
| 22 | 2005 | 16.1 | 20.0 | 31 |
| 23 | 1999 | 16.1 | 19.9 | 31 |
| 24 | 1927 | 16.1 | 19.8 | 31 |
| 25 | 1944 | 16.0 | 19.4 | 31 |
| 26 | 1958 | 16.0 | 20.4 | 31 |
| 27 | 1994 | 16.0 | 19.9 | 31 |
| 28 | 1923 | 15.9 | 19.5 | 31 |
| 29 | 1941 | 15.9 | 19.6 | 31 |
| 30 | 1959 | 15.9 | 19.5 | 31 |
| 31 | 2000 | 15.9 | 20.5 | 31 |
| 32 | 2008 | 15.8 | 19.4 | 31 |
| 33 | 1957 | 15.8 | 19.5 | 31 |
| 34 | 1973 | 15.8 | 19.9 | 31 |
| 35 | 1952 | 15.7 | 20.1 | 31 |
| 36 | 1917 | 15.7 | 20.4 | 31 |
| 37 | 1971 | 15.7 | 19.8 | 31 |
| 38 | 2010 | 15.7 | 18.7 | 31 |
| 39 | 1990 | 15.7 | 19.8 | 31 |
| 40 | 2001 | 15.6 | 19.3 | 31 |
| 41 | 1987 | 15.6 | 19.3 | 31 |
| 42 | 1972 | 15.5 | 19.6 | 31 |
| 43 | 1947 | 15.5 | 19.0 | 31 |
| 44 | 1969 | 15.5 | 19.3 | 31 |
| 45 | 1935 | 15.5 | 19.7 | 31 |
| 46 | 1937 | 15.5 | 19.7 | 31 |
| 47 | 1948 | 15.5 | 19.6 | 31 |
| 48 | 1932 | 15.4 | 18.9 | 31 |
| 49 | 1951 | 15.4 | 19.0 | 31 |
| 50 | 1936 | 15.3 | 19.2 | 31 |
| 51 | 2004 | 15.3 | 19.2 | 31 |
| 52 | 1929 | 15.3 | 19.4 | 31 |
| 53 | 1950 | 15.3 | 18.7 | 31 |
| 54 | 1943 | 15.2 | 19.4 | 31 |
| 55 | 1996 | 15.2 | 19.1 | 31 |
| 56 | 1930 | 15.2 | 18.5 | 31 |
| 57 | 1916 | 15.2 | 19.1 | 31 |
| 58 | 1960 | 15.1 | 18.7 | 31 |
| 59 | 1914 | 15.1 | 19.2 | 31 |
| 60 | 2007 | 15.1 | 18.6 | 31 |
| 61 | 1946 | 15.1 | 18.4 | 31 |
| 62 | 1931 | 15.0 | 18.2 | 31 |
| 63 | 1942 | 15.0 | 18.8 | 31 |
| 64 | 1953 | 15.0 | 18.5 | 31 |
| 65 | 1956 | 15.0 | 18.3 | 31 |
| 66 | 1985 | 14.9 | 18.0 | 31 |
| 67 | 1939 | 14.9 | 18.4 | 31 |
| 68 | 1919 | 14.9 | 19.9 | 31 |
| 69 | 1918 | 14.8 | 19.3 | 31 |
| 70 | 2002 | 14.8 | 18.2 | 31 |
| 71 | 1992 | 14.8 | 18.4 | 31 |
| 72 | 1986 | 14.8 | 18.2 | 31 |
| 73 | 1938 | 14.8 | 18.6 | 31 |
| 74 | 1940 | 14.8 | 18.6 | 31 |
| 75 | 1981 | 14.8 | 18.0 | 31 |
| 76 | 1998 | 14.7 | 18.0 | 31 |
| 77 | 1966 | 14.7 | 18.6 | 31 |
| 78 | 1964 | 14.7 | 17.9 | 31 |
| 79 | 1979 | 14.6 | 17.8 | 31 |
| 80 | 1915 | 14.6 | 18.9 | 31 |
The Paisley station sits at 32 m above sea level, roughly 11.4 km from Glasgow. Glasgow itself has its own local quirks — the shape of the Clyde valley, the built-up urban surface, and the surrounding hills all nudge temperatures in ways a single measurement point cannot capture. On a still, clear July night the city centre can hold more heat than an outlying site; on a day with a westerly flow off the Firth of Clyde, the reverse can happen.
So treat these figures as the best long-run reference for the area, not as Glasgow's own thermometer. What they do show clearly is that July 2006 stands alone at the top of a record stretching from 1914 to 2011: a mean of 18.2 °C, an average daily maximum of 22.7 °C, and a margin of 0.6 °C over the next warmest years.
Source: Met Office MIDAS archive, station at Paisley (Renfrewshire), July record 1914–2011. Data supplied under the Open Government Licence.
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