Discussions about the 60's tempertures have been posted recently and after the 'hot=
' spell in mid July I compared my 35 years of July records (1971 - 2005) and also looked a=
t the Bracknell Met Office records (1962 to 1970) 1 KM distant to make 44 years of conti=
nuos records for Bracknell.

I have used the term ‘hot=E2=80=99 which applies when the air temperature r=
eaches or exceeds 25c. The criterion set is that there is a ‘week=E2=80=99 o=
f 7 consecutive days, where the maximum must have reached or exceed 25c within July al=
lowing for only one of those days in either June or August. This has only occurred 7 tim=
es in the 44 July=E2=80=99s as indicated in table 1 below. There were no occurrences i=
n the 1960=E2=80=99s 2 in the 1970=E2=80=99s, 2 in the 1980=E2=80=99s 1 in the 1990=E2=
=80=99s and already in the first 6 years 2 in the 2000=E2=80=99s.

Table 1
Day 1975 1976 1983 1989 1994 2001 2005
1 25.0 31.0 30.6 28.8 25.5 25.7 29.4
2 26.4 33.5 31.3 31.8 26.2 27.6 28.3
3 28.4 34.0 31.6 33.6 28.5 29.8 28.3
4 29.0 32.5 30.0 32.0 25.8 31.0 31.8
5 30.0 31.7 31.5 30.4 27.0 32.2 30.2
6 26.9 34.0 32.5 29.7 31.0 29.7 27.9
7 25.5 31.6 28.1 26.9 29.2 26.8 25.4

Ave 27.3 32.6 30.8 30.5 27.6 29.0 28.7
Rank 7th 1st 2nd 3rd 6th 4th 5th

Dates
26-1 1-7 11-17 20-26 19-25 25-31 10-17

There are many single days or a run of several days where the maximum reached or exceed=
ed 25c. However, between 1962 and 1970, 1962 had no days reaching 25c, 1963 had 4, 1964=
had 4, 1965 had none, 1966 had 1, 1967 had 6, 1968 had 2, 1969 had 9 ( 6 consecutive)and 19=
70 had 3. =


Regards
Paul Fishwick


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