Daily Average temperature UK 2014 to 2016

Data request description: 
Hi there, I am doing a masters dissertation and require a data set that shows the average daily temperature for the UK from 1 March 2014 to 31 July 2016. For example with the following columns: Date, Average Temperature. E.g. 01032014, 12. The data doesn't need to broken down any further than that. The basic date and average temperature as a number will do.
Suggested use: 
Personal Use
This would help me complete my dissertation as I am trying to show the correlation between temperature and revenue.
Benefits overview: 
The benefits of the data would mean I could show there is a correlation between temperature and revenue. Basically that when its warmer, revenue increases.