As a Farmer i can say that the summer overall was poor but despite the very wet June and July August was actually quite decent with lots of sunshine but the temperatures were very cool.That is why my memories of 2007 were not as bad as the horrors of 2012 and 2008 and even 2023 when we had to do much of our haymaking in September what should have been done in July.However i do remember a conversation with my brother at the end of summer 2007 despite getting the hay done in August that year that it didnt feel like we had had a summer mainly due to the weather in August being constant days of 22 deg at best ,little did i know that it would be another 6 years before we would see another good summer.
I never thought we would see 40 deg in this country but i have tried to eat my hat.However lets not forget this could have just been a perfect set up the likes our children may never see however unlikely and also not forgetting many records set in August 1990 were not broken until 2015 and in 2022,that is 30 years!
Location has a big part to play when it comes to Airfrosts but the majority of stations countrywide probably register only one airfrost in May every odd year at best but locations such as Shawbury or Breamar register May frosts most years ,Breamar having 2-3 most of the time.However if you add very cold springs to the equation such as 1996 and 1979 that figure jumps to 11 airfrosts for 1979 at Braemar and 9 for Shawbury in 1996.
There are actually only 10 days of the year in July and August which have never recorded a night time frost but to answer your question your area has recorded 6 night frosts in May in the last 10 years with each of those years recording only one frost.[Sutton bonnington data,that is the nearest i could find]