Last frost dates near Guildford - this can’t be right can it?

Most of the so called snow events in June are, I think soft hail, which is not unusual but formed in a different way to actual snow flakes.

According to that map today is my last frost day, but I can remember a few years ago having minus 6 in mid April, it caused chaos with the apples and grapes.

Best to take these kind of things with a pinch of salt, hope for the best and prepare for the worst.

 

I don't take any notice of the weather forecast, What they say we're going to have has either been and gone or we get something totally different.

 

Average last frost date is just what it says, an average, so you can expect the last frost to be later in about as many years as it's earlier.
For my location the plantmap site says last frost date 1-10 May. Some years it's in that range or earlier, but quite often it's not. In practice I don't put anything tender out until the 3rd week in May at the earliest and only if the forecast for the next two weeks looks mild, and even then I have some horticultural fleece, old net curtains etc handy to throw on if it turns colder than I was expecting.

 

@Emerion It was 3 days, but I don’t think that they changed that. I often use the Tagesspiegel temperature database. I was wondering that no one noticed for days that the temperature in June was 15 degrees C colder than usually. I sent to one of the team an email and made them aware of the script issue. You should have seen the scale. From 1881 up to 2022 June average temperature was 23 C and 2023 was 7 C

 

You can check it here, @Emerion , Past Weather in Guildford, England, United Kingdom — Yesterday or Further Back.
But take it with a pinch of salt. Farnborough Airport is 20 min far from Guildford.
RAF Airports somehow are always warmer than the surrounding areas.
The day when the pubs let us in again 17 May 2021, we had 9 C with a mix of sun, rain and hail. Timeanddate says it was sunny and 16C on that day because they used a RAF Airport which is 30 min by car in the north.

 

But they do have some high volume paraffin heaters to make it so

 

Often caused by the large amount of tarmac they have.

 

It wouldn't have anything to do with airports having most of their instruments on the top of the control tower, would it?

 

I trust @JWK and his experience :-)
@pete, those temperatures are always measured in a height of 2 meters to have an equal result.

 

Yeah I know that there is an offical height, just wondered if airports stick to that.

 

My experience of frosty mornings, and only using the car thermometer, but on my run the temperature would vary wildly, nothing to see 3 or 4c differences in about 10 miles.

 

Our airport from timesanddate is between Cheltenham and Oxford, and they have a completely different weather than we have. I can't use timesanddate for that reason.
If we come from Glouc., Warw., Worc. and pass Cirencester, it's often sunny. As soon as we leave Thames valley and go up the Marlborough Downs, it's cloudy and raining.
During winter months, the cold comes from the north and stops just where the Downs start.
Our weather comes from the South West or from Berks. That can be snow in Cirencester, but sunshine and 10 miles down the road, 3 degrees more where we are.