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Far too hot for me now at 28.4C but its a nice day, completely clear and sunny.

Already up to 25.1C at 11am here after a min of 15.3C. I wonder if 30C is possible? It would be the first time here in 16 years if it were to happen.

Up to 16.6C here now to the 17th, some 3.1C above the 1981-2010 average for this point in the month. The odds on beating the previous warmest in 2003 (16.1C) are shortening by the day. I don't have records far enough back, but an estimate from the metoffice climate anomalies site suggests 1976 would have been around 17.0C, so a realistic target with the heat which is forecast.

We reached 27.8C today, making it the warmest June day since 2011. The min was 16.1C aswell, which was also the warmest for five years.

A warm day with variable cloud and sunny spells. Max Temp: 22.4C Min Temp: 14.0C Currently 19.8C with a dewpoint of 12.0C.

We're now on 16.2C (+2.8C) to the 15th. This is turning into an exceptional month, especially when you consider the warmest June (2003) was 16.1C. This comes after both the warmest March and May on record (since 1980).

A very warm start to the month here, currently on 16.0C (+2.3C) to the 13th.

I can only speak for my location, but the first half of last June was absolutely dire with relentless east or north-easterly winds. The mean temp to the 13th was only 13.5C compared to 16.0C so far this year. That 16.0C figure is only 0.1C below the record warmest June back in 2003 (for the entire month mind you!). Sunshine this year is currently at 84 hours, whereas 2016 recorded only 135 hours all month. The mean max to the 13th was 17.0C in 2016 vs 19.9C now and mean min 9.9C in 2016 vs 12.0C now are also significantly better this year. The only factor this year comes out worse is in rainfall, but even then, the same number of days had seen >1mm - 4 days for both years. Honestly there's no comparison, this year has been much better!

Ironically it could be the warmest year on record CET-wise, but still not give a hot summer. 2014 had an annual CET of 10.93C but the summer was equal to the 1981-2010 mean. Still, you know as soon as a 'blowtorch' summer is mentioned its probably going to be poor!

30mm of rain already here this month. With rain currently falling and more forecast on Thursday it's looking like we may surpass the 1981-2010 average for the entire month by the end of the week! That'll be more than March and April put together. Not exactly a good start to summer!

The ice is starting to look pretty poor already, despite only being the first week in June. There are polynyas opening up everywhere: https://seaice.uni-bremen.de/data/amsr2/today/Arctic_AMSR2_nic.png These early holes accompanied with the poor synoptics could have a massive effect this season. The ice is already thinner after the mild winter, I wonder how low it could go?

10.27C according to here: http://hadobs.metoffice.com/hadcet/ssn_HadCET_mean_sort.txt but yes, the warmest spring on record meaning 5 of the 9 warmest springs have come since 1999.

Warmer than average: 15.3C

We're on 13.2C at the moment, 2.0C above the 1981-2010 average. The previous warmest was 1999 (12.7C), so it'll be comfortably the warmest on record, just like March was.

We're on course for the warmest spring on record here with a mean of 10.4C, beating the previous highest of 10.3C set in 2011. March was the warmest I've ever recorded and May is set to follow in its footsteps, comfortably beating 1992 and 1999. Worth noting that out of the ten springs with temps 1.0C above average or more, only one (2003) has seen a summer follow with a mean of 16.2C or more. All but two were wetter than average aswell.

A mixture of mostly cloudy and sunny spells. There was a brief spell of light rain around midday giving 0.2mm, but thunderstorms missed us to the east early in the morning and to the west in the afternoon. The wind has since increased and been accompanied by a large temperature drop. The maximum temperature of 26.8C was the highest at this site since my records began in 1980, beating 23rd May 2010 by 0.1C. It was extremely humid aswell with a high dewpoint of 19.2C. Max Temp: 26.8C Min Temp: 13.2C Mean Wind: 19mph S Max Gust: 29mph Sunshine: 9.2hrs (at 18:00 BST) Rainfall: 0.2mm Currently 19.0C and mostly cloudy with a strong southerly breeze.

We've just hit a max of 26.8C, which is a new May record (since 1980), beating 2010's value by 0.1C.

Four of the warmest six in the last 11 years says it all. None of the summers that followed were warmer than the current 1981-2010 average either. Only 2014 was equal to it (15.9C).

25.1C today, the third warmest May maximum here since 1980. This comes after the second warmest maximum on record in April (23.1C) and 4th warmest maximum on record in March (19.0C). It seems like if we get a flow from the right direction, we'll get close to or break records quite easily at the moment!

Exceptionally warm today for late May. The max temp of 25.1C was the third warmest since 1980 and 9.3C above the 1981-2010 average for this point in the month. The day was mostly clear with occasional partly cloudy spells and a light north-westerly breeze which has now turned to the south-east. This has been accompanied by a large temperature drop to 16.4C. Max Temp: 25.1C Min Temp: 13.6C Mean Wind: 10 mph WNW Max Gust: 15mph Sunshine: 14.1hrs Rainfall: None

It hasn't been a long time at all. 2013 and 2014 both did.

A very dry spring here so far. Since 27th February we've had 54.8mm, which is 52% of normal. The previous 18 days to this (10th-27th February) actually recorded more with 56.4mm. Always a concern with such a dry period that there may be a correction just at the wrong time (like 2007). Hopefully not the case!

PIOMAS has updated and its still as grim as it was last month with only a very slight reduction in the anomaly compared to every other year on record: http://psc.apl.uw.edu/wordpress/wp-content/uploads/schweiger/ice_volume/BPIOMASIceVolumeAnomalyCurrentV2.1_CY.png If this gap doesn't close by Autumn then its hard to see how we won't beat 2012 for extent and area aswell, as the reduced thickness is very even over the basin.

We've just had one of the warmest Marches on record and both March and April were warmer, sunnier and drier than average. We also had areas reaching the low-mid 20s in the first week of April. I'm not sure what you expect in the UK in spring, which is after all the second coldest season on average. Despite that, its going to be anything but 'cold and cloudy' regardless of what May brings.

Close to average: 11.5C