August 2018 – The halfway point

A brief spell of heavy rain early this morning soon cleared (with a sharp clearance) to sunny intervals. Despite being told how much cooler and fresher I will be feeling because of it, the day was still warm and extremely pleasant with moderate humidity.

A maximum of 22.9C and nearly 7 hours of sunshine.

This August (1st – 16th) so far: warmer and wetter than normal; sunshine around the average.

Mean max = 23.8C
Mean min = 12.7C
Mean = 18.3C
Rain = 47 mm
Sunshine = 120 hours.

Cool Saturday, Humid Sunday

The summer has gone! Cool, drizzly and pretty miserable on Saturday with a maximum temperature only 17.5°C making it the coldest day since the 16th May.

Very wet overnight with 26 mm of rain then drier through Sunday morning before the sun made a welcome appearance and warmed it up a little. A humid maximum of 21°C.

Forecast is showing that summer will return but nothing like the pristine blue skies and +30°C temperatures we’ve become accustomed to over the last couple of months.

Real warmth & humidity ebbing away…..

Another lovely day with oodles of sunshine and warmth. A maximum of 25.5C and feeling a little humid with a DP of around 18C.

In the last couple of hours all that warmth and humidity has ebbed away and now replaced by something that feels decidedly cool. Stayed mostly sunny throughout the transition.

Temperature (now at 19:30) 18.3C, sunny with a DP of just 11.3C. I guess dinner later on will not be outside. That’ll be a novelty, eating indoors, who’d have thought.

I see the models are backtracking on a wet weekend for us here in the deep south and seem to be keen on bringing back something more usual for this summer; warmth and moderate humidity.

Really oppressive, sticky days have been few and far between this year with DPs mostly between 15C & 18C. That’s the same for the lack of any very high UV levels. Not even reached 9.0 this year, most unusual but not surprising given the lack of low pressure.

Sunny Sunday

A minimum of 12.6°C led into a day of unbroken sunshine and a deep blue sky. It was busy down on the beaches in Sidmouth, no wonder the sea felt warm, it was heated by all those bodies swimming in it.

A maximum of 26.0°C this afternoon. Humidity has been dropping away since the dew point peaked at 19°C around midday.

Summer nights

Sat outside last night until the early hours under the starriest of skies watching the first of the Perseids as they build to the peak expected on 12th & 13th. The warm summer night was alive to the sound of crickets chirruping away, it was all as beautiful as the stars above.

Summary for July 2018

Warm and sunny with average rainfall. Warmest July since 2006, sunniest since 2013 and the driest since 2016. Joint highest ever recorded temperature (2005) on the 8th.

Mean Max: 25.5ºC
Mean Min: 13.2ºC
Mean: 19.4ºC

High Max: 31.1ºC 8th
Low Max: 19.5ºC 29th
High Min: 16.9ºC 23rd
Low Min: 9.8ºC 19th
Grass Min: 8.3ºC 15th

Days >25°C 20 Days
Days >20°C 30 Days
Nights >15°C 7 Days
Nights >10°C 30 Days

Rain Total (gauge): 46.3 mm
Rain Days >0.2 mm: 6 Days
Rain Days >1.0 mm: 5 Days
Max 24 hrs: 19.1 mm 1st
Days without any rain: 25

Thunder Heard: 2 Days
Hail <5 mm: 0 Days
Hail >5 mm: 0 Days
Fog @ 9am: 0 Days

Total Monthly Sunshine: 297.1 Hours
Most Sunshine in a Day: 15.1 Hours 2nd
Average Daily Sunshine: 9.6 Hours
Sunless Days: 0 Days
Cloudless Days: 6 Days
Total Possible Sunshine: 495.0 Hours
Percentage of Total Sun: 60%
Average Sunny Interval: 23.9 mins

Ave 10 Min Wind >39 mph: 0.00 Days
Calm: 6.31 Days 20%
Mean Wind: 3.0 mph
Max Gust: 44 mph 29th

Mean Pressure: 1016.1 hPa
Max Pressure: 1026.1 hPa 9th
Min Pressure: 999.4 hPa 29th

Max Dewpoint: 20.3ºC 23rd
Min Dewpoint: 7.6ºC 3rd
Mean Dewpoint: 14.3ºC

Max Humidity: 98% 24th
Min Humidity: 35% 2nd
Mean Humidity: 75%

More Needed July Rain

A further 12.9 mm of rain today brings the monthly total to nearly the long term average with 42.9 mm. Even though rainfall is now just about normal for July, after a bone-dry June and with the higher temperatures and sunshine, the soil moisture deficit has been high. Given the forecast of a return to hot and sunny weather, today’s rain will probably have all but disappeared and made little difference by the middle of the week. Still, it filled the water butts!

The Warmth of July 2018

Yet another warm day with a maximum of 27.2°C. Still a week to go before the end of the month but the mean temperature is currently at 19.8°C. This is just 0.3°C below my all-time warmest ever month of July 2006. It is going to be close.

The warmth and humidity this afternoon brought out a wonderful sight of countless flying ants swarming up into the beautiful blue summer skies from their nests in the ground. What a stunning spectacle and something I haven’t seen on such a scale since I was a child.

19th July – Summer’s Back

After a couple of much cooler (21.6C & 22.2C) and fairly cloudy days, things are back to normal today with unbroken sunshine all afternoon and a maximum of 27.2C. That’s better, I was getting worried.

On this day in 2006, it was the hottest day of the warmest month I have recorded. A maximum of 30.8C on the 19th July 2006 with the monthly mean ending up at 20.1C. That hottest day record stood until last year when I recorded 31.1C on the 20th June.

Unless things seriously warm up again, this month is not likely to beat July 2006 for warmth:

1st – 19th July 2018:
Mean minimum = 13.2C
Mean maximum = 25.8C
Mean = 19.5C
Rain = 21.4 mm
Sun = 192 hours.