October began where September finished with more rain

Tuesday saw the last of the warm air from the southerly breeze with a maximum of 18.3C, which was 3.6C above the October average. However, mid-afternoon the wind veered from the south into the north west then for a while into the north east as the departing low-pressure system moved into the North Sea.

The cooler air from the north to north east direction, and a clear sky meant a cool night with the thermometer falling to 5.1C at 07.20, Wednesday morning.

Rainfall for the past twenty-four hours amounted to 8.4mm. Although the rain at times was very heavy it was modest compared to other areas of the country that had 50cm in an hour or almost 2 metres of floodwater.

Wednesday saw the sun shine brightly from a clear sky after dawn with a temporary rise in pressure before ex hurricane Lorenzo makes itself felt on Thursday.

September 2019 Review

September has been a month of extremes. The first 20 days saw little rain, just 7.3mm, with ten totally dry days. Thereafter every day was wet with considerable rainfall.

The heaviest rainfall occurred on the 23rd with a total of 29.6mm, the days on either side each producing thunder on two occasions.

The rainfall for the month amounted to 111.4mm. This was 181% of the 35-year average or plus 50mm also the wettest September since 2006 when a record 131.9mm fell. The contrasting year was in 2009 when as little 11.1mm was recorded. The other significant daily totals were 18.6mm, 23.0mm and 10.0m on the 24th, 28th and 30th respectively.

Due to the high pressure that settled over and around the country for the majority of the month, it was a warm month with the mean temperature 0.4C above the 35-year average. There were seven days when the peak temperature exceeded 20C when the average was 18.6C. The hottest day on the 21st saw a maximum of 24.9C.

No air frost occurred although the thermometer dropped to a minimum of 0.4C on the morning of the 8th that produced a brief ground frost.

The diurnal temperature, which is the variation between day and night, has seen significant changes for some months since my records began in 1984. September has seen the maximum variation increase by about 1C. However, the variations for the months November to February have seen the maximum increase by 2C to 3C.

During the month 168 hours of sunshine were recorded with many days in the middle of the month seeing almost wall-to-wall sunshine. On the 13th 10.25 hours of sunshine were recorded.

Another wet and cool day to end the month plus September review

With another 10.3mm of rainfall and a maximum almost 3C below average, Monday was a sad autumn day to finish the month. There just a few minutes of brightness during what was a cloudy but less breezy day.

Tuesday saw a predominantly cloudy start with very brief glimpses of sunshine that by 08.00 had lifted the minimum of 8.9C, just below average, to 10.0C.

September 2019 Review

September has been a month of extremes. The first 20 days saw little rain, just 7.3mm, with ten totally dry days. Thereafter every day was wet with considerable rainfall.

The heaviest rainfall occurred on the 23rd with a total of 29.6mm, the days on either side each producing thunder on two occasions.

The rainfall for the month amounted to 111.4mm. This was 181% of the 35-year average or plus 50mm also the wettest September since 2006 when a record 131.9mm fell. The contrasting year was in 2009 when as little 11.1mm was recorded. The other significant daily totals were 18.6mm, 23.0mm and 10.0m on the 24th, 28th and 30th respectively.

Due to the high pressure that settled over and around the country for the majority of the month, it was a warm month with the mean temperature 0.4C above the 35-year average. There were seven days when the peak temperature exceeded 20C when the average was 18.6C. The hottest day on the 21st saw a maximum of 24.9C.

No air frost occurred although the thermometer dropped to a minimum of 0.4C on the morning of the 8th that produced a brief ground frost.

The diurnal temperature, which is the variation between day and night, has seen significant changes for some months since my records began in 1984. September has seen the maximum variation increase by about 1C. However, the variations for the months November to February have seen the maximum increase by 2C to 3C.

During the month 168 hours of sunshine were recorded with many days in the middle of the month seeing almost wall-to-wall sunshine. On the 13th 10.25 hours of sunshine were recorded.

Strongest wind gust in six weeks

Sunday was a predominantly cloudy day with occasional showers that amounted to another 1.6mm.

The September rainfall total now stands at 101.1mm being 40mm above the 35-year average but far from the wettest I have recorded. There have been six wetter Septembers since 1984 when this station started with the wettest bringing 131.9mm in 2006.

Temperatures by day and night were depressed due to the cloudy skies. The peak daytime temperature was 17.7C, being 0.9C below average and overnight the thermometer dropped to 8.9C (-0.3C).

The notable feature on Sunday was the wind which became very gusty as the low pressure eased away to the east that caused the wind to veer from the south in the early morning to west and late afternoon into the north west. The strongest gust was 31mph at 17.30. This was the strongest gust since 10th August when 38mph was recorded.

Monday arrived initially with a little brightness but thick cloud soon obscured the sun however, the wind has dropped out with barely a movement of the air.

Wettest September in 11 years

Saturday saw a continuation of the disturbed weather with frequent heavy and blustery showers.

Rainfall on Saturday amounted to 23.0mm, which brought the September total to 89.5mm being 146% of the 35-year average and the wettest September since 2008.

The temperature by day was below average with a maximum of 17.2C (-1.4C), not surprising with the almost continuous cloud cover. However, the cloud cover overnight meant another mild night with a minimum 13.0C which was almost 4C above average and making Sunday morning the warmest this month with a temperature of 15.3C at 08.00

More rain, more wind, less sun

There was reduced sunshine on Friday, the wind was stronger and it was cooler. The wind gusted to 29mph, the strongest gust this month. The thermometer struggled to reach 16.9C, being 1.7C blew average due to frequent showers with more since 04.15 today.

The rainfall for the past twenty-four hours amounted to 4.9mm bringing the September total to 76.5mm being 15mm above the 35-year average.

Due to the cloud cover it was another mild night with a minimum of 11.6C, which was 2.C above average.

Saturday arrived with almost continuous showers from a band moving east to west.