August 2020 weather stats for the Western Isles.

Hello and welcome to a look back at our weather in July 2020 – We cover the Western Isles and the rest of the UK at the end of the blog.

Updated with stats from the Met Office.

Stornoway Airport had its driest August 36.4mm since August 1995 which had 33.2 mm. The second driest month of the year behind April 2020.

It was also the Sunniest August since 1999 which had 194 hours of sunshine compared to the 158 hours of Sunshine in August 2020.

South Uist range had 45.2 mm of rain during August.

August was an extremely dry month. It also had a chilly final week. Storm Ellen brought winds reaching 62 mph on the 20th August.

A flood alert was issued on the 10th August due to the risk of flooding from thunderstorms. No flooding was noted and the alert was lifted on the 12th.

SEPA rainfall Gauges in the Western Isles

Creed Bridge – 46.8 mm of rain in August. August 2019 had 198 mm of rainfall. Second driest month of the year so far behind April.

Laxdale (Harris) -63.8 mm of rain in August. August 2019 had 252 mm of rainfall. Second driest month of the year so far behind April.

Loch Tormasad  – 63.4 mm of rain in August. August 2019 had 214.4 mm of rainfall. Second driest month of the year so far behind April.

Mill Croft – 75.4 mm of rain in August. August 2019 had 243.4 mm of rainfall. Second driest month of the year so far behind April.

Some surprising differences in rainfall totals. More to follow.

Daily Records

Sunniest place in the UK twice and had the lowest minimum twice which shows the tops turvy nature of the month with the highs getting to 20C but the lows being down to 6C

Weather Warnings year to date

We had a number of weather warnings during this month. Which has increased the overall totals.

The total number of weather warnings to date for the Western Isles stands at 21.

Yellow – 21

Amber – 0

Red – 0

A further break down of the warnings.

Wind – 12

Snow and Ice – 2

Rain – 2

Thunderstorms – 3

Wind and snow – 1

Ice – 1

National Weather stats for August– from the Met Office

Stats from the Met Office highlight how far below the average rainfall was in August. The darker the brown the lower amount than average.

monthly_rainfall_2020-08_anomaly_1981-2010

It was also sunny then average for the Western Isles.

The only region to experience a sunnier than average August was north Scotland, with 119% of its average sunshine hours (139.7 hours). The UK as a whole only saw 88% of its average sunshine hours (142.6 hours).

monthly_sunshine_2020-08_anomaly_1981-2010

The above images come from the Met Office and the blog covering the above can be found here https://blog.metoffice.gov.uk/

I will do a further blog update later in the month with more specific Stornoway Airport stats.

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