October 2024: It was
a warmer and wetter than average month, rather dull and the least windiest
month with regard to the average monthly wind speed.
The average temperature of 13.1°C was 1.1°C above the 30 year (1990-2020)
average for the month. Rainfall at 135.0% above the 30 year average and was
a total of 128.0 mm. It was the 2nd dullest October on record with 31.3% of
the maximum sunshine since records began in 2005. The dullest was October
2011 with only 28.3%. The average for October is 34.3%.
October 2024 was the least windy of any month with regard to the average
wind speed since data started in 2005 with an average wind speed of 2.2 mph.
It was the equal lowest average maximum wind gust at 16 mph since data
started also in 2005.
The highest daily minimum temperature of 13.3°C on the 16th was the lowest
for the month since 12.8°C was recorded in October 2018.
Summer 2024: It was
the coolest summer since 2015. It was still the joint 34th warmest, with
1921, in 134 years of complete data for the city of Bristol. With an average
temperature of 17.4°C it was 0.3°C below the 30 year average (1991-2020) of
17.7°C. The average maximum temperature of the summer of 21.4°C was 0.5°C
below the 30 year average. The average minimum temperature of 13.7°C was
0.1°C above the average temperature.
The summer rainfall was below average with 139.5 mm for the 3 month total.
It was the 24th driest in 143 years of data. The 30 year average summer
rainfall is 212.7 mm so 2024 was 66% of the average.
Annual 2023:
The The annual rainfall for Bristol in 2023 was 1247.6 mm This makes it the
2nd wettest year since this data started in 1853 for the city.
The wettest year was 1315.4 mm in 2012. The 30 year average for the city is
913.8 mm so 2023 represents 137% of the average
The annual average temperature for 2023 was 12.6°C. That was the second
warmest. 2022, with an annual average temperature of 12.7°C, was the warmest
since continuous records started in 1891. The 30 year average temperature
(1991-2020) for the city was 11.6°.
To
view a full report of the Bristol Annual Weather 2022 and a discussion of trends
etc click here. This is a Word created .doc document
which is produced annually for a couple of Bristol Naturalist Society
publications. Please acknowledge the source if quoting any of the contents.
Thank you.
The
2023 Annual summary is here:
http://www.bristolweather.org/weather2023annual.htm
For the full monthly summary please go here:
http://www.bristolweather.org/weather2024
October.htm
The
Meteorological site is situated in an urban housing area approximately one
mile to the south of the Centre of Bristol.
This area is in a district called Totterdown.
Statistical correlations with the Bristol
Meteorological Office site, that was
less than two miles to the North and was
situated on top of a City Centre office block, were generally good with
rainfall and barometric data particularly close.
The site of the station is approximately 34 metres above sea level with the
manual instruments mounted in a Stevenson screen. The screen is sited
centrally in a small concreted garden area. A Snowdon
rain gauge is mounted correctly in the ground but does not have the full open
space required around it. A Davis
Vantage Pro2 Plus automatic weather station (AWS) was
added in May 2005 and this is mounted 4 feet above a concrete shelter. The
wind data is gathered automatically from a Davis Vantage Pro2 Plus anemometer which is
sited 3.3 metres (10 feet) above the house top.
Manual observations are still taken at approximately 09:00 hours GMT every
day for rainfall and cloud cover. Rainfall manually recorded in the Snowdon rain gauge is entered for the previous day. The
wind data is constantly logged and automatically reset at 24:00 hours GMT
every day (in the summer BST -1 hour. The Davis rainfall tipping bucket was recalibrated in November 2005 and is now
consistently under 3% under recording (an improvement from installation in
May 2005 when 10% was more
typically the norm).
Since the arrival of the Davis
Vantage Pro2 Plus equipment in May 2005 temperatures, humidity and barometric
pressure are recorded from the new equipment. These figures will be more
accurate and will be taken at exactly 09:00 GMT (in the summer BST -1 hour)
as the data is now logged to a computer.
By default the Davis
equipment records every parameter for the 24 hour period 00:00 to 23:59 BST
or GMT. Data analysis will enable manual data extraction of temperatures and
rainfall to 09:00 GMT (adjusted in the summer). Due to the 0.2 mm (tipping
bucket) measurements of precipitation recorded by the Davis equipment the
Snowdon rain gauge will still be used due to its greater accuracy (see
above).