Warning!
I have run this weather station for over 30 years. In that time the
average annual temperature has risen by just under 1.0°C. This in undeniable
as I don't have any evidence that the equipment is failing.
Instead of having compassion, caring and intelligence in dealing with this
burgeoning issue, most of us seem to be stuck in the conditioning of
mainstream politics which thinks the only way out of everything is economic
growth. We have trapped ourselves in this system because we too are mainly
greedy for more and more, as if it is the saviour of everything. It isn't!
Nature can do without us, but we cannot do without nature. Until we care
about nature, have compassion toward other people and implement intelligent
solutions (i.e. without nationalism), we will continue to destroy the planet
and show ill will to one another. The time to become aware is always now.
Doing the weather for the last 30 years plus, is like watching one aspect of
the slow motion global car crash.
Barry. August 2025
____________________________________________________________________________
October 2025: It
was a very dull month, the dullest on record for October, from data starting
in 2005. With 26.4% of the maximum sunshine it was 7.5% less than the
average. The total rainfall of 80.0 mm was 84.4% of the 30 year average for
the month. This made it the driest Coober since 2018.
The average temperature of 12.7°C for the month was the lowest since 2020
but still 0.7°C above the 30 year average (1990-2020). Mean minimum
temperatures were 1.1°C above the 30 year average. The maximum daily
pressure at 09:00 of 1035mb was the equal 3rd highest for October from data
that started in 1995. The highest daily wind speed average of 13.1 mph on
the 4th was the windiest October day since 2018.
Summer 2025:
It was the warmest summer since records
began in Bristol 135 years ago. With an average temperature of 19.9°C. The
previous hottest summer was in 1995 when the average temperature was 19.4°C.
The 30 year average for a summer is 17.7°C so 2025 was 1.7°C above the
1991-2020 average.
The summer rainfall was below average with 112.3 mm for the 3 month total.
It was the 15th driest in 144 years of data. The 30 year average summer
rainfall is 212.7 mm so 2025 was 53% of the average.
Annual 2024: The annual rainfall for Bristol in 2024
was 1153.4 mm this makes it the 10th wettest year since this data started in
1853. The wettest year was 2012 with 1315.4 mm. The 30 year average for the
city is 913.8 mm so 2024 represents 126% of the average. The annual average
temperature for 2024 was 12.4°C. That made it the equal 4th warmest with
2020, and 0.8°C above the 30 year average of 11.6°C. Continuous average
temperatures for Bristol started in 1891. It was the dullest year from
records starting in 2005 with only 37% of the maximum sunshine recorded.
To
view a full report of the Bristol Annual Weather report 2023 and a discussion
of trends etc click here. This is a Word created .doc
document which is produced annually for a Bristol Naturalist Society
publication. Please acknowledge the source if quoting any of the contents.
Thank you.
The 2024 Annual
summary is here: http://www.bristolweather.org/weather2024annual.htm
For the full monthly summary please go here: http://www.bristolweather.org/weather2025
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).