A notable feature of February 2018 was the high
levels of solar radiation unusual for February. 2018 was the sunniest since
this data began in 2006. The average solar radiation for February in Bristol
is 28.1% of the maximum but in 2018 this was 36.8%. This February was almost
as sunny as some Marches and sunnier than some Octobers.
Another feature of the month was the low temperature for the last week of
The average temperature of 4.4°C was -1.2°C below the 30 year average and
the coldest since 2013 which was also 4.4°C.
The average minimum temperature of 1.6°C was the lowest for February since
0.3°C was recorded in 1996.
Rainfall was low at 34.3mm which represents only 55.8% of the 30 year
The -4.3°C low
temperature recorded on the 28th was the lowest for the month since -6.0°C
was recorded on 4th February 2012.
The lowest daily mean temperature of -1.5°C on the 28th was the equal lowest
daily mean with 3rd February 2012 since data started in 1994..
The average winter temperature (Dec-Feb) was 5.9°C which is the 35th warmest
winter in Bristol in 128 years of data.
The total rainfall of 247.1mm for the three months of winter makes it the
54th wettest in 137 recorded years of data for Bristol.
This winter is just under the 30 year average rainfall (1981-2010) for the
The annual average temperature of 12.1°C in 2018 was 0.8°C above the 30 year
average for Bristol. This makes 2017 the 3rd warmest year (equal with 1989,
1990 and 1997). Continuous records for average temperature having been found
since 1891 in Bristol.
The Total rainfall for 2017 was 751.0 mm. This is 138.9 mm less than the 30
year average for Bristol and the driest year since 2011 when only
723.1 mm was recorded. 2017 was the 39th direst year in Bristol in 165 years
of continuous annual data for the city.
It was the dullest year on record since this data started in 2005 with a
annual average 0f 37.7% of maximum sunshine. The average is 40.0%..
2017 Annual summary is here:
For the full monthly summary please go here:
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