RBGE Weather Station

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Last month data:

Overall, last month’s temperatures, rainfall and sunshine were close to average for August. However, the grass and soil temperatures remain significantly above average.

The “grimness” value (G=relative precipitation/relative sunshine) for August was 1.1.

Click here for the latest weather chart from our station.

Past weather charts since January 2009 are available here.

 

Monthly Averages (1981-2010)

Weather Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
                       
Daily Max ºC 7.0 7.6 9.5 11.7 14.6 17.2 19.1 18.9 16.5 13.1 9.6 7.0
                       
Daily Min ºC 1.4 1.5 2.8 4.4 6.8 9.6 11.4 11.4 9.4 6.5 3.7 1.3
                       
Sunshine hrs/month 54 79 115 145 187 166 171 161 129 102 71 47
                       
Precipitation mm/month 69 48 53 41 52 60 66 61 66 77 64 62
                         

 

 

Extreme Weather (January 1959 to January 2015)

Sunshine

The month which received the greatest amount of sunshine was July 1989 with a total of 263.1 hours (273.6 hrs in a 31 day period over July/August 1989).

The sunniest year was 1995 with 1666.9 hours (118% of average) and our sunniest day was the 25th May 1988 with 15.7 hours (however, there is a small problem with the sunshine recorder, as it gets shaded in the early mornings during June and July).

In contrast our dullest year was 1983 with only 1230.8 hours (87%) of sunshine and our dullest month, with 16.8 hrs of sunshine was December 1978!

Temperatures

Our highest maximum temperature was recorded on the 5th of August 1975 with 30ºC and the lowest minimum air temperature was -15.5ºC on the 11th of January 1982.

The warmest 12 month period ended in May/June 2007 (10.77ºC average air temperature) and the coolest in November 1979 (7.98ºC).

Precipitation

On the 26th July 1985 we recorded 82.1mm of rain over a 24hr period. The wettest year on record at the RBGE was 2012 with a total of 959.2mm (1032.8mm in 12 months in 2012/2013 or 148% of the average) and the wettest month has been August 2008 with 202.3mm; that is 326% of the average for August! (230.6mm in a 31 day period in July/August 2008). December 2010 brought the thickest layer of snow with 22cm at RBGE (though it was a lot higher in other parts of Edinburgh). The previous record had been 8cm on several occasions. Interestingly, the longest "snow free" period (i.e. where no snow was recorded at 9GMT) was from March 2006 to February 2009, almost three years.

Our driest year was in 1959 when we only had 436.2mm of rain (63% of the average), and the driest month was February 1993 when we had a mere 3.7mm of precipitation (however, there was only 1.2mm of rain in a 31 day period in July/August 1995). 

Average and extreme rain and sunshine over the year can be seen here, temperature averages and extremes here. For some further weather curiosities, such as occurrences of frost, fog or drought please click here.