August 2013 was the warmest, driest and least windy August ever recorded at Bracken House. On the first day of the month, the temperature reached 29.9°C at 17:38. This was the highest ever recorded here, beating the previous best of 29.0°C recorded on the 13th July. The minimum temperature recorded was 8.6°C on the 31st at 06:42, the highest minimum ever recorded in August. The average temperature for the month was 16.2°C, also a station record for August. The average high temperature was 20.9°C and the average low temperature was 12.2°C. The mean temperature for August is now 15.4°C.
The average dew-point for the month was 12.8°C, with the highest being 21.6°C at 14:05 on the 1st, and the lowest being 5.6°C at 05:48 on the 31st. The maximum heat index was 32.3°C at 17:28 on the 1st, a station record. There were 83.8 hours of sunshine in the month, higher than in 2012, but well down on the 135.6 hours in July.
Rainfall for August 2013 was only 17.6 millimetres, the 7th driest month on record, and the driest ever August. 5.6 millimetres fell on the 5th, and 4.6 millimetres on the 16th, with precipitation being recorded on 14 days. 273.6 millimetres of precipitation has been recorded so far in 2013, 76.3 millimetres below the average at this time of year. The average rainfall for August is now 52.8 millimetres.
The maximum barometric pressure was 1028.9 millibars, recorded at 23:15 on the 31st, and the lowest was 1002.1 millibars, at 22:42 on the 17th. The average pressure for the month was 1016.1 millibars.
As with the rest of summer, winds were very light. The maximum wind speed recorded was 16.1 mph from 270° (W) on the 17th at 17:42, and the maximum gust speed was 23.0 mph from 248° (WSW) on the 17th at 17:36. The average windspeed for the month was 2.8 mph and the average gust speed was 5.2 mph. The total windrun was 1822.4 miles.
Weather Underground graph for August 2013.
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