DRY, MILD AUGUST WITH ABOUT AVERAGE SUNSHINE

Armagh Observatory, 9th September 2016. Armagh Observatory reports that August 2016 was rather drier than average, with just two-thirds of the normal August rainfall at Armagh. It was also slightly warmer than average, with a mean monthly temperature nearly 0.5 C higher than the most recent (1981-2010) 30-year average. The number of hours of strong sunshine was close to average.

Total precipitation was 52.65 mm (2.1 inches) including three trace values, which is approximately 64% of the long-term (1838-2010) average August precipitation at Armagh and 69% of the most recent (1981-2010) 30-year average. This was the driest August at Armagh for three years, that is, since August 2013. The wettest day was the 20th, with 11.4 mm (0.45 inches) of rainfall.

The mean monthly temperature was 15.8 degrees Celsius (60.5 F), approximately 1.2 degrees C warmer than the long-term (1796-2010) August average at Armagh, and nearly 0.5 C warmer than the most recent (1981-2010) 30-year August average. This was also the warmest August since 2013.

The warmest day (highest maximum air temperature) was 23.2 degrees C, which occurred on the 16th. The coolest day (lowest maximum air temperature) was 16.0 C on the 10th. The coolest night (lowest minimum air temperature) was 7.6 C, occurring on the 29th. The warmest night (highest minimum air temperature) was 15.5 C on the 17th. There was no ground frost, the lowest minimum grass temperature being 1.3 C on the 29th.

Meteors, or shooting stars, from the predicted Perseid meteor outburst were seen on the night of the 11th/12th, a day before the normal maximum of this regular annual shower; and the observer noted a sporadic meteor around 11pm (BST) on the 28th. Gulls were seen during the early evening on both the 3rd and 21st.

There was a total of 134.6 hours of strong sunshine. This is slightly more than the long-term (1881-2010) August average at Armagh, but nearly identical to the most recent (1981-2010) 30-year average for strong sunshine at Armagh (133.4 hours). The sunniest day was the 15th, with a total of 13.6 hours of strong sunshine.

August marks the end of the meteorological summer (June, July and August). Summer 2016 was mild, approximately 0.6 degrees warmer than the Armagh average, and the warmest since 2013. It was also rather duller than average and with approximately average rainfall.

These data refer to observations at Armagh Observatory, which has been recording the weather at Armagh since 1795.

FOR FURTHER INFORMATION PLEASE CONTACT: Mark Bailey at the Armagh Observatory, College Hill, Armagh, BT61 9DG. Tel.: 028-3752-2928; FAX: 028-3752-7174; meb@arm.ac.uk; URL: http://climate.arm.ac.uk/.

Last Revised: 2016 September 9th