2016 was a particularly hot year, according to Met Éireann. It may not have been the Bahamas, or even Torremolinos, but our weather was strangely warm for a lot of the year.
Windy, wet, and very mild was the name of the game, as the north Atlantic Jet Stream steered unsettled weather over our island. Almost all annual mean air temperatures were on or slightly above their Long-term Average (LTA). It was the 17th warmest year since 1900!
High pressure prevailed from the latter part of May well into June bringing a lot of fine, settled and sunny weather. The rest of the summer period was changeable again, as several Atlantic depressions affected the country.
Nevertheless a brief fine spell between 17th and 19th of July brought the warmest days of the year. The autumn season began unsettled, but then an anticyclone dominated through October, November and much of December; a period noted for mainly dry weather and slack winds.
However conditions changed abruptly as Atlantic depressions brought heavy rain and strong winds over the Christmas period, though conditions did abate and it remained mild till the end of the year.
The highest temperatures were recorded in mid-July with the highest temperature of 2016 reported at Mount Dillion, Co Roscommon on July 19th with 30.4°C.
The lowest temperatures of the year were recorded at the end of both February and November with the lowest air temperature of 2016 was reported at Markree, Co Sligo on November 25th with -7.3°C, while the year’s lowest grass temperature was reported on February 24th with -10.4°C at Carlow (Oak Park).
Annual rainfall totals were mainly below their Average. The driest month relative to LTA was October with the majority of stations reporting around 50% or less of LTA. The wettest monthly conditions were in parts of the South in February with stations reporting near or over double their average rainfall.
Annual sunshine totals were lowest at Knock Airport with an annual total of 1099.6 hours (daily mean of 3.0 hrs/day). The highest annual sunshine total was 1411.5 hours (daily mean 3.9 hrs/day) at Dublin Airport. The sunniest day for 2016 was reported on June 2nd at Malin Head, Co Donegal with 15.8 hours. The number of dull days ranged from 78 at Dublin Airport to 123 at Knock Airport.