The temperature in Kilkenny reached 21.7°C yesterday, according to data from Niall Dollard of Kilkenny Weather.
This beats the twenty-five Met Éireann stations for warmest day of the year so far.
The highest temperature ever recorded for May was 28.4°C at Ardfert Liscahane, County Kerry, in 1997.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.