Minimum temperatures for the period January 16th-31st
2016: -4.5c at Durrow, Co. Laois on the 16th
2015: -6.2c at Dunsany, Co. Meath on the 19th
2014: -2.5c at Dungarvan, Co. Waterford on the 19th
2013: -6.4c at Gurteen, Co. Tipperary on the 23rd
2012: -4.0c at Castleconnell, Co. Limerick on the 28th
**Monthly minimums here are not exact degrees as in the old Met Éireann bulletins, they rounded temperatures to the closest/highest full figure - they changed this in 2012. They also do not give location names. Exceptions to this are Januaries where minimums for the month are recorded in the period 16th-31st, then they give the figure and location in the temperature section of their bulletin. So I apologise for those years with rounded up temperatures and no location**
2011: -8.6c at Waterford on the 31st
2010: -5c on the 25th
2009: -2c on the 21st/28th
2008: -1c on the 30th
2007: -4c on the 23rd/25th
2006: -6.7c at Birr, Co. Offaly on the 30th
2005: -4.6c at Glenties, Co. Donegal on the 23rd
2004: -7.7c at Kilkenny on the 29th
2003: -3c on the 23rd/30th/31st
2002: -1c on the 18th/24th
2001: -7.0c at Derrygreenagh, Co. Offaly on the 16th
2000: -5.0c at Ardfert, Co. Kerry on the 15th
1999: -3c on the 21st/22nd
1998: -5.2c at Phoenix Park, Co. Dublin on the 20th
1997: -6c on the 21st
1996: -7.7c at Kilkenny on the 28th
Information is originally sourced from Met Éireann's monthly weather bulletins.
I'll update on more soon, so far 2011 is the coldest.
Here's more of the 16th-31st January minimums
1995: -3.6c at Ardee, Co. Louth on the 30th
1994: -5c on the 29th
1993: -2.8c at Markree, Co. Sligo on the 31st
1992: -6c on the 27th/28th
1991: -8.0c at Markree, Co. Sligo on the 31st
Unlike Summers ending in "8", there's far less of a coincidence for Summers ending in "9" with quite a mix of them in there.
Data is sourced from the Hadley Centre.
Some people had the theory that Winters following Summers ending in "8" were very cold and wintry. However, this table I made of said Winters using the CET and 1981-2010 averages, proves that theory is wrong and there's quite a mix in there, especially Decembers.
Data sourced from the Hadley Centre & NOAA
All this bashing at Met Éireann this Winter and these storms has got me wondering when they've actually made bad mistakes. I looked back on the previous two windstorm seasons - 2015/16 & 2016/17, I found one "storm" that was named by Met Éireann but was an absolute fail and literally nobody remembers.
This "storm" being Ewan of February 2017.
This is the description of it on Wikipedia:
Maximum wind gust was 70mph.