Unusually cold and stormy start with snow. Then very wet and unsettled with continued low pressure.
Further snow mid-month, then less cold but still very wet. Very few fine days.
Temperature: [Minimum]:
Lowest: -4.5 degs C on the 1st. Lowest minimum in any month since -4.6 on 7th January 2009, which was the lowest temperature recorded at this location [since at least 2003]. Previously in March -2.3 in 2013.
Highest: 9.1 degs C on the 10th. Every March since at least 2004 has had a milder night.
Average minimum: 3.15 degs C. Lowest of the last 15 Marches. Previously 4.13 in 2016.
Nights with temperature below 5 degs C = 20. Most for March since at least 2003. Previously 19 in 2016.
Nights with temperature below 0 degs C = 5. Most for March since at least 2003. Previously 4 in 2005.
Temperature: [Maximum]:
Lowest: 1.0 degs C on the 1st. *This maximum was only reached in the evening, with daytime temperature peaking at -1.8 degs C, thus making it the coldest 'day' ever at this location [since at least 2003] exceeding negatively the max of -1.3 on the previous day, 28th February. Previous coldest March day was 3.2 in 2013.
Highest: 14.7 degs C on the 25th. Every March since 2003 [except 2015 with max 14.4] has had a higher temperature than this.
Average maximum: 10.2 degs C. 2nd lowest of the last 15 Marches. Lowest = 9.85 in 2013.
Days with temperature above 20 degs C = 0.
Days with temperature above 25 degs C = 0.
Rainfall:
Total: 195.1 mm. Wettest March since at least 2009.
February 2018: 92.0 mm.
March 2017: 108.1 mm.
Wettest day: 23.5 mm on the 9th. Wettest March day since 2013.
Other days with >20 mm: 21.3 mm [14th].
Wettest spells: 1st to 10th: 82.2 mm; 14th to 17th: 41.1 mm; 22nd to 24th: 40.4 mm.
Driest spells: 19th to 21st: 1.0 mm [snow].
Completely dry days: 4. Fewest of the last 10 Marches.
Days with no measurable rain: 6. Fewest of the last 10 Marches and equal fewest of any month since January 2016.
Cumulatively: 2018 = 504.0 mm.
2017: 286.2 mm. [+76.1%].
Snow fell/lying on 1st, 2nd, 18th, 19th.
Thunder:
None this month.
Pressure:
Lowest: 980.0 mb on the 11th.
Highest: 1038.8 mb on the 21st.
