December 2014 warmer than average but ends in a bang!

December 2014 was slightly warmer than average although the very last day of the month was the coldest December day ever. The mean monthly temperature of 15.2°C was 0.5°C above the average.

The average maximum monthly temperature of 17.8°C was 0.4°C above average while the average minimum monthly temperature of 12.6°C was 0.7°C above average.

The coolest December ever was in 1991 with a mean monthly temperature of 12.4°C while the warmest ever was in 1989 with a mean monthly temperature of 16.2°C.

The warmest day in December 2014 was on the 1st with a high of 23.3°C. The coolest night in December 2014 was on the 31st with a low of 3.6°C. This was the coldest ever December night. The maximum temperature on this last day was also very low at only 7.1°C. This was the coldest day on record of all time. Some very brief snow flurries were also observed over Dingli in the early morning.

The warmest December day ever was in 1987 with a high of 24.9°C while the coldest night ever was on the last day of December 2014.

A total of 163.0mm of rain were measured in December 2014. This was above the mean of 107.5mm. There were 17 days of rain, 6 days with lightning or thunder and 5 days with hail. The wettest December ever was in 2007 with 229.9mm while the driest ever was in 1987 with just 23.6mm.

The wind blew mainly from the west with an average wind speed at Zebbug Malta of 10.9 km/h. The strongest gust at Zebbug Malta was of 64.8km/h on the 28th from a WSW direction as a deep trough of low pressure moved southeastwards across Italy.

The mean monthly sea-level pressure was 1016.8hPa, with the highest of 1031.3Pa on the 22nd and the lowest of 1003.2hPa on the 28th as an intense frontal system moved southeastwards across Italy.