Click the button below for an Excel file giving daily data for 2026:-
April 2026 was much drier and warmer than usual.
Overall, the average maximum temperature of 15.1°C was 1.1°C above the Usk average for April of 14.0°C with a peak of 23.2°C on the 8th. The minimum temperature was 1.1°C on the 6th and there were no days of air frost. It was the fifth warmest April in Penallt in the last 16 years.
There were 21 days when no rain (or a trace) fell, the wettest day being 15th when 15.4 mm fell. It was much drier than usual overall with the total rainfall of 39.8 mm being 59% of the Usk* average for April of 67.5 mm.
March 2026 was the driest month in Penallt since last August, the six months since then all having significantly higher rainfalls than average. The total rainfall was 62.8 mm, about 76% of the Usk* average for March of 83.1 mm.
There were 15 days on which rain fell (>0.2 mm), the wettest being the 12th with 32.8 mm.
It was a little warmer than usual too. Overall, the average maximum temperature of 11.6°C was 0.5°C above the Usk average for March of 11.1°C. The coldest by day was the 7th, with a maximum of 6.6°C, and the warmest was the 31st with a maximum of 18.4°C. There were no days when the minimum fell below zero.
February 2026 was about average for temperature by day, significantly warmer by night and very much wetter than usual. The month had one frosty morning when the temperature dropped to -1.4°C on the 14th. Overall, the average maximum temperature of 8.8°C was 0.3°C above the Usk average for February of 8.5°C with a maximum of 13.7°C on the 25th.
The average minimum temperature was 4.4°C (3.3°C above expected), a reflection on the continuous cloud cover during the month, broken only by the rare appearance of blue skies which allowed colder nights.
There were 6 days on which no significant rain (0.2 mm or less) fell, and a total monthly rainfall of 214.8 mm was 2.46 times the Usk* average for February of 87.4 mm. The wettest day was the 5th with 24.2 mm.
The meteorological winter (Dec/Jan/Feb) just ended had a total rainfall of 664.4 mm, or 98% above the Usk average of 336.9 mm. This made it the second wettest winter since Penallt records began in 2011, the wettest being 2013/14 with an incredible 777.8 mm
January 2026 was much colder and very much wetter than usual. The average maximum temperature of 6.4°C was 1.7°C below the Usk average for January of 8.1°C. The minimum temperature sank below 0°C on only two days however. The warmest day was the 11th (max = 10.6°C) and the coldest was the 5th with a maximum of 1.3°C.
The measured rainfall was 239.0 mm, was 87% above the Usk* average for January of 127.6 mm. This made January the second wettest January since Penallt records began in 2011 and the 8th wettest month overall in this time. Rain was measured on 25 days in the month, the wettest being the 27th when 42.4 mm fell.
* Usk is the nearest Met Office station for which long term averages (1981-2010) are available.