The number of hours of sunshine was 158.9, which is about 10% higher than the April average.
The mean monthly temperature was 9.1 degrees Celsius (48.5 degrees Fahrenheit), which is about one degree C higher than average. The maximum temperature was 18.2 degrees C on the 20th, and the lowest air temperature was 0.3 C on the 19th. There were eleven nights with grass frost and none with air frost.
These data refer to observations at Armagh Observatory, which has been recording the weather at Armagh since 1795.
FOR FURTHER INFORMATION PLEASE CONTACT: John McFarland at the Armagh Observatory, College Hill, Armagh, BT61 9DG. Tel.: 028-3752-2928; FAX: 028-3752-7174; jmfarm.ac.uk; URL: http://climate.arm.ac.uk/.
|Last Revised: 2009 May 5th
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