WOODBURY - Officials say 2012 was Long Island's warmest year on record.

The average temperature recorded at Brookhaven National Lab was 54.2 degrees. In Islip, the number was 55.3 degrees.

The numbers break the 1998 record of 55.0.

Experts say 2012's pattern comes along naturally every 5 years or so.

However, climate change can cause above normal temperatures, resulting in such record highs.