Photos: Warm winter weather in Southcentral Alaska

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Small ice floes collect on Turnagain Arm mud near the Potter weigh station on Wednesday, January 14, 2015. Unseasonably warm temperatures have left the region with less than normal snow and ice.

In the planet's hottest year on record, warming was especially dramatic in Alaska, federal scientists reported.

The past year -- Alaska's warmest since records began in 1918 -- the average temperature was 4.04 degrees Fahrenheit above the average posted from 1971 to 2000, according to the National Climatic Data Center at the National Oceanic and Atmospheric Administration.

Some notable Alaska weather was recorded just last month, the National Climatic Data Center said in its annual national report.

Read more: Alaska's 2014 heat-up was dramatic, federal climate center says