ON PBS WISCONSIN AND ON WISCONSIN PUBLIC RADIO.

ALSO ON THE EASTERN SIDE OF THE STATE, TEMPERATURES OUTSIDE MIGHT BE FREEZING BUT FOR TWO WISCONSIN CITIES THE AVERAGE WINTER TEMPERATURE HAS INCREASED MORE THAN ANYWHERE ELSE IN THE UNITED STATES.

NATHAN MORE.

>> WILL WILL AND GREEN BAY HAVE SEEN AVERAGE WINTER TEMPERATURES INCREASE BY 6.1 DEGREES AND 5.7 DEGREES SINCE 1970.

THAT MAKES MILWAUKEE THE SECOND FASTEST WARMING CITY AND GREEN BAY THE FIFTH.

PART OF THE CLIMBING TEMPERATURE COMES FROM LAKE MICHIGAN WHICH IS SEEING A DECLINE IN ICE COVERAGE OVER THE LAST 50 YEARS.

HOWEVER, WISCONSIN'S COAST ISN'T THE ONLY AREA WITH QUICKLY RISING THERMOMETERS.

THE NORTHWEST HAS SEEN WARMER WINTER DAYS THAN SOUTHERN WISCONSIN A TREND EXPECTED TO CONTINUE FOR DECADES.

WITH RISING TEMPERATURES COMES CONCERNS.

WINTER WAVES ARE MORE LIKELY TO CRASH TO SHORELINES SPEEDING UP EROSION AND DAMAGING INFRASTRUCTURE AND WARMER WEATHER WILL EVENTUALLY MEAN LESS SNOW HARMING WILDLIFE.

WITHOUT DRASTIC CHANGE WISCONSIN WILL WARM UP TO 8 DEGREES THIS