See the trend in winter high temperatures across the U.S.
Halloween weather can be highly variable depending on the year.
The annual Arctic sea ice minimum extent has been below average every year since 2002.
Climate change has delayed the date of the annual Arctic sea ice minimum.
The rapidly warming Arctic is already impacting Alaska, as earlier ice breakups on the Tanana River are more likely.
This year’s early Western spring snowpack is higher than previous years, but remains on a long-term downward trend.
The annual maximum Arctic sea ice extent is threatening to set a record low this year.
Overall, Great Lakes ice cover is on the decline.