National Weather Service
Maps, terms, forecasts, links to dozens of other sites.
Weather.com: Winter Central
Forecasts, safety resources and more.
The Old Farmer’s Almanac Weather History
From this page you can find out what the weather was like for any of 1,500 locations around the United States or Canada on any date from 1994 to the present.
National Snow and Ice Data Center
Stats, terms and resources galore!
Latest snow conditions for all major North American ski and snowboard areas. Just click on the state or area of Canada you want.
OutdoorPlaces.com: Frostbite Treatments
A great checklist of treatments.
Cool tips on how to winterize your bike in the snow, etc.
Regular weather updates, including maps.
Weather data from 1994-present.
Chronological Listing of Early Weather Events
Provides a weather resource for years 0 A.D. to 1900 A.D. This weather chronology is now in its third revision. It is 580 pages long and the pdf file is 9.4 MB, so be a little patient in downloading file.
National Climatic Data Center
Up-to-date weather data.
In-depth coastal forecasts.