National Climate Data and Information Archive
www.climate.weatheroffice.gc.ca
Common menu bar links
Notices:
As of November 19 2009, changes have been made to how Wind Chill and Humidex values are calculated. A detailed outline of these calculations can be found in the Glossary.
We are pleased to announce the release of a new feature, Historical Radar to our site. The Historical Radar feature allows users to view historical radar images from 2007 to present at the national, regional and local levels. It can be accessed by clicking the “Historical Radar” link on the left menu bar.
As of July 24 2008, changes were made in how data are accessed at 25 stations. Please click here for further details.
The Notice Inventory contains a record of all past and current Notices.
For those with a high speed Internet connection CD-ROM images are available for download.
Please note that download times can vary from a few to several hours depending on network traffic.
The data licensing agreement allows for redistribution of data under certain conditions. Click here for a copy of the agreement.
The 2002 CDCD West CD (106 MB ZIP) contains daily temperature, precipitation, and snow-on-the-ground data for 4,442 locations in British Columbia, Alberta, Saskatchewan, Manitoba, Yukon Territory, and the Northwest Territories. Data is available for the complete period of record for each station until the end of 2002. Software on the CD provides access to the data.
The 2002 CDCD East CD (108 MB ZIP) contains daily temperature, precipitation, and snow-on-the-ground data for 6,774 locations in Ontario, Quebec, the Atlantic Provinces, Yukon Territory, Nunavut and the Northwest Territories. Data is available for the complete period of record for each station until the end of 2002. Software on the CD provides access to the data.
Frequently Asked Questions
What is an ISO file?
An ISO is a file containing a CD-ROM disk image. This CD-ROM disk image is an exact copy of the CD-ROM. Think of it as the equivalent of a screen capture, but instead of capturing the information on a screen, this image captures all of the information on a particular data CD-ROM. When burned as a disk image, the ISO file is turned into a duplicate CD of the original CD. If burned as a file, instead of a disk image, the CD becomes a copy of the downloaded ISO file, and the files and directories are not accessible.
How do I use this CD-ROM image ISO to install data on my system?
If you have a CD burner and software that can burn ISO or CD-ROM disk images, you can burn the ISO to a CD. This CD can then be used to run or install the CD and its software on your computer.
Why do I see one large ISO file on my burned CD instead of files and directories?
This happens when you copy the downloaded ISO file to a CD instead of burning it as a disk image. Some software will automatically recognize a ISO file and burn it correctly. Some software requires a specific menu selection such as 'Create CD From Disc Image', 'Burn Image', or something similar. Instructions for several burning programs can be found there.
