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Notices:

A new set of IDF curves was produced on February 09, 2012 and posted on March 09, 2012. Please read the Whats_New_EC_IDF.pdf file for a list of all of the changes.


OTTAWA MACDONALD-CARTIER INT’L A, HAMILTON A, DEER LAKE A, GANDER INT'L A, ST.JOHN'S A, SASKATOON DIEFENBAKER INT'L A, LONDON INT'L A, SAULT STE. MARIE A, EDMONTON INT'L A, YARMOUTH A, THUNDER BAY A, CHURCHILL A and SMITHERS A weather reporting stations have switched over to new NAV CANADA sensors and reporting tools. Due to some unanticipated data processing issues related to the new data flow, the display of daily data from these stations is not available on our website at present. However, hourly data is now being displayed for the new stations: OTTAWA INT'L, HAMILTON, DEER LAKEGANDER INT'L, ST. JOHN'S INT'L, SASKATOON DIEFENBAKER INT'L, LONDONSAULT STE MARIE, EDMONTON, YARMOUTH, THUNDER BAY, CHURCHILL and SMITHERS.  For more information, please click here and expand the message. Thank you for your patience while we work to fix these current issues.


The Notice Inventory contains a record of all past and current Notices.

The "Weather Winners" Highlights

Weather Categories Selected For The Cities With The Most Comfortable Weather

Cities placed in the top ten of these categories:

  • mildest winter
  • warmest year-round
  • fewest freezing days
  • warmest spring
  • warmest fall
  • driest city
  • sunniest year-round
  • sunniest winter
  • sunniest spring
  • sunniest fall
  • clear skies year-round
  • most days with light wind
  • fewest fog days

Cities placed in the middle ten of these categories:

  • hottest summer

Cities placed in the bottom ten of these categories:

  • most very wet days
  • most heavy snow days
  • longest snow cover season
  • most freezing rain days
  • most smoke and haze days
  • most high wind chill days
  • humidex days above 30°
  • most humid summer city
  • windiest winter


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