Linear regression analysis of regional snow cover series over 1955/56 to 2001/02 snow cover seasons. Only statistically significant trends are indicated. Regional series were generated from in situ daily snow depth observations at stations with at least 38 years data in the period. The Eastern and Western Canadian averages were restricted to stations with complete data in the period. See below for definition of annual snow cover statistics, and coordinates of regions.

	Southern B.C.	Southern Rockies*	Prairies	W. Boreal	W. Arctic	E. Arctic	S. Ont-Que	Maritimes	W. Canada	E. Canada
No. Stations	10	13	29	11	11	7	30	33	28	24
Start Date of Contin. Snow	Later (0.28 d/yr)	-	-	-	-	Later (0.20 d/yr)	-	-	-	-
End Date of Contin. Snow	Earlier (0.34 d/yr)	Earlier (0.26 d/yr)	Earlier (0.30 d/yr)	Earlier (0.27 d/yr)	Earlier (0.22 d/yr)	Earlier (0.18 d/yr)	-	-	Earlier (0.31 d/yr)	-
SCD1 Aug-Jan	Decrease (0.27 d/yr)	-	-	-	-	Decrease (0.15 d/yr)	Decrease (0.22 d/yr)	-	-	-
SCD2 Feb-Jul	Decrease (0.42 d/yr)	Decrease (0.31 d/yr)	Decrease (0.36 d/yr)	Decrease (0.31 d/yr)	Decrease (0.29 d/yr)	Decrease (0.28 d/yr)	Decrease (0.20 d/yr)	-	Decrease (0.33 d/yr)	Decrease (0.17 d/yr)
Total SCD	Decrease (0.71 d/yr)	Decrease (0.49 d/yr)	Decrease (0.50 d/yr)	Decrease (0.43 d/yr)	Decrease (0.34 d/yr)	Decrease (0.43 d/yr)	Decrease (0.42 d/yr)	-	Decrease (0.46 d/yr)	Decrease (0.27 d/yr)
Max. Snow Depth	-	-	-	-	Decrease (0.41 cm/yr)	Decrease (0.26 cm/yr)	-	-	Decrease (0.44 cm/yr)	Decrease (0.37 cm/yr)
Date of Max. Depth	-	Earlier (0.37 d/yr)	Earlier (0.60 d/yr)	-	Earlier (0.52 d/yr)	Earlier (0.72 d/yr)	-	-	Earlier (0.33 d/yr)	-
Mean Snow Depth	-	-	-	-	Decrease (0.22 cm/yr)	Decrease (0.19 cm/yr)	-	-	Decrease (0.22 cm/yr)	Decrease (0.22 cm/yr)
Stdev of Snow Depth	Decrease (0.16 cm/yr)	Decrease (0.09 cm/yr)	Decrease (0.06 cm/yr)	-	Decrease (0.14 cm/yr)	Decrease (0.08 cm/yr)	-	-	Decrease (0.13 cm/yr)	Decrease (0.09 cm/yr)
Median Snow Depth	-	-	-	-	Decrease (0.23 cm/yr)	Decrease (0.21 cm/yr)	-	-	Decrease (0.23 cm/yr)	Decrease (0.24 cm/yr)

• No. Stations: number of stations included in regional average
• First Date of Continuous Snow Cover: the first date when there were 14 consecutive days with daily snow depth greater-than-or-equal to 4 cm.
• Last Date of Continuous Snow Cover: the first date when there were 14 consecutive days with daily snow depth less than 4 cm.
• SCD1: The number of days in the first half of the snow cover year (Aug-Jan) with daily snow depth greater-than-or-equal to 2 cm.
• SCD2: The number of days in the second half of the snow cover year (Feb-Jul) with daily snow depth greater-than-or-equal to 2 cm.
• SCD Total: The total number of days in the snow cover year with daily snow depth greater-than-or-equal to 2 cm.
• Max. Snow Depth: Maximum daily snow depth during period of continuous snow cover.
• Date of Max. Depth: Date corresponding to maximum reported daily snow depth for snow season.
• Mean Snow Depth: Mean daily snow depth during period of continuous snow cover.
• Stdev of Snow Depth: Standard deviation of daily snow depths during period of continuous snow cover.
• Median Snow Depth: Median daily snow depth during period of continuous snow cover.

Region Coordinates:

Lat/long boxes used to derived region snow cover series. Regional series were generated by averaging normalized annual statistics from all stations within a defined area.