Climate data and scenarios: synthesis of recent observation and modelling results, chapter 3.2.1


3.2.1 Summary tables for precipitation

Tables 5 and 6 provide values averaged over Canada and over each province and territory for the 50th (median), 25th, and 75th percentiles of precipitation change for the three future periods illustrated in Figures 9 and 10. These tables also provide the corresponding projections under RCP2.6 and RCP8.5. As the figures clearly show, projected precipitation changes are not constant across a province or territory, but the tables are provided to inform province- or territory-wide assessment activities that may need area-averaged information.

Table 5: Summary information for projected winter precipitation change (in % change from the 1986-2005 baseline period), averaged over December-February for three future periods and three RCPs. The table shows values for the 50th percentile (a), 25th percentile (b), and 75th percentile (c).

RCP2.6
(a) 50th Percentile 2016-2035 2046-2065 2081-2100
Canada 5.4 9.1 9.1
Alberta 3.1 6.7 7.9
British Columbia 1.6 6.4 7.5
Manitoba 5.3 10.7 9.0
New Brunswick 4.8 6.7 3.5
Newfoundland and Labrador 3.2 5.8 6.3
Northwest Territories 7.1 11.9 10.9
Nova Scotia 2.8 2.5 3.0
Nunavut 7.2 13.6 15.4
Ontario 5.3 8.9 7.9
Prince Edward Island 3.0 5.2 5.3
Quebec 6.2 10.2 9.9
Saskatchewan 4.1 8.1 8.4
Yukon 7.3 9.7 11.0
RCP4.5
(a) 50th Percentile 2016-2035 2046-2065 2081-2100
Canada 5.9 12.9 17.6
Alberta 5.9 10.8 11.6
British Columbia 4.3 8.7 10.8
Manitoba 6.4 12.7 16.5
New Brunswick 5.2 8.9 11.9
Newfoundland and Labrador 5.0 9.5 14.5
Northwest Territories 6.8 15.4 19.5
Nova Scotia 2.8 5.4 8.7
Nunavut 8.8 19.0 28.7
Ontario 5.7 12.9 16.4
Prince Edward Island 5.3 7.5 10.8
Quebec 6.5 14.9 21.2
Saskatchewan 5.7 11.0 11.7
Yukon 5.9 14.1 14.7
RCP8.5
(a) 50th Percentile 2016-2035 2046-2065 2081-2100
Canada 7.2 18.1 37.8
Alberta 4.3 10.8 20.4
British Columbia 3.4 10.0 17.9
Manitoba 6.6 16.2 28.9
New Brunswick 5.8 11.4 19.0
Newfoundland and Labrador 4.8 12.0 23.2
Northwest Territories 8.2 19.7 42.9
Nova Scotia 3.7 8.3 13.9
Nunavut 10.9 29.1 66.4
Ontario 6.6 17.5 31.8
Prince Edward Island 5.3 10.7 17.1
Quebec 7.5 20.7 39.8
Saskatchewan 5.3 12.1 22.2
Yukon 5.9 15.8 29.9
RCP2.6
(b) 25th Percentile 2016-2035 2046-2065 2081-2100
Canada -0.5 1.9 2.0
Alberta -1.8 2.5 2.0
British Columbia -2.6 1.5 1.7
Manitoba 0.4 3.5 3.6
New Brunswick 1.1 1.0 0.9
Newfoundland and Labrador -2.4 -0.1 1.0
Northwest Territories 1.2 5.2 5.1
Nova Scotia -0.1 -2.2 0.3
Nunavut 1.5 4.5 6.0
Ontario 0.2 3.2 2.7
Prince Edward Island 1.2 -2.3 2.1
Quebec 0.4 2.8 3.5
Saskatchewan -1.0 2.1 2.9
Yukon -0.8 3.4 4.7
RCP4.5
(b) 25th Percentile 2016-2035 2046-2065 2081-2100
Canada 0.1 6.2 9.1
Alberta 0.6 5.7 5.7
British Columbia -0.6 2.7 3.4
Manitoba 0.6 7.8 9.2
New Brunswick -0.7 3.6 7.0
Newfoundland and Labrador -0.3 2.9 6.5
Northwest Territories 2.0 9.7 12.4
Nova Scotia -1.8 2.9 4.1
Nunavut 2.2 12.0 17.1
Ontario 1.8 7.6 10.0
Prince Edward Island -1.2 2.5 5.1
Quebec 0.9 7.5 13.2
Saskatchewan 0.1 5.6 6.7
Yukon 0.7 8.5 8.4
RCP8.5
(b) 25th Percentile 2016-2035 2046-2065 2081-2100
Canada 0.4 10.5 24.8
Alberta 0.2 5.2 12.2
British Columbia -1.4 2.6 9.0
Manitoba 1.2 10.0 17.0
New Brunswick -0.2 6.0 13.1
Newfoundland and Labrador 0.6 6.5 14.2
Northwest Territories 2.5 12.9 29.7
Nova Scotia 1.7 3.0 7.7
Nunavut 2.2 19.7 47.5
Ontario 1.6 10.9 21.6
Prince Edward Island 1.4 3.4 8.3
Quebec 1.7 14.7 29.3
Saskatchewan 0.4 6.2 13.1
Yukon 1.0 9.7 18.9
RCP2.6
(c) 75th Percentile 2016-2035 2046-2065 2081-2100
Canada 12.4 17.0 17.3
Alberta 9.9 13.1 12.6
British Columbia 7.6 12.7 14.0
Manitoba 10.6 17.0 15.3
New Brunswick 10.1 12.4 9.9
Newfoundland and Labrador 8.1 11.8 12.9
Northwest Territories 13.0 18.8 18.3
Nova Scotia 6.2 7.0 7.8
Nunavut 16.8 24.4 26.0
Ontario 10.8 14.9 13.4
Prince Edward Island 8.7 8.8 8.0
Quebec 11.6 17.2 16.9
Saskatchewan 8.1 14.1 12.7
Yukon 12.3 15.3 17.8
RCP4.5
(c) 75th Percentile 2016-2035 2046-2065 2081-2100
Canada 12.1 20.2 26.4
Alberta 10.8 15.2 17.6
British Columbia 9.5 14.4 17.4
Manitoba 12.2 18.7 24.5
New Brunswick 10.1 15.2 19.1
Newfoundland and Labrador 11.7 16.1 20.8
Northwest Territories 11.9 22.6 27.3
Nova Scotia 6.1 9.3 14.4
Nunavut 15.7 28.7 40.4
Ontario 11.2 18.2 23.5
Prince Edward Island 8.1 11.3 15.1
Quebec 12.2 21.6 28.7
Saskatchewan 9.9 16.7 17.1
Yukon 10.7 19.3 21.2
RCP8.5
(c) 75th Percentile 2016-2035 2046-2065 2081-2100
Canada 13.9 26.7 52.8
Alberta 8.7 17.9 28.8
British Columbia 8.4 17.8 27.1
Manitoba 12.3 23.6 41.8
New Brunswick 11.3 17.3 28.6
Newfoundland and Labrador 10.6 20.7 34.8
Northwest Territories 13.5 27.9 55.1
Nova Scotia 6.7 12.5 21.1
Nunavut 18.7 39.8 89.8
Ontario 12.1 23.9 41.7
Prince Edward Island 9.3 13.8 22.1
Quebec 13.9 29.5 52.3
Saskatchewan 10.6 18.7 30.6
Yukon 12.4 23.2 43.2

Table 6: Summary information for projected summer precipitation change (in % change from the 1986-2005 baseline period), averaged over June-August for three future periods and three RCPs. The table shows values for the 50th percentile (a), 25th percentile (b), and 75th percentile (c).

RCP2.6
(a) 50th Percentile 2016-2035 2046-2065 2081-2100
Canada 2.8 5.0 5.2
Alberta 3.3 4.4 5.9
British Columbia 1.3 3.4 3.7
Manitoba 0.2 2.2 2.9
New Brunswick 2.8 1.1 3.9
Newfoundland and Labrador 3.5 4.8 4.3
Northwest Territories 4.5 7.4 6.8
Nova Scotia 2.8 2.2 3.6
Nunavut 4.6 6.2 5.9
Ontario 0.5 2.6 1.2
Prince Edward Island 0.6 1.9 2.7
Quebec 2.5 4.1 4.2
Saskatchewan 1.9 2.7 4.4
Yukon 5.0 7.4 6.8
RCP4.5
(a) 50th Percentile 2016-2035 2046-2065 2081-2100
Canada 2.2 5.1 6.5
Alberta 2.3 2.3 4.1
British Columbia 0.2 0.7 0.9
Manitoba 0.6 2.0 2.2
New Brunswick 3.0 3.9 4.5
Newfoundland and Labrador 3.3 5.1 5.9
Northwest Territories 3.5 7.8 10.1
Nova Scotia 3.0 4.4 6.4
Nunavut 3.1 8.1 10.8
Ontario 0.4 2.7 3.3
Prince Edward Island 3.1 3.9 6.1
Quebec 2.6 5.2 5.1
Saskatchewan 0.6 1.2 1.4
Yukon 4.5 8.9 12.0
RCP8.5
(a) 50th Percentile 2016-2035 2046-2065 2081-2100
Canada 3.0 6.4 10.6
Alberta 1.7 2.8 2.4
British Columbia 0.7 2.1 0.1
Manitoba 0.8 1.7 -1.1
New Brunswick 3.2 4.2 7.8
Newfoundland and Labrador 3.5 6.6 11.5
Northwest Territories 4.5 11.1 17.8
Nova Scotia 1.7 4.3 6.8
Nunavut 5.2 11.3 22.9
Ontario 0.7 1.3 -0.5
Prince Edward Island 2.5 5.4 6.3
Quebec 3.0 5.6 6.5
Saskatchewan 0.5 1.7 -1.9
Yukon 4.5 13.2 21.1
RCP2.6
(b) 25th Percentile 2016-2035 2046-2065 2081-2100
Canada -3.2 -1.5 -1.4
Alberta -2.9 -1.4 -0.3
British Columbia -4.0 -2.8 -2.3
Manitoba -4.2 -2.5 -2.7
New Brunswick -3.4 -2.7 -0.6
Newfoundland and Labrador -0.2 0.8 0.3
Northwest Territories -1.0 1.8 0.4
Nova Scotia -3.9 -3.8 -2.9
Nunavut -2.4 -0.8 -0.9
Ontario -3.8 -2.6 -3.4
Prince Edward Island -3.7 -4.3 -1.4
Quebec -2.1 0.2 -0.2
Saskatchewan -3.1 -2.4 -1.1
Yukon 0.9 2.8 2.0
RCP4.5
(b) 25th Percentile 2016-2035 2046-2065 2081-2100
Canada -3.4 -1.7 -0.4
Alberta -3.5 -4.2 -2.9
British Columbia -4.7 -5.0 -5.4
Manitoba -5.4 -4.7 -4.5
New Brunswick -2.2 0.2 -0.7
Newfoundland and Labrador -0.6 0.7 2.2
Northwest Territories -1.6 1.8 3.8
Nova Scotia -2.2 -3.6 -1.3
Nunavut -2.7 0.6 3.7
Ontario -4.5 -3.0 -2.0
Prince Edward Island -3.1 -1.4 -2.1
Quebec -1.3 0.6 0.5
Saskatchewan -5.3 -4.6 -4.4
Yukon 1.1 4.0 6.2
RCP8.5
(b) 25th Percentile 2016-2035 2046-2065 2081-2100
Canada -2.9 -0.6 0.7
Alberta -5.1 -3.4 -7.8
British Columbia -5.1 -4.0 -8.3
Manitoba -4.1 -4.5 -9.1
New Brunswick -2.3 -1.3 -1.1
Newfoundland and Labrador -1.7 2.2 5.3
Northwest Territories -1.7 4.4 8.9
Nova Scotia -4.5 -2.2 -3.0
Nunavut -1.0 4.0 12.6
Ontario -3.5 -3.8 -8.2
Prince Edward Island -6.0 -2.4 -1.8
Quebec -1.6 0.8 0.0
Saskatchewan -4.9 -4.8 -9.2
Yukon 0.2 7.4 12.0
RCP2.6
(c) 75th Percentile 2016-2035 2046-2065 2081-2100
Canada 8.9 12.0 12.4
Alberta 9.1 10.0 12.0
British Columbia 7.0 9.2 9.9
Manitoba 4.5 7.7 8.4
New Brunswick 5.8 8.6 10.1
Newfoundland and Labrador 7.3 9.8 8.8
Northwest Territories 10.0 13.5 13.1
Nova Scotia 7.3 8.0 9.2
Nunavut 10.8 13.4 13.8
Ontario 4.6 7.9 7.6
Prince Edward Island 8.1 7.7 6.6
Quebec 7.2 8.6 9.5
Saskatchewan 7.7 8.7 10.1
Yukon 9.7 12.6 12.9
RCP4.5
(c) 75th Percentile 2016-2035 2046-2065 2081-2100
Canada 8.5 12.6 14.5
Alberta 8.4 8.4 10.9
British Columbia 5.4 6.3 7.8
Manitoba 5.2 7.5 8.7
New Brunswick 8.2 9.1 11.3
Newfoundland and Labrador 7.8 10.7 10.5
Northwest Territories 9.4 15.1 17.4
Nova Scotia 7.6 9.2 9.8
Nunavut 9.5 17.1 19.1
Ontario 5.3 7.4 8.3
Prince Edward Island 9.4 12.2 9.8
Quebec 6.9 10.5 10.9
Saskatchewan 5.7 7.4 9.1
Yukon 8.7 14.7 17.6
RCP8.5
(c) 75th Percentile 2016-2035 2046-2065 2081-2100
Canada 9.3 14.2 21.3
Alberta 8.0 9.2 12.9
British Columbia 7.1 8.1 8.0
Manitoba 6.6 7.4 7.4
New Brunswick 6.6 9.9 14.8
Newfoundland and Labrador 7.9 11.2 18.6
Northwest Territories 10.9 18.2 27.5
Nova Scotia 5.8 8.5 15.3
Nunavut 11.2 20.1 34.2
Ontario 5.1 6.2 5.9
Prince Edward Island 5.9 9.4 15.6
Quebec 7.5 10.8 14.1
Saskatchewan 6.3 9.0 8.4
Yukon 9.8 18.6 30.8

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