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Weather Prediction Accuracy

Below are three day Brandon, Manitoba forecasts for each day this year in addition to what the actual daytime high temperature ended up measuring. In brackets are the difference between predicted high and actual high. The intention of this feature is not to undermine Environment Canada. We respect how difficult it is to predict the weather from day-to-day, and are simply providing a means by which to understand and respect that difficulty.

DateDaytime high1 day prediction2 day prediction3 day prediction
February 26-7.8-7 (0.8)-6 (1.8)-7 (0.8)
February 26-7.8-7 (0.8)-6 (1.8)-7 (0.8)
February 25-8.8-6 (2.8)-5 (3.8)-6 (2.8)
February 25-8.8-6 (2.8)-5 (3.8)-6 (2.8)
February 24-5.6-7 (1.4)-5 (0.6)-8 (2.4)
February 212.32 (0.3)4 (1.7)5 (2.7)
February 201.60 (1.6)6 (4.4)8 (6.4)
February 190.43 (2.6)4 (3.6)4 (3.6)
February 183.13 (0.1)5 (1.9)7 (3.9)
February 183.13 (0.1)5 (1.9)7 (3.9)
February 173.85 (1.2)7 (3.2)6 (2.2)
February 162.34 (1.7)5 (2.7)7 (4.7)
February 132.6-1 (3.6)0 (2.6)-1 (3.6)
February 132.6-1 (3.6)0 (2.6)-1 (3.6)
February 12-3.9-2 (1.9)-3 (0.9)-3 (0.9)
February 12-3.9-2 (1.9)-3 (0.9)-3 (0.9)
February 11-1.8-4 (2.2)-5 (3.2)-4 (2.2)
February 10-7.2-1 (6.2)-3 (4.2)-1 (6.2)
February 10-7.2-1 (6.2)-3 (4.2)-1 (6.2)
February 09-13.7-13 (0.7)-11 (2.7)-9 (4.7)
February 08-18.5-18 (0.5)-17 (1.5)-18 (0.5)
February 08-18.5-18 (0.5)-17 (1.5)-18 (0.5)
February 07-18.5-18 (0.5)-17 (1.5)-16 (2.5)
February 06-16.2-17 (0.8)-15 (1.2)-14 (2.2)
February 06-16.2-17 (0.8)-15 (1.2)-14 (2.2)
February 05-15.9-15 (0.9)-15 (0.9)-14 (1.9)
February 04-9.3-11 (1.7)-12 (2.7)-13 (3.7)
February 03-13.1-12 (1.1)-12 (1.1)-11 (2.1)
February 02-13.6-14 (0.4)-13 (0.6)-13 (0.6)
February 01-13.9-13 (0.9)-14 (0.1)-13 (0.9)
January 31-3.3-5 (1.7)-7 (3.7)-6 (2.7)
January 29-4.90 (4.9)-2 (2.9)-1 (3.9)
January 29-4.90 (4.9)-2 (2.9)-1 (3.9)
January 28-1.4-1 (0.4)-2 (0.6)-5 (3.6)
January 27-3.3-3 (0.3)-5 (1.7)-3 (0.3)
January 27-3.3-3 (0.3)-5 (1.7)-3 (0.3)
January 26-8.5-7 (1.5)-6 (2.5)-8 (0.5)
January 25-6.9-5 (1.9)-4 (2.9)-5 (1.9)
January 210.61 (0.4)2 (1.4)2 (1.4)
January 20-3.9-1 (2.9)1 (4.9)3 (6.9)
January 19-0.84 (4.8)6 (6.8)5 (5.8)
January 180.4-4 (4.4)5 (4.6)6 (5.6)
January 16-5.4-5 (0.4)-5 (0.4)-6 (0.6)
January 15-9-4 (5.0)-7 (2.0)-9 (0.0)
January 14-14.8-10 (4.8)-10 (4.8)-8 (6.8)
January 14-14.8-10 (4.8)-10 (4.8)-8 (6.8)
January 14-14.8-10 (4.8)-10 (4.8)-8 (6.8)
January 13-19-16 (3.0)-12 (7.0)-13 (6.0)
January 12-24.40 (24.4)-23 (1.4)-22 (2.4)
January 11-25.8-21 (4.8)-20 (5.8)-20 (5.8)
January 11-25.8-21 (4.8)-20 (5.8)-20 (5.8)
January 10-17.3-18 (0.7)-17 (0.3)-18 (0.7)
January 09-19.8-17 (2.8)-19 (0.8)-18 (1.8)
January 08-16.8-19 (2.2)-18 (1.2)-18 (1.2)
January 08-16.8-19 (2.2)-18 (1.2)-18 (1.2)
January 07-22.3-11 (11.3)-17 (5.3)-20 (2.3)
January 06-16.3-20 (3.7)-20 (3.7)-20 (3.7)
January 05-20.4-20 (0.4)-22 (1.6)-17 (3.4)
January 05-20.4-20 (0.4)-22 (1.6)-17 (3.4)
January 05-20.4-20 (0.4)-22 (1.6)-17 (3.4)
January 04-23.8-21 (2.8)-20 (3.8)-20 (3.8)
January 04-23.8-21 (2.8)-20 (3.8)-20 (3.8)
January 03-20-19 (1.0)-19 (1.0)-18 (2.0)
January 02-16.2-13 (3.2)-15 (1.2)-16 (0.2)
January 02-16.2-13 (3.2)-15 (1.2)-16 (0.2)
January 01-11.3-12 (0.7)-12 (0.7)-11 (0.3)

 
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