Canadian Climate Normals 1981-2010 Station Data
Temperature and Precipitation Graph
Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
MIDLAND WATER POLLUTION CONTROL PLANT
Symbol | Description |
---|---|
Daily Maximum Temperature (°C) | |
Daily Average Temperature (°C) | |
Daily Minimum Temperature (°C) | |
Precipitation (mm) |
Normals Data
The minimum number of years used to calculate these Normals is indicated by a code for each element. A "+" beside an extreme date indicates that this date is the first occurrence of the extreme value. Values and dates in bold indicate all-time extremes for the location.
Data used in the calculation of these Normals may be subject to further quality assurance checks. This may result in minor changes to some values presented here.
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Temperature
Temperature | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | Code | |
Daily Average (°C) | -8.5 | -6.4 | -1.9 | 5.8 | 12.2 | 18.1 | 20.8 | 19.9 | 15.9 | 9.3 | 3.2 | -3.1 | 7.1 | D |
Standard Deviation | 3.5 | 2.6 | 1.8 | 1.4 | 2.0 | 1.4 | 1.1 | 1.4 | 1.6 | 1.3 | 1.7 | 2.9 | 1.5 | D |
Daily Maximum (°C) | -3.7 | -1.5 | 3.0 | 10.9 | 17.4 | 23.2 | 25.6 | 24.6 | 20.4 | 13.3 | 6.4 | 0.5 | 11.7 | D |
Daily Minimum (°C) | -13.2 | -11.4 | -6.7 | 0.7 | 7.0 | 12.9 | 15.9 | 15.2 | 11.4 | 5.3 | -0.1 | -6.7 | 2.5 | D |
Extreme Maximum (°C) | 14.0 | 15.0 | 23.5 | 30.0 | 34.0 | 35.5 | 34.5 | 34.5 | 32.5 | 30.0 | 22.0 | 18.0 | ||
Date (yyyy/dd) | 1995/ 14 | 1984/ 23 | 1998/ 30 | 2002/ 16 | 2006/ 30 | 1998/ 21 | 1993/ 05 | 2001/ 09 | 2002/ 08 | 2005/ 04 | 1978/ 05 | 1982/ 03 | ||
Extreme Minimum (°C) | -36.0 | -36.0 | -31.0 | -16.5 | -3.0 | 2.0 | 4.0 | 4.0 | 0.0 | -4.5 | -19.0 | -31.0 | ||
Date (yyyy/dd) | 2003/ 27 | 1979/ 18 | 2003/ 03 | 2003/ 07 | 1978/ 01 | 1980/ 09 | 1982/ 01 | 1986/ 28 | 1980/ 27 | 1978/ 17 | 1995/ 30 | 1980/ 25 |
Precipitation
Precipitation | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | Code | |
Rainfall (mm) | 21.5 | 20.9 | 36.1 | 59.3 | 92.8 | 89.5 | 72.7 | 77.9 | 99.1 | 88.0 | 74.8 | 27.5 | 760.0 | D |
Snowfall (cm) | 88.3 | 49.3 | 29.6 | 5.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.1 | 28.9 | 76.9 | 280.9 | D |
Precipitation (mm) | 109.8 | 69.9 | 65.7 | 65.1 | 92.8 | 89.5 | 72.7 | 77.9 | 99.1 | 90.1 | 103.6 | 104.4 | 1040.6 | D |
Extreme Daily Rainfall (mm) | 37.8 | 27.4 | 39.0 | 41.4 | 73.0 | 79.8 | 89.0 | 61.0 | 80.0 | 95.5 | 37.2 | 34.0 | ||
Date (yyyy/dd) | 1891/ 01 | 1968/ 01 | 1998/ 30 | 1995/ 21 | 2004/ 23 | 1996/ 29 | 1999/ 03 | 1981/ 14 | 1985/ 05 | 1954/ 15 | 1978/ 13 | 1889/ 24 | ||
Extreme Daily Snowfall (cm) | 35.8 | 42.0 | 34.0 | 35.6 | 9.7 | 0.0 | 0.0 | 0.0 | 0.0 | 17.0 | 45.7 | 50.0 | ||
Date (yyyy/dd) | 1965/ 28 | 1984/ 28 | 1983/ 21 | 1909/ 09 | 1976/ 03 | 1889/ 01 | 1889/ 01 | 1889/ 01 | 1889/ 01 | 1997/ 26 | 1964/ 21 | 1980/ 20 | ||
Extreme Daily Precipitation (mm) | 37.8 | 42.0 | 39.0 | 41.4 | 73.0 | 79.8 | 89.0 | 61.0 | 80.0 | 95.5 | 45.7 | 50.0 | ||
Date (yyyy/dd) | 1891/ 01 | 1984/ 28 | 1998/ 30 | 1995/ 21 | 2004/ 23 | 1996/ 29 | 1999/ 03 | 1981/ 14 | 1985/ 05 | 1954/ 15 | 1964/ 21 | 1980/ 20 | ||
Extreme Snow Depth (cm) | 65 | 79 | 98 | 28 | 0 | 0 | 0 | 0 | 0 | 9 | 60 | 79 | ||
Date (yyyy/dd) | 1981/ 06 | 1982/ 09 | 2003/ 09 | 2003/ 05 | 1983/ 01 | 1983/ 01 | 1983/ 01 | 1983/ 01 | 1983/ 01 | 1997/ 27 | 1995/ 30 | 1980/ 21 |
Days with Rainfall
Days with Rainfall | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | Code | |
>= 0.2 mm | 3.2 | 3.1 | 5.2 | 10.1 | 13.1 | 11.1 | 10.3 | 11.1 | 12.9 | 15.3 | 12.1 | 5.7 | 113.1 | D |
>= 5 mm | 1.4 | 1.4 | 2.3 | 4.4 | 6.1 | 5 | 4.2 | 5 | 5.4 | 6.3 | 5.5 | 1.9 | 48.7 | D |
>= 10 mm | 1.1 | 0.89 | 1.2 | 1.9 | 3.3 | 3.1 | 2.2 | 2.5 | 3.3 | 3 | 2.7 | 0.79 | 25.9 | D |
>= 25 mm | 0.05 | 0.11 | 0.11 | 0.22 | 0.58 | 0.65 | 0.50 | 0.55 | 0.90 | 0.30 | 0.35 | 0.05 | 4.4 | D |
Days With Snowfall
Days With Snowfall | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | Code | |
>= 0.2 cm | 14.7 | 9.4 | 6.7 | 2 | 0 | 0 | 0 | 0 | 0 | 0.70 | 5.5 | 12 | 51 | D |
>= 5 cm | 6.8 | 3.6 | 1.7 | 0.32 | 0 | 0 | 0 | 0 | 0 | 0.05 | 2.4 | 5.7 | 20.6 | D |
>= 10 cm | 3.1 | 1.5 | 0.82 | 0.11 | 0 | 0 | 0 | 0 | 0 | 0.05 | 0.90 | 2.7 | 9.1 | D |
>= 25 cm | 0.35 | 0.11 | 0.18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.10 | 0.32 | 1.1 | D |
Days with Precipitation
Days with Precipitation | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | Code | |
>= 0.2 mm | 17 | 11.7 | 11.2 | 11.6 | 13.1 | 11.1 | 10.3 | 11.1 | 12.9 | 15.6 | 16.4 | 16.8 | 158.6 | D |
>= 5 mm | 8.4 | 5.1 | 4.2 | 4.8 | 6.1 | 5 | 4.2 | 5 | 5.4 | 6.4 | 8 | 7.7 | 70 | D |
>= 10 mm | 4.2 | 2.5 | 2.1 | 2 | 3.3 | 3.1 | 2.2 | 2.5 | 3.3 | 3.1 | 3.8 | 3.5 | 35.5 | D |
>= 25 mm | 0.40 | 0.22 | 0.29 | 0.26 | 0.58 | 0.65 | 0.50 | 0.55 | 0.90 | 0.30 | 0.45 | 0.37 | 5.5 | D |
Days with Snow Depth
Days with Snow Depth | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | Code | |
>= 1 cm | 30.1 | 27 | 29.5 | 1.7 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | |
>= 5 cm | 29.5 | 25.8 | 28.5 | 1.1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | |
>= 10 cm | 27.1 | 24 | 26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | |
>= 20 cm | 20.3 | 19.5 | 19 | 0.71 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Legend
- A = WMO "3 and 5 rule" (i.e. no more than 3 consecutive and no more than 5 total missing for either temperature or precipitation)
- B = At least 25 years
- C = At least 20 years
- D = At least 15 years
Station / Element Metadata
Statistics listed below are provided as a guide to determine the validity of Normals and Extremes calculations. For example, a station with 30 years of record between 1981 and 2010 with no missing years would be a more reliable normal than a station with 15 years of record and 2 missing years. Less than 100% possible observations indicates that out of the total number of observations used, some records were missing.
MIDLAND WATER POLLUTION CONTROL PLANT
Temperature
Temperature | ||||||
---|---|---|---|---|---|---|
Begin Year | End Year | Total Number of Years | Missing Years | Total Count of Observations | % of Possible Observations | |
Daily Average (°C) | 1981 | 2006 | 20 | 7 | 7099 | 98 |
Standard Deviation | 1981 | 2006 | 20 | 7 | 7099 | 98 |
Daily Maximum (°C) | 1981 | 2006 | 20 | 7 | 7126 | 98.4 |
Daily Minimum (°C) | 1981 | 2006 | 20 | 7 | 7123 | 98.4 |
Extreme Maximum (°C) | 1974 | 2006 | 9611 | 99.6 | ||
Extreme Minimum (°C) | 1974 | 2006 | 9601 | 99.5 |
Precipitation
Precipitation | ||||||
---|---|---|---|---|---|---|
Begin Year | End Year | Total Number of Years | Missing Years | Total Count of Observations | % of Possible Observations | |
Rainfall (mm) | 1981 | 2006 | 20 | 7 | 6943 | 95.8 |
Snowfall (cm) | 1981 | 2006 | 20 | 7 | 6943 | 95.8 |
Precipitation (mm) | 1981 | 2006 | 20 | 7 | 6943 | 95.8 |
Extreme Daily Rainfall (mm) | 1889 | 2006 | 27236 | 99.9 | ||
Extreme Daily Snowfall (cm) | 1889 | 2006 | 28515 | 99.8 | ||
Extreme Daily Precipitation (mm) | 1889 | 2006 | 27174 | 99.7 | ||
Extreme Snow Depth (cm) | 1980 | 2006 | 5393 | 83.7 |
Days with Rainfall
Days with Rainfall | ||||||
---|---|---|---|---|---|---|
Begin Year | End Year | Total Number of Years | Missing Years | Total Count of Observations | % of Possible Observations | |
>= 0.2 mm | 1981 | 2006 | 20 | 7 | 7002 | 96.6 |
>= 5 mm | 1981 | 2006 | 20 | 7 | 7002 | 96.6 |
>= 10 mm | 1981 | 2006 | 20 | 7 | 7002 | 96.6 |
>= 25 mm | 1981 | 2006 | 20 | 7 | 7002 | 96.6 |
Days With Snowfall
Days With Snowfall | ||||||
---|---|---|---|---|---|---|
Begin Year | End Year | Total Number of Years | Missing Years | Total Count of Observations | % of Possible Observations | |
>= 0.2 cm | 1981 | 2006 | 20 | 7 | 7033 | 97.1 |
>= 5 cm | 1981 | 2006 | 20 | 7 | 7033 | 97.1 |
>= 10 cm | 1981 | 2006 | 20 | 7 | 7033 | 97.1 |
>= 25 cm | 1981 | 2006 | 20 | 7 | 7033 | 97.1 |
Days with Precipitation
Days with Precipitation | ||||||
---|---|---|---|---|---|---|
Begin Year | End Year | Total Number of Years | Missing Years | Total Count of Observations | % of Possible Observations | |
>= 0.2 mm | 1981 | 2006 | 20 | 7 | 6973 | 96.2 |
>= 5 mm | 1981 | 2006 | 20 | 7 | 6973 | 96.2 |
>= 10 mm | 1981 | 2006 | 20 | 7 | 6973 | 96.2 |
>= 25 mm | 1981 | 2006 | 20 | 7 | 6973 | 96.2 |
Days with Snow Depth
Days with Snow Depth | ||||||
---|---|---|---|---|---|---|
Begin Year | End Year | Total Number of Years | Missing Years | Total Count of Observations | % of Possible Observations | |
>= 1 cm | 1981 | 2006 | 17 | 22 | 3785 | 66.2 |
>= 5 cm | 1981 | 2006 | 17 | 22 | 3785 | 66.2 |
>= 10 cm | 1981 | 2006 | 17 | 22 | 3785 | 66.2 |
>= 20 cm | 1981 | 2006 | 17 | 22 | 3785 | 66.2 |
Frost-Free
Frost-Free | ||||||
---|---|---|---|---|---|---|
Begin Year | End Year | Total Number of Years | Missing Years | Total Count of Observations | % of Possible Observations | |
Average Date of Last Spring Frost | 1981 | 2006 | 9 | 16 | 9 | 34.6 |
Average Date of First Fall Frost | 1981 | 2006 | 9 | 16 | 9 | 34.6 |
Average Length of Frost-Free Period | 1981 | 2006 | 9 | 16 | 9 | 34.6 |