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Notices:

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Canadian Climate Normals 1971-2000

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.

NOTE!! 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.

SAINT JOHN A *
NEW BRUNSWICK
Latitude: 45°19'05.000" N Longitude: 65°53'08.050" W Elevation: 108.80 m
Climate ID: 8104900 WMO ID: 71609 TC ID: YSJ

* This station meets WMO standards for temperature and precipitation.

Normals from to  
January-June January-December+Year July-December
Temperature:Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Daily Average (°C)-8.1 -7.3 -2.5 3.6 9.4 14 17.1 16.9 12.8 7.3 2 -4.7 5 A
Standard Deviation2.1 2.2 1.7 1.2 1.2 0.7 0.7 0.8 1 1.2 1.4 2.7 0.7 A
Daily Maximum (°C)-2.7 -1.9 2.3 8.3 14.8 19.5 22.4 22.2 17.7 11.9 6 0.3 10.1 A
Daily Minimum (°C)-13.6 -12.7 -7.3 -1.2 4 8.4 11.7 11.6 7.7 2.7 -2.1 -9.7 -0.1 A
Extreme Maximum (°C)14 13.3 17.5 22.8 33 32 32.8 34.4 31 25.6 21.7 16.1    
Date (yyyy/dd)1979/03 1994/21 1999/28 1976/20 1992/22 1983/22 1963/26 1976/22 1999/03 1947/18 1956/01 1973/17  
Extreme Minimum (°C)-31.7 -36.7 -30 -16.7 -7.8 -2.2 1.1 -0.6 -6.7 -10.6 -16.9 -34.4    
Date (yyyy/dd)1971/18 1948/11 1948/14 1969/04 1947/15 1949/01 1948/08 1947/28 1947/29 1974/22 1996/30 1989/30  
Precipitation:
Rainfall (mm)78.2 48.8 71.7 81.7 115.9 100.9 101.5 89.6 117.4 122.6 121.6 98.2 1147.9 A
Snowfall (cm)66.5 50 47.4 22.2 1.4 0 0 0 0 2.2 12.5 54.7 256.9 A
Precipitation (mm)139.4 94 117.9 104.2 117.5 100.9 101.5 89.6 117.4 124.8 133.7 149.4 1390.3 A
Average Snow Depth (cm)17 18 13 1 0 0 0 0 0 0 1 9 5 A
Median Snow Depth (cm)16 16 11 0 0 0 0 0 0 0 0 7 4 A
Snow Depth at Month-end (cm)15 19 3 0 0 0 0 0 0 0 2 14 4 A
Extreme Daily Rainfall (mm)83 82.3 74 125.5 66.5 108.2 79.4 125.2 83.2 85.3 154.4 92.4    
Date (yyyy/dd)1978/26 1947/05 1980/18 1962/01 1973/21 1985/01 1990/25 1970/02 1999/22 1963/29 1975/13 1981/02  
Extreme Daily Snowfall (cm)42.4 34.8 40.1 26.2 10.2 0 0 0 0 19.8 28.4 58.2    
Date (yyyy/dd)1975/07 1978/07 1963/06 1958/02 1967/08 1947/01 1947/01 1947/01 1947/01 1974/20 1989/21 1960/12  
Extreme Daily Precipitation (mm)83 95 74 125.5 66.5 108.2 79.4 125.2 83.2 85.3 154.4 105.7    
Date (yyyy/dd)1978/26 1947/05 1980/18 1962/01 1973/21 1985/01 1990/25 1970/02 1999/22 1963/29 1975/13 1967/04  
Extreme Snow Depth (cm)93 102 97 56 8 0 0 0 0 18 39 84    
Date (yyyy/dd)1981/24 1963/25 1963/19 2001/03 1967/08 1955/01 1955/01 1955/01 1955/01 1974/21 1989/28 1970/28  
Days with Maximum Temperature:
<= 0 °C19.1 17.1 9 0.70 0 0 0 0 0 0 3.4 13.8 63 A
> 0 °C11.9 11.2 22 29.3 31 30 31 31 30 31 26.6 17.2 302.2 A
> 10 °C0.50 0.23 1.7 10.3 26.7 29.8 31 31 29.6 21.4 6.8 1.7 190.8 A
> 20 °C0 0 0 0.20 4.1 13.6 23.2 22.8 6.8 0.37 0 0 71 A
> 30 °C0 0 0 0 0.03 0.27 0.13 0.33 0.03 0 0 0 0.79 A
> 35 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Minimum Temperature:
> 0 °C1.4 1.3 3 9.4 26.8 29.8 31 31 29.2 21.2 9.8 2.6 196.7 A
<= 2 °C30.6 28 30.1 25.9 9.3 0.80 0 0 2.4 15.1 23.7 30.1 196 A
<= 0 °C29.6 27 28 20.6 4.2 0.17 0 0 0.77 9.8 20.2 28.4 168.6 A
< -2 °C28.4 25.5 23.8 11.4 0.90 0 0 0 0.17 4.5 15.6 25.9 136.2 A
< -10 °C21.3 18.7 9.8 0.27 0 0 0 0 0 0.03 1.8 14.4 66.3 A
< -20 °C6.6 4.7 1.1 0 0 0 0 0 0 0 0 2.8 15.2 A
< - 30 °C0.13 0.03 0 0 0 0 0 0 0 0 0 0.07 0.23 A
Days with Rainfall:
>= 0.2 mm6.9 5.3 8.2 10.6 13.5 13.2 12 10.9 11.4 12.1 12 9 125.1 A
>= 5 mm3.7 2.3 4.1 4.6 6.4 5.7 5 4.4 5.7 6.1 6.3 4.8 59.1 A
>= 10 mm2.6 1.7 2.4 2.7 4 3.2 3.1 2.9 3.8 4.2 3.9 3.1 37.7 A
>= 25 mm0.83 0.57 0.73 0.83 1.2 0.83 1.1 0.90 1.6 1.5 1.2 1.2 12.5 A
Days With Snowfall:
>= 0.2 cm13 10.7 9.8 5.7 0.57 0 0 0 0 0.73 4 11.1 55.7 A
>= 5 cm4.1 3.6 3 1.7 0.13 0 0 0 0 0.13 0.77 3.8 17.2 A
>= 10 cm2.1 1.5 1.6 0.57 0 0 0 0 0 0.07 0.30 1.6 7.8 A
>= 25 cm0.30 0.13 0.07 0 0 0 0 0 0 0 0.03 0.20 0.73 A
Days with Precipitation:
>= 0.2 mm16.4 13 14.8 14 13.6 13.2 12 10.9 11.4 12.3 14.1 16.6 162.3 A
>= 5 mm7 5.3 6.7 6.3 6.5 5.7 5 4.4 5.7 6.3 7 8.4 74.3 A
>= 10 mm4.8 3 4 3.4 4 3.2 3.1 2.9 3.8 4.3 4.4 4.9 45.8 A
>= 25 mm1.3 0.90 1 0.90 1.2 0.83 1.1 0.90 1.6 1.5 1.3 1.4 13.9 A
Days with Snow Depth:
>= 1 cm24.6 24 22.8 6.1 0.07 0 0 0 0 0.23 3.4 16.3 97.5 A
>= 5 cm21 20.6 18.1 3.5 0 0 0 0 0 0.13 2 11.9 77.3 A
>= 10 cm17.2 16.5 13.9 1.2 0 0 0 0 0 0.07 0.83 8.4 58.1 A
>= 20 cm10.5 9.5 7.9 0.03 0 0 0 0 0 0 0.37 4.6 32.9 A
Wind:
Speed (km/h)18.2 17.7 18.6 17.7 16 14.3 12.8 12.1 14.1 15.9 17.4 17.8 16.1 A
Most Frequent DirectionNW NW NW N S S S S S S NW NW S A
Maximum Hourly Speed (km/h)111 100 80 85 64 61 76 68 97 89 89 83    
Date (yyyy/dd)1978/09 1976/02 1964/05 1963/05 1961/26 1958/08 1958/31 1971/16 1960/13 1963/29 1963/30 2000/18  
Maximum Gust Speed (km/h)143 146 137 121 132 129 105 96 130 138 126 145    
Date (yyyy/dd)1978/09 1976/02 1971/04 1975/03 1967/08 1965/29 1971/07 1991/20 1961/15 1963/29 1963/30 1962/30  
Direction of Maximum GustS S E E E N W S S N S E S  
Days with Winds >= 52 km/h3.2 2.7 2.6 1.9 1.4 0.6 0.3 0.4 0.9 1.6 2.5 3.4 21.3 A
Days with Winds >= 63 km/h1.1 0.8 0.7 0.6 0.3 0 0.1 0.2 0.2 0.3 0.7 1.2 6.1 A
Degree Days:
Above 24 °C0 0 0 0 0 0 0 0.1 0 0 0 0 0.2 A
Above 18 °C0 0 0 0 0.2 4.1 15.4 15.7 1.6 0 0 0 36.9 A
Above 15 °C0 0 0 0 2.1 21.7 70.1 68.1 12.8 0.6 0 0 175.4 A
Above 10 °C0 0 0 1.3 31.7 123.3 219.4 214.2 93.1 16.9 2.3 0 702.1 A
Above 5 °C0.9 0.4 2.8 21.4 140.2 270 374.4 369.2 232.6 89.3 23.1 2.8 1527.1 A
Above 0 °C10.5 10 30.3 114.4 292 420 529.4 524.2 382.5 226.9 91.5 23.4 2654.8 A
Below 0 °C262.9 216 108.3 7.8 0 0 0 0 0 0.5 32.4 169.8 797.6 A
Below 5 °C408.4 347.7 235.8 64.8 3.2 0 0 0 0.2 17.9 114.1 304.2 1496.2 A
Below 10 °C562.4 488.7 388 194.6 49.7 3.3 0 0 10.7 100.5 243.2 456.4 2497.6 A
Below 15 °C717.4 630 543 343.4 175.2 51.7 5.7 8.9 80.3 239.2 391 611.4 3797.2 A
Below 18 °C810.4 714.8 636 433.4 266.3 124.1 44 49.5 159.1 331.6 481 704.4 4754.5 A
Bright Sunshine:
Total Hours123 129.6 147.8 160.9 201.5 211.1 223.1 221.6 177.6 147.2 105.7 101 1950.1 C
Days with measureable22.7 21.8 22.8 22.8 25.8 25.5 26.1 26.3 25.1 24.4 21.2 20.4 284.9 C
% of possible daylight hours43.3 44.3 40.1 39.8 43.7 45.1 47.1 50.7 47.1 43.2 36.8 37 43.2 C
Extreme Daily9.2 10.5 11.3 13.6 14.8 15.2 15 13.9 12.5 10.4 9.6 8.7   C
Date (yyyy/dd)1980/29 1988/28 1981/25 1991/28 1976/28 1978/26 1975/01 1972/05 1975/01 1979/19 1977/05 1986/01  
Humidex:
Extreme Humidex15.9 13.3 17.8 23.8 35.4 37.4 40.3 40.3 36.5 28.3 23.8 18    
Date (yyyy/dd)1979/03 1976/02 1998/31 1987/19 1959/28 1957/24 1963/26 1975/02 1969/01 1971/02 1956/01 1973/17  
Days with Humidex >= 300 0 0 0 0.1 1.2 3.9 4 0.6 0 0 0 9.8 A
Days with Humidex >= 350 0 0 0 0 0.1 0.3 0.4 0 0 0 0 0.8 A
Days with Humidex >= 400 0 0 0 0 0 0 0 0 0 0 0 0 A
Wind Chill:
Extreme Wind Chill-44.8 -44.4 -39.5 -26.1 -13.9 -3 2.8 0.2 -5.7 -12.9 -25.9 -41.9    
Date (yyyy/dd)1982/18 1967/13 1989/07 1995/05 1974/02 1975/09 1969/07 1965/31 1980/29 1974/22 1978/27 1989/30  
Days with Wind Chill < -2015.9 13.1 5 0.1 0 0 0 0 0 0 0.4 9.3 43.8 A
Days with Wind Chill < -304.6 2.7 0.5 0 0 0 0 0 0 0 0 1.8 9.5 A
Days with Wind Chill < -400.3 0 0 0 0 0 0 0 0 0 0 0.1 0.4 A
Humidity:
Average Vapour Pressure (kPa)0.3 0.3 0.4 0.6 0.9 1.2 1.5 1.5 1.2 0.9 0.6 0.4 0.8 A
Average Relative Humidity - 0600LST (%)75.7 75.5 79.1 83 86.6 89.6 91.5 92.5 91.6 87.2 82.8 79.9 84.6 A
Average Relative Humidity - 1500LST (%)65.6 61.9 63 60.7 60.4 63.2 65 64.2 65.4 65.3 68.2 69.8 64.4 A
Pressure:
Average Station Pressure (kPa)100 100 100 99.9 100.1 100 100.1 100.3 100.3 100.4 100.2 100.1 100.1 A
Average Sea Level Pressure (kPa)101.4 101.4 101.3 101.3 101.4 101.3 101.4 101.6 101.6 101.7 101.5 101.4 101.4 A
Visibility (hours with):
< 1 km23.9 21.4 29.8 31.5 48.5 84 113.9 106.8 60.8 31.7 19.1 19.2 590.3 C
1 to 9 km138.5 125.8 146.1 134.5 118.7 125 128.4 117.3 103.5 111.1 125.6 148.8 1523.3 C
> 9 km581.6 530.8 568.1 554.1 576.9 511 501.7 519.9 555.8 601.2 575.3 576 6652.4 C
Cloud Amount (hours with):
0 to 2 tenths237.9 224.9 218.5 162.7 153.5 133.8 139 170.4 190.9 203.1 176.2 210.9 2221.8 C
3 to 7 tenths122.4 108.8 115.7 122.5 156.1 168.9 183.8 180 166.9 142.4 121.7 118.8 1708 C
8 to 10 tenths383.8 344.4 409.8 434.8 434.4 417.3 421.1 393.6 362.2 398.6 422 414.3 4836.3 C


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Date Modified: 2013-02-04

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