Canadian Climate Normals 1971-2000 Station 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.

Metadata including Station Name, Province, Latitude, Longitude, Elevation, Climate ID, WMO ID, TC ID
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.

1971 to 2000 Canadian Climate Normals station data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Temperature:
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 LegendAA
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 LegendAA
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 LegendAA
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 LegendAA
Extreme Maximum (°C)14 13.3 17.5 22.8 33 32 32.8 34.4 31 25.6 21.7 16.1   Legend
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   Legend
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 LegendAA
Snowfall (cm)66.5 50 47.4 22.2 1.4 0 0 0 0 2.2 12.5 54.7 256.9 LegendAA
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 LegendAA
Average Snow Depth (cm)17 18 13 1 0 0 0 0 0 0 1 9 5 LegendAA
Median Snow Depth (cm)16 16 11 0 0 0 0 0 0 0 0 7 4 LegendAA
Snow Depth at Month-end (cm)15 19 3 0 0 0 0 0 0 0 2 14 4 LegendAA
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   Legend
Extreme Daily Snowfall (cm)42.4 34.8 40.1 26.2 10.2 0 0 0 0 19.8 28.4 58.2   Legend
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   Legend
Extreme Snow Depth (cm)93 102 97 56 8 0 0 0 0 18 39 84   Legend
Days with Maximum Temperature:
<= 0 °C19.1 17.1 9 0.70 0 0 0 0 0 0 3.4 13.8 63 LegendAA
> 0 °C11.9 11.2 22 29.3 31 30 31 31 30 31 26.6 17.2 302.2 LegendAA
> 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 LegendAA
> 20 °C0 0 0 0.20 4.1 13.6 23.2 22.8 6.8 0.37 0 0 71 LegendAA
> 30 °C0 0 0 0 0.03 0.27 0.13 0.33 0.03 0 0 0 0.79 LegendAA
> 35 °C0 0 0 0 0 0 0 0 0 0 0 0 0 LegendAA
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 LegendAA
<= 2 °C30.6 28 30.1 25.9 9.3 0.80 0 0 2.4 15.1 23.7 30.1 196 LegendAA
<= 0 °C29.6 27 28 20.6 4.2 0.17 0 0 0.77 9.8 20.2 28.4 168.6 LegendAA
< -2 °C28.4 25.5 23.8 11.4 0.90 0 0 0 0.17 4.5 15.6 25.9 136.2 LegendAA
< -10 °C21.3 18.7 9.8 0.27 0 0 0 0 0 0.03 1.8 14.4 66.3 LegendAA
< -20 °C6.6 4.7 1.1 0 0 0 0 0 0 0 0 2.8 15.2 LegendAA
< - 30 °C0.13 0.03 0 0 0 0 0 0 0 0 0 0.07 0.23 LegendAA
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 LegendAA
>= 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 LegendAA
>= 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 LegendAA
>= 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 LegendAA
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 LegendAA
>= 5 cm4.1 3.6 3 1.7 0.13 0 0 0 0 0.13 0.77 3.8 17.2 LegendAA
>= 10 cm2.1 1.5 1.6 0.57 0 0 0 0 0 0.07 0.30 1.6 7.8 LegendAA
>= 25 cm0.30 0.13 0.07 0 0 0 0 0 0 0 0.03 0.20 0.73 LegendAA
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 LegendAA
>= 5 mm7 5.3 6.7 6.3 6.5 5.7 5 4.4 5.7 6.3 7 8.4 74.3 LegendAA
>= 10 mm4.8 3 4 3.4 4 3.2 3.1 2.9 3.8 4.3 4.4 4.9 45.8 LegendAA
>= 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 LegendAA
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 LegendAA
>= 5 cm21 20.6 18.1 3.5 0 0 0 0 0 0.13 2 11.9 77.3 LegendAA
>= 10 cm17.2 16.5 13.9 1.2 0 0 0 0 0 0.07 0.83 8.4 58.1 LegendAA
>= 20 cm10.5 9.5 7.9 0.03 0 0 0 0 0 0 0.37 4.6 32.9 LegendAA
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 LegendAA
Most Frequent DirectionNW NW NW N S S S S S S NW NW S LegendAA
Maximum Hourly Speed (km/h)111 100 80 85 64 61 76 68 97 89 89 83   Legend
Maximum Gust Speed (km/h)143 146 137 121 132 129 105 96 130 138 126 145   Legend
Direction of Maximum GustS S E E E N W S S N S E S Legend
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 LegendAA
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 LegendAA
Degree Days:
Above 24 °C0 0 0 0 0 0 0 0.1 0 0 0 0 0.2 LegendAA
Above 18 °C0 0 0 0 0.2 4.1 15.4 15.7 1.6 0 0 0 36.9 LegendAA
Above 15 °C0 0 0 0 2.1 21.7 70.1 68.1 12.8 0.6 0 0 175.4 LegendAA
Above 10 °C0 0 0 1.3 31.7 123.3 219.4 214.2 93.1 16.9 2.3 0 702.1 LegendAA
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 LegendAA
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 LegendAA
Below 0 °C262.9 216 108.3 7.8 0 0 0 0 0 0.5 32.4 169.8 797.6 LegendAA
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 LegendAA
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 LegendAA
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 LegendAA
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 LegendAA
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 LegendCC
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 LegendCC
% 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 LegendCC
Extreme Daily9.2 10.5 11.3 13.6 14.8 15.2 15 13.9 12.5 10.4 9.6 8.7   LegendCC
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   Legend
Days with Humidex >= 300 0 0 0 0.1 1.2 3.9 4 0.6 0 0 0 9.8 LegendAA
Days with Humidex >= 350 0 0 0 0 0.1 0.3 0.4 0 0 0 0 0.8 LegendAA
Days with Humidex >= 400 0 0 0 0 0 0 0 0 0 0 0 0 LegendAA
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   Legend
Days with Wind Chill < -2015.9 13.1 5 0.1 0 0 0 0 0 0 0.4 9.3 43.8 LegendAA
Days with Wind Chill < -304.6 2.7 0.5 0 0 0 0 0 0 0 0 1.8 9.5 LegendAA
Days with Wind Chill < -400.3 0 0 0 0 0 0 0 0 0 0 0.1 0.4 LegendAA
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 LegendAA
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 LegendAA
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 LegendAA
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 LegendAA
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 LegendAA
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 LegendCC
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 LegendCC
> 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 LegendCC
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 LegendCC
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 LegendCC
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 LegendCC
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