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Notices:

As of November 19 2009, changes have been made to how Wind Chill and Humidex values are calculated. Please click here for further details. A detailed outline of these calculations can be found in the Glossary.

The Notice Inventory contains a record of all past and current Notices.

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.

HALIFAX CITADEL *
NOVA SCOTIA
Latitude:44° 39.000' NLongitude:63° 34.800' WElevation:70.10 m
Climate ID:8202220WMO ID:TC ID:

* 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) -4.4 -4.1 -0.3 4.6 9.8 15 18.6 18.9 15.2 9.6 4.5 -1.3 7.2 A
Standard Deviation 1.7 1.9 1.4 1 1.1 1 1 0.8 1.2 1.1 1.3 2.1 0.7 A
Daily Maximum (°C) -0.2 -0.1 3.5 8.4 14.1 19.4 22.9 23 19 13.1 7.9 2.6 11.2 A
Daily Minimum (°C) -8.6 -8.1 -4.2 0.8 5.5 10.5 14.2 14.8 11.4 5.9 1.2 -5.1 3.2 A
Extreme Maximum (°C) 14 16 23.5 26.1 33.3 34 33 33.9 32.2 24 20 16.7
Date (yyyy/dd) 1995/16 1994/20 1998/31 1938/28 1977/23 2001/27 2001/25 1935/19 1969/01 1983/04+ 1938/06+ 1950/30
Extreme Minimum (°C) -26.1 -25 -21 -12 -2.8 1.7 7.2 6.1 1 -5 -13.9 -23.3
Date (yyyy/dd) 1951/31 1993/07 1989/07 1995/06 1966/08+ 1973/18 1970/02 1965/30+ 1980/29 1976/29 1936/19 1933/30
Precipitation:
Rainfall (mm) 112.3 76.2 106 111.3 118.1 108 105.9 98.3 107.1 134.4 146.8 131.7 1356.1 A
Snowfall (cm) 38.4 37.7 28.4 9.8 1.2 0 0 0 0 1 6.9 28.5 151.8 A
Precipitation (mm) 150.7 113.8 134.4 121.1 119.4 108 105.9 98.3 107.1 135.4 153.7 160.2 1508 A
Snow Depth at Month-end (cm) 5 12 1 0 0 0 0 0 0 0 0 4 2 D
Extreme Daily Rainfall (mm) 88.6 59.2 82.6 73.2 72.1 65.8 93.8 118.1 96.3 81.3 99.1 95.3
Date (yyyy/dd) 1978/18 1965/25 1972/23 1984/16 1971/17 1972/10 1982/20 1971/15 1936/19 1970/04 1972/09 1975/10
Extreme Daily Snowfall (cm) 39 41.2 31 22.9 20.3 0 0 0 0 12.7 22 44
Date (yyyy/dd) 1981/17 1992/01 1993/13 1972/03 1972/09 1934/01+ 1934/01+ 1933/01+ 1933/01+ 1974/20 1989/23 1983/24
Extreme Daily Precipitation (mm) 93.7 59.2 82.6 73.2 72.1 65.8 93.8 118.1 96.3 81.3 99.1 95.3
Date (yyyy/dd) 1978/18 1965/25 1972/23 1984/16 1971/17 1972/10 1982/20 1971/15 1936/19 1970/04 1972/09 1975/10
Extreme Snow Depth (cm) 62 66 89 20 0 0 0 0 0 0 29 31
Date (yyyy/dd) 1981/18 1987/11+ 1987/17 1985/02 1964/01+ 1964/01+ 1964/01+ 1964/01+ 1964/01+ 1964/01+ 1989/27 1988/18
Days with Maximum Temperature:
<= 0 °C 15.5 14 6.9 0.4 0.03 0 0 0 0 0.03 1.7 9.9 48.5 A
> 0 °C 15.5 14.2 24.1 29.6 31 30 31 31 30 31 28.3 21.1 316.8 A
> 10 °C 0.8 0.61 2 9.6 24.8 29.7 31 31 29.9 23.8 10 2.6 195.7 A
> 20 °C 0 0 0.03 0.2 2.8 12.6 24.2 25 10.2 0.73 0 0 75.8 A
> 30 °C 0 0 0 0 0.07 0.17 0.31 0.3 0.07 0 0 0 0.92 A
> 35 °C 0 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Minimum Temperature:
> 0 °C 2.5 2 4.9 16.4 30 30 31 31 30 29.2 16.4 5.6 228.9 A
<= 2 °C 30.3 27.7 29.2 21.5 4 0.03 0 0 0.1 5.6 18.7 28.4 165.6 A
<= 0 °C 28.6 26.3 26.1 13.6 1 0 0 0 0 1.8 13.6 25.4 136.4 A
< -2 °C 25.3 23 18.5 3.5 0.1 0 0 0 0 0.2 6.3 20.2 97.1 A
< -10 °C 12.7 10 3.9 0.07 0 0 0 0 0 0 0.13 6.4 33.2 A
< -20 °C 0.55 0.21 0.03 0 0 0 0 0 0 0 0 0.13 0.92 A
< - 30 °C 0 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Rainfall:
>= 0.2 mm 8.3 5.8 9.6 12.9 14.3 12.6 11 10.3 10.9 13.3 13.6 10.8 133.4 A
>= 5 mm 5.5 3.6 5.7 5.8 6.4 5.8 4.5 4.7 5.3 6.2 6.9 6.4 66.8 A
>= 10 mm 4 2.6 3.6 3.7 4.1 3.3 3.2 3.2 3.2 4.4 4.6 4.6 44.4 A
>= 25 mm 1.4 1.1 1.3 1.2 1.1 1.3 1.4 1 1.3 1.6 1.7 1.7 16.1 A
Days With Snowfall:
>= 0.2 cm 6.1 5.6 4.1 1.9 0.17 0 0 0 0 0.17 1.1 4.9 24 A
>= 5 cm 2.9 2.7 2.5 0.87 0.07 0 0 0 0 0.07 0.43 2.1 11.6 A
>= 10 cm 1.3 1.3 1.1 0.2 0.03 0 0 0 0 0.07 0.27 0.8 5.1 A
>= 25 cm 0.1 0.2 0.03 0 0 0 0 0 0 0 0 0.13 0.46 A
Days with Precipitation:
>= 0.2 mm 13.1 10.5 12.5 14.3 14.4 12.6 11 10.3 10.9 13.5 14.3 14.2 151.6 A
>= 5 mm 7.8 6 7.9 6.7 6.5 5.8 4.5 4.7 5.3 6.2 7.3 8 76.7 A
>= 10 mm 5.5 4 4.9 4 4.2 3.3 3.2 3.2 3.2 4.4 5 5.5 50.3 A
>= 25 mm 1.7 1.4 1.3 1.2 1.1 1.3 1.4 1 1.3 1.6 1.8 1.9 16.9 A
Wind:
Maximum Hourly Speed 135 58 91 56 59 60 70 72 56 56 58 58
Date (yyyy/dd) 1980/19 1971/09 1976/17 1977/05+ 1975/06 1973/17 1975/28 1979/07 1985/28 1974/20+ 1973/02 1971/25
Degree Days:
Above 24 °C 0 0 0 0 0 0.1 0.2 0.4 0 0 0 0 0.7 A
Above 18 °C 0 0 0 0 0.7 9.5 39.9 46 9.4 0.2 0 0 105.5 A
Above 15 °C 0 0 0 0 3.3 39.3 114 123 40.4 3.1 0.1 0 323.4 A
Above 10 °C 0.1 0 0.3 2.3 38.5 151.8 266.3 276.5 157.5 38.2 5.2 0 936.7 A
Above 5 °C 1.8 1.2 5.2 32.8 153 300.1 421.3 431.5 305.9 145 42.8 5.8 1846.2 A
Above 0 °C 19.3 17.9 47.5 141.7 305.5 450.1 576.3 586.5 455.9 296.1 143.8 41.8 3082.4 A
Below 0 °C 153.4 127.5 57.6 2.7 0 0 0 0 0 0 8.3 83.5 433 A
Below 5 °C 290.9 252.1 170.2 43.7 2.5 0 0 0 0 3.9 57.2 202.5 1023.1 A
Below 10 °C 444.2 392.2 320.4 163.3 43.1 1.7 0 0 1.6 52.2 169.7 351.8 1939.9 A
Below 15 °C 599.1 533.5 475 311 162.9 39.2 2.8 1.5 34.5 172 314.6 506.8 3152.8 A
Below 18 °C 692.1 618.2 568 401 253.2 99.3 21.6 17.5 93.4 262.1 404.5 599.8 4030.8 A
Radiation:
Extreme Global (RF1) 11.1 16.3 24.6 28.3 34.1 33.9 33.2 30.7 25.5 18.4 12.8 9
Date (yyyy/dd) 2001/29 1965/28 1965/31 1965/25 2000/30 1965/20 2000/06 1965/01 2000/06 1973/01 1964/01 1990/03
 
Temperature:JanFebMarAprMayJunJul
Daily Average (°C)-4.4-4.1-0.34.69.81518.6
Standard Deviation1.71.91.411.111
Daily Maximum (°C)-0.2-0.13.58.414.119.422.9
Daily Minimum (°C)-8.6-8.1-4.20.85.510.514.2
Extreme Maximum (°C)141623.526.133.33433
Date (yyyy/dd)1995/161994/201998/311938/281977/232001/272001/25
Extreme Minimum (°C)-26.1-25-21-12-2.81.77.2
Date (yyyy/dd)1951/311993/071989/071995/061966/08+1973/181970/02
Precipitation:
Rainfall (mm)112.376.2106111.3118.1108105.9
Snowfall (cm)38.437.728.49.81.200
Precipitation (mm)150.7113.8134.4121.1119.4108105.9
Snow Depth at Month-end (cm)51210000
Extreme Daily Rainfall (mm)88.659.282.673.272.165.893.8
Date (yyyy/dd)1978/181965/251972/231984/161971/171972/101982/20
Extreme Daily Snowfall (cm)3941.23122.920.300
Date (yyyy/dd)1981/171992/011993/131972/031972/091934/01+1934/01+
Extreme Daily Precipitation (mm)93.759.282.673.272.165.893.8
Date (yyyy/dd)1978/181965/251972/231984/161971/171972/101982/20
Extreme Snow Depth (cm)62668920000
Date (yyyy/dd)1981/181987/11+1987/171985/021964/01+1964/01+1964/01+
Days with Maximum Temperature:
<= 0 °C15.5146.90.40.0300
> 0 °C15.514.224.129.6313031
> 10 °C0.80.6129.624.829.731
> 20 °C000.030.22.812.624.2
> 30 °C00000.070.170.31
> 35 °C0000000
Days with Minimum Temperature:
> 0 °C2.524.916.4303031
<= 2 °C30.327.729.221.540.030
<= 0 °C28.626.326.113.6100
< -2 °C25.32318.53.50.100
< -10 °C12.7103.90.07000
< -20 °C0.550.210.030000
< - 30 °C0000000
Days with Rainfall:
>= 0.2 mm8.35.89.612.914.312.611
>= 5 mm5.53.65.75.86.45.84.5
>= 10 mm42.63.63.74.13.33.2
>= 25 mm1.41.11.31.21.11.31.4
Days With Snowfall:
>= 0.2 cm6.15.64.11.90.1700
>= 5 cm2.92.72.50.870.0700
>= 10 cm1.31.31.10.20.0300
>= 25 cm0.10.20.030000
Days with Precipitation:
>= 0.2 mm13.110.512.514.314.412.611
>= 5 mm7.867.96.76.55.84.5
>= 10 mm5.544.944.23.33.2
>= 25 mm1.71.41.31.21.11.31.4
Wind:
Maximum Hourly Speed135589156596070
Date (yyyy/dd)1980/191971/091976/171977/05+1975/061973/171975/28
Degree Days:
Above 24 °C000000.10.2
Above 18 °C00000.79.539.9
Above 15 °C00003.339.3114
Above 10 °C0.100.32.338.5151.8266.3
Above 5 °C1.81.25.232.8153300.1421.3
Above 0 °C19.317.947.5141.7305.5450.1576.3
Below 0 °C153.4127.557.62.7000
Below 5 °C290.9252.1170.243.72.500
Below 10 °C444.2392.2320.4163.343.11.70
Below 15 °C599.1533.5475311162.939.22.8
Below 18 °C692.1618.2568401253.299.321.6
Radiation:
Extreme Global (RF1)11.116.324.628.334.133.933.2
Date (yyyy/dd)2001/291965/281965/311965/252000/301965/202000/06
 

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.

HALIFAX CITADEL *
NOVA SCOTIA
Latitude:44° 39.000' NLongitude:63° 34.800' WElevation:70.10 m
Climate ID:8202220WMO ID:TC ID:
Temperature:AugSepOctNovDecYearCode
Daily Average (°C)18.915.29.64.5-1.37.2A
Standard Deviation0.81.21.11.32.10.7A
Daily Maximum (°C)231913.17.92.611.2A
Daily Minimum (°C)14.811.45.91.2-5.13.2A
Extreme Maximum (°C)33.932.2242016.7
Date (yyyy/dd)1935/191969/011983/04+1938/06+1950/30
Extreme Minimum (°C)6.11-5-13.9-23.3
Date (yyyy/dd)1965/30+1980/291976/291936/191933/30
Precipitation:
Rainfall (mm)98.3107.1134.4146.8131.71356.1A
Snowfall (cm)0016.928.5151.8A
Precipitation (mm)98.3107.1135.4153.7160.21508A
Snow Depth at Month-end (cm)000042D
Extreme Daily Rainfall (mm)118.196.381.399.195.3
Date (yyyy/dd)1971/151936/191970/041972/091975/10
Extreme Daily Snowfall (cm)0012.72244
Date (yyyy/dd)1933/01+1933/01+1974/201989/231983/24
Extreme Daily Precipitation (mm)118.196.381.399.195.3
Date (yyyy/dd)1971/151936/191970/041972/091975/10
Extreme Snow Depth (cm)0002931
Date (yyyy/dd)1964/01+1964/01+1964/01+1989/271988/18
Days with Maximum Temperature:
<= 0 °C000.031.79.948.5A
> 0 °C31303128.321.1316.8A
> 10 °C3129.923.8102.6195.7A
> 20 °C2510.20.730075.8A
> 30 °C0.30.070000.92A
> 35 °C000000A
Days with Minimum Temperature:
> 0 °C313029.216.45.6228.9A
<= 2 °C00.15.618.728.4165.6A
<= 0 °C001.813.625.4136.4A
< -2 °C000.26.320.297.1A
< -10 °C0000.136.433.2A
< -20 °C00000.130.92A
< - 30 °C000000A
Days with Rainfall:
>= 0.2 mm10.310.913.313.610.8133.4A
>= 5 mm4.75.36.26.96.466.8A
>= 10 mm3.23.24.44.64.644.4A
>= 25 mm11.31.61.71.716.1A
Days With Snowfall:
>= 0.2 cm000.171.14.924A
>= 5 cm000.070.432.111.6A
>= 10 cm000.070.270.85.1A
>= 25 cm00000.130.46A
Days with Precipitation:
>= 0.2 mm10.310.913.514.314.2151.6A
>= 5 mm4.75.36.27.3876.7A
>= 10 mm3.23.24.455.550.3A
>= 25 mm11.31.61.81.916.9A
Wind:
Maximum Hourly Speed7256565858
Date (yyyy/dd)1979/071985/281974/20+1973/021971/25
Degree Days:
Above 24 °C0.400000.7A
Above 18 °C469.40.200105.5A
Above 15 °C12340.43.10.10323.4A
Above 10 °C276.5157.538.25.20936.7A
Above 5 °C431.5305.914542.85.81846.2A
Above 0 °C586.5455.9296.1143.841.83082.4A
Below 0 °C0008.383.5433A
Below 5 °C003.957.2202.51023.1A
Below 10 °C01.652.2169.7351.81939.9A
Below 15 °C1.534.5172314.6506.83152.8A
Below 18 °C17.593.4262.1404.5599.84030.8A
Radiation:
Extreme Global (RF1)30.725.518.412.89
Date (yyyy/dd)1965/012000/061973/011964/011990/03
Date Modified: 2009-04-30

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