The Climate Normals, Averages, and Extremes are based on Canadian climate composite stations with at least 15 years of data between 1991 and 2020. Composite stations are comprised of one or more stations operated by the Meteorological Service of Canada (MSC) or its partners, where data from individual stations are joined together to create a 30-year data series for a given location. All stations (and associated metadata) used as part of the composite are listed below, alongside the threads used to calculate each Normals/Extremes element.
HALIFAX STANFIELD (AIRPORT) NOVA SCOTIA
Composite Station Metadata All stations used in the composite for all Normals and Extremes elements are listed. Station metadata includes station name, station identifiers, coordinates, and elevation.
Composite Station Name: HALIFAX STANFIELD (AIRPORT)
Composite Station Threads Station composites are threaded from the beginning of the Normals period starting in 1991 to the end of 2020, where the predecessor site's data is used until the end of its period of record and is then joined to the current operating site to extend the time series. Threads are generated by climate element for hourly and daily data, and may vary due to differences in station history, instrumentation, meteorological data availability, data quality, or proximity. Normals and Extremes elements are grouped based on the climate element used in its calculation. For long-term extremes (LTE), the same Normals period threads are extended back in time to the earliest date of data available from the first station used in the data series. These use the LTE Start Date instead of the Start Date, that applies to normals period elements.
For additional station metadata information, refer to the above section "Composite Station Metadata" .
Composite Station Name: HALIFAX STANFIELD (AIRPORT)
Temperature
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Daily Average (°C) Standard Deviation Maximum Daily Mean (°C) (LTE) Minimum Daily Mean (°C) (LTE) DAILY MEAN TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1953/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Daily Maximum (°C) Extreme Maximum (°C) (LTE) Minimum Daily Maximum (°C) (LTE) DAILY MAXIMUM TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1953/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Daily Minimum (°C) Maximum Daily Minimum (°C) (LTE) Extreme Minimum (°C) (LTE) DAILY MINIMUM TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1953/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Precipitation
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Rainfall (mm) Extreme Daily Rainfall (mm) (LTE) DAILY TOTAL RAINFALL HALIFAX STANFIELD INT'L A 8202250 1953/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Snowfall (cm) Extreme Daily Snowfall (cm) (LTE) DAILY TOTAL SNOWFALL HALIFAX STANFIELD INT'L A 8202250 1953/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Precipitation (mm) Extreme Daily Precipitation (mm) (LTE) DAILY TOTAL PRECIPITATION HALIFAX STANFIELD INT'L A 8202250 1953/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Average Snow Depth (cm) Median Snow Depth (cm) Snow Depth at Month-end (cm) Extreme Snow Depth (cm) (LTE) SNOW ON GROUND HALIFAX STANFIELD INT'L A 8202250 1960/07/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Days With ...
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Freezing Rain or Freezing Drizzle DAY WITH FREEZING RAIN HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 DAY WITH THUNDERSTORMS HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 DAY WITH HAIL HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Fog, Ice Fog, or Freezing Fog DAY WITH FOG OR ICE FOG HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 DAY WITH SMOKE/HAZE HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Days with Maximum Temperature
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
<= 0 °C > 0 °C > 10 °C > 20 °C > 30 °C > 35 °C DAILY MAXIMUM TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Days with Minimum Temperature
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
> 0 °C <= 2 °C <= 0 °C < -2 °C < -10 °C < -20 °C < -30 °C DAILY MINIMUM TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Days with Rainfall
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
>= 0.2 mm >= 5 mm >= 10 mm >= 25 mm DAILY TOTAL RAINFALL HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Days With Snowfall
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
>= 0.2 cm >= 5 cm >= 10 cm >= 25 cm DAILY TOTAL SNOWFALL HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Days with Precipitation
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
>= 0.2 mm >= 5 mm >= 10 mm >= 25 mm DAILY TOTAL PRECIPITATION HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Days with Snow Depth
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
>= 1 cm >= 5 cm >= 10 cm >= 20 cm >= 50 cm >= 100 cm SNOW ON GROUND HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Wind
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Days with Winds >= 52 km/h DAY WITH WIND SPEED >= 28 KNOTS HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Days with Winds >= 63 km/h DAY WITH WIND SPEED >= 34 KNOTS HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Speed (km/h) Extreme Speed (km/h) (LTE) WIND SPEED HALIFAX STANFIELD INT'L A 8202250 1961/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Most Frequent Direction Direction of Extreme Speed (LTE) WIND DIRECTION HALIFAX STANFIELD INT'L A 8202250 1961/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Extreme Gust Speed (km/h) (LTE) SPEED OF EXTREME GUST HALIFAX STANFIELD INT'L A 8202250 1960/07/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Direction of Extreme Gust Speed (LTE) DIRECTION OF EXTREME GUST HALIFAX STANFIELD INT'L A 8202250 1960/07/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Degree Days
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Above 24 °C Above 18 °C Above 15 °C Above 10 °C Above 5 °C Above 0 °C Below 0 °C Below 5 °C Below 10 °C Below 15 °C Below 18 °C DAILY MEAN TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Quintiles
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Quintile 1 (Lower Bound) Quintile 1 (Upper Bound) Quintile 2 (Upper Bound) Quintile 3 (Upper Bound) Quintile 4 (Upper Bound) Quintile 5 (Upper Bound) DAILY TOTAL PRECIPITATION HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Humidex
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Days with Humidex >= 30 Days with Humidex >= 35 Days with Humidex >= 40 Extreme Humidex (LTE) DEW POINT TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1961/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 DRY BULB TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1961/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Wind Chill
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Days with Wind Chill < -20 Days with Wind Chill < -30 Days with Wind Chill < -40 Extreme Wind Chill (LTE) DRY BULB TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1961/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 WIND SPEED HALIFAX STANFIELD INT'L A 8202250 1961/01/01 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Humidity
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Average Vapour Pressure (kPa) DEW POINT TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Average Relative Humidity - 0600LST (%) Average Relative Humidity - 1500LST (%) RELATIVE HUMIDITY HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Pressure
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Average Station Pressure (kPa) STATION PRESSURE HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31 Average Sea Level Pressure (kPa) SEA LEVEL PRESSURE HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Visibility (hours with)
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
VISIBILITY HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31
Cloud Amount (hours with)
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
0 to 2 tenths 3 to 7 tenths 8 to 10 tenths TOTAL CLOUD AMOUNT HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12
Frost-Free
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Probability of last temperature in spring <= 0°C, on or after (Date) (LTE) Probability of first temperature in fall <= 0°C, on or before (Date) (LTE) Probability of frost-free period equal to or less than indicated period (Days) (LTE) DAILY MINIMUM TEMPERATURE HALIFAX STANFIELD INT'L A 8202250 1961/01/01 1991/01/01 2010/01/31
Snow-Period
1991 to 2020 Canadian Climate Normals (Composite) Station Threads
Normals/Extremes Elements Climate Element Station Name Climate ID LTE Start DateStart Date End Date
Average Date of Last Spring Snowfall Average Date of First Fall Snowfall DAILY TOTAL SNOWFALL HALIFAX STANFIELD INT'L A 8202250 1991/01/01 2012/09/12 HALIFAX STANFIELD INT'L A 8202251 2012/09/13 2020/12/31