Climate Design Data: Mississauga, Canada

Direct answer

NASA POWER's 2001–2020 climatology at the Mississauga reference point reports an annual mean 2 m temperature of 9.1 °C and relative humidity of 78.7%. The highest monthly maximum is 32.2 °C in July, while the lowest monthly minimum is -22.6 °C in February; these are screening statistics, not code design temperatures. The point response uses LST and the 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020); its annual corrected precipitation is 2.12 mm/day and annual 10 m wind speed is 5.36 m/s. For climate design data, use the 32.2 °C and -22.6 °C monthly extrema to screen seasonal exposure, then obtain the adopted percentile design conditions. NASA POWER is gridded climatology: verify elevation, microclimate, urban exposure, station or weather-file suitability, current code edition and the authority's required source before design use.

Prepared by Harth · Harth transformed the cited NASA POWER climatology into this screening table; project design conditions and local applicability remain unreviewed · Published 2026-08-26 · Updated 2026-08-31.

What must be verified for Mississauga?

Mississauga is represented here at approximately 43.5789, -79.6583 for discovery and workflow planning. A project address, parcel, elevation, exposure, authority, and submission date must replace that city-centre reference before design use.

How should climate design data be established?

1. Fix the surveyed site and local time basis.
2. Select an authoritative weather source or a named solar-position algorithm.
3. Record period, percentile or scenario and units.
4. Test sensitivity to elevation, exposure, urban form and horizon.
5. Save the source file, retrieval date and checker in the model record.

What are the limits of this worksheet?

This climate-design-workflow page is a project-starting worksheet, not a design value or approval. The controlling authority and qualified professionals for the Mississauga site remain authoritative.

Which related searches does this primary location record cover?

This primary route consolidates the location evidence needed for Climate Design Data, Weather File Guide, Overheating Weather Data, Building Climate Checklist. A narrower route should be released only when it adds a materially different official source, calculation, process, threshold or worked example.

Mississauga NASA POWER monthly climate screening table

Mississauga ranked monthly climate fingerprint

• Mississauga mean temperature, highest to lowest: July 21.66 °C, August 21.58 °C, September 18.25 °C, June 17.61 °C, October 11.49 °C, May 11.29 °C, April 5.52 °C, November 5.36 °C, March 0.70 °C, December 0.47 °C, January -2.69 °C, February -2.76 °C.
• Mississauga monthly maximum, highest to lowest: July 32.22 °C, August 31.89 °C, September 30.89 °C, June 30.41 °C, May 28.46 °C, October 25.27 °C, March 19.86 °C, April 18.87 °C, November 18.27 °C, December 13.03 °C, January 11.37 °C, February 11.04 °C.
• Mississauga monthly minimum, highest to lowest: August 11.24 °C, July 7.98 °C, September 4.75 °C, June 4.45 °C, May -0.45 °C, October -0.99 °C, November -7.11 °C, April -9.83 °C, December -14.05 °C, January -19.17 °C, March -21.39 °C, February -22.56 °C.
• Mississauga relative humidity, highest to lowest: January 85.54 %, February 84.06 %, December 83.85 %, November 80.74 %, March 80.55 %, April 79.05 %, May 78.30 %, October 77.91 %, June 75.52 %, September 74.03 %, August 72.44 %, July 72.13 %.
• Mississauga corrected precipitation, highest to lowest: July 2.42 mm/day, October 2.39 mm/day, April 2.38 mm/day, June 2.37 mm/day, May 2.34 mm/day, November 2.21 mm/day, September 2.19 mm/day, December 2.02 mm/day, August 1.90 mm/day, February 1.74 mm/day, January 1.74 mm/day, March 1.71 mm/day.
• Mississauga 10 m wind speed, highest to lowest: January 6.96 m/s, February 6.78 m/s, December 6.61 m/s, November 6.01 m/s, March 5.83 m/s, October 5.71 m/s, April 5.36 m/s, September 4.67 m/s, May 4.27 m/s, August 4.12 m/s, June 4.08 m/s, July 3.96 m/s.

Mississauga month-to-month screening ledger

• Mississauga January: mean -2.69 °C, change from December -3.16 °C; max–min span 30.54 °C; humidity 85.54%, change +1.69 points; precipitation 1.74 mm/day; wind 6.96 m/s.
• Mississauga February: mean -2.76 °C, change from January -0.07 °C; max–min span 33.60 °C; humidity 84.06%, change -1.48 points; precipitation 1.74 mm/day; wind 6.78 m/s.
• Mississauga March: mean 0.70 °C, change from February +3.46 °C; max–min span 41.25 °C; humidity 80.55%, change -3.51 points; precipitation 1.71 mm/day; wind 5.83 m/s.
• Mississauga April: mean 5.52 °C, change from March +4.82 °C; max–min span 28.70 °C; humidity 79.05%, change -1.50 points; precipitation 2.38 mm/day; wind 5.36 m/s.
• Mississauga May: mean 11.29 °C, change from April +5.77 °C; max–min span 28.91 °C; humidity 78.30%, change -0.75 points; precipitation 2.34 mm/day; wind 4.27 m/s.
• Mississauga June: mean 17.61 °C, change from May +6.32 °C; max–min span 25.96 °C; humidity 75.52%, change -2.78 points; precipitation 2.37 mm/day; wind 4.08 m/s.
• Mississauga July: mean 21.66 °C, change from June +4.05 °C; max–min span 24.24 °C; humidity 72.13%, change -3.39 points; precipitation 2.42 mm/day; wind 3.96 m/s.
• Mississauga August: mean 21.58 °C, change from July -0.08 °C; max–min span 20.65 °C; humidity 72.44%, change +0.31 points; precipitation 1.90 mm/day; wind 4.12 m/s.
• Mississauga September: mean 18.25 °C, change from August -3.33 °C; max–min span 26.14 °C; humidity 74.03%, change +1.59 points; precipitation 2.19 mm/day; wind 4.67 m/s.
• Mississauga October: mean 11.49 °C, change from September -6.76 °C; max–min span 26.26 °C; humidity 77.91%, change +3.88 points; precipitation 2.39 mm/day; wind 5.71 m/s.
• Mississauga November: mean 5.36 °C, change from October -6.13 °C; max–min span 25.38 °C; humidity 80.74%, change +2.83 points; precipitation 2.21 mm/day; wind 6.01 m/s.
• Mississauga December: mean 0.47 °C, change from November -4.89 °C; max–min span 27.08 °C; humidity 83.85%, change +3.11 points; precipitation 2.02 mm/day; wind 6.61 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 6075357. The ranked fingerprint and transition ledger preserve Mississauga's monthly order and successive changes for source comparison. This is a reproducible screening dataset, not an hourly weather file, forecast, code design condition or substitute for local professional review.

Where can you explore related guidance?

• Explore all climate data guidance
• Climate Design Data: Etobicoke, Canada
• Climate Design Data: Burlington, Canada
• Climate Design Data: Richmond Hill, Canada
• Climate Design Data: Markham, Canada
• All climate & energy design data guidance for Canada
• Daylight & Orientation: Mississauga, Canada
• Solar Altitude & Azimuth: Mississauga, Canada
• Solar Shading Design: Mississauga, Canada
• Sun Path: Mississauga, Canada

Sources and method

Location data from the GeoNames CA dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 6075357). Regulatory starting point: Codes Canada and the applicable provincial or territorial authority. Figures are illustrative — verify against the current locally adopted edition for the site. Climate screening data from the NASA POWER Climatology API documentation and exact point response, retrieved 2026-08-31; source period: 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020). NASA POWER values are gridded screening statistics, not code design conditions or guaranteed local observations.

Source links

• download.geonames.org

• nrc.canada.ca

• power.larc.nasa.gov

• power.larc.nasa.gov