Climate & Energy Design Data

Updated 2026-08-31

Climate Design Data: Ivory Park, South Africa

How to research climate design data for a specific site in Ivory Park — the controlling authority, source documents, and checks to run before you rely on a number.

Last updated August 31, 2026 · Location data from the [GeoNames ZA dump](https://download.geonames.org/export/dump/ZA.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 11204237). Regulatory starting point: [South African Bureau of Standards and the local authority](https://www.sabs.co.za/). Figures are illustrative — verify against the current locally adopted edition for the site. Climate screening data from the [NASA POWER Climatology API documentation](https://power.larc.nasa.gov/docs/services/api/temporal/climatology/) and [exact point response](https://power.larc.nasa.gov/api/temporal/climatology/point?parameters=T2M%2CT2M_MAX%2CT2M_MIN%2CRH2M%2CPRECTOTCORR%2CWS10M&community=SB&longitude=28.1971&latitude=-25.9957&format=JSON), 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.

Direct answer

NASA POWER's 2001–2020 climatology at the Ivory Park reference point reports an annual mean 2 m temperature of 17.1 °C and relative humidity of 55.2%. The highest monthly maximum is 38.8 °C in January, while the lowest monthly minimum is -4.8 °C in June; 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 1.76 mm/day and annual 10 m wind speed is 3.48 m/s. For climate design data, use the 38.8 °C and -4.8 °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 Ivory Park?

Ivory Park is represented here at approximately -25.9957, 28.1971 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.
InputProject-specific evidenceQA question
Sitesurveyed coordinates, elevation and horizonDoes the point represent the building?
Weather/solar methodnamed dataset, algorithm, period and time basisAre station, time zone and units explicit?
Design scenariocurrent and future scenario agreed by the teamIs an average being mistaken for an extreme?
Complianceadopted local document and editionWas applicability confirmed with the authority?

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 Ivory Park site remain authoritative.

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.

Ivory Park NASA POWER monthly climate screening table

MonthMean °CMonthly max °CMonthly min °CRH %Precipitation mm/dayWind at 10 m m/s
January21.6438.756.9665.133.953.04
February21.3835.138.7964.062.902.89
March19.8633.836.1263.042.362.87
April16.6731.361.0462.211.442.97
May13.3229.31-4.2054.120.513.14
June10.0325.41-4.7554.650.233.50
July9.8925.81-4.0049.190.093.53
August13.0829.79-4.2043.610.234.11
September17.3433.39-1.4738.950.534.26
October19.9136.692.9248.191.834.16
November20.7236.894.9756.512.973.88
December21.4536.526.5163.344.093.36

Ivory Park ranked monthly climate fingerprint

  • Ivory Park mean temperature, highest to lowest: January 21.64 °C, December 21.45 °C, February 21.38 °C, November 20.72 °C, October 19.91 °C, March 19.86 °C, September 17.34 °C, April 16.67 °C, May 13.32 °C, August 13.08 °C, June 10.03 °C, July 9.89 °C.
  • Ivory Park monthly maximum, highest to lowest: January 38.75 °C, November 36.89 °C, October 36.69 °C, December 36.52 °C, February 35.13 °C, March 33.83 °C, September 33.39 °C, April 31.36 °C, August 29.79 °C, May 29.31 °C, July 25.81 °C, June 25.41 °C.
  • Ivory Park monthly minimum, highest to lowest: February 8.79 °C, January 6.96 °C, December 6.51 °C, March 6.12 °C, November 4.97 °C, October 2.92 °C, April 1.04 °C, September -1.47 °C, July -4.00 °C, August -4.20 °C, May -4.20 °C, June -4.75 °C.
  • Ivory Park relative humidity, highest to lowest: January 65.13 %, February 64.06 %, December 63.34 %, March 63.04 %, April 62.21 %, November 56.51 %, June 54.65 %, May 54.12 %, July 49.19 %, October 48.19 %, August 43.61 %, September 38.95 %.
  • Ivory Park corrected precipitation, highest to lowest: December 4.09 mm/day, January 3.95 mm/day, November 2.97 mm/day, February 2.90 mm/day, March 2.36 mm/day, October 1.83 mm/day, April 1.44 mm/day, September 0.53 mm/day, May 0.51 mm/day, August 0.23 mm/day, June 0.23 mm/day, July 0.09 mm/day.
  • Ivory Park 10 m wind speed, highest to lowest: September 4.26 m/s, October 4.16 m/s, August 4.11 m/s, November 3.88 m/s, July 3.53 m/s, June 3.50 m/s, December 3.36 m/s, May 3.14 m/s, January 3.04 m/s, April 2.97 m/s, February 2.89 m/s, March 2.87 m/s.

Ivory Park month-to-month screening ledger

  • Ivory Park January: mean 21.64 °C, change from December +0.19 °C; max–min span 31.79 °C; humidity 65.13%, change +1.79 points; precipitation 3.95 mm/day; wind 3.04 m/s.
  • Ivory Park February: mean 21.38 °C, change from January -0.26 °C; max–min span 26.34 °C; humidity 64.06%, change -1.07 points; precipitation 2.90 mm/day; wind 2.89 m/s.
  • Ivory Park March: mean 19.86 °C, change from February -1.52 °C; max–min span 27.71 °C; humidity 63.04%, change -1.02 points; precipitation 2.36 mm/day; wind 2.87 m/s.
  • Ivory Park April: mean 16.67 °C, change from March -3.19 °C; max–min span 30.32 °C; humidity 62.21%, change -0.83 points; precipitation 1.44 mm/day; wind 2.97 m/s.
  • Ivory Park May: mean 13.32 °C, change from April -3.35 °C; max–min span 33.51 °C; humidity 54.12%, change -8.09 points; precipitation 0.51 mm/day; wind 3.14 m/s.
  • Ivory Park June: mean 10.03 °C, change from May -3.29 °C; max–min span 30.16 °C; humidity 54.65%, change +0.53 points; precipitation 0.23 mm/day; wind 3.50 m/s.
  • Ivory Park July: mean 9.89 °C, change from June -0.14 °C; max–min span 29.81 °C; humidity 49.19%, change -5.46 points; precipitation 0.09 mm/day; wind 3.53 m/s.
  • Ivory Park August: mean 13.08 °C, change from July +3.19 °C; max–min span 33.99 °C; humidity 43.61%, change -5.58 points; precipitation 0.23 mm/day; wind 4.11 m/s.
  • Ivory Park September: mean 17.34 °C, change from August +4.26 °C; max–min span 34.86 °C; humidity 38.95%, change -4.66 points; precipitation 0.53 mm/day; wind 4.26 m/s.
  • Ivory Park October: mean 19.91 °C, change from September +2.57 °C; max–min span 33.77 °C; humidity 48.19%, change +9.24 points; precipitation 1.83 mm/day; wind 4.16 m/s.
  • Ivory Park November: mean 20.72 °C, change from October +0.81 °C; max–min span 31.92 °C; humidity 56.51%, change +8.32 points; precipitation 2.97 mm/day; wind 3.88 m/s.
  • Ivory Park December: mean 21.45 °C, change from November +0.73 °C; max–min span 30.01 °C; humidity 63.34%, change +6.83 points; precipitation 4.09 mm/day; wind 3.36 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 11204237. The ranked fingerprint and transition ledger preserve Ivory Park'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.

Sources and method

Location data from the GeoNames ZA dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 11204237). Regulatory starting point: South African Bureau of Standards and the local 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.

Frequently asked questions

What does NASA POWER climatology show for Ivory Park?

For the Ivory Park reference point, the 2001–2020 NASA POWER climatology reports 17.1 °C annual mean temperature, 55.2% relative humidity and 1.76 mm/day corrected precipitation. The monthly maximum peaks at 38.8 °C in January.

Can the Ivory Park climatology replace project design temperatures or an hourly weather file?

No. The Ivory Park response is gridded monthly climatology; its lowest monthly minimum of -4.8 °C in June is not a code percentile or observed site extreme. Verify elevation, local exposure, the required weather file or design-condition source and the current adopted code.

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