Climate & Energy Design Data

Updated 2026-08-31

Climate Design Data: Townsville, Australia

How to research climate design data for a specific site in Townsville — 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 AU dump](https://download.geonames.org/export/dump/AU.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2146142). Regulatory starting point: [Australian Building Codes Board and the applicable state or territory authority](https://ncc.abcb.gov.au/). 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=146.80569&latitude=-19.26639&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 Townsville reference point reports an annual mean 2 m temperature of 24.1 °C and relative humidity of 70.5%. The highest monthly maximum is 42.1 °C in November, while the lowest monthly minimum is 5.9 °C in July; 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 2.40 mm/day and annual 10 m wind speed is 4.32 m/s. For climate design data, use the 42.1 °C and 5.9 °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 Townsville?

Townsville is represented here at approximately -19.2664, 146.8057 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 Townsville 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.

Townsville NASA POWER monthly climate screening table

MonthMean °CMonthly max °CMonthly min °CRH %Precipitation mm/dayWind at 10 m m/s
January27.4540.5718.7174.476.924.48
February27.0539.7718.2078.658.344.24
March26.0336.5917.9478.704.224.32
April24.5134.4112.5674.901.614.37
May22.1632.969.0071.370.894.14
June20.0531.466.8071.650.784.08
July19.4231.405.9169.310.714.00
August20.4632.506.8165.960.393.86
September23.0235.6710.8264.510.374.21
October25.0738.4713.8964.440.664.74
November26.5642.0617.5364.941.414.83
December27.7840.7919.4368.042.804.62

Month-by-month climate interpretation

  • January: mean temperature 27.45 °C is 3.34 °C above the annual mean; the monthly max–min span is 21.86 °C. Relative humidity is 74.47% (3.94 points above annual), while corrected precipitation at 6.92 mm/day is 4.52 mm/day wetter than the annual daily rate.
  • February: mean temperature 27.05 °C is 2.94 °C above the annual mean; the monthly max–min span is 21.57 °C. Relative humidity is 78.65% (8.12 points above annual), while corrected precipitation at 8.34 mm/day is 5.94 mm/day wetter than the annual daily rate.
  • March: mean temperature 26.03 °C is 1.92 °C above the annual mean; the monthly max–min span is 18.65 °C. Relative humidity is 78.70% (8.17 points above annual), while corrected precipitation at 4.22 mm/day is 1.82 mm/day wetter than the annual daily rate.
  • April: mean temperature 24.51 °C is 0.40 °C above the annual mean; the monthly max–min span is 21.85 °C. Relative humidity is 74.90% (4.37 points above annual), while corrected precipitation at 1.61 mm/day is 0.79 mm/day drier than the annual daily rate.
  • May: mean temperature 22.16 °C is 1.95 °C below the annual mean; the monthly max–min span is 23.96 °C. Relative humidity is 71.37% (0.84 points above annual), while corrected precipitation at 0.89 mm/day is 1.51 mm/day drier than the annual daily rate.
  • June: mean temperature 20.05 °C is 4.06 °C below the annual mean; the monthly max–min span is 24.66 °C. Relative humidity is 71.65% (1.12 points above annual), while corrected precipitation at 0.78 mm/day is 1.62 mm/day drier than the annual daily rate.
  • July: mean temperature 19.42 °C is 4.69 °C below the annual mean; the monthly max–min span is 25.49 °C. Relative humidity is 69.31% (1.22 points below annual), while corrected precipitation at 0.71 mm/day is 1.69 mm/day drier than the annual daily rate.
  • August: mean temperature 20.46 °C is 3.65 °C below the annual mean; the monthly max–min span is 25.69 °C. Relative humidity is 65.96% (4.57 points below annual), while corrected precipitation at 0.39 mm/day is 2.01 mm/day drier than the annual daily rate.
  • September: mean temperature 23.02 °C is 1.09 °C below the annual mean; the monthly max–min span is 24.85 °C. Relative humidity is 64.51% (6.02 points below annual), while corrected precipitation at 0.37 mm/day is 2.03 mm/day drier than the annual daily rate.
  • October: mean temperature 25.07 °C is 0.96 °C above the annual mean; the monthly max–min span is 24.58 °C. Relative humidity is 64.44% (6.09 points below annual), while corrected precipitation at 0.66 mm/day is 1.74 mm/day drier than the annual daily rate.
  • November: mean temperature 26.56 °C is 2.45 °C above the annual mean; the monthly max–min span is 24.53 °C. Relative humidity is 64.94% (5.59 points below annual), while corrected precipitation at 1.41 mm/day is 0.99 mm/day drier than the annual daily rate.
  • December: mean temperature 27.78 °C is 3.67 °C above the annual mean; the monthly max–min span is 21.36 °C. Relative humidity is 68.04% (2.49 points below annual), while corrected precipitation at 2.80 mm/day is 0.40 mm/day wetter than the annual daily rate.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 2146142. It 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 AU dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2146142). Regulatory starting point: Australian Building Codes Board and the applicable state or territory 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 Townsville?

For the Townsville reference point, the 2001–2020 NASA POWER climatology reports 24.1 °C annual mean temperature, 70.5% relative humidity and 2.40 mm/day corrected precipitation. The monthly maximum peaks at 42.1 °C in November.

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

No. The Townsville response is gridded monthly climatology; its lowest monthly minimum of 5.9 °C in July 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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