Climate Design Data: Rolleston, New Zealand

Direct answer

NASA POWER's 2001–2020 climatology at the Rolleston reference point reports an annual mean 2 m temperature of 11.6 °C and relative humidity of 78.0%. The highest monthly maximum is 37.3 °C in February, while the lowest monthly minimum is -5.4 °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 2.31 mm/day and annual 10 m wind speed is 4.21 m/s. For climate design data, use the 37.3 °C and -5.4 °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 Rolleston?

Rolleston is represented here at approximately -43.5833, 172.3833 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 Rolleston 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.

Rolleston NASA POWER monthly climate screening table

Rolleston ranked monthly climate fingerprint

• Rolleston mean temperature, highest to lowest: January 17.51 °C, February 17.14 °C, December 15.82 °C, March 15.11 °C, November 13.25 °C, April 11.93 °C, October 10.78 °C, May 9.16 °C, September 8.91 °C, August 7.07 °C, June 6.58 °C, July 5.86 °C.
• Rolleston monthly maximum, highest to lowest: February 37.27 °C, January 35.25 °C, December 33.56 °C, March 32.61 °C, November 30.19 °C, April 26.53 °C, October 25.43 °C, May 24.38 °C, September 22.45 °C, August 21.48 °C, June 19.18 °C, July 18.72 °C.
• Rolleston monthly minimum, highest to lowest: January 5.58 °C, February 5.42 °C, March 4.44 °C, December 2.66 °C, April 1.39 °C, November 0.54 °C, May -1.32 °C, October -1.46 °C, August -2.01 °C, September -2.15 °C, July -2.82 °C, June -5.44 °C.
• Rolleston relative humidity, highest to lowest: July 88.02 %, June 87.77 %, August 86.70 %, May 84.86 %, September 81.70 %, April 78.81 %, October 78.17 %, November 73.16 %, March 72.83 %, December 69.50 %, February 67.92 %, January 66.09 %.
• Rolleston corrected precipitation, highest to lowest: June 2.68 mm/day, April 2.55 mm/day, May 2.54 mm/day, October 2.51 mm/day, December 2.49 mm/day, July 2.34 mm/day, November 2.28 mm/day, August 2.27 mm/day, January 2.15 mm/day, February 2.07 mm/day, March 1.96 mm/day, September 1.91 mm/day.
• Rolleston 10 m wind speed, highest to lowest: January 4.66 m/s, December 4.58 m/s, November 4.50 m/s, October 4.45 m/s, February 4.35 m/s, September 4.32 m/s, March 4.16 m/s, May 3.94 m/s, June 3.93 m/s, August 3.91 m/s, April 3.88 m/s, July 3.84 m/s.

Rolleston month-to-month screening ledger

• Rolleston January: mean 17.51 °C, change from December +1.69 °C; max–min span 29.67 °C; humidity 66.09%, change -3.41 points; precipitation 2.15 mm/day; wind 4.66 m/s.
• Rolleston February: mean 17.14 °C, change from January -0.37 °C; max–min span 31.85 °C; humidity 67.92%, change +1.83 points; precipitation 2.07 mm/day; wind 4.35 m/s.
• Rolleston March: mean 15.11 °C, change from February -2.03 °C; max–min span 28.17 °C; humidity 72.83%, change +4.91 points; precipitation 1.96 mm/day; wind 4.16 m/s.
• Rolleston April: mean 11.93 °C, change from March -3.18 °C; max–min span 25.14 °C; humidity 78.81%, change +5.98 points; precipitation 2.55 mm/day; wind 3.88 m/s.
• Rolleston May: mean 9.16 °C, change from April -2.77 °C; max–min span 25.70 °C; humidity 84.86%, change +6.05 points; precipitation 2.54 mm/day; wind 3.94 m/s.
• Rolleston June: mean 6.58 °C, change from May -2.58 °C; max–min span 24.62 °C; humidity 87.77%, change +2.91 points; precipitation 2.68 mm/day; wind 3.93 m/s.
• Rolleston July: mean 5.86 °C, change from June -0.72 °C; max–min span 21.54 °C; humidity 88.02%, change +0.25 points; precipitation 2.34 mm/day; wind 3.84 m/s.
• Rolleston August: mean 7.07 °C, change from July +1.21 °C; max–min span 23.49 °C; humidity 86.70%, change -1.32 points; precipitation 2.27 mm/day; wind 3.91 m/s.
• Rolleston September: mean 8.91 °C, change from August +1.84 °C; max–min span 24.60 °C; humidity 81.70%, change -5.00 points; precipitation 1.91 mm/day; wind 4.32 m/s.
• Rolleston October: mean 10.78 °C, change from September +1.87 °C; max–min span 26.89 °C; humidity 78.17%, change -3.53 points; precipitation 2.51 mm/day; wind 4.45 m/s.
• Rolleston November: mean 13.25 °C, change from October +2.47 °C; max–min span 29.65 °C; humidity 73.16%, change -5.01 points; precipitation 2.28 mm/day; wind 4.50 m/s.
• Rolleston December: mean 15.82 °C, change from November +2.57 °C; max–min span 30.90 °C; humidity 69.50%, change -3.66 points; precipitation 2.49 mm/day; wind 4.58 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 2183310. The ranked fingerprint and transition ledger preserve Rolleston'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: Christchurch, New Zealand
• Climate Design Data: Ashburton, New Zealand
• Climate Design Data: Timaru, New Zealand
• Climate Design Data: Richmond, New Zealand
• All climate & energy design data guidance for New Zealand
• Sun Path: Rolleston, New Zealand

Sources and method

Location data from the GeoNames NZ dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2183310). Regulatory starting point: Ministry of Business, Innovation and Employment and the local council. 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

• building.govt.nz

• power.larc.nasa.gov

• power.larc.nasa.gov