Home / Glenunga / 31 December 2017
Glenunga
Australia · 31 December 2017
← 30 December 20171 January 2018 →
Average
16.7°C
low 11.1° · high 22.3°
Rainfall
0mm
dry day
Wind
2.1m/s
daily average
Humidity
68.8%
daily average
Cloud
16%
cover
Pressure
1013hPa
daily average
The temperature ranged from 11.1°C around 03:00 to 22.3°C around 15:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
24th percentile
Low temperature
16th percentile
Rainfall
73th percentile
Wind
9th percentile
A percentile of 100 means this was the hottest/wettest/windiest of the comparable days on file; 50 is right in the middle. This window's average temperature was 20.3°C, versus 16.7°C on this specific day.
Sun & daylight
Sunrise
06:03
Sunset
20:32
Day length
14h 29m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — Australia/Adelaide.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 13:30 | 13.3 | 11.8 | 0 | 2 | SE | 78 | 1015 |
| 01:00 | 14:30 | 11.7 | 10.4 | 0 | 1.5 | SE | 83 | 1014 |
| 02:00 | 15:30 | 11.4 | 10.3 | 0 | 1.3 | ESE | 85 | 1014 |
| 03:00 | 16:30 | 11.1 | 10.3 | 0 | 0.9 | ESE | 88 | 1013 |
| 04:00 | 17:30 | 11.3 | 10.8 | 0 | 0.6 | ESE | 88 | 1013 |
| 05:00 | 18:30 | 11.4 | 10.9 | 0 | 0.5 | E | 88 | 1013 |
| 06:00 | 19:30 | 12 | 11.7 | 0 | 0.5 | ENE | 86 | 1014 |
| 07:00 | 20:30 | 12.1 | 11.8 | 0 | 0.4 | ENE | 84 | 1014 |
| 08:00 | 21:30 | 16 | 15.7 | 0 | 0.7 | SE | 70 | 1014 |
| 09:00 | 22:30 | 16.5 | 16 | 0 | 0.9 | WSW | 67 | 1014 |
| 10:00 | 23:30 | 18.9 | 18.2 | 0 | 1.3 | W | 58 | 1014 |
| 11:00 | 00:30 | 20.2 | 18.7 | 0 | 2.1 | W | 52 | 1013 |
| 12:00 | 01:30 | 20.6 | 18.5 | 0 | 3 | W | 51 | 1013 |
| 13:00 | 02:30 | 22.3 | 20 | 0 | 3.5 | W | 47 | 1013 |
| 14:00 | 03:30 | 22.1 | 19.7 | 0 | 3.6 | WSW | 47 | 1012 |
| 15:00 | 04:30 | 22.3 | 20 | 0 | 3.6 | WSW | 48 | 1011 |
| 16:00 | 05:30 | 21 | 18.6 | 0 | 4 | WSW | 53 | 1011 |
| 17:00 | 06:30 | 21 | 18.6 | 0 | 4.1 | SW | 54 | 1010 |
| 18:00 | 07:30 | 20.7 | 18.5 | 0 | 3.8 | SW | 55 | 1011 |
| 19:00 | 08:30 | 20.7 | 18.8 | 0 | 3.4 | SW | 56 | 1011 |
| 20:00 | 09:30 | 17.3 | 16.1 | 0 | 2.5 | SW | 71 | 1011 |
| 21:00 | 10:30 | 16.9 | 16.1 | 0 | 2.2 | SSW | 75 | 1011 |
| 22:00 | 11:30 | 15.1 | 14.4 | 0 | 2 | S | 84 | 1012 |
| 23:00 | 12:30 | 14.9 | 14.4 | 0 | 1.7 | S | 84 | 1012 |
Nearby cities
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Data source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for Australia
- Location
- Glenunga — -35.000°, 138.750°, ERA5 grid cell center, 11.6 km from requested point
- Time zone
- Australia/Adelaide
- What's shown here
- The hourly and daily record for 31 December 2017 specifically — not a monthly average. See the Glenunga climate overview for typical conditions.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-17). Historical climate data for Glenunga, Australia (-35.00°S, 138.75°E), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Glenunga, Australia [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Glenunga, Australia." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Glenunga, Australia},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.