Home / Romulus / 12 January 2023
Romulus
United States · 12 January 2023
← 11 January 202313 January 2023 →
Average
4.6°C
low 1.7° · high 6.7°
Rainfall
1.4mm
rain recorded
Wind
4m/s
daily average
Humidity
87.5%
daily average
Cloud
100%
cover
Pressure
1010hPa
daily average
The temperature ranged from 1.7°C around 23:00 to 6.7°C around 04:00. Rain was recorded across 5 hours, from around 15:00 to 19:00 (1.4mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
90th percentile
Low temperature
96th percentile
Rainfall
74th percentile
Wind
54th 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 -3.2°C, versus 4.6°C on this specific day.
Sun & daylight
Sunrise
08:01
Sunset
17:23
Day length
9h 22m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Detroit.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 5.1 | 2.5 | 0.02 | 1.7 | SSE | 90 | 1010 |
| 01:00 | 06:00 | 5.4 | 2.8 | 0.01 | 1.8 | SSW | 92 | 1010 |
| 02:00 | 07:00 | 5.8 | 2.9 | 0.02 | 2.4 | SW | 93 | 1010 |
| 03:00 | 08:00 | 6.2 | 3.2 | 0.03 | 2.7 | WSW | 93 | 1010 |
| 04:00 | 09:00 | 6.7 | 4.1 | 0.02 | 2.3 | W | 93 | 1010 |
| 05:00 | 10:00 | 6.5 | 4.4 | 0.01 | 1.5 | WNW | 92 | 1010 |
| 06:00 | 11:00 | 6.4 | 4.4 | 0.01 | 1.3 | NW | 92 | 1010 |
| 07:00 | 12:00 | 6.2 | 3.9 | 0 | 1.7 | NNW | 91 | 1011 |
| 08:00 | 13:00 | 6.1 | 2.9 | 0.01 | 2.8 | N | 90 | 1011 |
| 09:00 | 14:00 | 5.7 | 2.2 | 0 | 3.1 | N | 88 | 1011 |
| 10:00 | 15:00 | 5.4 | 1.8 | 0 | 3.1 | NNE | 86 | 1011 |
| 11:00 | 16:00 | 5.3 | 1.4 | 0 | 3.5 | NNE | 84 | 1011 |
| 12:00 | 17:00 | 5.2 | 0.6 | 0.01 | 4.3 | NNE | 84 | 1010 |
| 13:00 | 18:00 | 4.9 | -0.3 | 0.02 | 5.2 | N | 85 | 1009 |
| 14:00 | 19:00 | 4.6 | -1 | 0.09 | 5.7 | N | 85 | 1009 |
| 15:00 | 20:00 | 4 | -1.9 | 0.18 | 5.9 | N | 86 | 1008 |
| 16:00 | 21:00 | 3.5 | -2.1 | 0.2 | 5.5 | N | 86 | 1009 |
| 17:00 | 22:00 | 3 | -2.6 | 0.24 | 5.3 | N | 86 | 1009 |
| 18:00 | 23:00 | 2.7 | -3.1 | 0.25 | 5.6 | NNW | 87 | 1010 |
| 19:00 | 00:00 | 2.5 | -3.6 | 0.17 | 6 | NNW | 87 | 1011 |
| 20:00 | 01:00 | 2.4 | -4.2 | 0.06 | 6.6 | NNW | 85 | 1011 |
| 21:00 | 02:00 | 2.2 | -4.2 | 0.02 | 6.2 | NNW | 83 | 1012 |
| 22:00 | 03:00 | 1.8 | -4.9 | 0.01 | 6.5 | NNW | 82 | 1012 |
| 23:00 | 04:00 | 1.7 | -5.1 | 0.01 | 6.5 | NNW | 80 | 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 United States
- Location
- Romulus — 42.250°, -83.500°, ERA5 grid cell center, 9.1 km from requested point
- Time zone
- America/Detroit
- What's shown here
- The hourly and daily record for 12 January 2023 specifically — not a monthly average. See the Romulus 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 Romulus, United States (42.25°N, 83.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Romulus, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Romulus, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Romulus, United States},
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.