Home / Romulus / 12 January 2017
Romulus
United States · 12 January 2017
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Average
2.5°C
low -1.1° · high 13.9°
Rainfall
16.3mm
rain recorded
Wind
3.7m/s
daily average
Humidity
87.3%
daily average
Cloud
94%
cover
Pressure
1016hPa
daily average
The temperature ranged from -1.1°C around 23:00 to 13.9°C around 01:00. Rain was recorded across 13 hours, from around 00:00 to 14:00 (16.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
98th percentile
Low temperature
79th percentile
Rainfall
96th percentile
Wind
47th 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 -2.7°C, versus 2.5°C on this specific day.
Sun & daylight
Sunrise
08:01
Sunset
17:23
Day length
9h 23m
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 | 13.5 | 8.5 | 2.27 | 8.1 | SW | 91 | 1003 |
| 01:00 | 06:00 | 13.9 | 10.1 | 1.92 | 6.3 | WSW | 90 | 1004 |
| 02:00 | 07:00 | 11.4 | 8.6 | 1.5 | 4.3 | W | 94 | 1005 |
| 03:00 | 08:00 | 8.5 | 5.3 | 1.42 | 3.7 | NW | 92 | 1007 |
| 04:00 | 09:00 | 7.1 | 3 | 0.39 | 4.4 | NNW | 90 | 1009 |
| 05:00 | 10:00 | 3.4 | -0.3 | 0.22 | 3.1 | NNW | 95 | 1009 |
| 06:00 | 11:00 | 2.5 | -1.5 | 0.06 | 3.3 | N | 95 | 1010 |
| 07:00 | 12:00 | 1.7 | -2 | 0.02 | 2.7 | NNE | 95 | 1012 |
| 08:00 | 13:00 | 0.9 | -3.1 | 0.18 | 3 | NNE | 95 | 1012 |
| 09:00 | 14:00 | 0.2 | -4.1 | 0.61 | 3.2 | N | 94 | 1013 |
| 10:00 | 15:00 | -0.2 | -4.5 | 1.79 | 3 | NNE | 93 | 1013 |
| 11:00 | 16:00 | -0.3 | -3.5 | 3.95 | 1.4 | NNW | 93 | 1015 |
| 12:00 | 17:00 | -0.6 | -4.1 | 1.77 | 1.9 | NNW | 93 | 1014 |
| 13:00 | 18:00 | -0.1 | -5 | 0.11 | 3.9 | NW | 93 | 1016 |
| 14:00 | 19:00 | 0.7 | -3.9 | 0.13 | 3.6 | NW | 90 | 1016 |
| 15:00 | 20:00 | 0.8 | -3.9 | 0.01 | 3.6 | NW | 86 | 1017 |
| 16:00 | 21:00 | 0.9 | -4.2 | 0 | 4.1 | NW | 82 | 1019 |
| 17:00 | 22:00 | -0.4 | -5.3 | 0 | 3.5 | NW | 83 | 1021 |
| 18:00 | 23:00 | -0.5 | -5.1 | 0 | 3 | WNW | 81 | 1024 |
| 19:00 | 00:00 | -0.5 | -5.2 | 0 | 3.1 | WNW | 78 | 1025 |
| 20:00 | 01:00 | -0.6 | -5.6 | 0 | 3.6 | WNW | 77 | 1026 |
| 21:00 | 02:00 | -0.7 | -6 | 0 | 3.8 | WNW | 74 | 1027 |
| 22:00 | 03:00 | -1 | -6.4 | 0 | 3.9 | W | 72 | 1029 |
| 23:00 | 04:00 | -1.1 | -6.8 | 0 | 4.3 | WNW | 69 | 1029 |
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 2017 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.