Home / Romulus / 9 January 2025
Romulus
United States · 9 January 2025
← 8 January 202510 January 2025 →
Average
-8.8°C
low -14.2° · high -3.3°
Rainfall
0mm
dry day
Wind
2m/s
daily average
Humidity
59.8%
daily average
Cloud
18%
cover
Pressure
1026hPa
daily average
The temperature ranged from -14.2°C around 08:00 to -3.3°C around 16:00. 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
18th percentile
Low temperature
8th percentile
Rainfall
31th 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 -2.2°C, versus -8.8°C on this specific day.
Sun & daylight
Sunrise
08:02
Sunset
17:20
Day length
9h 18m
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 | -9.7 | -14.5 | 0 | 2.2 | N | 69 | 1024 |
| 01:00 | 06:00 | -10.2 | -15.1 | 0 | 2.1 | N | 70 | 1024 |
| 02:00 | 07:00 | -10.6 | -15.3 | 0 | 1.9 | NNW | 71 | 1024 |
| 03:00 | 08:00 | -11.3 | -16.3 | 0 | 2.3 | NNW | 68 | 1025 |
| 04:00 | 09:00 | -11.5 | -16.7 | 0 | 2.5 | NNW | 67 | 1026 |
| 05:00 | 10:00 | -13.3 | -18.6 | 0 | 2.6 | NNW | 67 | 1026 |
| 06:00 | 11:00 | -13.7 | -18.8 | 0 | 2.3 | NW | 67 | 1027 |
| 07:00 | 12:00 | -14.1 | -19.1 | 0 | 2.1 | NW | 67 | 1027 |
| 08:00 | 13:00 | -14.2 | -19.1 | 0 | 1.9 | NW | 67 | 1028 |
| 09:00 | 14:00 | -11.9 | -17.1 | 0 | 2.3 | NW | 60 | 1028 |
| 10:00 | 15:00 | -10.2 | -15.1 | 0 | 2 | NW | 52 | 1029 |
| 11:00 | 16:00 | -8.8 | -13.4 | 0 | 1.6 | NW | 45 | 1029 |
| 12:00 | 17:00 | -6.1 | -10.6 | 0 | 1.4 | NW | 37 | 1028 |
| 13:00 | 18:00 | -4.9 | -9.5 | 0 | 1.6 | WNW | 36 | 1027 |
| 14:00 | 19:00 | -4.1 | -8.8 | 0 | 1.7 | W | 37 | 1026 |
| 15:00 | 20:00 | -3.3 | -7.6 | 0 | 1.2 | W | 39 | 1025 |
| 16:00 | 21:00 | -3.3 | -7.6 | 0 | 1.3 | SW | 41 | 1025 |
| 17:00 | 22:00 | -6.3 | -10.2 | 0 | 1 | SW | 60 | 1025 |
| 18:00 | 23:00 | -7.1 | -11.6 | 0 | 1.7 | SSW | 61 | 1026 |
| 19:00 | 00:00 | -6.6 | -11.4 | 0 | 2.2 | SSW | 62 | 1026 |
| 20:00 | 01:00 | -6.5 | -11.2 | 0 | 2.1 | S | 66 | 1026 |
| 21:00 | 02:00 | -8.2 | -12.7 | 0 | 1.9 | SE | 75 | 1024 |
| 22:00 | 03:00 | -7.6 | -12.6 | 0 | 2.6 | S | 73 | 1024 |
| 23:00 | 04:00 | -7.3 | -13.1 | 0 | 3.8 | SSW | 74 | 1025 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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 9 January 2025 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.