Home / Romulus / 9 January 2019
Romulus
United States · 9 January 2019
← 8 January 201910 January 2019 →
Average
-2.9°C
low -5.4° · high 1.5°
Rainfall
0.3mm
dry day
Wind
6.3m/s
daily average
Humidity
61.9%
daily average
Cloud
91%
cover
Pressure
1017hPa
daily average
The temperature ranged from -5.4°C around 23:00 to 1.5°C around 00:00. 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
53th percentile
Low temperature
49th percentile
Rainfall
52th percentile
Wind
93th 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 -2.9°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 | 1.5 | -4.6 | 0.01 | 5.1 | WNW | 64 | 1011 |
| 01:00 | 06:00 | 1.4 | -4.6 | 0.01 | 4.9 | WNW | 64 | 1012 |
| 02:00 | 07:00 | 1.2 | -5 | 0.04 | 5 | WNW | 63 | 1012 |
| 03:00 | 08:00 | 0.3 | -6 | 0.04 | 5.2 | WNW | 62 | 1013 |
| 04:00 | 09:00 | -0.5 | -7.1 | 0.03 | 5.5 | WNW | 62 | 1013 |
| 05:00 | 10:00 | -1.7 | -8.3 | 0.02 | 5.3 | WNW | 65 | 1014 |
| 06:00 | 11:00 | -2 | -8.9 | 0.03 | 5.7 | WNW | 66 | 1014 |
| 07:00 | 12:00 | -2.4 | -9.5 | 0.02 | 6 | WNW | 66 | 1015 |
| 08:00 | 13:00 | -2.8 | -9.8 | 0.01 | 5.9 | WNW | 66 | 1016 |
| 09:00 | 14:00 | -3.2 | -10.9 | 0.01 | 6.7 | WNW | 63 | 1017 |
| 10:00 | 15:00 | -3.7 | -11.6 | 0.01 | 7 | NW | 62 | 1018 |
| 11:00 | 16:00 | -4 | -11.9 | 0.01 | 7 | NW | 63 | 1018 |
| 12:00 | 17:00 | -4 | -12 | 0.01 | 7 | NW | 60 | 1018 |
| 13:00 | 18:00 | -4 | -12.1 | 0 | 7.1 | NW | 59 | 1018 |
| 14:00 | 19:00 | -4 | -11.9 | 0 | 7 | NW | 59 | 1018 |
| 15:00 | 20:00 | -3.9 | -11.8 | 0 | 6.8 | NW | 57 | 1019 |
| 16:00 | 21:00 | -4.1 | -11.9 | 0 | 6.7 | NW | 58 | 1019 |
| 17:00 | 22:00 | -4.3 | -11.7 | 0 | 6.2 | WNW | 57 | 1021 |
| 18:00 | 23:00 | -4.5 | -12.5 | 0 | 6.9 | NW | 58 | 1021 |
| 19:00 | 00:00 | -4.6 | -12.8 | 0 | 7.2 | NW | 59 | 1021 |
| 20:00 | 01:00 | -4.9 | -12.8 | 0 | 6.9 | NW | 61 | 1021 |
| 21:00 | 02:00 | -5.1 | -12.6 | 0 | 6.2 | WNW | 63 | 1022 |
| 22:00 | 03:00 | -5.3 | -13.2 | 0 | 6.8 | WNW | 64 | 1023 |
| 23:00 | 04:00 | -5.4 | -13.3 | 0 | 6.7 | WNW | 64 | 1023 |
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 9 January 2019 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 (2026-07-18). 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 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Romulus, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 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 2026-07-18},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.