Home / Romulus / 17 January 2020
Romulus
United States · 17 January 2020
← 16 January 202018 January 2020 →
Average
-4.8°C
low -6.9°C · high -3.4°C
Rainfall
0.5mm
dry day
Wind
3.6m/s
daily average
Humidity
63%
daily average
Cloud
89%
cover
Pressure
1042hPa
daily average
The temperature ranged from -6.9°C around 08:00 to -3.4°C around 22:00. Rain was recorded for one hour, around 23:00 (0.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
26th percentile
Low temperature
46th percentile
Rainfall
58th percentile
Wind
44th 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 -3.3°C, versus -4.8°C on this specific day.
Sun & daylight
Sunrise
07:59
Sunset
17:28
Day length
9h 29m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Detroit.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | -4.8°C | -11.6°C | 0 | 5 | NNW | 55 | 1042 |
| 01:00 | 06:00 | -4.9°C | -11.7°C | 0 | 5.1 | NNW | 54 | 1042 |
| 02:00 | 07:00 | -5.3°C | -11.8°C | 0 | 4.7 | N | 54 | 1043 |
| 03:00 | 08:00 | -5.9°C | -12.2°C | 0 | 4.4 | NNW | 56 | 1044 |
| 04:00 | 09:00 | -6.6°C | -12.6°C | 0 | 3.9 | NNW | 57 | 1045 |
| 05:00 | 10:00 | -6.5°C | -11.6°C | 0 | 2.5 | N | 59 | 1045 |
| 06:00 | 11:00 | -6.9°C | -11.7°C | 0 | 2.2 | NNE | 61 | 1045 |
| 07:00 | 12:00 | -6.9°C | -11.9°C | 0 | 2.4 | NE | 61 | 1045 |
| 08:00 | 13:00 | -6.9°C | -11.5°C | 0 | 1.9 | ENE | 60 | 1046 |
| 09:00 | 14:00 | -6.3°C | -10.8°C | 0 | 1.8 | ENE | 61 | 1046 |
| 10:00 | 15:00 | -5.2°C | -9.7°C | 0 | 1.8 | E | 58 | 1046 |
| 11:00 | 16:00 | -4.7°C | -9.5°C | 0 | 2.5 | E | 59 | 1045 |
| 12:00 | 17:00 | -3.8°C | -8.8°C | 0 | 2.7 | ESE | 59 | 1044 |
| 13:00 | 18:00 | -3.5°C | -8.7°C | 0 | 3 | ESE | 60 | 1043 |
| 14:00 | 19:00 | -3.6°C | -8.9°C | 0 | 3.3 | SE | 61 | 1042 |
| 15:00 | 20:00 | -3.6°C | -9.5°C | 0 | 4 | ESE | 62 | 1041 |
| 16:00 | 21:00 | -3.9°C | -10°C | 0 | 4.4 | SE | 65 | 1040 |
| 17:00 | 22:00 | -4.3°C | -10°C | 0 | 3.9 | SE | 70 | 1040 |
| 18:00 | 23:00 | -4.2°C | -10°C | 0 | 4 | SE | 71 | 1039 |
| 19:00 | 00:00 | -3.9°C | -9.6°C | 0 | 3.9 | SE | 72 | 1039 |
| 20:00 | 01:00 | -3.7°C | -9.4°C | 0 | 4.1 | SE | 73 | 1038 |
| 21:00 | 02:00 | -3.5°C | -9.5°C | 0.02 | 4.5 | ESE | 73 | 1037 |
| 22:00 | 03:00 | -3.4°C | -9.6°C | 0.08 | 4.9 | ESE | 74 | 1036 |
| 23:00 | 04:00 | -3.5°C | -9.8°C | 0.43 | 5.1 | ESE | 77 | 1034 |
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 17 January 2020 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 (2026-07-20). 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 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Romulus, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 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 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.