Roby
United States · 18 April 2018
← 17 April 201819 April 2018 →
Average
19.2°C
low 12.8° · high 23.1°
Rainfall
0mm
dry day
Wind
6.3m/s
daily average
Humidity
22.3%
daily average
Cloud
6%
cover
Pressure
1017hPa
daily average
The temperature ranged from 12.8°C around 23:00 to 23.1°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
32th percentile
Low temperature
52th percentile
Rainfall
56th percentile
Wind
66th 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 18.6°C, versus 19.2°C on this specific day.
Sun & daylight
Sunrise
07:08
Sunset
20:14
Day length
13h 6m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
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 | 23.1 | 16.8 | 0 | 8.1 | SSW | 35 | 1005 |
| 01:00 | 06:00 | 22.8 | 17.1 | 0 | 8.2 | SW | 43 | 1006 |
| 02:00 | 07:00 | 22.3 | 17 | 0 | 7.6 | SW | 45 | 1007 |
| 03:00 | 08:00 | 21.9 | 16.8 | 0 | 7 | SW | 45 | 1008 |
| 04:00 | 09:00 | 18.4 | 14.2 | 0 | 4.8 | WNW | 45 | 1010 |
| 05:00 | 10:00 | 15.4 | 7.2 | 0 | 7.8 | N | 23 | 1015 |
| 06:00 | 11:00 | 15.6 | 6.5 | 0 | 8.4 | NNE | 13 | 1017 |
| 07:00 | 12:00 | 14.7 | 7 | 0 | 7 | NNE | 20 | 1018 |
| 08:00 | 13:00 | 14 | 6.5 | 0 | 6.9 | N | 25 | 1019 |
| 09:00 | 14:00 | 14.5 | 5.9 | 0 | 8.5 | NNE | 24 | 1020 |
| 10:00 | 15:00 | 17.8 | 8.8 | 0 | 8.8 | NNE | 18 | 1021 |
| 11:00 | 16:00 | 18.8 | 9.9 | 0 | 8.6 | NNE | 15 | 1022 |
| 12:00 | 17:00 | 20 | 11.2 | 0 | 8.4 | NNE | 14 | 1022 |
| 13:00 | 18:00 | 20.7 | 12.1 | 0 | 8.1 | NNE | 13 | 1022 |
| 14:00 | 19:00 | 21.2 | 13.1 | 0 | 7.4 | NNE | 13 | 1021 |
| 15:00 | 20:00 | 21.7 | 14.3 | 0 | 6.6 | NNE | 13 | 1021 |
| 16:00 | 21:00 | 23 | 15.9 | 0 | 6 | NNE | 12 | 1020 |
| 17:00 | 22:00 | 22.7 | 16.7 | 0 | 4.6 | NNE | 13 | 1020 |
| 18:00 | 23:00 | 22.7 | 16.7 | 0 | 4.6 | NNE | 13 | 1020 |
| 19:00 | 00:00 | 22.3 | 16.3 | 0 | 4.6 | NNE | 14 | 1020 |
| 20:00 | 01:00 | 21.3 | 16.2 | 0 | 3.1 | NE | 14 | 1020 |
| 21:00 | 02:00 | 19.4 | 14.8 | 0 | 2.7 | NE | 16 | 1021 |
| 22:00 | 03:00 | 13.9 | 9.5 | 0 | 2.4 | ENE | 24 | 1021 |
| 23:00 | 04:00 | 12.8 | 8.5 | 0 | 2.2 | E | 25 | 1022 |
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
- Roby — 32.750°, -100.500°, ERA5 grid cell center, 11.5 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 18 April 2018 specifically — not a monthly average. See the Roby 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 Roby, United States (32.75°N, 100.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Roby, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Roby, 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 Roby, 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.