Idalou
United States · 25 May 2017
Average
27.9°C
low 15.8° · high 37.7°
Rainfall
0mm
dry day
Wind
6.8m/s
daily average
Humidity
20.5%
daily average
Cloud
21%
cover
Pressure
999hPa
daily average
The temperature ranged from 15.8°C around 05:00 to 37.7°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
97th percentile
Low temperature
47th percentile
Rainfall
40th percentile
Wind
90th 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 22.3°C, versus 27.9°C on this specific day.
Sun & daylight
Sunrise
06:39
Sunset
20:48
Day length
14h 8m
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 | 20.8 | 16 | 0 | 5.1 | S | 34 | 1001 |
| 01:00 | 06:00 | 20.8 | 15.5 | 0 | 5.9 | SSW | 34 | 1001 |
| 02:00 | 07:00 | 20.2 | 14.3 | 0 | 6.7 | SSW | 35 | 1001 |
| 03:00 | 08:00 | 19.4 | 13.6 | 0 | 6.5 | SSW | 38 | 1001 |
| 04:00 | 09:00 | 18.3 | 13.4 | 0 | 5.9 | SW | 47 | 1001 |
| 05:00 | 10:00 | 15.8 | 11.3 | 0 | 4.9 | SW | 50 | 1001 |
| 06:00 | 11:00 | 15.9 | 11.4 | 0 | 4.9 | WSW | 49 | 1001 |
| 07:00 | 12:00 | 15.9 | 11.2 | 0 | 4.7 | WSW | 44 | 1001 |
| 08:00 | 13:00 | 17.3 | 12.2 | 0 | 5.2 | WSW | 40 | 1001 |
| 09:00 | 14:00 | 22.7 | 17.4 | 0 | 5.4 | W | 28 | 1001 |
| 10:00 | 15:00 | 29.3 | 22.1 | 0 | 6.5 | WNW | 10 | 1000 |
| 11:00 | 16:00 | 33.4 | 25.6 | 0 | 7.4 | WNW | 8 | 1000 |
| 12:00 | 17:00 | 35.5 | 27.5 | 0 | 7.6 | WNW | 7 | 999 |
| 13:00 | 18:00 | 36.4 | 28.3 | 0 | 7.7 | W | 6 | 999 |
| 14:00 | 19:00 | 36.5 | 28.4 | 0 | 7.8 | W | 7 | 998 |
| 15:00 | 20:00 | 36.9 | 28.7 | 0 | 8.1 | WSW | 7 | 998 |
| 16:00 | 21:00 | 37.7 | 29.2 | 0 | 8.3 | WSW | 6 | 997 |
| 17:00 | 22:00 | 36.8 | 28.3 | 0 | 8.2 | WSW | 6 | 997 |
| 18:00 | 23:00 | 36.8 | 27.8 | 0 | 8.6 | WSW | 5 | 996 |
| 19:00 | 00:00 | 36.9 | 28.5 | 0 | 7.3 | WSW | 4 | 996 |
| 20:00 | 01:00 | 36 | 28 | 0 | 6.6 | SW | 3 | 996 |
| 21:00 | 02:00 | 33.1 | 25 | 0 | 7 | SW | 5 | 997 |
| 22:00 | 03:00 | 29.2 | 20.9 | 0 | 8.1 | SW | 10 | 999 |
| 23:00 | 04:00 | 28.2 | 20 | 0 | 7.9 | SW | 10 | 1000 |
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
- Idalou — 33.750°, -101.750°, ERA5 grid cell center, 11.2 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 25 May 2017 specifically — not a monthly average. See the Idalou 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 Idalou, United States (33.75°N, 101.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Idalou, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Idalou, 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 Idalou, 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.