Idalou
United States · 26 May 2018
Average
28.2°C
low 20.2°C · high 37°C
Rainfall
0mm
dry day
Wind
4.7m/s
daily average
Humidity
39.4%
daily average
Cloud
53%
cover
Pressure
1007hPa
daily average
The temperature ranged from 20.2°C around 04:00 to 37°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
94th percentile
Rainfall
40th percentile
Wind
47th 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 21.7°C, versus 28.2°C on this specific day.
Sun & daylight
Sunrise
06:39
Sunset
20:48
Day length
14h 9m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 24.7°C | 22.7°C | 0 | 3.2 | SE | 42 | 1009 |
| 01:00 | 06:00 | 22.7°C | 20.3°C | 0 | 3.8 | SE | 48 | 1009 |
| 02:00 | 07:00 | 21.7°C | 19.4°C | 0 | 3.9 | SSE | 51 | 1009 |
| 03:00 | 08:00 | 21.5°C | 19°C | 0 | 4.3 | S | 53 | 1009 |
| 04:00 | 09:00 | 20.2°C | 16.8°C | 0 | 5.3 | SSW | 55 | 1009 |
| 05:00 | 10:00 | 20.5°C | 16.5°C | 0 | 7.4 | SSW | 65 | 1010 |
| 06:00 | 11:00 | 20.5°C | 18°C | 0 | 5.7 | SSW | 69 | 1010 |
| 07:00 | 12:00 | 20.5°C | 19°C | 0 | 4.6 | SW | 72 | 1010 |
| 08:00 | 13:00 | 21.2°C | 19.7°C | 0 | 4.5 | SW | 68 | 1011 |
| 09:00 | 14:00 | 24.1°C | 22.5°C | 0 | 4.7 | SW | 58 | 1011 |
| 10:00 | 15:00 | 28.3°C | 25.8°C | 0 | 4.6 | WSW | 37 | 1010 |
| 11:00 | 16:00 | 30.4°C | 28.6°C | 0 | 3.9 | WSW | 34 | 1009 |
| 12:00 | 17:00 | 32.5°C | 30.8°C | 0 | 3.3 | SW | 29 | 1009 |
| 13:00 | 18:00 | 33.9°C | 31.9°C | 0 | 2.5 | SSW | 22 | 1008 |
| 14:00 | 19:00 | 34.8°C | 32.1°C | 0 | 3.2 | SSE | 20 | 1007 |
| 15:00 | 20:00 | 35.6°C | 32.3°C | 0 | 3.9 | SSE | 18 | 1006 |
| 16:00 | 21:00 | 37°C | 32.4°C | 0 | 4.5 | SSE | 13 | 1005 |
| 17:00 | 22:00 | 35.9°C | 32.1°C | 0 | 4.5 | S | 17 | 1004 |
| 18:00 | 23:00 | 35.7°C | 31.9°C | 0 | 4.4 | SSE | 17 | 1004 |
| 19:00 | 00:00 | 35.1°C | 31.4°C | 0 | 4.6 | SE | 19 | 1003 |
| 20:00 | 01:00 | 34.1°C | 29.8°C | 0 | 5.4 | SE | 20 | 1003 |
| 21:00 | 02:00 | 32.3°C | 27.9°C | 0 | 6.2 | ESE | 24 | 1004 |
| 22:00 | 03:00 | 27.3°C | 23.9°C | 0 | 6.4 | ESE | 44 | 1005 |
| 23:00 | 04:00 | 26°C | 22.7°C | 0 | 6.9 | SE | 50 | 1006 |
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 26 May 2018 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 (2026-07-20). 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 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Idalou, 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 Idalou, 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.