Idalou
United States · 31 May 2016
Average
20.7°C
low 15.8° · high 27.7°
Rainfall
4.5mm
rain recorded
Wind
3.2m/s
daily average
Humidity
73.7%
daily average
Cloud
77%
cover
Pressure
1011hPa
daily average
The temperature ranged from 15.8°C around 05:00 to 27.7°C around 16:00. Rain was recorded across 7 hours, from around 08:00 to 19:00 (4.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
34th percentile
Low temperature
42th percentile
Rainfall
83th percentile
Wind
20th 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 23.2°C, versus 20.7°C on this specific day.
Sun & daylight
Sunrise
06:37
Sunset
20:52
Day length
14h 15m
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 | 18.6 | 15.8 | 0 | 7.2 | SSE | 89 | 1013 |
| 01:00 | 06:00 | 18.5 | 17.4 | 0 | 4.9 | S | 89 | 1013 |
| 02:00 | 07:00 | 18.1 | 17.9 | 0 | 3.4 | SSW | 91 | 1012 |
| 03:00 | 08:00 | 17.5 | 16.7 | 0 | 4 | SSW | 92 | 1011 |
| 04:00 | 09:00 | 18 | 17.3 | 0 | 4.2 | SSW | 92 | 1011 |
| 05:00 | 10:00 | 15.8 | 14.4 | 0 | 4 | WSW | 91 | 1010 |
| 06:00 | 11:00 | 16.1 | 15.5 | 0 | 3 | W | 91 | 1010 |
| 07:00 | 12:00 | 16.3 | 16.9 | 0 | 1.5 | WSW | 92 | 1012 |
| 08:00 | 13:00 | 17.7 | 19.2 | 0.31 | 0.9 | S | 92 | 1013 |
| 09:00 | 14:00 | 17.7 | 19.3 | 0.52 | 0.6 | SSE | 90 | 1013 |
| 10:00 | 15:00 | 20.7 | 22 | 0.19 | 0.7 | NE | 73 | 1013 |
| 11:00 | 16:00 | 21.3 | 20.9 | 0.01 | 2.6 | NE | 65 | 1013 |
| 12:00 | 17:00 | 23.4 | 22.9 | 0 | 2.4 | ENE | 55 | 1012 |
| 13:00 | 18:00 | 24.8 | 24.1 | 0.03 | 2.3 | ENE | 47 | 1011 |
| 14:00 | 19:00 | 26.1 | 24.8 | 0.02 | 3.1 | ENE | 44 | 1010 |
| 15:00 | 20:00 | 27.7 | 25.4 | 0.07 | 4.2 | ENE | 39 | 1010 |
| 16:00 | 21:00 | 27.7 | 24 | 0.43 | 5.7 | E | 35 | 1010 |
| 17:00 | 22:00 | 21.8 | 19.8 | 1.75 | 5.6 | E | 70 | 1008 |
| 18:00 | 23:00 | 22.6 | 21.7 | 0.83 | 4.6 | ESE | 69 | 1008 |
| 19:00 | 00:00 | 23.4 | 23.8 | 0.16 | 2.4 | ESE | 64 | 1009 |
| 20:00 | 01:00 | 23.3 | 24.1 | 0.06 | 1.8 | E | 65 | 1010 |
| 21:00 | 02:00 | 21.7 | 22.5 | 0.05 | 1.8 | ENE | 71 | 1011 |
| 22:00 | 03:00 | 19.1 | 19.4 | 0.03 | 2.1 | N | 80 | 1011 |
| 23:00 | 04:00 | 18.4 | 18.2 | 0.04 | 2.7 | NNW | 82 | 1013 |
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 31 May 2016 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.