Home / Spring / 31 August 2018
Spring
United States · 31 August 2018
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Average
28.7°C
low 23.4°C · high 34.2°C
Rainfall
0.6mm
dry day
Wind
1.8m/s
daily average
Humidity
73.6%
daily average
Cloud
37%
cover
Pressure
1014hPa
daily average
The temperature ranged from 23.4°C around 06:00 to 34.2°C around 15:00. Rain was recorded for one hour, around 17:00 (0.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
67th percentile
Low temperature
33th percentile
Rainfall
42th percentile
Wind
30th 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 28°C, versus 28.7°C on this specific day.
Sun & daylight
Sunrise
06:58
Sunset
19:45
Day length
12h 47m
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 | 25.9°C | 30.3°C | 0 | 1.6 | SE | 87 | 1015 |
| 01:00 | 06:00 | 25.3°C | 29.6°C | 0 | 1.6 | SSE | 89 | 1015 |
| 02:00 | 07:00 | 24.9°C | 29.4°C | 0 | 1.3 | S | 91 | 1014 |
| 03:00 | 08:00 | 24.5°C | 28.9°C | 0 | 1.4 | S | 93 | 1014 |
| 04:00 | 09:00 | 24.7°C | 29.4°C | 0 | 0.9 | SSW | 91 | 1014 |
| 05:00 | 10:00 | 23.5°C | 27.8°C | 0 | 1.6 | NW | 98 | 1014 |
| 06:00 | 11:00 | 23.4°C | 28°C | 0 | 1.1 | N | 98 | 1014 |
| 07:00 | 12:00 | 23.5°C | 28.4°C | 0 | 0.6 | E | 98 | 1015 |
| 08:00 | 13:00 | 24.8°C | 30.4°C | 0 | 0.3 | WNW | 95 | 1015 |
| 09:00 | 14:00 | 27.2°C | 32.7°C | 0 | 0.8 | N | 85 | 1015 |
| 10:00 | 15:00 | 30.2°C | 34.2°C | 0.03 | 0.9 | ENE | 61 | 1015 |
| 11:00 | 16:00 | 31.3°C | 34.9°C | 0.05 | 1.6 | E | 58 | 1015 |
| 12:00 | 17:00 | 32.3°C | 35.5°C | 0.06 | 1.8 | E | 54 | 1015 |
| 13:00 | 18:00 | 32.8°C | 36.1°C | 0.05 | 2.2 | E | 54 | 1014 |
| 14:00 | 19:00 | 33.5°C | 36.7°C | 0 | 2.7 | E | 53 | 1013 |
| 15:00 | 20:00 | 34.2°C | 37.2°C | 0.01 | 3 | ESE | 51 | 1013 |
| 16:00 | 21:00 | 33.5°C | 36.5°C | 0.03 | 2.8 | ESE | 52 | 1012 |
| 17:00 | 22:00 | 33.5°C | 36.1°C | 0.33 | 3.7 | ESE | 54 | 1011 |
| 18:00 | 23:00 | 32.7°C | 35.8°C | 0 | 3.1 | SE | 57 | 1012 |
| 19:00 | 00:00 | 31.8°C | 34.8°C | 0 | 2.8 | SE | 58 | 1012 |
| 20:00 | 01:00 | 30.6°C | 33.4°C | 0 | 2.8 | SE | 61 | 1012 |
| 21:00 | 02:00 | 29.6°C | 33°C | 0 | 2.1 | SE | 65 | 1012 |
| 22:00 | 03:00 | 28.1°C | 33.2°C | 0 | 1.6 | SE | 81 | 1013 |
| 23:00 | 04:00 | 27.8°C | 32.8°C | 0 | 1.7 | SE | 83 | 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
- Spring — 30.000°, -95.500°, ERA5 grid cell center, 11.9 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 31 August 2018 specifically — not a monthly average. See the Spring 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 Spring, United States (30.00°N, 95.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Spring, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Spring, 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 Spring, 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.