Home / Waterloo / 31 August 2019
Waterloo
United States · 31 August 2019
← 30 August 20191 September 2019 →
Average
16.8°C
low 14°C · high 19.3°C
Rainfall
2.3mm
rain recorded
Wind
2.8m/s
daily average
Humidity
71.7%
daily average
Cloud
82%
cover
Pressure
1024hPa
daily average
The temperature ranged from 14°C around 07:00 to 19.3°C around 16:00. Rain was recorded across 9 hours, from around 09:00 to 21:00 (2.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
4th percentile
Low temperature
36th percentile
Rainfall
79th percentile
Wind
31th 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 20.8°C, versus 16.8°C on this specific day.
Sun & daylight
Sunrise
06:32
Sunset
19:45
Day length
13h 12m
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 | 16.4°C | 15.3°C | 0 | 2.1 | ESE | 72 | 1023 |
| 01:00 | 06:00 | 17°C | 16.5°C | 0 | 1.6 | ESE | 73 | 1024 |
| 02:00 | 07:00 | 16.7°C | 15.9°C | 0 | 2 | E | 74 | 1024 |
| 03:00 | 08:00 | 16.2°C | 15.7°C | 0 | 1.6 | ENE | 77 | 1024 |
| 04:00 | 09:00 | 16.2°C | 15.8°C | 0 | 1.6 | ENE | 77 | 1024 |
| 05:00 | 10:00 | 14.2°C | 13.4°C | 0 | 1.8 | ENE | 84 | 1024 |
| 06:00 | 11:00 | 14.2°C | 12.5°C | 0 | 3 | ENE | 82 | 1024 |
| 07:00 | 12:00 | 14°C | 12.1°C | 0 | 3.2 | E | 80 | 1024 |
| 08:00 | 13:00 | 15°C | 12.7°C | 0.04 | 3.8 | E | 78 | 1025 |
| 09:00 | 14:00 | 15.6°C | 13.3°C | 0.18 | 4.1 | E | 78 | 1024 |
| 10:00 | 15:00 | 17.9°C | 14.8°C | 0.01 | 4.4 | ESE | 58 | 1024 |
| 11:00 | 16:00 | 18°C | 15.2°C | 0.07 | 4.1 | ESE | 60 | 1025 |
| 12:00 | 17:00 | 18.1°C | 15.7°C | 0.2 | 3.7 | ESE | 63 | 1024 |
| 13:00 | 18:00 | 18.3°C | 16.7°C | 0.14 | 2.9 | ESE | 63 | 1024 |
| 14:00 | 19:00 | 18.6°C | 17.3°C | 0.17 | 2.6 | ENE | 62 | 1025 |
| 15:00 | 20:00 | 18.9°C | 17.2°C | 0.48 | 3 | ENE | 62 | 1024 |
| 16:00 | 21:00 | 19.3°C | 17.7°C | 0.09 | 2.7 | NE | 58 | 1023 |
| 17:00 | 22:00 | 18.3°C | 16.6°C | 0.15 | 3.1 | ENE | 65 | 1023 |
| 18:00 | 23:00 | 18.2°C | 16.8°C | 0.03 | 3 | ENE | 68 | 1022 |
| 19:00 | 00:00 | 17.9°C | 16.1°C | 0.17 | 3.3 | ENE | 67 | 1022 |
| 20:00 | 01:00 | 17.2°C | 15.9°C | 0.22 | 2.5 | NE | 69 | 1022 |
| 21:00 | 02:00 | 17°C | 15.9°C | 0.35 | 2.5 | NE | 73 | 1022 |
| 22:00 | 03:00 | 15.4°C | 14.6°C | 0.05 | 2.7 | ENE | 88 | 1023 |
| 23:00 | 04:00 | 14.5°C | 13.3°C | 0 | 2.9 | ENE | 88 | 1023 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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
- Waterloo — 42.500°, -92.250°, ERA5 grid cell center, 7.7 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 31 August 2019 specifically — not a monthly average. See the Waterloo 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 Waterloo, United States (42.50°N, 92.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Waterloo, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Waterloo, 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 Waterloo, 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.