Ottawa
United States · 28 June 2016
Average
20.7°C
low 17° · high 23.5°
Rainfall
0mm
dry day
Wind
3.5m/s
daily average
Humidity
65.9%
daily average
Cloud
19%
cover
Pressure
1020hPa
daily average
The temperature ranged from 17°C around 23:00 to 23.5°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
5th percentile
Low temperature
19th percentile
Rainfall
32th percentile
Wind
56th 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 24.5°C, versus 20.7°C on this specific day.
Sun & daylight
Sunrise
05:24
Sunset
20:32
Day length
15h 7m
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 | 21.8 | 22 | 0 | 3.4 | NW | 77 | 1018 |
| 01:00 | 06:00 | 20.5 | 20.6 | 0 | 3.4 | NNW | 81 | 1018 |
| 02:00 | 07:00 | 20 | 19.7 | 0 | 3.6 | N | 82 | 1018 |
| 03:00 | 08:00 | 19.7 | 19.4 | 0 | 3.6 | N | 82 | 1019 |
| 04:00 | 09:00 | 18.3 | 17.9 | 0 | 3.2 | NNE | 84 | 1019 |
| 05:00 | 10:00 | 18.2 | 18 | 0 | 2.7 | N | 82 | 1020 |
| 06:00 | 11:00 | 18.2 | 17.7 | 0 | 2.9 | N | 82 | 1020 |
| 07:00 | 12:00 | 18.8 | 18.1 | 0 | 3.6 | NNE | 80 | 1020 |
| 08:00 | 13:00 | 19.4 | 18.8 | 0 | 3.6 | N | 81 | 1021 |
| 09:00 | 14:00 | 20 | 19.7 | 0 | 3.4 | N | 79 | 1021 |
| 10:00 | 15:00 | 21.2 | 20.2 | 0 | 3.5 | NNW | 66 | 1021 |
| 11:00 | 16:00 | 21.6 | 20.2 | 0 | 4.1 | NNW | 64 | 1022 |
| 12:00 | 17:00 | 21.8 | 19.9 | 0 | 4.6 | N | 61 | 1021 |
| 13:00 | 18:00 | 22.3 | 20.2 | 0 | 4.6 | N | 57 | 1021 |
| 14:00 | 19:00 | 22.7 | 20.6 | 0 | 4.4 | N | 55 | 1021 |
| 15:00 | 20:00 | 22.9 | 20.9 | 0 | 4.2 | N | 53 | 1021 |
| 16:00 | 21:00 | 23.5 | 21.2 | 0 | 4 | N | 48 | 1020 |
| 17:00 | 22:00 | 23.4 | 21.1 | 0 | 3.9 | N | 48 | 1020 |
| 18:00 | 23:00 | 23.3 | 21.3 | 0 | 3.5 | N | 47 | 1020 |
| 19:00 | 00:00 | 22.6 | 20.8 | 0 | 3.2 | N | 48 | 1020 |
| 20:00 | 01:00 | 21.4 | 20 | 0 | 2.3 | N | 51 | 1020 |
| 21:00 | 02:00 | 20.3 | 18.6 | 0 | 2.5 | N | 51 | 1020 |
| 22:00 | 03:00 | 17.9 | 16.4 | 0 | 2.4 | N | 62 | 1020 |
| 23:00 | 04:00 | 17 | 14.9 | 0 | 2.5 | NNE | 59 | 1020 |
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
- Ottawa — 41.250°, -88.750°, ERA5 grid cell center, 13.1 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 28 June 2016 specifically — not a monthly average. See the Ottawa 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 Ottawa, United States (41.25°N, 88.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Ottawa, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Ottawa, 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 Ottawa, 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.