Ottawa
United States · 20 June 2016
Average
28.3°C
low 24.6°C · high 32.9°C
Rainfall
3.6mm
rain recorded
Wind
4.7m/s
daily average
Humidity
63.2%
daily average
Cloud
66%
cover
Pressure
1018hPa
daily average
The temperature ranged from 24.6°C around 23:00 to 32.9°C around 15:00. Rain was recorded across 2 hours, from around 15:00 to 19:00 (3.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
81th percentile
Low temperature
96th percentile
Rainfall
73th percentile
Wind
83th 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 23.8°C, versus 28.3°C on this specific day.
Sun & daylight
Sunrise
05:22
Sunset
20:31
Day length
15h 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 | 26.5°C | 26.1°C | 0 | 4.5 | SSW | 60 | 1019 |
| 01:00 | 06:00 | 26°C | 25.6°C | 0 | 4.6 | SSW | 62 | 1019 |
| 02:00 | 07:00 | 25.7°C | 25°C | 0 | 5.1 | SSW | 63 | 1019 |
| 03:00 | 08:00 | 25.4°C | 24.5°C | 0 | 5.6 | SW | 65 | 1020 |
| 04:00 | 09:00 | 25.1°C | 24.3°C | 0 | 5.6 | SW | 68 | 1020 |
| 05:00 | 10:00 | 24.8°C | 24.7°C | 0 | 5.5 | WSW | 75 | 1020 |
| 06:00 | 11:00 | 24.9°C | 25.1°C | 0 | 5.1 | SW | 75 | 1019 |
| 07:00 | 12:00 | 25.4°C | 26°C | 0 | 4.5 | SW | 73 | 1019 |
| 08:00 | 13:00 | 26.6°C | 27.3°C | 0 | 4.9 | SW | 70 | 1019 |
| 09:00 | 14:00 | 27.7°C | 28.2°C | 0 | 5.1 | WSW | 66 | 1019 |
| 10:00 | 15:00 | 30°C | 29.3°C | 0 | 5.6 | WSW | 52 | 1019 |
| 11:00 | 16:00 | 31°C | 29.8°C | 0 | 6.5 | WSW | 50 | 1019 |
| 12:00 | 17:00 | 31.7°C | 30.6°C | 0 | 6.6 | WSW | 49 | 1018 |
| 13:00 | 18:00 | 32.1°C | 31.6°C | 0 | 6.3 | W | 50 | 1018 |
| 14:00 | 19:00 | 32.7°C | 32.9°C | 0.04 | 5.9 | W | 52 | 1017 |
| 15:00 | 20:00 | 32.9°C | 33.9°C | 3.15 | 5.5 | W | 54 | 1017 |
| 16:00 | 21:00 | 32.5°C | 33.7°C | 0.01 | 5.3 | WNW | 55 | 1016 |
| 17:00 | 22:00 | 30.7°C | 32.6°C | 0.03 | 5 | W | 64 | 1016 |
| 18:00 | 23:00 | 31.4°C | 33.8°C | 0.01 | 3.4 | WSW | 58 | 1015 |
| 19:00 | 00:00 | 30.3°C | 33.2°C | 0.36 | 2.4 | WSW | 60 | 1016 |
| 20:00 | 01:00 | 28.8°C | 31.4°C | 0 | 2.6 | SW | 65 | 1017 |
| 21:00 | 02:00 | 27°C | 29.2°C | 0 | 2.9 | WSW | 70 | 1016 |
| 22:00 | 03:00 | 25.2°C | 28.2°C | 0 | 2.7 | W | 84 | 1017 |
| 23:00 | 04:00 | 24.6°C | 27°C | 0 | 2.2 | NW | 78 | 1017 |
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 20 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 (2026-07-20). 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 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Ottawa, 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 Ottawa, 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.