Home / Onalaska / 21 June 2021
Onalaska
United States · 21 June 2021
Average
15.5°C
low 11.7°C · high 17.5°C
Rainfall
0.2mm
dry day
Wind
5.4m/s
daily average
Humidity
63.9%
daily average
Cloud
56%
cover
Pressure
1010hPa
daily average
The temperature ranged from 11.7°C around 23:00 to 17.5°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
1th percentile
Low temperature
4th percentile
Rainfall
45th percentile
Wind
97th 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 21.8°C, versus 15.5°C on this specific day.
Sun & daylight
Sunrise
05:22
Sunset
20:51
Day length
15h 29m
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 | 16.3°C | 12.8°C | 0 | 6.5 | NW | 83 | 1001 |
| 01:00 | 06:00 | 15.8°C | 12.3°C | 0 | 6.4 | NW | 84 | 1003 |
| 02:00 | 07:00 | 16°C | 12.6°C | 0 | 6.4 | NW | 84 | 1003 |
| 03:00 | 08:00 | 16.1°C | 13.3°C | 0 | 5.5 | NW | 84 | 1004 |
| 04:00 | 09:00 | 15°C | 11.6°C | 0 | 5.8 | NW | 81 | 1005 |
| 05:00 | 10:00 | 14.3°C | 10°C | 0 | 6.6 | NW | 80 | 1006 |
| 06:00 | 11:00 | 14.2°C | 9.8°C | 0.03 | 6.5 | NNW | 79 | 1008 |
| 07:00 | 12:00 | 13.9°C | 9.7°C | 0.04 | 6 | NNW | 76 | 1009 |
| 08:00 | 13:00 | 13.9°C | 9.5°C | 0 | 6 | NNW | 72 | 1009 |
| 09:00 | 14:00 | 14.6°C | 9.6°C | 0 | 6.5 | NNW | 65 | 1010 |
| 10:00 | 15:00 | 16°C | 10.8°C | 0 | 6.4 | NW | 55 | 1011 |
| 11:00 | 16:00 | 16.8°C | 10.7°C | 0 | 7.4 | NNW | 50 | 1012 |
| 12:00 | 17:00 | 16.6°C | 10.6°C | 0.03 | 7.3 | NNW | 49 | 1011 |
| 13:00 | 18:00 | 16.6°C | 10.9°C | 0.01 | 6.7 | NNW | 49 | 1012 |
| 14:00 | 19:00 | 16.7°C | 11.5°C | 0 | 6.1 | NW | 50 | 1012 |
| 15:00 | 20:00 | 16.9°C | 11.8°C | 0.01 | 5.9 | NW | 48 | 1012 |
| 16:00 | 21:00 | 17.5°C | 12.5°C | 0 | 5.7 | NW | 46 | 1013 |
| 17:00 | 22:00 | 16.6°C | 11.9°C | 0.01 | 4.9 | NW | 46 | 1013 |
| 18:00 | 23:00 | 16.7°C | 12.3°C | 0.06 | 4.6 | NW | 45 | 1012 |
| 19:00 | 00:00 | 16.7°C | 12.7°C | 0.02 | 4.1 | NW | 47 | 1013 |
| 20:00 | 01:00 | 15.9°C | 12.7°C | 0 | 3.2 | NW | 52 | 1013 |
| 21:00 | 02:00 | 14.1°C | 11.8°C | 0 | 2.5 | NW | 65 | 1013 |
| 22:00 | 03:00 | 12.7°C | 10.7°C | 0 | 1.8 | WNW | 69 | 1014 |
| 23:00 | 04:00 | 11.7°C | 10.2°C | 0 | 1.3 | W | 74 | 1014 |
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
- Onalaska — 44.000°, -91.250°, ERA5 grid cell center, 12.9 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 21 June 2021 specifically — not a monthly average. See the Onalaska 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 (2026-07-21). Historical climate data for Onalaska, United States (44.00°N, 91.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Onalaska, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Onalaska, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Onalaska, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.