Home / Onalaska / 21 June 2018
Onalaska
United States · 21 June 2018
Average
18.7°C
low 16.5° · high 20.8°
Rainfall
20.7mm
rain recorded
Wind
2.9m/s
daily average
Humidity
85.7%
daily average
Cloud
100%
cover
Pressure
1011hPa
daily average
The temperature ranged from 16.5°C around 09:00 to 20.8°C around 16:00. Rain was recorded across 19 hours, from around 00:00 to 18:00 (20.7mm 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
43th percentile
Rainfall
93th percentile
Wind
44th 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 18.7°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 °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 20.1 | 20 | 0.7 | 3.5 | E | 82 | 1010 |
| 01:00 | 06:00 | 19.8 | 19.6 | 0.94 | 3.6 | E | 83 | 1010 |
| 02:00 | 07:00 | 19 | 18.6 | 0.14 | 3.7 | E | 85 | 1009 |
| 03:00 | 08:00 | 18.8 | 18.2 | 0.27 | 3.8 | E | 85 | 1009 |
| 04:00 | 09:00 | 17.6 | 16.8 | 0.74 | 3.7 | E | 87 | 1010 |
| 05:00 | 10:00 | 17.8 | 17 | 1.36 | 3.8 | E | 87 | 1010 |
| 06:00 | 11:00 | 17.6 | 16.7 | 2 | 3.8 | E | 87 | 1010 |
| 07:00 | 12:00 | 17.2 | 16.1 | 2.23 | 3.8 | E | 86 | 1011 |
| 08:00 | 13:00 | 16.9 | 15.7 | 1.77 | 3.8 | ENE | 86 | 1011 |
| 09:00 | 14:00 | 16.5 | 15 | 1.09 | 4.1 | ENE | 86 | 1011 |
| 10:00 | 15:00 | 17.4 | 15.9 | 0.91 | 4.2 | ENE | 82 | 1011 |
| 11:00 | 16:00 | 17.9 | 16.5 | 1.16 | 4.2 | ENE | 84 | 1011 |
| 12:00 | 17:00 | 18 | 16.7 | 1.03 | 4.3 | ENE | 84 | 1011 |
| 13:00 | 18:00 | 18.7 | 17.8 | 0.53 | 3.8 | E | 82 | 1012 |
| 14:00 | 19:00 | 19.9 | 19.9 | 1.42 | 3.1 | ENE | 80 | 1012 |
| 15:00 | 20:00 | 20.6 | 20.8 | 1.76 | 2.8 | ENE | 77 | 1012 |
| 16:00 | 21:00 | 20.8 | 21.9 | 1.59 | 1.5 | NE | 75 | 1011 |
| 17:00 | 22:00 | 19.4 | 20.4 | 0.8 | 2 | ESE | 86 | 1011 |
| 18:00 | 23:00 | 19.7 | 21.4 | 0.23 | 1 | S | 85 | 1011 |
| 19:00 | 00:00 | 20 | 22.3 | 0.03 | 0.4 | W | 85 | 1011 |
| 20:00 | 01:00 | 19.7 | 22.1 | 0 | 0.5 | WNW | 89 | 1012 |
| 21:00 | 02:00 | 19 | 21 | 0 | 1 | NW | 93 | 1012 |
| 22:00 | 03:00 | 18.3 | 20.1 | 0 | 1.5 | NW | 99 | 1012 |
| 23:00 | 04:00 | 18.1 | 19.7 | 0 | 1.8 | NNW | 99 | 1012 |
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 2018 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 (2026-07-17). 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 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Onalaska, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 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 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.