Home / Willmar / 15 September 2020
Willmar
United States · 15 September 2020
← 14 September 202016 September 2020 →
Average
20.8°C
low 16.8°C · high 27.2°C
Rainfall
0mm
dry day
Wind
5.3m/s
daily average
Humidity
68.6%
daily average
Cloud
20%
cover
Pressure
1015hPa
daily average
The temperature ranged from 16.8°C around 07:00 to 27.2°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
69th percentile
Low temperature
76th percentile
Rainfall
46th percentile
Wind
79th 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 19.1°C, versus 20.8°C on this specific day.
Sun & daylight
Sunrise
06:59
Sunset
19:29
Day length
12h 30m
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 | 19°C | 15.3°C | 0 | 7.1 | SSW | 74 | 1018 |
| 01:00 | 06:00 | 18.4°C | 14.5°C | 0 | 7.2 | SSW | 74 | 1018 |
| 02:00 | 07:00 | 18°C | 13.9°C | 0 | 7.2 | SSW | 73 | 1017 |
| 03:00 | 08:00 | 17.7°C | 13.6°C | 0 | 7.2 | SSW | 74 | 1017 |
| 04:00 | 09:00 | 17.7°C | 13.8°C | 0 | 7 | SSW | 75 | 1017 |
| 05:00 | 10:00 | 17°C | 12.8°C | 0 | 6.9 | SW | 74 | 1017 |
| 06:00 | 11:00 | 16.9°C | 12.8°C | 0 | 6.7 | SSW | 74 | 1017 |
| 07:00 | 12:00 | 16.8°C | 12.7°C | 0 | 6.8 | SSW | 73 | 1016 |
| 08:00 | 13:00 | 17°C | 13°C | 0 | 6.7 | SSW | 73 | 1016 |
| 09:00 | 14:00 | 18°C | 15°C | 0 | 5.5 | SSW | 73 | 1016 |
| 10:00 | 15:00 | 20.8°C | 17.2°C | 0 | 6.1 | SW | 57 | 1016 |
| 11:00 | 16:00 | 21.9°C | 18.6°C | 0 | 6.3 | SW | 58 | 1015 |
| 12:00 | 17:00 | 23.9°C | 20.8°C | 0 | 6.2 | SW | 54 | 1015 |
| 13:00 | 18:00 | 24.8°C | 22.1°C | 0 | 6.2 | SW | 54 | 1014 |
| 14:00 | 19:00 | 25.7°C | 23.5°C | 0 | 6 | SW | 55 | 1014 |
| 15:00 | 20:00 | 26.6°C | 24.8°C | 0 | 5.7 | SW | 54 | 1013 |
| 16:00 | 21:00 | 27.2°C | 25.8°C | 0 | 5.2 | WSW | 53 | 1013 |
| 17:00 | 22:00 | 26.2°C | 25.9°C | 0 | 4.4 | WSW | 61 | 1012 |
| 18:00 | 23:00 | 25.7°C | 26.7°C | 0 | 2.6 | WSW | 63 | 1012 |
| 19:00 | 00:00 | 24°C | 25.1°C | 0 | 2.3 | WSW | 68 | 1012 |
| 20:00 | 01:00 | 22.1°C | 22.6°C | 0 | 2.5 | WSW | 73 | 1012 |
| 21:00 | 02:00 | 20.1°C | 20.8°C | 0 | 2.1 | W | 79 | 1012 |
| 22:00 | 03:00 | 17.8°C | 18.5°C | 0 | 1.9 | W | 90 | 1012 |
| 23:00 | 04:00 | 17°C | 17.5°C | 0 | 1.8 | WNW | 91 | 1013 |
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
- Willmar — 45.000°, -95.000°, ERA5 grid cell center, 14.0 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 15 September 2020 specifically — not a monthly average. See the Willmar 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 Willmar, United States (45.00°N, 95.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Willmar, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Willmar, 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 Willmar, 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.