Home / Tomahawk / 20 August 2017
Tomahawk
United States · 20 August 2017
← 19 August 201721 August 2017 →
Average
20.1°C
low 14.1°C · high 25.9°C
Rainfall
2.6mm
rain recorded
Wind
3.5m/s
daily average
Humidity
84%
daily average
Cloud
53%
cover
Pressure
1014hPa
daily average
The temperature ranged from 14.1°C around 06:00 to 25.9°C around 15:00. Rain was recorded across 3 hours, from around 16:00 to 18:00 (2.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
72th percentile
Low temperature
48th percentile
Rainfall
73th percentile
Wind
71th 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°C, versus 20.1°C on this specific day.
Sun & daylight
Sunrise
06:06
Sunset
19:57
Day length
13h 52m
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 | 16.5°C | 16.4°C | 0 | 2.5 | SSW | 91 | 1014 |
| 01:00 | 06:00 | 16.1°C | 15.9°C | 0 | 2.5 | SSW | 91 | 1014 |
| 02:00 | 07:00 | 15.3°C | 14.8°C | 0 | 2.4 | SSW | 91 | 1014 |
| 03:00 | 08:00 | 14.8°C | 14.2°C | 0 | 2.4 | SSW | 92 | 1014 |
| 04:00 | 09:00 | 14.2°C | 13.3°C | 0 | 2.6 | SSW | 92 | 1014 |
| 05:00 | 10:00 | 14.2°C | 13.2°C | 0 | 2.8 | SSW | 92 | 1014 |
| 06:00 | 11:00 | 14.1°C | 12.9°C | 0 | 3 | S | 92 | 1014 |
| 07:00 | 12:00 | 14.2°C | 12.7°C | 0 | 3.4 | S | 93 | 1014 |
| 08:00 | 13:00 | 15.7°C | 14.7°C | 0 | 3.5 | S | 92 | 1015 |
| 09:00 | 14:00 | 19.8°C | 19.8°C | 0.04 | 3.5 | S | 85 | 1014 |
| 10:00 | 15:00 | 21.7°C | 20.9°C | 0.05 | 4.5 | S | 74 | 1014 |
| 11:00 | 16:00 | 22.7°C | 22.1°C | 0 | 4.6 | SSW | 73 | 1014 |
| 12:00 | 17:00 | 23.8°C | 23°C | 0 | 5 | SSW | 68 | 1014 |
| 13:00 | 18:00 | 24.7°C | 23.7°C | 0 | 5.2 | SSW | 65 | 1013 |
| 14:00 | 19:00 | 25.3°C | 24.6°C | 0 | 5 | SW | 64 | 1013 |
| 15:00 | 20:00 | 25.9°C | 25.3°C | 0.03 | 5 | SW | 63 | 1013 |
| 16:00 | 21:00 | 25.8°C | 25.5°C | 1.16 | 5.2 | SW | 68 | 1012 |
| 17:00 | 22:00 | 23.6°C | 25°C | 0.74 | 3.5 | WSW | 82 | 1013 |
| 18:00 | 23:00 | 23.4°C | 25.4°C | 0.5 | 3.1 | SW | 86 | 1014 |
| 19:00 | 00:00 | 23.7°C | 25.8°C | 0 | 3.1 | SW | 86 | 1014 |
| 20:00 | 01:00 | 23.1°C | 24.8°C | 0 | 3 | SW | 84 | 1014 |
| 21:00 | 02:00 | 21.8°C | 23.8°C | 0.02 | 2.8 | WSW | 92 | 1015 |
| 22:00 | 03:00 | 20.8°C | 23.1°C | 0.01 | 2.6 | WSW | 100 | 1016 |
| 23:00 | 04:00 | 20.5°C | 23°C | 0 | 2 | SW | 99 | 1016 |
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
- Tomahawk — 45.500°, -89.750°, ERA5 grid cell center, 3.6 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 20 August 2017 specifically — not a monthly average. See the Tomahawk 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 (2026-07-19). Historical climate data for Tomahawk, United States (45.50°N, 89.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Tomahawk, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Tomahawk, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Tomahawk, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.