Home / Tomahawk / 31 August 2018
Tomahawk
United States · 31 August 2018
← 30 August 20181 September 2018 →
Average
19.7°C
low 14.3° · high 24.3°
Rainfall
1mm
dry day
Wind
5.1m/s
daily average
Humidity
78.8%
daily average
Cloud
73%
cover
Pressure
1014hPa
daily average
The temperature ranged from 14.3°C around 01:00 to 24.3°C around 17:00. Rain was recorded across 4 hours, from around 03:00 to 15:00 (1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
76th percentile
Low temperature
72th percentile
Rainfall
61th percentile
Wind
93th 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 16.8°C, versus 19.7°C on this specific day.
Sun & daylight
Sunrise
06:19
Sunset
19:38
Day length
13h 19m
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 | 14.3 | 11.3 | 0.01 | 5.2 | SSE | 86 | 1018 |
| 01:00 | 06:00 | 14.3 | 11.1 | 0 | 5.3 | SSE | 85 | 1018 |
| 02:00 | 07:00 | 14.3 | 11.1 | 0 | 5.4 | SSE | 85 | 1018 |
| 03:00 | 08:00 | 15.2 | 12.3 | 0.37 | 5.2 | S | 83 | 1017 |
| 04:00 | 09:00 | 15.5 | 12.7 | 0.2 | 5.1 | S | 84 | 1017 |
| 05:00 | 10:00 | 14.9 | 12 | 0.03 | 5.3 | S | 86 | 1016 |
| 06:00 | 11:00 | 15.2 | 12.6 | 0 | 4.9 | S | 84 | 1016 |
| 07:00 | 12:00 | 15.3 | 12.7 | 0 | 4.8 | S | 84 | 1016 |
| 08:00 | 13:00 | 16.1 | 14.1 | 0 | 4.5 | S | 84 | 1016 |
| 09:00 | 14:00 | 18 | 16.2 | 0 | 4.8 | S | 81 | 1015 |
| 10:00 | 15:00 | 20.1 | 18.9 | 0 | 4.3 | S | 75 | 1016 |
| 11:00 | 16:00 | 21.2 | 20.6 | 0 | 4 | S | 75 | 1016 |
| 12:00 | 17:00 | 22.2 | 21.4 | 0 | 4.7 | S | 74 | 1015 |
| 13:00 | 18:00 | 23.1 | 21.8 | 0 | 5.7 | S | 72 | 1014 |
| 14:00 | 19:00 | 23.6 | 21.7 | 0.1 | 6.7 | S | 72 | 1013 |
| 15:00 | 20:00 | 24 | 22.3 | 0.12 | 6.7 | S | 72 | 1012 |
| 16:00 | 21:00 | 24.1 | 23 | 0.03 | 6.3 | S | 74 | 1012 |
| 17:00 | 22:00 | 24.3 | 24.4 | 0.07 | 4.6 | S | 74 | 1012 |
| 18:00 | 23:00 | 24.2 | 23.9 | 0.04 | 5.1 | S | 73 | 1011 |
| 19:00 | 00:00 | 23.8 | 24 | 0.01 | 4.3 | S | 74 | 1011 |
| 20:00 | 01:00 | 23.1 | 23.5 | 0 | 3.6 | S | 74 | 1011 |
| 21:00 | 02:00 | 22.8 | 22.9 | 0 | 4 | SSE | 76 | 1012 |
| 22:00 | 03:00 | 22.2 | 22 | 0 | 5.1 | SSE | 83 | 1011 |
| 23:00 | 04:00 | 22.1 | 21.4 | 0 | 5.6 | S | 83 | 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
- 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 31 August 2018 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 (2026-07-18). 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 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Tomahawk, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 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 2026-07-18},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.