Home / Tomahawk / 18 August 2019
Tomahawk
United States · 18 August 2019
← 17 August 201919 August 2019 →
Average
18.6°C
low 15.3° · high 21.7°
Rainfall
12.9mm
rain recorded
Wind
4.3m/s
daily average
Humidity
82.8%
daily average
Cloud
65%
cover
Pressure
1007hPa
daily average
The temperature ranged from 15.3°C around 23:00 to 21.7°C around 17:00. Rain was recorded across 10 hours, from around 04:00 to 14:00 (12.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
19th percentile
Low temperature
59th percentile
Rainfall
93th percentile
Wind
90th 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 18.6°C on this specific day.
Sun & daylight
Sunrise
06:03
Sunset
20:01
Day length
13h 59m
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 | 17.7 | 17.4 | 0 | 3 | SSE | 88 | 1010 |
| 01:00 | 06:00 | 17.3 | 16.7 | 0 | 3.3 | SSE | 88 | 1009 |
| 02:00 | 07:00 | 17.1 | 16.4 | 0 | 3.5 | SSE | 89 | 1008 |
| 03:00 | 08:00 | 17.3 | 16.4 | 0.05 | 3.9 | SSE | 89 | 1008 |
| 04:00 | 09:00 | 17 | 16 | 0.34 | 4.2 | SSE | 92 | 1008 |
| 05:00 | 10:00 | 17.3 | 17.8 | 0.3 | 2.3 | S | 94 | 1005 |
| 06:00 | 11:00 | 17.4 | 16.7 | 1.39 | 4.1 | SSE | 95 | 1004 |
| 07:00 | 12:00 | 17.5 | 16.5 | 2.37 | 4.7 | SSE | 96 | 1004 |
| 08:00 | 13:00 | 17.5 | 17.2 | 3.59 | 4.1 | S | 98 | 1003 |
| 09:00 | 14:00 | 17.9 | 17 | 3.36 | 5.1 | SSW | 98 | 1003 |
| 10:00 | 15:00 | 18.7 | 17.6 | 0.78 | 5.1 | SW | 90 | 1003 |
| 11:00 | 16:00 | 19.7 | 18.9 | 0.05 | 4.9 | W | 88 | 1004 |
| 12:00 | 17:00 | 20.2 | 19.1 | 0.29 | 5.5 | WNW | 86 | 1005 |
| 13:00 | 18:00 | 20.3 | 19 | 0.1 | 5.7 | WNW | 85 | 1006 |
| 14:00 | 19:00 | 20.7 | 19.4 | 0.14 | 5.9 | WNW | 86 | 1006 |
| 15:00 | 20:00 | 21 | 19.4 | 0.07 | 5.9 | WNW | 80 | 1007 |
| 16:00 | 21:00 | 20.9 | 19 | 0.07 | 5.6 | WNW | 75 | 1008 |
| 17:00 | 22:00 | 21.7 | 19 | 0.03 | 5.6 | WNW | 62 | 1008 |
| 18:00 | 23:00 | 21.3 | 19.1 | 0 | 4.7 | WNW | 61 | 1009 |
| 19:00 | 00:00 | 20.7 | 18.9 | 0 | 3.9 | WNW | 61 | 1009 |
| 20:00 | 01:00 | 19 | 17.2 | 0 | 3.3 | WNW | 62 | 1010 |
| 21:00 | 02:00 | 17.2 | 15.3 | 0 | 3.1 | WNW | 66 | 1011 |
| 22:00 | 03:00 | 15.9 | 14.5 | 0 | 3 | WNW | 79 | 1011 |
| 23:00 | 04:00 | 15.3 | 13.8 | 0 | 2.9 | WNW | 80 | 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 18 August 2019 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.