Roundup
United States · 3 July 2021
Average
29.4°C
low 21.7°C · high 37.2°C
Rainfall
0.7mm
dry day
Wind
2.6m/s
daily average
Humidity
28.4%
daily average
Cloud
53%
cover
Pressure
1007hPa
daily average
The temperature ranged from 21.7°C around 06:00 to 37.2°C around 17:00. Rain was recorded for one hour, around 19:00 (0.7mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
99th percentile
Low temperature
99th percentile
Rainfall
63th percentile
Wind
45th 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 20.9°C, versus 29.4°C on this specific day.
Sun & daylight
Sunrise
05:26
Sunset
21:09
Day length
15h 43m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Denver.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 06:00 | 27°C | 24.9°C | 0 | 3 | W | 35 | 1006 |
| 01:00 | 07:00 | 27°C | 25°C | 0 | 3 | W | 34 | 1007 |
| 02:00 | 08:00 | 24.8°C | 22.8°C | 0 | 3.1 | W | 41 | 1006 |
| 03:00 | 09:00 | 22.6°C | 20.7°C | 0 | 3 | W | 47 | 1007 |
| 04:00 | 10:00 | 22°C | 19.7°C | 0 | 3.2 | W | 45 | 1006 |
| 05:00 | 11:00 | 22.1°C | 19.9°C | 0 | 2.8 | W | 43 | 1007 |
| 06:00 | 12:00 | 21.7°C | 19.5°C | 0 | 2.6 | W | 42 | 1008 |
| 07:00 | 13:00 | 22.3°C | 20.2°C | 0 | 2.5 | W | 42 | 1008 |
| 08:00 | 14:00 | 26.1°C | 24.7°C | 0 | 1.8 | WNW | 35 | 1009 |
| 09:00 | 15:00 | 32°C | 30.5°C | 0 | 1.6 | NNW | 23 | 1008 |
| 10:00 | 16:00 | 32.5°C | 31.5°C | 0 | 1.1 | N | 23 | 1008 |
| 11:00 | 17:00 | 34.2°C | 33.3°C | 0 | 0.3 | WSW | 19 | 1008 |
| 12:00 | 18:00 | 34.7°C | 32.8°C | 0 | 1.9 | WSW | 19 | 1007 |
| 13:00 | 19:00 | 35°C | 32.7°C | 0 | 2.7 | WSW | 19 | 1007 |
| 14:00 | 20:00 | 35.1°C | 31.8°C | 0 | 3.1 | W | 16 | 1006 |
| 15:00 | 21:00 | 35.8°C | 32°C | 0 | 3.2 | W | 13 | 1006 |
| 16:00 | 22:00 | 36.4°C | 33.1°C | 0 | 3.1 | W | 15 | 1004 |
| 17:00 | 23:00 | 37.2°C | 34.3°C | 0 | 2.4 | W | 13 | 1004 |
| 18:00 | 00:00 | 36.2°C | 32.3°C | 0 | 3.8 | NW | 14 | 1005 |
| 19:00 | 01:00 | 32.4°C | 29.6°C | 0.68 | 3.5 | NNE | 23 | 1006 |
| 20:00 | 02:00 | 31°C | 28.5°C | 0 | 3 | ENE | 24 | 1006 |
| 21:00 | 03:00 | 27.4°C | 25.7°C | 0 | 2.2 | E | 32 | 1007 |
| 22:00 | 04:00 | 25.1°C | 23.1°C | 0 | 2.1 | NE | 33 | 1008 |
| 23:00 | 05:00 | 24°C | 21.1°C | 0 | 3.2 | NNE | 34 | 1008 |
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
- Roundup — 46.500°, -108.500°, ERA5 grid cell center, 6.9 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 3 July 2021 specifically — not a monthly average. See the Roundup 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 (2026-07-20). Historical climate data for Roundup, United States (46.50°N, 108.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Roundup, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Roundup, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Roundup, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.