Orem
United States · 21 August 2018
← 20 August 201822 August 2018 →
Average
21.1°C
low 16.1°C · high 27.7°C
Rainfall
8.1mm
rain recorded
Wind
1.6m/s
daily average
Humidity
56.6%
daily average
Cloud
69%
cover
Pressure
1013hPa
daily average
The temperature ranged from 16.1°C around 06:00 to 27.7°C around 15:00. Rain was recorded across 6 hours, from around 12:00 to 23:00 (8.1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
14th percentile
Low temperature
61th percentile
Rainfall
99th percentile
Wind
50th 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 23.3°C, versus 21.1°C on this specific day.
Sun & daylight
Sunrise
06:44
Sunset
20:15
Day length
13h 31m
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 | 21.9°C | 19.2°C | 0 | 2.1 | ENE | 32 | 1010 |
| 01:00 | 07:00 | 19.1°C | 16.9°C | 0.07 | 1.8 | E | 42 | 1010 |
| 02:00 | 08:00 | 18.9°C | 17°C | 0.03 | 1.9 | E | 47 | 1010 |
| 03:00 | 09:00 | 18.9°C | 17.4°C | 0 | 1.7 | E | 51 | 1011 |
| 04:00 | 10:00 | 17°C | 17.2°C | 0 | 1.6 | ESE | 84 | 1013 |
| 05:00 | 11:00 | 16.5°C | 16.7°C | 0 | 1.7 | ENE | 86 | 1013 |
| 06:00 | 12:00 | 16.1°C | 16.4°C | 0 | 1.5 | E | 88 | 1013 |
| 07:00 | 13:00 | 16.1°C | 16.5°C | 0 | 1.3 | E | 88 | 1013 |
| 08:00 | 14:00 | 18°C | 18.4°C | 0 | 1.2 | ESE | 77 | 1014 |
| 09:00 | 15:00 | 21.1°C | 20.8°C | 0 | 1.1 | SE | 55 | 1015 |
| 10:00 | 16:00 | 22.6°C | 21.3°C | 0 | 1.2 | SE | 39 | 1015 |
| 11:00 | 17:00 | 25.2°C | 23.6°C | 0.01 | 1.9 | SSE | 35 | 1015 |
| 12:00 | 18:00 | 25.3°C | 24.6°C | 0.32 | 1 | SSE | 37 | 1016 |
| 13:00 | 19:00 | 24.5°C | 24.1°C | 0.01 | 0.8 | ESE | 40 | 1015 |
| 14:00 | 20:00 | 26.2°C | 25°C | 0.02 | 1.2 | SE | 33 | 1014 |
| 15:00 | 21:00 | 27.7°C | 25.6°C | 0.04 | 2 | SSE | 28 | 1013 |
| 16:00 | 22:00 | 27.7°C | 26.2°C | 0.04 | 2.1 | SSE | 33 | 1011 |
| 17:00 | 23:00 | 22.6°C | 21.8°C | 1.66 | 2.8 | S | 58 | 1011 |
| 18:00 | 00:00 | 23.6°C | 23°C | 0.05 | 2.5 | SW | 54 | 1013 |
| 19:00 | 01:00 | 23.7°C | 23.9°C | 0 | 0.6 | SE | 48 | 1014 |
| 20:00 | 02:00 | 21.6°C | 21.3°C | 0.7 | 2 | SE | 60 | 1015 |
| 21:00 | 03:00 | 19°C | 19.2°C | 2.78 | 1.8 | ESE | 77 | 1016 |
| 22:00 | 04:00 | 17.2°C | 17.1°C | 2.07 | 1.9 | ESE | 81 | 1016 |
| 23:00 | 05:00 | 17°C | 17.2°C | 0.33 | 1.7 | ESE | 85 | 1017 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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
- Orem — 40.250°, -111.750°, ERA5 grid cell center, 7.0 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 21 August 2018 specifically — not a monthly average. See the Orem 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 Orem, United States (40.25°N, 111.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Orem, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Orem, 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 Orem, 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.