Guymon
United States · 21 May 2021
Average
22.1°C
low 17°C · high 28.5°C
Rainfall
0mm
dry day
Wind
8.7m/s
daily average
Humidity
67.1%
daily average
Cloud
28%
cover
Pressure
1012hPa
daily average
The temperature ranged from 17°C around 07:00 to 28.5°C around 16:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
64th percentile
Low temperature
91th percentile
Rainfall
41th percentile
Wind
100th 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 19.5°C, versus 22.1°C on this specific day.
Sun & daylight
Sunrise
06:33
Sunset
20:51
Day length
14h 18m
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 | 18.8°C | 13.9°C | 0 | 9.1 | SSE | 76 | 1010 |
| 01:00 | 06:00 | 18.6°C | 14.1°C | 0 | 8.7 | SSE | 79 | 1010 |
| 02:00 | 07:00 | 18.2°C | 14.1°C | 0 | 8.3 | SSE | 82 | 1011 |
| 03:00 | 08:00 | 17.8°C | 13.9°C | 0 | 7.9 | S | 85 | 1011 |
| 04:00 | 09:00 | 17.5°C | 14.1°C | 0 | 7.5 | S | 89 | 1011 |
| 05:00 | 10:00 | 17.3°C | 13.3°C | 0 | 7.7 | S | 83 | 1011 |
| 06:00 | 11:00 | 17°C | 13.6°C | 0 | 6.8 | S | 84 | 1011 |
| 07:00 | 12:00 | 17°C | 14°C | 0 | 6.2 | S | 84 | 1012 |
| 08:00 | 13:00 | 17.3°C | 14.6°C | 0 | 5.8 | SSE | 82 | 1013 |
| 09:00 | 14:00 | 18.6°C | 15.2°C | 0 | 7.1 | SSE | 78 | 1014 |
| 10:00 | 15:00 | 22°C | 17.7°C | 0 | 8.6 | S | 65 | 1014 |
| 11:00 | 16:00 | 23.3°C | 18.9°C | 0 | 8.8 | SSE | 61 | 1014 |
| 12:00 | 17:00 | 25.4°C | 21.2°C | 0 | 8.9 | SSE | 57 | 1014 |
| 13:00 | 18:00 | 26°C | 21.5°C | 0 | 9.3 | SSE | 55 | 1014 |
| 14:00 | 19:00 | 26.7°C | 21.9°C | 0 | 9.8 | SSE | 53 | 1014 |
| 15:00 | 20:00 | 27.4°C | 22.2°C | 0 | 10.2 | SSE | 49 | 1013 |
| 16:00 | 21:00 | 28.5°C | 23°C | 0 | 10.6 | SSE | 47 | 1012 |
| 17:00 | 22:00 | 27.3°C | 21.6°C | 0 | 10.7 | SSE | 48 | 1011 |
| 18:00 | 23:00 | 27.1°C | 21.3°C | 0 | 10.7 | SE | 48 | 1011 |
| 19:00 | 00:00 | 26.4°C | 21°C | 0 | 10 | SE | 50 | 1011 |
| 20:00 | 01:00 | 25.6°C | 20.8°C | 0 | 9.2 | SE | 52 | 1012 |
| 21:00 | 02:00 | 23.8°C | 19.4°C | 0 | 8.8 | SSE | 59 | 1013 |
| 22:00 | 03:00 | 21.3°C | 17.2°C | 0 | 8.6 | SSE | 72 | 1016 |
| 23:00 | 04:00 | 21.1°C | 16.9°C | 0 | 8.9 | SSE | 72 | 1017 |
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
- Guymon — 36.750°, -101.500°, ERA5 grid cell center, 7.7 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 21 May 2021 specifically — not a monthly average. See the Guymon 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 (2026-07-21). Historical climate data for Guymon, United States (36.75°N, 101.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Guymon, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Guymon, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Guymon, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.