Guymon
United States · 21 May 2018
Average
20.2°C
low 11.6°C · high 29°C
Rainfall
0mm
dry day
Wind
4.8m/s
daily average
Humidity
58.3%
daily average
Cloud
43%
cover
Pressure
1015hPa
daily average
The temperature ranged from 11.6°C around 07:00 to 29°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
72th percentile
Low temperature
35th percentile
Rainfall
40th percentile
Wind
49th 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 19.2°C, versus 20.2°C on this specific day.
Sun & daylight
Sunrise
06:34
Sunset
20:51
Day length
14h 17m
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 | 15°C | 13.1°C | 0 | 2.5 | SSE | 68 | 1017 |
| 01:00 | 06:00 | 14.9°C | 13.2°C | 0 | 2.1 | SSE | 69 | 1017 |
| 02:00 | 07:00 | 15.1°C | 13.5°C | 0 | 2.1 | SE | 68 | 1017 |
| 03:00 | 08:00 | 14.5°C | 12.7°C | 0 | 2.3 | ESE | 70 | 1017 |
| 04:00 | 09:00 | 14.1°C | 12.3°C | 0 | 2.3 | ESE | 73 | 1017 |
| 05:00 | 10:00 | 11.9°C | 10.7°C | 0 | 1.9 | SE | 90 | 1017 |
| 06:00 | 11:00 | 11.8°C | 10.6°C | 0 | 2 | SE | 93 | 1017 |
| 07:00 | 12:00 | 11.6°C | 10.1°C | 0 | 2.5 | SE | 95 | 1017 |
| 08:00 | 13:00 | 12.2°C | 10.4°C | 0 | 3 | SE | 92 | 1018 |
| 09:00 | 14:00 | 15.6°C | 13.3°C | 0 | 4 | SSE | 77 | 1018 |
| 10:00 | 15:00 | 20.7°C | 17.1°C | 0 | 5.4 | S | 53 | 1017 |
| 11:00 | 16:00 | 22°C | 17.7°C | 0 | 6.8 | S | 51 | 1017 |
| 12:00 | 17:00 | 23.5°C | 18.6°C | 0 | 7.2 | S | 44 | 1016 |
| 13:00 | 18:00 | 25°C | 20.4°C | 0 | 7.1 | S | 42 | 1015 |
| 14:00 | 19:00 | 26.2°C | 21.7°C | 0 | 7 | SSW | 39 | 1014 |
| 15:00 | 20:00 | 28.1°C | 23.7°C | 0.01 | 6.8 | SSW | 35 | 1012 |
| 16:00 | 21:00 | 29°C | 24.6°C | 0 | 6.6 | SSW | 31 | 1012 |
| 17:00 | 22:00 | 28.6°C | 24.4°C | 0 | 6.6 | S | 34 | 1010 |
| 18:00 | 23:00 | 27.8°C | 22.4°C | 0.01 | 7 | S | 28 | 1009 |
| 19:00 | 00:00 | 26.7°C | 21.8°C | 0 | 6.7 | S | 33 | 1010 |
| 20:00 | 01:00 | 26°C | 22.3°C | 0 | 5.6 | S | 38 | 1010 |
| 21:00 | 02:00 | 24°C | 21°C | 0 | 5.4 | S | 49 | 1011 |
| 22:00 | 03:00 | 21.2°C | 18.7°C | 0 | 5.2 | S | 63 | 1011 |
| 23:00 | 04:00 | 20.4°C | 16.8°C | 0 | 6.6 | S | 64 | 1013 |
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 2018 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 (2026-07-18). 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 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Guymon, 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 Guymon, 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.