Home / Prosper / 21 October 2017
Prosper
United States · 21 October 2017
← 20 October 201722 October 2017 →
Average
24.9°C
low 21.4°C · high 30.3°C
Rainfall
13.4mm
rain recorded
Wind
5.6m/s
daily average
Humidity
73.3%
daily average
Cloud
91%
cover
Pressure
1012hPa
daily average
The temperature ranged from 21.4°C around 04:00 to 30.3°C around 16:00. Rain was recorded across 6 hours, from around 09:00 to 23:00 (13.4mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
85th percentile
Low temperature
96th percentile
Rainfall
87th percentile
Wind
89th 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 18.8°C, versus 24.9°C on this specific day.
Sun & daylight
Sunrise
07:36
Sunset
18:46
Day length
11h 10m
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 | 21.9°C | 20.6°C | 0 | 7.2 | SSE | 89 | 1013 |
| 01:00 | 06:00 | 21.6°C | 20.1°C | 0 | 6.8 | SSE | 87 | 1013 |
| 02:00 | 07:00 | 21.6°C | 20.5°C | 0 | 6.4 | SSE | 86 | 1013 |
| 03:00 | 08:00 | 21.6°C | 20.8°C | 0 | 5.9 | SSE | 88 | 1012 |
| 04:00 | 09:00 | 21.4°C | 20.9°C | 0 | 5.7 | SSE | 90 | 1012 |
| 05:00 | 10:00 | 21.8°C | 22°C | 0 | 5.2 | SSE | 91 | 1012 |
| 06:00 | 11:00 | 21.9°C | 21.8°C | 0.02 | 5.6 | SSE | 91 | 1012 |
| 07:00 | 12:00 | 22°C | 22°C | 0.03 | 5.6 | SSE | 91 | 1012 |
| 08:00 | 13:00 | 22°C | 22.6°C | 0.06 | 4.7 | SSE | 91 | 1012 |
| 09:00 | 14:00 | 22.2°C | 22.4°C | 0.11 | 5.3 | SSE | 90 | 1013 |
| 10:00 | 15:00 | 23.4°C | 22.7°C | 0.11 | 5.5 | SSE | 75 | 1014 |
| 11:00 | 16:00 | 24.5°C | 23.3°C | 0.06 | 6 | S | 69 | 1013 |
| 12:00 | 17:00 | 25.9°C | 24.5°C | 0.05 | 6 | S | 62 | 1013 |
| 13:00 | 18:00 | 26.7°C | 25.2°C | 0.02 | 6.5 | S | 61 | 1012 |
| 14:00 | 19:00 | 27.8°C | 26.2°C | 0.13 | 6.8 | S | 58 | 1011 |
| 15:00 | 20:00 | 29.3°C | 27.4°C | 0.05 | 6.8 | S | 52 | 1010 |
| 16:00 | 21:00 | 30.3°C | 27.8°C | 0 | 6.7 | S | 43 | 1010 |
| 17:00 | 22:00 | 29.7°C | 29.3°C | 0 | 5.6 | S | 55 | 1010 |
| 18:00 | 23:00 | 29.6°C | 29°C | 0 | 5.5 | SSE | 53 | 1009 |
| 19:00 | 00:00 | 28.3°C | 26.5°C | 0 | 6.1 | S | 51 | 1010 |
| 20:00 | 01:00 | 28.1°C | 27.7°C | 0 | 4.2 | S | 53 | 1010 |
| 21:00 | 02:00 | 27.5°C | 28.2°C | 0.49 | 3.9 | SSE | 62 | 1009 |
| 22:00 | 03:00 | 25°C | 27.9°C | 5.03 | 2.8 | SSW | 84 | 1011 |
| 23:00 | 04:00 | 24.3°C | 27.1°C | 7.19 | 2.9 | W | 88 | 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
- Prosper — 33.250°, -96.750°, ERA5 grid cell center, 5.0 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 21 October 2017 specifically — not a monthly average. See the Prosper 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 (2026-07-19). Historical climate data for Prosper, United States (33.25°N, 96.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Prosper, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Prosper, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Prosper, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.