Home / Riverdale / 17 September 2020
Riverdale
United States · 17 September 2020
← 16 September 202018 September 2020 →
Average
21.6°C
low 19.8° · high 24.7°
Rainfall
122.9mm
rain recorded
Wind
5.1m/s
daily average
Humidity
87.4%
daily average
Cloud
88%
cover
Pressure
1008hPa
daily average
The temperature ranged from 19.8°C around 00:00 to 24.7°C around 17:00. Rain was recorded across 14 hours, from around 00:00 to 13:00 (122.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
10th percentile
Low temperature
51th percentile
Rainfall
100th percentile
Wind
98th 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 23.8°C, versus 21.6°C on this specific day.
Sun & daylight
Sunrise
07:23
Sunset
19:40
Day length
12h 18m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 19.8 | 18 | 8.71 | 7.1 | ENE | 94 | 1012 |
| 01:00 | 05:00 | 20 | 18.1 | 13.8 | 7.5 | ENE | 95 | 1011 |
| 02:00 | 06:00 | 20.1 | 17.5 | 15.16 | 8.5 | NE | 95 | 1010 |
| 03:00 | 07:00 | 20.2 | 17 | 11.44 | 9.3 | NE | 95 | 1008 |
| 04:00 | 08:00 | 20.4 | 18.6 | 16.71 | 7.6 | NE | 96 | 1006 |
| 05:00 | 09:00 | 20.5 | 21 | 17.11 | 4.7 | NE | 98 | 1006 |
| 06:00 | 10:00 | 20 | 19.4 | 14.77 | 5.4 | NE | 93 | 1007 |
| 07:00 | 11:00 | 20.1 | 19.7 | 10.33 | 5.1 | NE | 93 | 1007 |
| 08:00 | 12:00 | 20.2 | 19.4 | 7.05 | 5.7 | NE | 94 | 1006 |
| 09:00 | 13:00 | 20.3 | 19.5 | 4.25 | 6.1 | NE | 94 | 1006 |
| 10:00 | 14:00 | 20.4 | 19.3 | 1.92 | 6.3 | NE | 94 | 1007 |
| 11:00 | 15:00 | 21.6 | 21.1 | 0.86 | 5.9 | NE | 90 | 1007 |
| 12:00 | 16:00 | 21.7 | 21.9 | 0.56 | 5 | NNE | 90 | 1008 |
| 13:00 | 17:00 | 21.7 | 22.2 | 0.13 | 4.6 | NNE | 90 | 1007 |
| 14:00 | 18:00 | 22.3 | 23.2 | 0 | 4.1 | NNE | 87 | 1007 |
| 15:00 | 19:00 | 23.2 | 22.7 | 0.05 | 5.5 | NNE | 80 | 1007 |
| 16:00 | 20:00 | 24.6 | 24.8 | 0.06 | 4.3 | N | 71 | 1007 |
| 17:00 | 21:00 | 24.7 | 24.8 | 0 | 4 | NNW | 68 | 1007 |
| 18:00 | 22:00 | 23.3 | 24.8 | 0 | 3.3 | N | 84 | 1008 |
| 19:00 | 23:00 | 23.2 | 25 | 0.01 | 2.7 | NNE | 83 | 1008 |
| 20:00 | 00:00 | 23.3 | 25.5 | 0 | 2 | N | 81 | 1008 |
| 21:00 | 01:00 | 23 | 24.7 | 0 | 1.9 | NW | 78 | 1009 |
| 22:00 | 02:00 | 22.6 | 23.7 | 0 | 2.7 | NW | 77 | 1009 |
| 23:00 | 03:00 | 21.7 | 22.1 | 0 | 3.4 | NW | 79 | 1009 |
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
- Riverdale — 33.500°, -84.500°, ERA5 grid cell center, 11.4 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 17 September 2020 specifically — not a monthly average. See the Riverdale 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 (2026-07-16). Historical climate data for Riverdale, United States (33.50°N, 84.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Riverdale, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Riverdale, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Riverdale, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-16},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.