Home / Willow Street / 31 August 2021
Willow Street
United States · 31 August 2021
← 30 August 20211 September 2021 →
Average
24.6°C
low 22.1° · high 27.6°
Rainfall
0.4mm
dry day
Wind
1.4m/s
daily average
Humidity
74.9%
daily average
Cloud
100%
cover
Pressure
1010hPa
daily average
The temperature ranged from 22.1°C around 05:00 to 27.6°C around 13:00. Rain was recorded across 2 hours, from around 22:00 to 23:00 (0.4mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
49th percentile
Low temperature
83th percentile
Rainfall
67th percentile
Wind
0th 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 22.8°C, versus 24.6°C on this specific day.
Sun & daylight
Sunrise
06:32
Sunset
19:37
Day length
13h 5m
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 | 23.5 | 26.4 | 0 | 2.1 | W | 89 | 1010 |
| 01:00 | 05:00 | 23.2 | 26 | 0 | 2.1 | W | 89 | 1010 |
| 02:00 | 06:00 | 23.1 | 26.2 | 0 | 1.9 | W | 90 | 1010 |
| 03:00 | 07:00 | 22.8 | 25.8 | 0 | 2 | WNW | 91 | 1010 |
| 04:00 | 08:00 | 22.5 | 25.4 | 0 | 2.1 | NW | 93 | 1010 |
| 05:00 | 09:00 | 22.1 | 24.8 | 0 | 2 | NW | 92 | 1009 |
| 06:00 | 10:00 | 22.6 | 25.4 | 0 | 2 | NNW | 91 | 1010 |
| 07:00 | 11:00 | 22.4 | 25.2 | 0 | 1.8 | NNW | 90 | 1010 |
| 08:00 | 12:00 | 22.9 | 26 | 0 | 1.6 | NNW | 90 | 1011 |
| 09:00 | 13:00 | 23.8 | 27 | 0 | 1.1 | NNW | 83 | 1010 |
| 10:00 | 14:00 | 25 | 28 | 0 | 1 | NW | 75 | 1011 |
| 11:00 | 15:00 | 26.6 | 29.6 | 0 | 0.6 | WNW | 65 | 1011 |
| 12:00 | 16:00 | 27.1 | 29.7 | 0 | 0.9 | WNW | 61 | 1010 |
| 13:00 | 17:00 | 27.6 | 29.6 | 0 | 1.3 | WNW | 58 | 1010 |
| 14:00 | 18:00 | 27 | 29.3 | 0.04 | 1.4 | W | 62 | 1010 |
| 15:00 | 19:00 | 27 | 29.2 | 0.05 | 1.1 | W | 59 | 1010 |
| 16:00 | 20:00 | 26.8 | 28.9 | 0.03 | 0.8 | W | 58 | 1009 |
| 17:00 | 21:00 | 26.5 | 28.5 | 0 | 0.5 | W | 56 | 1009 |
| 18:00 | 22:00 | 26 | 27.5 | 0 | 1.1 | WNW | 57 | 1009 |
| 19:00 | 23:00 | 25.7 | 27.4 | 0 | 1.2 | NNW | 61 | 1009 |
| 20:00 | 00:00 | 24.8 | 27.3 | 0 | 0.9 | NNE | 70 | 1009 |
| 21:00 | 01:00 | 24.4 | 27.2 | 0.02 | 0.7 | SSE | 72 | 1009 |
| 22:00 | 02:00 | 24.2 | 26.5 | 0.11 | 1.1 | SSE | 72 | 1010 |
| 23:00 | 03:00 | 23.6 | 26.1 | 0.17 | 1.2 | SE | 76 | 1009 |
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
- Willow Street — 40.000°, -76.250°, ERA5 grid cell center, 3.2 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 31 August 2021 specifically — not a monthly average. See the Willow Street 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 Willow Street, United States (40.00°N, 76.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Willow Street, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Willow Street, 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 Willow Street, 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.