Home / Willow Street / 1 September 2021
Willow Street
United States · 1 September 2021
← 31 August 20212 September 2021 →
Average
21.3°C
low 17.6° · high 23.3°
Rainfall
83.4mm
rain recorded
Wind
4.1m/s
daily average
Humidity
89.9%
daily average
Cloud
100%
cover
Pressure
1005hPa
daily average
The temperature ranged from 17.6°C around 23:00 to 23.3°C around 00:00. Rain was recorded across 23 hours, from around 00:00 to 22:00 (83.4mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
13th percentile
Low temperature
42th percentile
Rainfall
100th percentile
Wind
99th 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 22.7°C, versus 21.3°C on this specific day.
Sun & daylight
Sunrise
06:33
Sunset
19:35
Day length
13h 3m
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 | 23.3 | 26.1 | 0.12 | 0.8 | ESE | 79 | 1009 |
| 01:00 | 05:00 | 23 | 26.1 | 0.1 | 0.8 | SSE | 83 | 1009 |
| 02:00 | 06:00 | 22.7 | 25.5 | 0.43 | 1.2 | SE | 83 | 1009 |
| 03:00 | 07:00 | 22.4 | 25.4 | 0.43 | 1 | ENE | 87 | 1009 |
| 04:00 | 08:00 | 22.1 | 24.5 | 0.62 | 2.3 | ENE | 91 | 1008 |
| 05:00 | 09:00 | 21.7 | 23.8 | 2.44 | 2.8 | ENE | 94 | 1008 |
| 06:00 | 10:00 | 20.6 | 21.5 | 3.09 | 3.3 | ENE | 91 | 1008 |
| 07:00 | 11:00 | 20.4 | 21 | 2.73 | 3.9 | ENE | 92 | 1008 |
| 08:00 | 12:00 | 20.6 | 20.9 | 1.71 | 4.6 | E | 94 | 1007 |
| 09:00 | 13:00 | 20.7 | 21.4 | 1.09 | 4 | E | 93 | 1007 |
| 10:00 | 14:00 | 20.9 | 22.3 | 0.93 | 3 | ENE | 91 | 1007 |
| 11:00 | 15:00 | 21.4 | 22.3 | 1.08 | 3.8 | NE | 90 | 1007 |
| 12:00 | 16:00 | 21.9 | 22.9 | 1.41 | 3.9 | NE | 90 | 1006 |
| 13:00 | 17:00 | 22 | 22.8 | 1.26 | 4.5 | NE | 92 | 1006 |
| 14:00 | 18:00 | 22.5 | 22.9 | 1.78 | 5.5 | ENE | 92 | 1004 |
| 15:00 | 19:00 | 22.7 | 22.7 | 5.77 | 6.5 | ENE | 93 | 1002 |
| 16:00 | 20:00 | 23.1 | 23 | 5.94 | 6.4 | E | 91 | 1000 |
| 17:00 | 21:00 | 23.2 | 24.2 | 10.02 | 4.9 | ESE | 90 | 1000 |
| 18:00 | 22:00 | 21.9 | 25 | 17.49 | 1.9 | E | 97 | 999 |
| 19:00 | 23:00 | 21 | 22 | 16.51 | 3.9 | NNW | 93 | 1000 |
| 20:00 | 00:00 | 18.8 | 16.7 | 6.17 | 6.3 | N | 88 | 1001 |
| 21:00 | 01:00 | 18 | 14.5 | 1.89 | 7.7 | NNE | 87 | 1003 |
| 22:00 | 02:00 | 17.9 | 13.6 | 0.38 | 8.8 | NNE | 87 | 1003 |
| 23:00 | 03:00 | 17.6 | 14.3 | 0.02 | 7.1 | NNE | 87 | 1004 |
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 1 September 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.