Home / Ithaca / 21 October 2020
Ithaca
United States · 21 October 2020
← 20 October 202022 October 2020 →
Average
15.4°C
low 8.9°C · high 21.8°C
Rainfall
2mm
rain recorded
Wind
3.7m/s
daily average
Humidity
87.4%
daily average
Cloud
98%
cover
Pressure
1022hPa
daily average
The temperature ranged from 8.9°C around 00:00 to 21.8°C around 14:00. Rain was recorded across 4 hours, from around 16:00 to 19:00 (2mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
90th percentile
Low temperature
76th percentile
Rainfall
67th percentile
Wind
61th 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 9.8°C, versus 15.4°C on this specific day.
Sun & daylight
Sunrise
07:26
Sunset
18:13
Day length
10h 47m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 8.9°C | 7.2°C | 0 | 1.8 | SE | 95 | 1025 |
| 01:00 | 05:00 | 9.1°C | 7.2°C | 0 | 2.3 | SE | 98 | 1024 |
| 02:00 | 06:00 | 9.4°C | 7.2°C | 0 | 2.9 | SSE | 98 | 1023 |
| 03:00 | 07:00 | 9.9°C | 7.4°C | 0 | 3.4 | SSE | 97 | 1023 |
| 04:00 | 08:00 | 10.7°C | 8.1°C | 0 | 4 | SSE | 98 | 1022 |
| 05:00 | 09:00 | 11.5°C | 8.8°C | 0 | 4.4 | SSE | 98 | 1021 |
| 06:00 | 10:00 | 13.7°C | 11.4°C | 0 | 4.6 | S | 96 | 1021 |
| 07:00 | 11:00 | 13.6°C | 10.9°C | 0 | 5.1 | S | 95 | 1021 |
| 08:00 | 12:00 | 13.7°C | 11°C | 0 | 5 | S | 94 | 1021 |
| 09:00 | 13:00 | 13.8°C | 11.1°C | 0 | 5.1 | S | 93 | 1021 |
| 10:00 | 14:00 | 15.6°C | 13°C | 0 | 5.1 | S | 86 | 1021 |
| 11:00 | 15:00 | 17.9°C | 15.6°C | 0 | 5.2 | S | 79 | 1021 |
| 12:00 | 16:00 | 20°C | 17.7°C | 0 | 5.4 | S | 71 | 1020 |
| 13:00 | 17:00 | 21.5°C | 19.1°C | 0 | 5.2 | S | 62 | 1019 |
| 14:00 | 18:00 | 21.8°C | 19.8°C | 0 | 5 | S | 64 | 1019 |
| 15:00 | 19:00 | 21.7°C | 19.9°C | 0 | 5.2 | SSW | 69 | 1019 |
| 16:00 | 20:00 | 20.8°C | 20.1°C | 0.23 | 3.9 | SW | 74 | 1019 |
| 17:00 | 21:00 | 19.3°C | 18.9°C | 0.77 | 3.4 | WSW | 81 | 1021 |
| 18:00 | 22:00 | 17.9°C | 18.1°C | 0.54 | 2.6 | WNW | 90 | 1021 |
| 19:00 | 23:00 | 17.1°C | 17.9°C | 0.4 | 1.7 | NW | 93 | 1022 |
| 20:00 | 00:00 | 16.7°C | 17.1°C | 0.03 | 1.9 | NNW | 91 | 1023 |
| 21:00 | 01:00 | 16°C | 15.9°C | 0 | 2.2 | NNW | 90 | 1024 |
| 22:00 | 02:00 | 14.6°C | 14.4°C | 0 | 1.9 | NNW | 93 | 1024 |
| 23:00 | 03:00 | 13.5°C | 13.2°C | 0 | 1.7 | N | 96 | 1024 |
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
- Ithaca — 42.500°, -76.500°, ERA5 grid cell center, 6.6 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 21 October 2020 specifically — not a monthly average. See the Ithaca 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 (2026-07-20). Historical climate data for Ithaca, United States (42.50°N, 76.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Ithaca, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Ithaca, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Ithaca, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.