Home / Ithaca / 30 October 2021
Ithaca
United States · 30 October 2021
← 29 October 202131 October 2021 →
Average
9.8°C
low 7.1°C · high 12.7°C
Rainfall
11.5mm
rain recorded
Wind
3.4m/s
daily average
Humidity
92.6%
daily average
Cloud
88%
cover
Pressure
1002hPa
daily average
The temperature ranged from 7.1°C around 02:00 to 12.7°C around 16:00. Rain was recorded across 15 hours, from around 00:00 to 15:00 (11.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
51th percentile
Low temperature
75th percentile
Rainfall
89th percentile
Wind
47th 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 8.6°C, versus 9.8°C on this specific day.
Sun & daylight
Sunrise
07:37
Sunset
18:01
Day length
10h 24m
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 | 7.6°C | 5.6°C | 1.76 | 1.6 | E | 87 | 1005 |
| 01:00 | 05:00 | 7.2°C | 4.2°C | 0.74 | 2.9 | E | 91 | 1004 |
| 02:00 | 06:00 | 7.1°C | 3.7°C | 0.22 | 3.5 | E | 92 | 1004 |
| 03:00 | 07:00 | 7.3°C | 3.7°C | 0.1 | 3.7 | E | 91 | 1003 |
| 04:00 | 08:00 | 7.5°C | 4°C | 0.08 | 3.8 | E | 92 | 1002 |
| 05:00 | 09:00 | 8°C | 4.6°C | 0.75 | 3.8 | ESE | 92 | 1002 |
| 06:00 | 10:00 | 8.1°C | 5.6°C | 1.13 | 2.6 | E | 93 | 1002 |
| 07:00 | 11:00 | 8.3°C | 5.7°C | 0.45 | 2.7 | E | 93 | 1002 |
| 08:00 | 12:00 | 8.3°C | 5.5°C | 1.39 | 3.2 | ESE | 94 | 1002 |
| 09:00 | 13:00 | 8.6°C | 5.4°C | 1.26 | 3.8 | ESE | 95 | 1003 |
| 10:00 | 14:00 | 9.2°C | 5.8°C | 1.24 | 4.3 | SE | 95 | 1003 |
| 11:00 | 15:00 | 9.8°C | 6.4°C | 1.01 | 4.6 | SE | 96 | 1003 |
| 12:00 | 16:00 | 10.3°C | 7.1°C | 0.37 | 4.4 | SE | 95 | 1003 |
| 13:00 | 17:00 | 11.2°C | 8.4°C | 0.36 | 4.1 | SE | 93 | 1002 |
| 14:00 | 18:00 | 11.5°C | 8.4°C | 0.4 | 4.9 | SE | 97 | 1002 |
| 15:00 | 19:00 | 11.9°C | 9.1°C | 0.17 | 4.6 | SE | 95 | 1001 |
| 16:00 | 20:00 | 12.7°C | 10.3°C | 0.02 | 4 | SE | 91 | 1001 |
| 17:00 | 21:00 | 12.1°C | 10°C | 0.01 | 3.2 | SE | 90 | 1001 |
| 18:00 | 22:00 | 12.1°C | 10°C | 0.02 | 3.1 | SE | 87 | 1002 |
| 19:00 | 23:00 | 11.9°C | 10.1°C | 0.02 | 2.7 | SE | 88 | 1002 |
| 20:00 | 00:00 | 11.3°C | 9.4°C | 0 | 2.7 | SE | 92 | 1002 |
| 21:00 | 01:00 | 11.1°C | 9.4°C | 0 | 2.5 | SE | 93 | 1002 |
| 22:00 | 02:00 | 10.9°C | 9.1°C | 0.01 | 2.6 | SE | 94 | 1002 |
| 23:00 | 03:00 | 10.5°C | 8.8°C | 0.01 | 2.5 | SE | 95 | 1002 |
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
- 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 30 October 2021 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.