Home / Delphi / 15 January 2021
Delphi
United States · 15 January 2021
← 14 January 202116 January 2021 →
Average
1.7°C
low -2.4°C · high 3.7°C
Rainfall
1.9mm
rain recorded
Wind
3.9m/s
daily average
Humidity
80.7%
daily average
Cloud
53%
cover
Pressure
1001hPa
daily average
The temperature ranged from -2.4°C around 23:00 to 3.7°C around 00:00. Rain was recorded across 5 hours, from around 00:00 to 17:00 (1.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
67th percentile
Low temperature
64th percentile
Rainfall
70th percentile
Wind
38th 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 -2.4°C, versus 1.7°C on this specific day.
Sun & daylight
Sunrise
08:08
Sunset
17:45
Day length
9h 37m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Indiana/Indianapolis.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 3.7°C | -1°C | 0.21 | 4.2 | SW | 87 | 1001 |
| 01:00 | 06:00 | 3.3°C | -1.4°C | 0.09 | 4.1 | SW | 87 | 1001 |
| 02:00 | 07:00 | 3.1°C | -1.8°C | 0.01 | 4.2 | SW | 85 | 1001 |
| 03:00 | 08:00 | 2.9°C | -2.1°C | 0.01 | 4.4 | SSW | 86 | 1001 |
| 04:00 | 09:00 | 2.5°C | -2.6°C | 0.01 | 4.5 | SSW | 84 | 1001 |
| 05:00 | 10:00 | 1.6°C | -3.2°C | 0.02 | 3.9 | SSW | 85 | 999 |
| 06:00 | 11:00 | 1.4°C | -3.5°C | 0.02 | 3.9 | SSW | 83 | 999 |
| 07:00 | 12:00 | 1.2°C | -3.9°C | 0 | 4.2 | SSW | 82 | 1000 |
| 08:00 | 13:00 | 1.1°C | -3.9°C | 0 | 4 | S | 82 | 999 |
| 09:00 | 14:00 | 1.4°C | -3.9°C | 0 | 4.5 | S | 81 | 1000 |
| 10:00 | 15:00 | 2°C | -3.4°C | 0.07 | 4.7 | S | 79 | 1000 |
| 11:00 | 16:00 | 2.7°C | -4.1°C | 0.21 | 6.5 | SSW | 73 | 1000 |
| 12:00 | 17:00 | 3.3°C | -3.6°C | 0.1 | 6.6 | SSW | 66 | 1000 |
| 13:00 | 18:00 | 3.4°C | -3.3°C | 0.1 | 6.1 | SSW | 63 | 999 |
| 14:00 | 19:00 | 3.3°C | -2.6°C | 0.06 | 5 | SSW | 63 | 999 |
| 15:00 | 20:00 | 3.2°C | -2°C | 0.07 | 4.2 | SSW | 68 | 1000 |
| 16:00 | 21:00 | 3.1°C | -1.8°C | 0.08 | 3.7 | SSW | 68 | 1001 |
| 17:00 | 22:00 | 1°C | -3.2°C | 0.68 | 2.8 | SSW | 83 | 1002 |
| 18:00 | 23:00 | 1.2°C | -2.5°C | 0.06 | 2.2 | S | 84 | 1003 |
| 19:00 | 00:00 | 0.8°C | -2.6°C | 0.04 | 1.8 | S | 88 | 1003 |
| 20:00 | 01:00 | -0.2°C | -4°C | 0.01 | 2.3 | S | 89 | 1003 |
| 21:00 | 02:00 | -1.5°C | -5.1°C | 0 | 1.8 | S | 90 | 1003 |
| 22:00 | 03:00 | -2°C | -5.7°C | 0 | 1.8 | S | 90 | 1004 |
| 23:00 | 04:00 | -2.4°C | -6.1°C | 0 | 1.8 | SSW | 90 | 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
- Delphi — 40.500°, -86.750°, ERA5 grid cell center, 11.6 km from requested point
- Time zone
- America/Indiana/Indianapolis
- What's shown here
- The hourly and daily record for 15 January 2021 specifically — not a monthly average. See the Delphi 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 Delphi, United States (40.50°N, 86.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Delphi, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Delphi, 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 Delphi, 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.