Home / Algonquin / 15 May 2025
Algonquin
United States · 15 May 2025
Average
22.3°C
low 14.6°C · high 31.7°C
Rainfall
9.2mm
rain recorded
Wind
4.3m/s
daily average
Humidity
74.1%
daily average
Cloud
63%
cover
Pressure
1001hPa
daily average
The temperature ranged from 14.6°C around 03:00 to 31.7°C around 15:00. Rain was recorded across 4 hours, from around 11:00 to 19:00 (9.2mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
98th percentile
Low temperature
87th percentile
Rainfall
84th percentile
Wind
84th 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 15°C, versus 22.3°C on this specific day.
Sun & daylight
Sunrise
05:31
Sunset
20:07
Day length
14h 36m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 15.9°C | 15.1°C | 0 | 3.1 | ESE | 89 | 1005 |
| 01:00 | 06:00 | 15.8°C | 15°C | 0 | 3 | SE | 90 | 1005 |
| 02:00 | 07:00 | 15.4°C | 14.4°C | 0 | 3.1 | SE | 90 | 1004 |
| 03:00 | 08:00 | 14.6°C | 13.8°C | 0 | 2.8 | SE | 93 | 1004 |
| 04:00 | 09:00 | 14.8°C | 14°C | 0 | 2.7 | SE | 93 | 1004 |
| 05:00 | 10:00 | 16.3°C | 16°C | 0 | 2.6 | SE | 92 | 1003 |
| 06:00 | 11:00 | 16.3°C | 16.3°C | 0 | 2.3 | SE | 92 | 1004 |
| 07:00 | 12:00 | 16.8°C | 16.6°C | 0 | 2.8 | SE | 91 | 1003 |
| 08:00 | 13:00 | 18.4°C | 18.5°C | 0 | 3 | ESE | 88 | 1003 |
| 09:00 | 14:00 | 21.7°C | 22.3°C | 0 | 3.1 | SE | 80 | 1002 |
| 10:00 | 15:00 | 24.6°C | 25.2°C | 0.07 | 3.7 | SSE | 71 | 1002 |
| 11:00 | 16:00 | 25.8°C | 25.7°C | 0.2 | 4.8 | SSE | 67 | 1002 |
| 12:00 | 17:00 | 28.3°C | 27.9°C | 0.07 | 5.1 | SSE | 57 | 1001 |
| 13:00 | 18:00 | 29.1°C | 29.3°C | 0 | 4.5 | SSE | 56 | 1000 |
| 14:00 | 19:00 | 30.3°C | 30.1°C | 0 | 4.9 | SE | 51 | 999 |
| 15:00 | 20:00 | 31.7°C | 31.1°C | 0 | 5.3 | SSE | 46 | 998 |
| 16:00 | 21:00 | 30.7°C | 30.7°C | 0.04 | 4.6 | S | 49 | 998 |
| 17:00 | 22:00 | 30.5°C | 29.1°C | 0.42 | 6.4 | SSE | 49 | 995 |
| 18:00 | 23:00 | 24.8°C | 23.7°C | 5.33 | 6.4 | SSW | 71 | 995 |
| 19:00 | 00:00 | 23.3°C | 22.5°C | 3.08 | 5.6 | SSW | 76 | 996 |
| 20:00 | 01:00 | 23.6°C | 22.5°C | 0 | 6.3 | WSW | 77 | 996 |
| 21:00 | 02:00 | 22.7°C | 21.1°C | 0 | 6.8 | W | 80 | 999 |
| 22:00 | 03:00 | 22.6°C | 20.8°C | 0 | 5.8 | W | 70 | 1001 |
| 23:00 | 04:00 | 21.7°C | 19.5°C | 0 | 4.8 | W | 61 | 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
- Algonquin — 42.250°, -88.250°, ERA5 grid cell center, 10.1 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 15 May 2025 specifically — not a monthly average. See the Algonquin 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 (2026-07-18). Historical climate data for Algonquin, United States (42.25°N, 88.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Algonquin, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Algonquin, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Algonquin, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-18},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.