Home / Los Alamos / 4 October 2017
Los Alamos
United States · 4 October 2017
← 3 October 20175 October 2017 →
Average
15.4°C
low 12.1° · high 20.3°
Rainfall
28.8mm
rain recorded
Wind
2.3m/s
daily average
Humidity
87.6%
daily average
Cloud
78%
cover
Pressure
1021hPa
daily average
The temperature ranged from 12.1°C around 05:00 to 20.3°C around 15:00. Rain was recorded across 23 hours, from around 00:00 to 22:00 (28.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
30th percentile
Low temperature
100th percentile
Rainfall
100th percentile
Wind
80th 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 13.1°C, versus 15.4°C on this specific day.
Sun & daylight
Sunrise
07:02
Sunset
18:43
Day length
11h 41m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Denver.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 06:00 | 13.8 | 12.9 | 0.3 | 2 | S | 88 | 1021 |
| 01:00 | 07:00 | 13.9 | 13.6 | 1.69 | 1.4 | SSW | 90 | 1022 |
| 02:00 | 08:00 | 14.1 | 14 | 0.57 | 1.5 | SW | 92 | 1022 |
| 03:00 | 09:00 | 14.2 | 14.2 | 1.38 | 1.5 | SSW | 95 | 1022 |
| 04:00 | 10:00 | 12.6 | 11.5 | 0.81 | 2.4 | WSW | 96 | 1020 |
| 05:00 | 11:00 | 12.1 | 11.1 | 1.25 | 1.9 | SSW | 94 | 1021 |
| 06:00 | 12:00 | 12.8 | 12.2 | 0.65 | 1.6 | S | 93 | 1022 |
| 07:00 | 13:00 | 12.9 | 12 | 1.25 | 2.1 | S | 93 | 1023 |
| 08:00 | 14:00 | 13.1 | 12.6 | 2.23 | 1.5 | SSW | 92 | 1024 |
| 09:00 | 15:00 | 15 | 14.7 | 1.6 | 1.7 | SW | 87 | 1024 |
| 10:00 | 16:00 | 16.1 | 15.8 | 0.93 | 2.2 | S | 87 | 1024 |
| 11:00 | 17:00 | 16.2 | 15.5 | 0.79 | 2.8 | S | 87 | 1023 |
| 12:00 | 18:00 | 16.5 | 15.5 | 0.44 | 3.7 | S | 89 | 1022 |
| 13:00 | 19:00 | 17.5 | 16.2 | 0.4 | 4.1 | S | 85 | 1022 |
| 14:00 | 20:00 | 19.4 | 18.5 | 0.96 | 4.1 | S | 80 | 1020 |
| 15:00 | 21:00 | 20.3 | 19.5 | 1.57 | 4.2 | SSW | 78 | 1019 |
| 16:00 | 22:00 | 19.8 | 19.6 | 1.03 | 2.7 | SSW | 76 | 1017 |
| 17:00 | 23:00 | 18.3 | 17.6 | 2.33 | 3 | SSE | 79 | 1018 |
| 18:00 | 00:00 | 17.4 | 17.3 | 1.88 | 1.8 | SSE | 80 | 1019 |
| 19:00 | 01:00 | 17.1 | 17.2 | 1.78 | 1.8 | S | 83 | 1018 |
| 20:00 | 02:00 | 15.3 | 15.3 | 0.97 | 1.5 | SSW | 87 | 1019 |
| 21:00 | 03:00 | 13.7 | 13.1 | 3.02 | 1.7 | SSW | 90 | 1020 |
| 22:00 | 04:00 | 13.9 | 13.6 | 0.91 | 1.4 | SW | 89 | 1021 |
| 23:00 | 05:00 | 14.2 | 13.8 | 0.07 | 1.7 | WSW | 91 | 1021 |
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
- Los Alamos — 36.000°, -106.250°, ERA5 grid cell center, 13.5 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 4 October 2017 specifically — not a monthly average. See the Los Alamos 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 (2026-07-17). Historical climate data for Los Alamos, United States (36.00°N, 106.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Los Alamos, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Los Alamos, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Los Alamos, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.