Home / Spearfish / 27 May 2017
Spearfish
United States · 27 May 2017
Average
13.5°C
low 7.4°C · high 19.7°C
Rainfall
0.8mm
dry day
Wind
4.3m/s
daily average
Humidity
52%
daily average
Cloud
37%
cover
Pressure
1014hPa
daily average
The temperature ranged from 7.4°C around 04:00 to 19.7°C around 17:00. Rain was recorded across 2 hours, from around 12:00 to 19:00 (0.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
44th percentile
Low temperature
42th percentile
Rainfall
45th percentile
Wind
82th 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 14°C, versus 13.5°C on this specific day.
Sun & daylight
Sunrise
05:16
Sunset
20:28
Day length
15h 12m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Denver.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 06:00 | 8.6°C | 6.3°C | 0 | 1.8 | SSW | 80 | 1014 |
| 01:00 | 07:00 | 8.8°C | 6.3°C | 0 | 2.1 | SSW | 78 | 1014 |
| 02:00 | 08:00 | 8.9°C | 6.2°C | 0 | 2.4 | SW | 77 | 1014 |
| 03:00 | 09:00 | 7.4°C | 4.5°C | 0 | 2.4 | SW | 81 | 1014 |
| 04:00 | 10:00 | 7.4°C | 4.1°C | 0 | 2.7 | WSW | 77 | 1014 |
| 05:00 | 11:00 | 7.6°C | 4°C | 0 | 3.1 | WSW | 75 | 1014 |
| 06:00 | 12:00 | 8.1°C | 4.4°C | 0 | 3.3 | WSW | 71 | 1015 |
| 07:00 | 13:00 | 8.4°C | 4.3°C | 0 | 3.7 | W | 69 | 1015 |
| 08:00 | 14:00 | 10.9°C | 6.4°C | 0 | 4.1 | WNW | 56 | 1015 |
| 09:00 | 15:00 | 15.8°C | 10.6°C | 0.03 | 4.5 | NW | 34 | 1016 |
| 10:00 | 16:00 | 15.8°C | 10.7°C | 0.08 | 4.5 | NW | 34 | 1015 |
| 11:00 | 17:00 | 17.3°C | 12.2°C | 0.03 | 4.7 | NW | 32 | 1015 |
| 12:00 | 18:00 | 17.5°C | 12.1°C | 0.11 | 4.9 | NW | 32 | 1015 |
| 13:00 | 19:00 | 17.8°C | 12.6°C | 0.03 | 4.7 | NW | 32 | 1014 |
| 14:00 | 20:00 | 18.3°C | 13.1°C | 0.04 | 5 | WNW | 33 | 1014 |
| 15:00 | 21:00 | 18.8°C | 13.1°C | 0.05 | 5.6 | WNW | 31 | 1014 |
| 16:00 | 22:00 | 19.6°C | 13.2°C | 0.01 | 6.5 | NW | 29 | 1013 |
| 17:00 | 23:00 | 19.7°C | 13.4°C | 0.04 | 6.6 | NW | 30 | 1013 |
| 18:00 | 00:00 | 19.5°C | 13.2°C | 0.02 | 6.5 | WNW | 30 | 1013 |
| 19:00 | 01:00 | 16.9°C | 10.7°C | 0.27 | 6.6 | NW | 40 | 1015 |
| 20:00 | 02:00 | 15.8°C | 11.4°C | 0.05 | 4.5 | WNW | 47 | 1015 |
| 21:00 | 03:00 | 12°C | 7.7°C | 0 | 4.3 | W | 58 | 1015 |
| 22:00 | 04:00 | 12.8°C | 8.3°C | 0 | 4.9 | WSW | 60 | 1016 |
| 23:00 | 05:00 | 11.3°C | 6.6°C | 0 | 4.8 | WSW | 62 | 1016 |
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
- Spearfish — 44.500°, -103.750°, ERA5 grid cell center, 8.7 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 27 May 2017 specifically — not a monthly average. See the Spearfish 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 Spearfish, United States (44.50°N, 103.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Spearfish, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Spearfish, 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 Spearfish, 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.