Polson
United States · 17 June 2021
Average
16.4°C
low 7.2°C · high 24.2°C
Rainfall
0mm
dry day
Wind
1.5m/s
daily average
Humidity
45.5%
daily average
Cloud
0%
cover
Pressure
1018hPa
daily average
The temperature ranged from 7.2°C around 04:00 to 24.2°C around 18:00. No measurable rain was recorded during the day.
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
32th percentile
Rainfall
27th percentile
Wind
39th 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 14.8°C, versus 16.4°C on this specific day.
Sun & daylight
Sunrise
05:38
Sunset
21:38
Day length
16h 0m
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 | 12.7°C | 10.8°C | 0 | 0.6 | SW | 53 | 1020 |
| 01:00 | 07:00 | 12.1°C | 10.1°C | 0 | 0.7 | SW | 54 | 1020 |
| 02:00 | 08:00 | 11.2°C | 9.2°C | 0 | 0.8 | SW | 59 | 1019 |
| 03:00 | 09:00 | 9.3°C | 7.2°C | 0 | 1 | SSW | 68 | 1020 |
| 04:00 | 10:00 | 7.2°C | 5.3°C | 0 | 0.7 | SSW | 77 | 1020 |
| 05:00 | 11:00 | 7.4°C | 5.4°C | 0 | 0.9 | SSW | 76 | 1021 |
| 06:00 | 12:00 | 7.2°C | 5.4°C | 0 | 0.6 | SSW | 77 | 1021 |
| 07:00 | 13:00 | 8.2°C | 6.5°C | 0 | 0.5 | SW | 73 | 1021 |
| 08:00 | 14:00 | 12.4°C | 10.8°C | 0 | 0.8 | S | 62 | 1021 |
| 09:00 | 15:00 | 15.1°C | 13.2°C | 0 | 1.1 | SSW | 50 | 1020 |
| 10:00 | 16:00 | 16.2°C | 13.8°C | 0 | 1.5 | SSW | 44 | 1020 |
| 11:00 | 17:00 | 18.8°C | 16°C | 0 | 1.9 | SW | 34 | 1019 |
| 12:00 | 18:00 | 19.2°C | 16°C | 0 | 2.2 | SW | 32 | 1019 |
| 13:00 | 19:00 | 19.8°C | 16.4°C | 0 | 2.4 | WSW | 30 | 1018 |
| 14:00 | 20:00 | 21.5°C | 18°C | 0 | 2.6 | WSW | 27 | 1017 |
| 15:00 | 21:00 | 22.4°C | 18.7°C | 0 | 2.8 | WSW | 25 | 1017 |
| 16:00 | 22:00 | 23.8°C | 20.4°C | 0 | 2.4 | WSW | 23 | 1016 |
| 17:00 | 23:00 | 24°C | 20.4°C | 0 | 2.6 | W | 23 | 1016 |
| 18:00 | 00:00 | 24.2°C | 20.7°C | 0 | 2.6 | W | 24 | 1015 |
| 19:00 | 01:00 | 24.1°C | 20.8°C | 0 | 2.5 | W | 25 | 1015 |
| 20:00 | 02:00 | 21.9°C | 19.8°C | 0 | 1.4 | WNW | 33 | 1015 |
| 21:00 | 03:00 | 18.6°C | 17.2°C | 0 | 1.3 | WNW | 49 | 1015 |
| 22:00 | 04:00 | 20.9°C | 18.7°C | 0 | 0.9 | SW | 29 | 1016 |
| 23:00 | 05:00 | 16.4°C | 14.5°C | 0 | 0.9 | SSW | 44 | 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
- Polson — 47.750°, -114.250°, ERA5 grid cell center, 9.0 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 17 June 2021 specifically — not a monthly average. See the Polson 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 (2026-07-21). Historical climate data for Polson, United States (47.75°N, 114.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Polson, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Polson, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Polson, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.