Lead
United States · 21 April 2021
← 20 April 202122 April 2021 →
Average
-4.8°C
low -12.7°C · high 3.5°C
Rainfall
0mm
dry day
Wind
1.9m/s
daily average
Humidity
63.6%
daily average
Cloud
1%
cover
Pressure
1024hPa
daily average
The temperature ranged from -12.7°C around 06:00 to 3.5°C around 17:00. 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
21th percentile
Low temperature
3th percentile
Rainfall
22th percentile
Wind
4th 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 3.8°C, versus -4.8°C on this specific day.
Sun & daylight
Sunrise
06:00
Sunset
19:47
Day length
13h 46m
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 | -9.2°C | -14.5°C | 0 | 2.9 | WNW | 74 | 1031 |
| 01:00 | 07:00 | -10.5°C | -16°C | 0 | 3.1 | W | 73 | 1031 |
| 02:00 | 08:00 | -11.2°C | -16.6°C | 0 | 2.9 | W | 73 | 1031 |
| 03:00 | 09:00 | -12.2°C | -17.2°C | 0 | 2.3 | WSW | 73 | 1031 |
| 04:00 | 10:00 | -11.9°C | -16.9°C | 0 | 2.3 | W | 79 | 1031 |
| 05:00 | 11:00 | -12.2°C | -17.3°C | 0 | 2.5 | WSW | 79 | 1030 |
| 06:00 | 12:00 | -12.7°C | -17.8°C | 0 | 2.4 | WSW | 80 | 1031 |
| 07:00 | 13:00 | -12.6°C | -17.8°C | 0 | 2.5 | SW | 85 | 1031 |
| 08:00 | 14:00 | -10.6°C | -15.1°C | 0 | 1.8 | WSW | 77 | 1031 |
| 09:00 | 15:00 | -4.3°C | -8.3°C | 0 | 1.3 | W | 63 | 1029 |
| 10:00 | 16:00 | -2.2°C | -5.6°C | 0 | 0.6 | W | 59 | 1027 |
| 11:00 | 17:00 | -0.5°C | -3.8°C | 0 | 0.4 | SSW | 49 | 1026 |
| 12:00 | 18:00 | 0.1°C | -3.2°C | 0 | 0.6 | SSE | 56 | 1024 |
| 13:00 | 19:00 | 1°C | -2.6°C | 0 | 0.7 | ESE | 43 | 1022 |
| 14:00 | 20:00 | 1.8°C | -1.7°C | 0 | 0.9 | E | 50 | 1020 |
| 15:00 | 21:00 | 2.7°C | -1°C | 0 | 1.2 | E | 44 | 1019 |
| 16:00 | 22:00 | 2.9°C | -0.6°C | 0 | 1 | E | 47 | 1018 |
| 17:00 | 23:00 | 3.5°C | -0.4°C | 0 | 1 | ESE | 28 | 1018 |
| 18:00 | 00:00 | 3°C | -1°C | 0 | 1.2 | SSE | 31 | 1018 |
| 19:00 | 01:00 | 1.8°C | -2.1°C | 0 | 1.2 | S | 44 | 1017 |
| 20:00 | 02:00 | -1.8°C | -6.4°C | 0 | 2.6 | SSW | 73 | 1018 |
| 21:00 | 03:00 | -6.2°C | -11.4°C | 0 | 3.3 | SSW | 86 | 1018 |
| 22:00 | 04:00 | -6.7°C | -12.2°C | 0 | 3.6 | SSW | 83 | 1017 |
| 23:00 | 05:00 | -6.7°C | -12.5°C | 0 | 3.8 | SSW | 75 | 1017 |
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
- Lead — 44.250°, -103.750°, ERA5 grid cell center, 11.4 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 21 April 2021 specifically — not a monthly average. See the Lead 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 (2026-07-19). Historical climate data for Lead, United States (44.25°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 Lead, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Lead, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Lead, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.