Home / Keizer / 20 December 2019
Keizer
United States · 20 December 2019
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Average
13.5°C
low 12.2°C · high 14.7°C
Rainfall
20.9mm
rain recorded
Wind
5.7m/s
daily average
Humidity
84%
daily average
Cloud
100%
cover
Pressure
1010hPa
daily average
The temperature ranged from 12.2°C around 22:00 to 14.7°C around 14:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (20.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
96th percentile
Low temperature
100th percentile
Rainfall
93th percentile
Wind
96th 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 5.9°C, versus 13.5°C on this specific day.
Sun & daylight
Sunrise
07:46
Sunset
16:32
Day length
8h 46m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 08:00 | 13°C | 7.9°C | 0.42 | 7.9 | SSW | 89 | 1010 |
| 01:00 | 09:00 | 13.6°C | 8.7°C | 0.63 | 7.8 | SSW | 90 | 1010 |
| 02:00 | 10:00 | 13.3°C | 8.6°C | 0.4 | 7.1 | SSW | 86 | 1010 |
| 03:00 | 11:00 | 13.4°C | 9.2°C | 0.21 | 6.4 | SSW | 85 | 1011 |
| 04:00 | 12:00 | 13.2°C | 8.8°C | 0.25 | 6.5 | SSW | 84 | 1011 |
| 05:00 | 13:00 | 13.6°C | 9.5°C | 0.3 | 6.3 | SSW | 84 | 1011 |
| 06:00 | 14:00 | 13.4°C | 9.2°C | 0.67 | 6.4 | SSW | 85 | 1010 |
| 07:00 | 15:00 | 13.3°C | 9.1°C | 1.3 | 6.2 | SSW | 83 | 1010 |
| 08:00 | 16:00 | 13.4°C | 9.1°C | 1.15 | 6.6 | SSW | 85 | 1011 |
| 09:00 | 17:00 | 13.9°C | 9.1°C | 0.82 | 7.4 | SSW | 84 | 1011 |
| 10:00 | 18:00 | 14.1°C | 9.2°C | 0.84 | 7.6 | SSW | 84 | 1012 |
| 11:00 | 19:00 | 14.2°C | 9.5°C | 0.32 | 7.4 | SSW | 84 | 1012 |
| 12:00 | 20:00 | 14.3°C | 9.8°C | 0.27 | 7.2 | SSW | 84 | 1011 |
| 13:00 | 21:00 | 14.4°C | 10.1°C | 0.33 | 6.9 | SSW | 84 | 1011 |
| 14:00 | 22:00 | 14.7°C | 10.4°C | 0.53 | 6.3 | SSW | 75 | 1010 |
| 15:00 | 23:00 | 14.4°C | 10.6°C | 1.08 | 5.6 | SSW | 77 | 1010 |
| 16:00 | 00:00 | 13.8°C | 9.9°C | 1.93 | 5.8 | SSW | 81 | 1010 |
| 17:00 | 01:00 | 13.7°C | 9.8°C | 1.04 | 5.7 | SSW | 82 | 1010 |
| 18:00 | 02:00 | 13.6°C | 10.2°C | 1.41 | 5.1 | SSW | 82 | 1010 |
| 19:00 | 03:00 | 12.8°C | 10.2°C | 1.34 | 3.9 | SSW | 86 | 1010 |
| 20:00 | 04:00 | 12.6°C | 10.9°C | 1.23 | 2.6 | SW | 86 | 1010 |
| 21:00 | 05:00 | 12.5°C | 11.3°C | 1.81 | 1.9 | WSW | 87 | 1009 |
| 22:00 | 06:00 | 12.2°C | 11.4°C | 1.18 | 1.2 | SW | 86 | 1009 |
| 23:00 | 07:00 | 12.3°C | 11.5°C | 1.48 | 1.3 | SSE | 85 | 1009 |
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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
- Keizer — 45.000°, -123.000°, ERA5 grid cell center, 2.3 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 20 December 2019 specifically — not a monthly average. See the Keizer 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 Keizer, United States (45.00°N, 123.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Keizer, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Keizer, 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 Keizer, 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.