Home / Keizer / 19 December 2017

Keizer

United States · 19 December 2017

KeizerUnited States8:01 PM localChange location

← 18 December 201720 December 2017 →

Average

8.9°C

low 5.4° · high 11°

Rainfall

25.4mm

rain recorded

Wind

5.6m/s

daily average

Humidity

89%

daily average

Cloud

91%

cover

Pressure

1009hPa

daily average

The temperature ranged from 5.4°C around 23:00 to 11°C around 02:00. Rain was recorded across 22 hours, from around 02:00 to 23:00 (25.4mm total).

How unusual was this day?

Compared against the same 135 calendar days (±7 days) across the other 9 years on file.

High temperature

72th percentile

Low temperature

61th percentile

Rainfall

95th percentile

Wind

95th 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 6.2°C, versus 8.9°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.

↓ Download CSV
00:0006:0012:0018:0023:00

Cumulative rainfall through the day.

00:0006:0012:0018:0023:00
Local timeUTCTemp °CFeels °CRain mmWind m/sDirHumidity %Pressure hPa
00:0008:0010.16.30.044.8S881016
01:0009:001060.095S891016
02:0010:00117.40.114.9S881014
03:0011:00116.90.185.5S881013
04:0012:0010.56.11.016S891012
05:0013:0010.65.916.4S881011
06:0014:0010.75.40.727.2S891010
07:0015:0010.650.877.6S881008
08:0016:0010.74.91.087.8S881007
09:0017:0010.74.71.348.2S881007
10:0018:0010.441.68.7S881006
11:0019:0010.54.42.138.5SSW901005
12:0020:00104.54.037.2SW901005
13:0021:008.63.94.045.9WSW921006
14:0022:007.73.52.664.6WSW881006
15:0023:007.83.81.424.3SW881007
16:0000:007.83.90.94.1SW871007
17:0001:007.53.70.393.9SW861008
18:0002:007.33.60.313.8SW871009
19:0003:0062.10.143.9SSW911009
20:0004:006.62.80.13.9SSW921010
21:0005:0062.10.833.9SW911011
22:0006:005.71.50.154.1SSW911012
23:0007:005.41.10.314.3SSW921013

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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 19 December 2017 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

Plain text
PastClimate (2026-07-18). 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/
APA
PastClimate. (2026). Historical climate data for Keizer, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Keizer, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
BibTeX
@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 2026-07-18},
  url = {https://www.pastclimate.com/}
}

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