Home / Snowflake / 12 October 2018

Snowflake

United States · 12 October 2018

SnowflakeUnited States3:27 PM localChange location

← 11 October 201813 October 2018 →

Average

13.7°C

low 9.7° · high 18.5°

Rainfall

0.3mm

dry day

Wind

2.2m/s

daily average

Humidity

65.2%

daily average

Cloud

88%

cover

Pressure

1013hPa

daily average

The temperature ranged from 9.7°C around 05:00 to 18.5°C around 16:00. Rain was recorded for one hour, around 01:00 (0.3mm total).

How unusual was this day?

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

High temperature

13th percentile

Low temperature

60th percentile

Rainfall

86th percentile

Wind

19th 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 16°C, versus 13.7°C on this specific day.

Sun & daylight

Sunrise

06:23

Sunset

17:49

Day length

11h 26m

Hour by hour

Temperature (line) and hourly rainfall (bars), local time — America/Phoenix.

↓ 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
00:0007:0012.510.30.042.3SSW711015
01:0008:0012.110.10.22SSW721015
02:0009:0011.410.10.061.4SSW811015
03:0010:0010.1900.9E871015
04:0011:009.87.802.2ENE881015
05:0012:009.77.60.012.2E881016
06:0013:009.77.702E861016
07:0014:0010.27.902.3ENE821016
08:0015:0011.49.102.1ENE711017
09:0016:0012.19.802.1E681017
10:0017:0013.61102.5E631016
11:0018:0014.61202.8E611015
12:0019:0015.613.202.5E571014
13:0020:0016.714.602ESE531012
14:0021:0017.615.701.4ESE461011
15:0022:0018.416.701.1ENE441010
16:0023:0018.51602.4NNE441010
17:0000:0018.31503.3NNE431010
18:0001:0017.914.702.9N421010
19:0002:0016.613.802.6NNW481011
20:0003:001411.702.2NW611011
21:0004:0013.211.201.8WNW661012
22:0005:0012.510.502WSW701012
23:0006:0011.79.202.6WSW731013

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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
Snowflake — 34.500°, -110.000°, ERA5 grid cell center, 7.3 km from requested point
Time zone
America/Phoenix
What's shown here
The hourly and daily record for 12 October 2018 specifically — not a monthly average. See the Snowflake 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 (2026-07-17). Historical climate data for Snowflake, United States (34.50°N, 110.00°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 Snowflake, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Snowflake, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Snowflake, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
  url = {https://www.pastclimate.com/}
}

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