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Home / Firestone / 18 May 2017

Firestone

United States · 18 May 2017

FirestoneUnited States1:04 AM localChange location

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Average

2.6°C

low 0.4° · high 6.6°

Rainfall

48.2mm

rain recorded

Wind

4.2m/s

daily average

Humidity

96.2%

daily average

Cloud

100%

cover

Pressure

1014hPa

daily average

The temperature ranged from 0.4°C around 17:00 to 6.6°C around 01:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (48.2mm total).

How unusual was this day?

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

High temperature

1th percentile

Low temperature

5th percentile

Rainfall

100th percentile

Wind

98th 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 13.8°C, versus 2.6°C on this specific day.

Sun & daylight

Sunrise

05:41

Sunset

20:11

Day length

14h 30m

Hour by hour

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

↓ 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
00:0006:006.53.42.32.9NNE931011
01:0007:006.641.112.3NNE931011
02:0008:006.33.30.842.7NNE951010
03:0009:005.121.082.8N991010
04:0010:003-0.81.753.3WNW1001013
05:0011:002.4-2.32.34.3WNW991012
06:0012:002.5-2.22.264.3WNW981011
07:0013:002.3-2.12.454WNW981010
08:0014:002.3-22.53.8NW981011
09:0015:002.4-2.52.914.6NNW971011
10:0016:002.6-2.22.964.5N981011
11:0017:003-1.53.154.2NNW991012
12:0018:002.9-1.83.684.5NNW1001012
13:0019:002.7-1.92.994.4NNW1001013
14:0020:002-33.054.7NNW1001013
15:0021:001.5-3.52.694.6NNW1001013
16:0022:000.5-4.62.424.5N1001015
17:0023:000.4-6.31.896.7NNW1001017
18:0000:000.4-6.51.657NNW971018
19:0001:001-5.51.366.4NNW931018
20:0002:001.2-4.11.164.8NNW901019
21:0003:001.4-3.10.783.5NNW871020
22:0004:001.3-2.40.522.4NW871022
23:0005:001.4-2.40.372.5NW861022

Same date, other years

202520242023202220212020201920182016

Nearby cities

Broomfield

0km away, same day

Northglenn

0km away, same day

Lafayette

0km away, same day

Erie

0km away, same day

Frederick

0km away, same day

Dacono

0km away, same day

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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
Firestone — 40.000°, -105.000°, ERA5 grid cell center, 13.6 km from requested point
Time zone
America/Denver
What's shown here
The hourly and daily record for 18 May 2017 specifically — not a monthly average. See the Firestone 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 Firestone, United States (40.00°N, 105.00°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 Firestone, 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 Firestone, 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 Firestone, 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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