Home / Maine / 29 August 2018

Maine

United States · 29 August 2018

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Average

15.8°C

low 12.7° · high 18.9°

Rainfall

0.4mm

dry day

Wind

2.8m/s

daily average

Humidity

77.8%

daily average

Cloud

85%

cover

Pressure

1017hPa

daily average

The temperature ranged from 12.7°C around 07:00 to 18.9°C around 16:00. Rain was recorded for one hour, around 02:00 (0.4mm total).

How unusual was this day?

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

High temperature

9th percentile

Low temperature

48th percentile

Rainfall

60th percentile

Wind

45th 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 18.1°C, versus 15.8°C on this specific day.

Sun & daylight

Sunrise

06:17

Sunset

19:41

Day length

13h 24m

Hour by hour

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

↓ 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
00:0005:0016.8170.022.9W1001012
01:0006:0016.516.30.083.4WNW1001013
02:0007:0016.115.30.113.9NW991013
03:0008:001614.90.064.1NW961013
04:0009:0015.313.90.013.9NNW941014
05:0010:0012.911.402.7NNW921014
06:0011:0012.91103.3NW901015
07:0012:0012.710.803NW871016
08:0013:0013.111.103.2NNW851016
09:0014:0013.511.303.3NNW801017
10:0015:0014.411.30.033.8NW671017
11:0016:0015.7130.043.8NNW661018
12:0017:001714.40.023.5NNW601018
13:0018:001815.60.013.5NNW601019
14:0019:0018.416.403.2NNW611019
15:0020:0018.817.302.7NNW611019
16:0021:0018.917.402.5NNW611019
17:0022:0017.816.60.012.3NNW661020
18:0023:0017.816.302.6NNW651019
19:0000:0017.416.202.2N671019
20:0001:0016.115.601N701020
21:0002:0015.514.701.1NNE681021
22:0003:0014.414.101NNE831021
23:0004:0013.31301.1NNE901022

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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
Maine — 45.000°, -89.750°, ERA5 grid cell center, 5.6 km from requested point
Time zone
America/Chicago
What's shown here
The hourly and daily record for 29 August 2018 specifically — not a monthly average. See the Maine 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 Maine, United States (45.00°N, 89.75°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 Maine, 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 Maine, 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 Maine, 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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