Home / Williston / 30 June 2018
Williston
United States · 30 June 2018
Average
17.5°C
low 13.5° · high 21.3°
Rainfall
0.7mm
dry day
Wind
2.9m/s
daily average
Humidity
70.5%
daily average
Cloud
32%
cover
Pressure
1011hPa
daily average
The temperature ranged from 13.5°C around 05:00 to 21.3°C around 20:00. Rain was recorded across 3 hours, from around 16:00 to 21:00 (0.7mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
11th percentile
Low temperature
50th percentile
Rainfall
64th percentile
Wind
30th 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 20°C, versus 17.5°C on this specific day.
Sun & daylight
Sunrise
05:56
Sunset
21:58
Day length
16h 1m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 14.3 | 13.6 | 0 | 2.3 | WNW | 91 | 1010 |
| 01:00 | 06:00 | 14.4 | 13.6 | 0 | 2.4 | W | 90 | 1010 |
| 02:00 | 07:00 | 15 | 13.6 | 0 | 3.1 | W | 87 | 1010 |
| 03:00 | 08:00 | 14.4 | 12.7 | 0 | 3.6 | W | 88 | 1010 |
| 04:00 | 09:00 | 13.9 | 11.6 | 0 | 4 | W | 87 | 1010 |
| 05:00 | 10:00 | 13.5 | 11.2 | 0 | 3.7 | WNW | 84 | 1010 |
| 06:00 | 11:00 | 13.5 | 11.5 | 0 | 3.2 | WNW | 83 | 1011 |
| 07:00 | 12:00 | 13.7 | 11.6 | 0 | 3.3 | WNW | 82 | 1012 |
| 08:00 | 13:00 | 14.2 | 12 | 0 | 3.5 | NW | 81 | 1013 |
| 09:00 | 14:00 | 16.3 | 13.8 | 0 | 3.7 | NNW | 69 | 1013 |
| 10:00 | 15:00 | 18.2 | 16 | 0 | 3.2 | N | 59 | 1013 |
| 11:00 | 16:00 | 18.5 | 17.5 | 0 | 1.8 | NNW | 61 | 1013 |
| 12:00 | 17:00 | 20.2 | 18.8 | 0 | 2 | WNW | 52 | 1013 |
| 13:00 | 18:00 | 20.5 | 18.9 | 0 | 2.6 | W | 53 | 1013 |
| 14:00 | 19:00 | 20.3 | 18.3 | 0.01 | 3.1 | W | 53 | 1012 |
| 15:00 | 20:00 | 20.6 | 18.4 | 0.05 | 3.2 | W | 51 | 1012 |
| 16:00 | 21:00 | 21.1 | 19 | 0.11 | 3.3 | WSW | 51 | 1012 |
| 17:00 | 22:00 | 21 | 19.6 | 0.19 | 3.2 | WSW | 60 | 1011 |
| 18:00 | 23:00 | 21.2 | 20.2 | 0.06 | 3 | WSW | 61 | 1010 |
| 19:00 | 00:00 | 21.1 | 19.9 | 0.05 | 3 | WSW | 59 | 1010 |
| 20:00 | 01:00 | 21.3 | 19.9 | 0.05 | 2.9 | WSW | 57 | 1010 |
| 21:00 | 02:00 | 19.5 | 19.8 | 0.1 | 1.5 | SW | 71 | 1010 |
| 22:00 | 03:00 | 16.7 | 16.3 | 0.05 | 2.1 | SSE | 82 | 1010 |
| 23:00 | 04:00 | 16.5 | 15.9 | 0 | 2.3 | SSE | 81 | 1010 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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
- Williston — 48.250°, -103.500°, ERA5 grid cell center, 14.4 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 30 June 2018 specifically — not a monthly average. See the Williston 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 (2026-07-17). Historical climate data for Williston, United States (48.25°N, 103.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Williston, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Williston, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Williston, 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/}
}Notice something wrong with this data? Report a data issue.