Home / Williston / 30 June 2020
Williston
United States · 30 June 2020
Average
18.1°C
low 14.7° · high 21.8°
Rainfall
12.9mm
rain recorded
Wind
3.9m/s
daily average
Humidity
88.5%
daily average
Cloud
100%
cover
Pressure
1003hPa
daily average
The temperature ranged from 14.7°C around 21:00 to 21.8°C around 00:00. Rain was recorded across 14 hours, from around 00:00 to 21:00 (12.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
16th percentile
Low temperature
68th percentile
Rainfall
99th percentile
Wind
58th 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 19.8°C, versus 18.1°C on this specific day.
Sun & daylight
Sunrise
05:57
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 | 21.8 | 23.4 | 0.54 | 3.2 | E | 92 | 1001 |
| 01:00 | 06:00 | 21.7 | 20.5 | 1.18 | 6.8 | SE | 90 | 1003 |
| 02:00 | 07:00 | 21.3 | 21 | 0 | 5.5 | SE | 90 | 1002 |
| 03:00 | 08:00 | 19.8 | 20.7 | 0.01 | 3 | SE | 92 | 1002 |
| 04:00 | 09:00 | 18.9 | 20 | 0 | 2.4 | S | 94 | 1002 |
| 05:00 | 10:00 | 18.6 | 16.4 | 0 | 6.3 | SSE | 88 | 1002 |
| 06:00 | 11:00 | 18.2 | 17.1 | 0 | 4.7 | SSW | 91 | 1004 |
| 07:00 | 12:00 | 18.8 | 20 | 0 | 1.6 | SSE | 88 | 1004 |
| 08:00 | 13:00 | 19.1 | 19.5 | 0.03 | 2.8 | ESE | 89 | 1003 |
| 09:00 | 14:00 | 18.6 | 17.8 | 2.07 | 4.4 | SE | 90 | 1004 |
| 10:00 | 15:00 | 17.5 | 16.5 | 2.21 | 4.7 | SE | 95 | 1005 |
| 11:00 | 16:00 | 17.5 | 17.1 | 0.32 | 3.5 | ESE | 93 | 1004 |
| 12:00 | 17:00 | 18.4 | 17.4 | 0.21 | 4.2 | ESE | 85 | 1004 |
| 13:00 | 18:00 | 18.8 | 17.9 | 0.43 | 4.2 | ESE | 85 | 1004 |
| 14:00 | 19:00 | 19.3 | 18.7 | 0.81 | 4.3 | SE | 88 | 1004 |
| 15:00 | 20:00 | 18.5 | 19.1 | 0.79 | 2.2 | SE | 87 | 1004 |
| 16:00 | 21:00 | 17.9 | 17.5 | 1.22 | 3.2 | WSW | 86 | 1003 |
| 17:00 | 22:00 | 16.5 | 15 | 2.07 | 4.6 | W | 93 | 1005 |
| 18:00 | 23:00 | 16.2 | 13.7 | 0.16 | 5.6 | WNW | 89 | 1003 |
| 19:00 | 00:00 | 15.9 | 13.6 | 0.02 | 4.7 | NW | 83 | 1005 |
| 20:00 | 01:00 | 15.5 | 13.1 | 0.2 | 4.4 | NW | 81 | 1004 |
| 21:00 | 02:00 | 14.7 | 13.7 | 0.59 | 2.4 | NW | 84 | 1005 |
| 22:00 | 03:00 | 15 | 14.1 | 0.03 | 2.3 | W | 84 | 1005 |
| 23:00 | 04:00 | 15.3 | 14 | 0 | 3.1 | WSW | 85 | 1005 |
Nearby cities
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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
- 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 2020 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.