Williston weather in July
In July, Williston sees average daytime highs of 80°F and overnight lows near 58°F, with 2.3 in of rain across 8.2 wet days and about 15.4 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.
Highs climb over the month, from about 78°F in the first days to 82°F by the end. The sky is clear or mostly clear about 49% of the time in July, and the air most often feels dry.
Daylight stretches from about 15 h 48 min at the start of July to 14 h 54 min by month's end. Set against the rest of the year, July is Williston's 2nd-clearest and 12th-windiest month. For the whole year in context, see Williston's year-round climate.
- Daytime high
- 80°
- 1st warmest
- Overnight low
- 58°
- 12th coldest
- Rainfall
- 2.3 in
- 8.2 wet days
- Daylight
- 15 h 30 min
- 5:15 AM – 8:45 PM
- Cloud cover
- 42%
- 2nd clearest
- Wind
- 8 mph
- 12th windiest
- Solar energy
- 6.84 kWh/m²
- Travel score
- 7.1
- out of 10
Williston is city in and seat of Williams County, North Dakota, United States of America.
- Density
- 1,377/km²
- people per km²
- Founded
- 1887
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Highs climb over the month, from about 78°F in the first days to 82°F by the end.
A typical July day in Williston reaches about 80°F in the afternoon and slips back to 58°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 91°F. Set against its neighbours, July runs about 7°F warmer than June and on par with August.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 78 | 78 | 78 | 78 | 79 | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 81 | 81 | 81 | 81 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 |
| Avg low (°F) | 56 | 56 | 57 | 57 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 57 | 57 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 78 | 56 |
| 2 | 78 | 56 |
| 3 | 78 | 57 |
| 4 | 78 | 57 |
| 5 | 79 | 57 |
| 6 | 79 | 57 |
| 7 | 79 | 57 |
| 8 | 80 | 58 |
| 9 | 80 | 58 |
| 10 | 80 | 58 |
| 11 | 80 | 58 |
| 12 | 80 | 58 |
| 13 | 81 | 58 |
| 14 | 81 | 58 |
| 15 | 81 | 58 |
| 16 | 81 | 58 |
| 17 | 81 | 58 |
| 18 | 81 | 58 |
| 19 | 81 | 58 |
| 20 | 81 | 58 |
| 21 | 82 | 58 |
| 22 | 82 | 58 |
| 23 | 82 | 58 |
| 24 | 82 | 58 |
| 25 | 82 | 58 |
| 26 | 82 | 58 |
| 27 | 82 | 58 |
| 28 | 82 | 58 |
| 29 | 82 | 58 |
| 30 | 82 | 57 |
| 31 | 82 | 57 |
How July really feels in Williston
Once humidity and wind are folded in, July averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Williston weather by month
How July compares with the rest of the year at a glance. July is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 20° / 4° | 0.6 | 4.2 | 4.5 | 8.6 | 0.0 |
| Feb | 25° / 8° | 0.5 | 3.7 | 3.8 | 9.9 | 0.0 |
| Mar | 37° / 19° | 0.9 | 5.3 | 4 | 11.6 | 0.2 |
| Apr | 53° / 31° | 1.5 | 7.1 | 2.8 | 13.4 | 3.1 |
| May | 65° / 42° | 2.6 | 9.3 | 0.7 | 14.9 | 5.8 |
| Jun | 73° / 53° | 3.1 | 10.7 | 0 | 15.8 | 6.7 |
| Jul | 80° / 58° | 2.3 | 8.2 | 0 | 15.4 | 7.1 |
| Aug | 80° / 55° | 1.7 | 7.7 | 0 | 14.1 | 7.3 |
| Sep | 70° / 46° | 1.7 | 5.8 | 0 | 12.4 | 7.2 |
| Oct | 54° / 33° | 1.3 | 5.9 | 1.5 | 10.6 | 3.6 |
| Nov | 37° / 20° | 0.8 | 4.9 | 3.8 | 9 | 0.1 |
| Dec | 24° / 9° | 0.6 | 4.7 | 4.9 | 8.2 | 0.0 |
Cloud cover in July
The sky is clear or mostly clear about 49% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 63 | 63 | 64 | 65 | 66 | 66 | 67 | 67 | 68 | 69 | 69 | 70 | 70 | 70 | 70 | 71 | 71 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 73 | 74 | 74 |
| Cloudier (%) | 37 | 37 | 36 | 35 | 34 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 26 | 26 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 63 | 37 |
| 2 | 63 | 37 |
| 3 | 64 | 36 |
| 4 | 65 | 35 |
| 5 | 66 | 34 |
| 6 | 66 | 34 |
| 7 | 67 | 33 |
| 8 | 67 | 33 |
| 9 | 68 | 32 |
| 10 | 69 | 31 |
| 11 | 69 | 31 |
| 12 | 70 | 30 |
| 13 | 70 | 30 |
| 14 | 70 | 30 |
| 15 | 70 | 30 |
| 16 | 71 | 29 |
| 17 | 71 | 29 |
| 18 | 72 | 28 |
| 19 | 73 | 27 |
| 20 | 73 | 27 |
| 21 | 73 | 27 |
| 22 | 73 | 27 |
| 23 | 73 | 27 |
| 24 | 73 | 27 |
| 25 | 74 | 26 |
| 26 | 74 | 26 |
| 27 | 74 | 26 |
| 28 | 74 | 26 |
| 29 | 73 | 27 |
| 30 | 74 | 26 |
| 31 | 74 | 26 |
Chance of precipitation in July
Williston gets around 2.3 in of rain over 8.2 wet days in July. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 27% and peaks near 33% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 33 | 33 | 32 | 32 | 32 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 24 | 24 |
| Rain chance (%) | |
|---|---|
| 1 | 33 |
| 2 | 33 |
| 3 | 32 |
| 4 | 32 |
| 5 | 32 |
| 6 | 32 |
| 7 | 31 |
| 8 | 31 |
| 9 | 30 |
| 10 | 30 |
| 11 | 29 |
| 12 | 29 |
| 13 | 28 |
| 14 | 27 |
| 15 | 27 |
| 16 | 26 |
| 17 | 25 |
| 18 | 25 |
| 19 | 24 |
| 20 | 24 |
| 21 | 23 |
| 22 | 23 |
| 23 | 22 |
| 24 | 22 |
| 25 | 22 |
| 26 | 22 |
| 27 | 22 |
| 28 | 23 |
| 29 | 23 |
| 30 | 24 |
| 31 | 24 |
Humidity in July
Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the dry band about 54% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 60 | 59 | 59 | 57 | 56 | 55 | 54 | 53 | 53 | 51 | 50 | 50 | 50 | 49 | 49 | 49 | 49 | 51 | 51 | 52 | 52 | 53 | 54 | 55 | 56 | 56 | 56 | 56 | 57 | 57 | 57 |
| Comfortable (%) | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 |
| Humid (%) | 15 | 16 | 16 | 17 | 17 | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 |
| Muggy (%) | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 60 | 23 | 15 | 2 |
| 2 | 59 | 23 | 16 | 2 |
| 3 | 59 | 23 | 16 | 2 |
| 4 | 57 | 23 | 17 | 3 |
| 5 | 56 | 24 | 17 | 3 |
| 6 | 55 | 24 | 18 | 3 |
| 7 | 54 | 25 | 18 | 3 |
| 8 | 53 | 25 | 19 | 3 |
| 9 | 53 | 25 | 19 | 3 |
| 10 | 51 | 26 | 20 | 3 |
| 11 | 50 | 26 | 20 | 4 |
| 12 | 50 | 26 | 20 | 4 |
| 13 | 50 | 26 | 20 | 4 |
| 14 | 49 | 27 | 20 | 4 |
| 15 | 49 | 27 | 20 | 4 |
| 16 | 49 | 27 | 20 | 4 |
| 17 | 49 | 27 | 19 | 4 |
| 18 | 51 | 27 | 19 | 3 |
| 19 | 51 | 28 | 18 | 3 |
| 20 | 52 | 27 | 18 | 3 |
| 21 | 52 | 27 | 18 | 3 |
| 22 | 53 | 27 | 17 | 3 |
| 23 | 54 | 28 | 16 | 2 |
| 24 | 55 | 27 | 16 | 2 |
| 25 | 56 | 27 | 15 | 2 |
| 26 | 56 | 28 | 14 | 2 |
| 27 | 56 | 28 | 14 | 2 |
| 28 | 56 | 28 | 14 | 2 |
| 29 | 57 | 28 | 13 | 2 |
| 30 | 57 | 28 | 13 | 2 |
| 31 | 57 | 28 | 13 | 2 |
Wind in July
Winds average 8 mph in July, the calmest month.
Across July, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 9 | light breeze |
| 2 | 9 | light breeze |
| 3 | 9 | light breeze |
| 4 | 9 | light breeze |
| 5 | 9 | light breeze |
| 6 | 9 | light breeze |
| 7 | 9 | light breeze |
| 8 | 9 | light breeze |
| 9 | 9 | light breeze |
| 10 | 9 | light breeze |
| 11 | 9 | light breeze |
| 12 | 9 | light breeze |
| 13 | 9 | light breeze |
| 14 | 9 | light breeze |
| 15 | 9 | light breeze |
| 16 | 9 | light breeze |
| 17 | 9 | light breeze |
| 18 | 8 | light breeze |
| 19 | 8 | light breeze |
| 20 | 8 | light breeze |
| 21 | 8 | light breeze |
| 22 | 8 | light breeze |
| 23 | 8 | light breeze |
| 24 | 8 | light breeze |
| 25 | 8 | light breeze |
| 26 | 8 | light breeze |
| 27 | 8 | light breeze |
| 28 | 8 | light breeze |
| 29 | 8 | light breeze |
| 30 | 8 | light breeze |
| 31 | 8 | light breeze |
Sunrise & sunset in July
Daylight runs from about 15 h 48 min at the start of July to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 54 minutes over July. Sunrise moves from 5:04 AM to 5:33 AM, and sunset from 8:52 PM to 8:28 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 15.8 | 15.8 | 15.8 | 15.8 | 15.8 | 15.7 | 15.7 | 15.7 | 15.7 | 15.6 | 15.6 | 15.6 | 15.6 | 15.5 | 15.5 | 15.5 | 15.5 | 15.4 | 15.4 | 15.4 | 15.3 | 15.3 | 15.2 | 15.2 | 15.2 | 15.1 | 15.1 | 15.0 | 15.0 | 15.0 | 14.9 |
| Sunrise (AM) | 5:04 | 5:04 | 5:05 | 5:05 | 5:06 | 5:07 | 5:07 | 5:08 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:13 | 5:14 | 5:15 | 5:16 | 5:18 | 5:19 | 5:20 | 5:21 | 5:22 | 5:23 | 5:24 | 5:25 | 5:27 | 5:28 | 5:29 | 5:30 | 5:32 | 5:33 |
| Sunset (PM) | 8:52 | 8:52 | 8:52 | 8:51 | 8:51 | 8:51 | 8:50 | 8:50 | 8:49 | 8:49 | 8:48 | 8:48 | 8:47 | 8:46 | 8:46 | 8:45 | 8:44 | 8:43 | 8:42 | 8:41 | 8:40 | 8:39 | 8:38 | 8:37 | 8:36 | 8:35 | 8:33 | 8:32 | 8:31 | 8:30 | 8:28 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 15.8 | 5:04 | 8:52 |
| 2 | 15.8 | 5:04 | 8:52 |
| 3 | 15.8 | 5:05 | 8:52 |
| 4 | 15.8 | 5:05 | 8:51 |
| 5 | 15.8 | 5:06 | 8:51 |
| 6 | 15.7 | 5:07 | 8:51 |
| 7 | 15.7 | 5:07 | 8:50 |
| 8 | 15.7 | 5:08 | 8:50 |
| 9 | 15.7 | 5:09 | 8:49 |
| 10 | 15.6 | 5:10 | 8:49 |
| 11 | 15.6 | 5:11 | 8:48 |
| 12 | 15.6 | 5:12 | 8:48 |
| 13 | 15.6 | 5:13 | 8:47 |
| 14 | 15.5 | 5:13 | 8:46 |
| 15 | 15.5 | 5:14 | 8:46 |
| 16 | 15.5 | 5:15 | 8:45 |
| 17 | 15.5 | 5:16 | 8:44 |
| 18 | 15.4 | 5:18 | 8:43 |
| 19 | 15.4 | 5:19 | 8:42 |
| 20 | 15.4 | 5:20 | 8:41 |
| 21 | 15.3 | 5:21 | 8:40 |
| 22 | 15.3 | 5:22 | 8:39 |
| 23 | 15.2 | 5:23 | 8:38 |
| 24 | 15.2 | 5:24 | 8:37 |
| 25 | 15.2 | 5:25 | 8:36 |
| 26 | 15.1 | 5:27 | 8:35 |
| 27 | 15.1 | 5:28 | 8:33 |
| 28 | 15.0 | 5:29 | 8:32 |
| 29 | 15.0 | 5:30 | 8:31 |
| 30 | 15.0 | 5:32 | 8:30 |
| 31 | 14.9 | 5:33 | 8:28 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 6.84 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 1.29 kWh/m² to a high of 6.84 kWh/m² in July across the year — July's 6.84 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.8 | Intense |
| 2 | 6.8 | Intense |
| 3 | 6.8 | Intense |
| 4 | 6.8 | Intense |
| 5 | 6.8 | Intense |
| 6 | 6.8 | Intense |
| 7 | 6.8 | Intense |
| 8 | 6.8 | Intense |
| 9 | 6.8 | Intense |
| 10 | 6.8 | Intense |
| 11 | 6.8 | Intense |
| 12 | 6.8 | Intense |
| 13 | 6.8 | Intense |
| 14 | 6.8 | Intense |
| 15 | 6.8 | Intense |
| 16 | 6.8 | Intense |
| 17 | 6.8 | Intense |
| 18 | 6.8 | Intense |
| 19 | 6.8 | Intense |
| 20 | 6.8 | Intense |
| 21 | 6.8 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.7 | Intense |
| 24 | 6.7 | Intense |
| 25 | 6.7 | Intense |
| 26 | 6.7 | Intense |
| 27 | 6.6 | Intense |
| 28 | 6.6 | Intense |
| 29 | 6.5 | Intense |
| 30 | 6.5 | Intense |
| 31 | 6.5 | Intense |
Is July a good time to visit Williston?
Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
July is one of the better times to visit Williston for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Williston in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Williston sees daytime highs around 80°F and nights near 58°F. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.
UV index in Williston in July
Clear-sky midday UV in July peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Williston peaks around June 21 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 4 | 6 | 8 | 8 | 6 | 5 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | Very high | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Williston in July
Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.
Air quality in Williston is worst in August — around 16 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (October, 5 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 7 | 8 | 12 | 11 | 11 | 9 | 14 | 16 | 10 | 5 | 6 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 8 | Good |
| Mar | 12 | Good |
| Apr | 11 | Good |
| May | 11 | Good |
| Jun | 9 | Good |
| Jul | 14 | Moderate |
| Aug | 16 | Moderate |
| Sep | 10 | Good |
| Oct | 5 | Good |
| Nov | 6 | Good |
| Dec | 7 | Good |
Where is Williston?
Williston sits at 48.1°N, 103.6°W, 1,877 ft above sea level, in United States. The nearest listed city is Dickinson, 96 mi away.
Topography around Williston
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Williston.
Within 2 miles, the terrain around Williston has only modest variations in elevation — a maximum elevation change of 243 ft around an average of 1,867 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 650 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 912 ft.
The land around Williston is covered by grassland (42%) and artificial surfaces (28%) within 2 miles, grassland (61%) and cropland (25%) within 10 miles, and grassland (56%) and cropland (38%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Williston (48.147°, -103.618°, elevation 1,877 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).