Sheridan in Summer
In summer (June, July and August), Sheridan sees average daytime highs around 75°F and overnight lows near 50°F, with 6.5 in of precipitation over about 35 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Over the season highs climb from about 64°F in early June to 75°F by late August. The sky is clear or mostly clear about 43% of the time across summer, and the air most often feels dry.
Summer is Sheridan's best season of the year to visit on our travel score. For the whole year in context, see Sheridan's year-round climate.
- Avg daytime high
- 75°F
- warmest season of the year
- Avg overnight low
- 50°F
- Precipitation
- 6.5 in
- 35 wet days
- Avg wind
- 4 mph
- Travel score
- 6.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Sheridan in Summer
Over the season highs climb from about 64°F in early June to 75°F by late August.
A typical summer day in Sheridan reaches about 75°F and drops to 50°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Sheridan
Once humidity and wind are folded in, summer brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Sheridan weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 32° / 14° | 1.1 | 7.8 | 8.7 | 9 | 0.0 |
| Feb | 34° / 15° | 1.2 | 7.7 | 8.6 | 10.1 | 0.0 |
| Mar | 43° / 22° | 2.1 | 10.7 | 10.1 | 11.6 | 0.6 |
| Apr | 50° / 29° | 3.3 | 13.5 | 10.8 | 13.2 | 2.0 |
| May | 58° / 37° | 3.9 | 14.5 | 7.1 | 14.6 | 4.0 |
| Jun | 69° / 46° | 3.0 | 14.1 | 1.5 | 15.3 | 5.8 |
| Jul | 78° / 52° | 2.0 | 11.1 | 0.1 | 15 | 6.8 |
| Aug | 77° / 51° | 1.5 | 10 | 0.2 | 13.9 | 7.1 |
| Sep | 67° / 43° | 2.2 | 9.1 | 2.7 | 12.3 | 6.5 |
| Oct | 53° / 32° | 2.6 | 9.6 | 7.3 | 10.7 | 3.3 |
| Nov | 41° / 21° | 1.4 | 8.2 | 7.9 | 9.4 | 0.4 |
| Dec | 33° / 14° | 1.0 | 7.3 | 8.1 | 8.7 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 43% of the time across summer.
Chance of precipitation in Summer
Sheridan gets around 6.5 in of rain and snow over 35 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 06 min in early June to 13 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.8 kWh/m².
Is summer a good time to visit Sheridan?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Sheridan for sightseeing.
What to pack for Sheridan in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Sheridan sees daytime highs around 75°F and nights near 50°F. Pack rain gear and sun protection. Worth having: light clothes and a warm layer. About 35 days see rain.
UV index in Sheridan in Summer
Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sheridan peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 | 4 | 5 | 7 | 9 | 8 | 7 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Sheridan in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Sheridan is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (November, 7 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) | 9 | 8 | 10 | 10 | 10 | 8 | 18 | 20 | 15 | 15 | 7 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 8 | Good |
| Mar | 10 | Good |
| Apr | 10 | Good |
| May | 10 | Good |
| Jun | 8 | Good |
| Jul | 18 | Moderate |
| Aug | 20 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Sheridan?
Sheridan sits at 44.8°N, 107.0°W, 3,743 ft above sea level, in United States. The nearest listed city is Gillette, 80 mi away.
Topography around Sheridan
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Sheridan.
Within 2 miles, the terrain around Sheridan has only modest variations in elevation — a maximum elevation change of 341 ft around an average of 3,839 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,355 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,069 ft.
The land around Sheridan is covered by grassland (46%) and artificial surfaces (30%) within 2 miles, grassland (88%) within 10 miles, and grassland (73%) and trees (21%) 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 Sheridan (44.7972°, -106.9562°, elevation 3,743 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.