Sheridan weather in August

In August, Sheridan sees average daytime highs of 77°F and overnight lows near 51°F, with 1.5 in of precipitation across 10 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 79°F in the first days to 75°F by the end. The sky is clear or mostly clear about 49% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Sheridan's 1st-clearest and 11th-windiest month. For the whole year in context, see Sheridan's year-round climate.

Daytime high
77°
2nd warmest
Overnight low
51°
11th coldest
Precipitation
1.5 in
10 wet days
Daylight
13 h 54 min
5:15 AM – 7:09 PM
Cloud cover
43%
1st clearest
Wind
4 mph
11th windiest
Solar energy
6.28 kWh/m²
Travel score
7.1
out of 10

Sheridan is city in and county seat of Sheridan County, Wyoming, United States.

Density
630/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 79°F in the first days to 75°F by the end.

A typical August day in Sheridan reaches about 77°F in the afternoon and slips back to 51°F overnight — a 26°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 86°F. Set against its neighbours, August runs on par with July and about 10°F warmer than September.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17953
27953
37953
47953
57953
67952
77952
87852
97852
107852
117852
127852
137852
147851
157851
167851
177751
187751
197751
207751
217751
227751
237750
247650
257650
267650
277650
287649
297549
307549
317549

How August really feels in Sheridan

Once humidity and wind are folded in, August 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.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August 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 August compares with the rest of the year at a glance. August is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 14°1.17.88.790.0
Feb34° / 15°1.27.78.610.10.0
Mar43° / 22°2.110.710.111.60.6
Apr50° / 29°3.313.510.813.22.0
May58° / 37°3.914.57.114.64.0
Jun69° / 46°3.014.11.515.35.8
Jul78° / 52°2.011.10.1156.8
Aug77° / 51°1.5100.213.97.1
Sep67° / 43°2.29.12.712.36.5
Oct53° / 32°2.69.67.310.73.3
Nov41° / 21°1.48.27.99.40.4
Dec33° / 14°1.07.38.18.70.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27327
37327
47327
57327
67327
77327
87327
97327
107228
117228
127228
137228
147228
157228
167228
177228
187228
197228
207228
217129
227129
237228
247228
257129
267129
277129
287129
297129
307228
317129

Chance of precipitation in August

Any precipitationSnow

Sheridan gets around 1.5 in of rain and snow over 10 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 38% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1380
2380
3370
4370
5370
6360
7360
8350
9350
10340
11340
12330
13330
14320
15321
16311
17311
18311
19301
20301
21291
22291
23291
24281
25281
26281
27271
28271
29272
30272
31272

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5991
6991
7991
8991
9991
10991
11991
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in August

Winds average 4 mph in August.

Across August, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 30 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over August. Sunrise moves from 4:58 AM to 5:33 AM, and sunset from 7:30 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.54:587:30
214.54:597:29
314.55:007:28
414.45:017:26
514.45:027:25
614.35:037:24
714.35:047:22
814.35:067:21
914.25:077:19
1014.25:087:18
1114.15:097:16
1214.15:107:15
1314.05:127:13
1414.05:137:12
1513.95:147:10
1613.95:157:09
1713.85:167:07
1813.85:187:05
1913.75:197:04
2013.75:207:02
2113.75:217:00
2213.65:226:59
2313.65:246:57
2413.55:256:55
2513.55:266:53
2613.45:276:51
2713.45:296:50
2813.35:306:48
2913.35:316:46
3013.25:326:44
3113.15:336:42

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.28 kWh/m².

For context, solar energy here swings from a low near 1.81 kWh/m² to a high of 7.14 kWh/m² in July across the year — August's 6.28 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.6Intense
76.6Intense
86.6Intense
96.5Intense
106.5Intense
116.5Intense
126.4Intense
136.4Intense
146.4Intense
156.3Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.7Bright
315.7Bright
Planning a trip in August

Is August a good time to visit Sheridan?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.1
Sightseeing
1st-best month of the year
6.5
Beach & pool
1st-best month of the year

August is one of the better times to visit Sheridan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sheridan in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Sheridan sees daytime highs around 77°F and nights near 51°F. Pack sun protection. Worth having: light clothes and rain gear. About 10 days see rain.

sun protectionlight clothesrain gear

UV index in Sheridan in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul8Very high
Aug7Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Sheridan in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1320 µg/m³Nov 227 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar10Good
Apr10Good
May10Good
Jun8Good
Jul18Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov7Good
Dec7Good
Location & terrain

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.

2 miles
341 ft
10 miles
1,355 ft
50 miles
10,069 ft
treesgrasslandcroplandartificial surfacesbare terrainmoss and lichen
August weather nearby: Gillette 80 mi · Billings 101 mi · Casper 137 mi · Rapid City 190 mi · Bozeman 208 mi · Dickinson 247 mi · Rexburg 248 mi · Rock Springs 249 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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. 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).