Gillette weather in July

In July, Gillette sees average daytime highs of 85°F and overnight lows near 59°F, with 1.4 in of rain across 7.9 wet days and about 15 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 83°F in the first days to 86°F by the end. The sky is clear or mostly clear about 53% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 18 min at the start of July to 14 h 30 min by month's end. Set against the rest of the year, July is Gillette's 2nd-clearest and 12th-windiest month. For the whole year in context, see Gillette's year-round climate.

Daytime high
85°
1st warmest
Overnight low
59°
12th coldest
Rainfall
1.4 in
7.9 wet days
Daylight
15 hours
4:37 AM – 7:38 PM
Cloud cover
41%
2nd clearest
Wind
10 mph
12th windiest
Solar energy
7.4 kWh/m²
Travel score
5.7
out of 10

Gillette is city in Campbell County, Wyoming, United States.

Density
664/km²
people per km²
Founded
1892

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 83°F in the first days to 86°F by the end.

A typical July day in Gillette reaches about 85°F in the afternoon and slips back to 59°F overnight — a 26°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 96°F. Set against its neighbours, July runs about 10°F warmer than June and about 1°F warmer than August.

40°60°80°100°151015202531
Avg high (°F)Avg low (°F)
18256
28257
38357
48357
58358
68458
78458
88458
98559
108559
118559
128559
138660
148660
158660
168660
178660
188660
198660
208660
218660
228660
238660
248660
258660
268660
278660
288660
298660
308660
318660

How July really feels in Gillette

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.

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

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Gillette weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan34° / 16°0.65.25.59.10.0
Feb37° / 18°0.85.85.710.20.0
Mar47° / 26°1.47.85.811.61.5
Apr54° / 33°2.410.85.413.23.2
May64° / 42°3.111.51.214.55.4
Jun75° / 52°2.310.20.115.36.8
Jul85° / 59°1.47.90155.7
Aug84° / 58°1.25.8013.86.5
Sep72° / 48°1.460.512.37.4
Oct56° / 36°1.97.83.110.84.3
Nov44° / 25°0.854.89.40.9
Dec35° / 18°0.75.15.18.70.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 24%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37525
47426
57426
67525
77525
87525
97624
107624
117624
127723
137723
147723
157723
167723
177723
187624
197624
207624
217624
227525
237624
247624
257525
267525
277624
287624
297624
307624
317624

Chance of precipitation in July

Any precipitation

Gillette gets around 1.4 in of rain over 7.9 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 25% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
427
527
627
727
826
926
1026
1126
1225
1325
1425
1525
1624
1724
1824
1925
2025
2125
2225
2324
2424
2524
2624
2724
2824
2924
3023
3123

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
187130
287130
386131
486131
585141
685141
785141
885141
985141
1086131
1186131
1286131
1386131
1486131
1586131
1686131
1785132
1885132
1985132
2085132
2185132
2285132
2385132
2485132
2585132
2685132
2785132
2885132
2984142
3084142
3184142

Wind in July

Winds average 10 mph in July, the calmest month.

Across July, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 18 min at the start of July to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over July. Sunrise moves from 4:27 AM to 4:52 AM, and sunset from 7:44 PM to 7:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.34:277:44
215.34:277:44
315.34:287:44
415.34:287:44
515.24:297:43
615.24:297:43
715.24:307:43
815.24:317:42
915.24:317:42
1015.24:327:42
1115.14:337:41
1215.14:347:41
1315.14:347:40
1415.14:357:40
1515.04:367:39
1615.04:377:38
1715.04:387:38
1815.04:397:37
1914.94:407:36
2014.94:417:35
2114.94:427:34
2214.84:437:34
2314.84:447:33
2414.84:457:32
2514.84:467:31
2614.74:477:30
2714.74:487:29
2814.64:497:28
2914.64:507:27
3014.64:517:25
3114.54:527:24

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.4 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.87 kWh/m² to a high of 7.4 kWh/m² in July across the year — July's 7.4 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.6Intense
27.6Intense
37.6Intense
47.6Intense
57.6Intense
67.6Intense
77.6Intense
87.6Intense
97.5Intense
107.5Intense
117.5Intense
127.5Intense
137.5Intense
147.5Intense
157.5Intense
167.4Intense
177.4Intense
187.4Intense
197.4Intense
207.3Intense
217.3Intense
227.3Intense
237.3Intense
247.2Intense
257.2Intense
267.2Intense
277.1Intense
287.1Intense
297.1Intense
307.1Intense
317.0Intense
Planning a trip in July

Is July a good time to visit Gillette?

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

5.7
Sightseeing
4th-best month of the year
7.5
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Gillette for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Gillette in July

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

In July, Gillette sees daytime highs around 85°F and nights near 59°F. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Gillette in July

LowModerateHighVery highExtreme

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 Gillette peaks around June 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 18UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul8Very high
Aug7High
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Gillette in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Gillette is worst in August — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2220 µg/m³Dec 188 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar12Moderate
Apr12Good
May13Moderate
Jun13Moderate
Jul15Moderate
Aug20Moderate
Sep20Moderate
Oct14Moderate
Nov11Good
Dec8Good
Location & terrain

Where is Gillette?

Gillette sits at 44.3°N, 105.5°W, 4,554 ft above sea level, in United States. The nearest listed city is Sheridan, 80 mi away.

Topography around Gillette

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Gillette.

Within 2 miles, the terrain around Gillette has only modest variations in elevation — a maximum elevation change of 348 ft around an average of 4,564 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,014 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,707 ft.

The land around Gillette is covered by grassland (50%) and artificial surfaces (35%) within 2 miles, grassland (91%) within 10 miles, and grassland (94%) within 50 miles.

2 miles
348 ft
10 miles
1,014 ft
50 miles
2,707 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Sheridan 80 mi · Casper 106 mi · Rapid City 114 mi · Billings 179 mi · Laramie 206 mi · Cheyenne 221 mi · Dickinson 222 mi · Fort Collins 257 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 Gillette (44.2911°, -105.5022°, elevation 4,554 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).