Brighton weather in July

In July, Brighton sees average daytime highs of 89°F and overnight lows near 61°F, with 1.3 in of rain across 6.9 wet days and about 14.5 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 89°F through the month. The sky is clear or mostly clear about 43% of the time in July, and the air most often feels dry.

Daylight stretches from about 14 h 48 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is Brighton's 7th-clearest and 11th-windiest month. For the whole year in context, see Brighton's year-round climate.

Daytime high
89°
1st warmest
Overnight low
61°
12th coldest
Rainfall
1.3 in
6.9 wet days
Daylight
14 h 36 min
4:48 AM – 7:22 PM
Cloud cover
47%
7th clearest
Wind
5 mph
11th windiest
Solar energy
7.32 kWh/m²
Travel score
4.6
out of 10

Brighton is city in and county seat of Adams County, Colorado, United States.

Density
716/km²
people per km²
Founded
1887

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 89°F through the month.

A typical July day in Brighton reaches about 89°F in the afternoon and slips back to 61°F overnight — a 28°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 97°F. Set against its neighbours, July runs about 6°F warmer than June and about 2°F warmer than August.

60°80°100°151015202531
Avg high (°F)Avg low (°F)
18860
28860
38960
48960
58960
68961
78961
88961
98961
108961
118961
128962
138962
149062
159062
169062
179062
189062
198962
208962
218962
228962
238962
248962
258962
268962
278962
288862
298862
308862
318862

How July really feels in Brighton

Once humidity and wind are folded in, July averages 5 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
5
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Brighton weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 19°0.53.33.59.50.4
Feb46° / 22°0.53.63.510.41.5
Mar56° / 29°1.35.43.411.74.3
Apr63° / 37°2.07.63.2135.8
May72° / 46°2.59.50.614.26.7
Jun83° / 55°1.57014.86.3
Jul89° / 61°1.36.9014.54.6
Aug87° / 60°1.25.7013.65.5
Sep79° / 51°1.04.20.412.37.7
Oct65° / 38°1.25.11.510.96.9
Nov52° / 27°0.74.13.39.83.4
Dec42° / 20°0.533.29.20.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 27% of July, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37426
47426
57426
67426
77327
87327
97327
107327
117327
127327
137228
147228
157228
167228
177129
187129
197030
207030
216832
226832
236733
246733
256733
266535
276535
286535
296535
306535
316535

Chance of precipitation in July

Any precipitation

Brighton gets around 1.3 in of rain over 6.9 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 22% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
218
318
419
519
620
720
821
921
1022
1122
1222
1322
1422
1522
1622
1722
1822
1923
2023
2123
2223
2323
2423
2523
2623
2724
2824
2924
3024
3124

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 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
190100
288111
388111
487121
586131
685141
784142
883152
982162
1082162
1181172
1279183
1379183
1479183
1578193
1678193
1778193
1877203
1977203
2076204
2175214
2275214
2374224
2474224
2574224
2673234
2773234
2873234
2972244
3072244
3172244

Wind in July

Winds average 5 mph in July.

Across July, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 48 min at the start of July to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 4:38 AM to 5:00 AM, and sunset from 7:27 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:387:27
214.84:397:27
314.84:397:27
414.84:407:27
514.84:407:26
614.84:417:26
714.74:417:26
814.74:427:26
914.74:437:25
1014.74:437:25
1114.74:447:25
1214.74:457:24
1314.64:457:24
1414.64:467:23
1514.64:477:23
1614.64:487:22
1714.64:487:22
1814.54:497:21
1914.54:507:20
2014.54:517:20
2114.54:517:19
2214.44:527:18
2314.44:537:18
2414.44:547:17
2514.44:557:16
2614.34:567:15
2714.34:577:14
2814.34:587:13
2914.24:587:12
3014.24:597:11
3114.25:007:10

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.32 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 7.39 kWh/m² in June across the year — July's 7.32 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.5Intense
57.5Intense
67.5Intense
77.5Intense
87.5Intense
97.5Intense
107.5Intense
117.4Intense
127.4Intense
137.4Intense
147.4Intense
157.4Intense
167.3Intense
177.3Intense
187.3Intense
197.3Intense
207.2Intense
217.2Intense
227.2Intense
237.1Intense
247.1Intense
257.1Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
306.9Intense
316.9Intense
Planning a trip in July

Is July a good time to visit Brighton?

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

4.6
Sightseeing
7th-best month of the year
7.2
Beach & pool
4th-best month of the year

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

What to pack for Brighton in July

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

In July, Brighton sees daytime highs around 89°F and nights near 61°F. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Brighton in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Brighton peaks around July 12 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 12UV 11Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar7High
Apr6High
May7Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Brighton 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 Brighton is worst in August — around 21 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (May, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateAug 1620 µg/m³May 1113 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb15Moderate
Mar16Moderate
Apr13Moderate
May13Moderate
Jun14Moderate
Jul14Moderate
Aug21Moderate
Sep13Moderate
Oct15Moderate
Nov15Moderate
Dec16Moderate
Location & terrain

Where is Brighton?

Brighton sits at 40.0°N, 104.8°W, 4,984 ft above sea level, in United States. The nearest listed city is Northglenn, 11 mi away.

Topography around Brighton

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

Within 2 miles, the terrain around Brighton has only modest variations in elevation — a maximum elevation change of 194 ft around an average of 4,990 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 640 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,626 ft.

The land around Brighton is covered by artificial surfaces (34%), grassland (32%) and cropland (21%) within 2 miles, grassland (51%) and cropland (28%) within 10 miles, and grassland (48%), trees (22%) and cropland (20%) within 50 miles.

2 miles
194 ft
10 miles
640 ft
50 miles
9,626 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Northglenn 11 mi · Thornton 11 mi · Erie 13 mi · Commerce City 14 mi · Sherrelwood 14 mi · Lafayette 14 mi · Broomfield 15 mi · Westminster 16 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 Brighton (39.9853°, -104.8205°, elevation 4,984 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).