Parker weather in July

In July, Parker sees average daytime highs of 85°F and overnight lows near 58°F, with 2.1 in of rain across 9.4 wet days and about 14.5 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 85°F through the month. The sky is clear or mostly clear about 39% 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 06 min by month's end. Set against the rest of the year, July is Parker's 9th-clearest and 11th-windiest month. For the whole year in context, see Parker's year-round climate.

Daytime high
85°
1st warmest
Overnight low
58°
12th coldest
Rainfall
2.1 in
9.4 wet days
Daylight
14 h 30 min
4:49 AM – 7:21 PM
Cloud cover
49%
9th clearest
Wind
6 mph
11th windiest
Solar energy
7.27 kWh/m²
Travel score
5.5
out of 10

Parker is town in Douglas County, Colorado, United States.

Density
934/km²
people per km²
Founded
1981

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 85°F through the month.

A typical July day in Parker reaches about 85°F in the afternoon and slips back to 58°F overnight — a 27°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 93°F. Set against its neighbours, July runs about 6°F warmer than June and about 2°F warmer than August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18456
28556
38556
48557
58557
68557
78557
88557
98558
108558
118558
128558
138658
148658
158658
168658
178658
188658
198558
208558
218558
228558
238558
248558
258558
268558
278558
288458
298458
308458
318458

How July really feels in Parker

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.

Parker 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.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 17°0.64.34.69.50.3
Feb44° / 19°0.64.64.810.41.0
Mar52° / 26°1.66.95.511.73.2
Apr58° / 32°2.58.85.1134.5
May68° / 42°2.910.61.414.16.2
Jun80° / 52°2.09014.76.7
Jul85° / 58°2.19.4014.55.5
Aug83° / 56°1.78.3013.66.3
Sep76° / 48°1.25.70.412.37.7
Oct63° / 36°1.45.32.210.96.4
Nov50° / 25°0.954.59.82.8
Dec41° / 17°0.73.84.19.30.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 29% of July, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27129
37129
47129
57129
67030
77030
87030
97030
107030
117030
127030
137030
147030
157030
166931
176931
186832
196832
206733
216733
226634
236634
246535
256535
266436
276337
286337
296238
306238
316337

Chance of precipitation in July

Any precipitation

Parker gets around 2.1 in of rain over 9.4 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 30% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
227
327
428
528
629
729
830
930
1030
1131
1231
1331
1431
1531
1631
1731
1831
1931
2031
2131
2231
2331
2431
2531
2631
2731
2831
2931
3031
3131

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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1964
2955
3955
4946
5937
6928
7928
8919
99010
109010
118911
128911
138812
148812
158812
168812
178812
188812
198713
208713
218713
228713
238614
248614
258614
268515
278515
288515
298515
308515
318515

Wind in July

Winds average 6 mph in July.

Across July, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
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 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:40 AM to 5:01 AM, and sunset from 7:25 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:407:25
214.84:407:25
314.74:417:25
414.74:417:25
514.74:427:25
614.74:427:24
714.74:437:24
814.74:437:24
914.74:447:24
1014.64:447:23
1114.64:457:23
1214.64:467:23
1314.64:467:22
1414.64:477:22
1514.64:487:21
1614.54:497:21
1714.54:497:20
1814.54:507:20
1914.54:517:19
2014.44:527:18
2114.44:537:18
2214.44:537:17
2314.44:547:16
2414.34:557:15
2514.34:567:15
2614.34:577:14
2714.34:587:13
2814.24:587:12
2914.24:597:11
3014.25:007:10
3114.15:017:09

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.27 kWh/m².

For context, solar energy here swings from a low near 2.54 kWh/m² to a high of 7.44 kWh/m² in June across the year — July's 7.27 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
77.4Intense
87.4Intense
97.4Intense
107.4Intense
117.4Intense
127.4Intense
137.4Intense
147.3Intense
157.3Intense
167.3Intense
177.3Intense
187.3Intense
197.2Intense
207.2Intense
217.2Intense
227.1Intense
237.1Intense
247.1Intense
257.0Intense
267.0Intense
277.0Intense
286.9Intense
296.9Intense
306.9Intense
316.9Intense
Planning a trip in July

Is July a good time to visit Parker?

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

5.5
Sightseeing
6th-best month of the year
7.2
Beach & pool
2nd-best month of the year

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

What to pack for Parker in July

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

In July, Parker sees daytime highs around 85°F and nights near 58°F. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Parker 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 Parker peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 13UV 11Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar7High
Apr6High
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec2Low

Air quality in Parker 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 Parker 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 Parker?

Parker sits at 39.5°N, 104.8°W, 5,869 ft above sea level, in United States. The nearest listed city is Centennial, 7.5 mi away.

Topography around Parker

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

Within 2 miles, the terrain around Parker has only modest variations in elevation — a maximum elevation change of 427 ft around an average of 5,928 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,188 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,459 ft.

The land around Parker is covered by grassland (48%) and artificial surfaces (40%) within 2 miles, grassland (66%) and artificial surfaces (21%) within 10 miles, and grassland (55%) and trees (25%) within 50 miles.

2 miles
427 ft
10 miles
1,188 ft
50 miles
9,459 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Centennial 7.5 mi · Castlewood 8.7 mi · Southglenn 11 mi · Castle Rock 11 mi · Highlands Ranch 11 mi · Greenwood Village 12 mi · Englewood 15 mi · Aurora 15 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 Parker (39.5186°, -104.7614°, elevation 5,869 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).