Barstow weather in July

In July, Barstow sees average daytime highs of 98°F and overnight lows near 72°F, with 0.2 in of rain across 1.1 wet days and about 14.1 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 98°F through the month. The sky is clear or mostly clear about 80% of the time in July, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of July to 13 h 48 min by month's end. Set against the rest of the year, July is Barstow's 5th-clearest and 5th-windiest month. For the whole year in context, see Barstow's year-round climate.

Daytime high
98°
1st warmest
Overnight low
72°
12th coldest
Rainfall
0.2 in
1.1 wet days
Daylight
14 h 06 min
4:50 AM – 6:58 PM
Cloud cover
20%
5th clearest
Wind
8 mph
5th windiest
Solar energy
8.09 kWh/m²
Travel score
2.2
out of 10

Barstow is city in San Bernardino County, California, United States.

Density
221/km²
people per km²
Founded
1947

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 98°F through the month.

A typical July day in Barstow reaches about 98°F in the afternoon and slips back to 72°F overnight — a 26°F spread between the day's warmth and the night's chill. On most days the high lands between 92°F and 104°F. Set against its neighbours, July runs about 6°F warmer than June and on par with August.

60°80°100°151015202531
Avg high (°F)Avg low (°F)
19770
29770
39770
49770
59871
69871
79871
89871
99871
109871
119871
129871
139872
149872
159872
169872
179872
189872
199872
209872
219872
229872
239972
249972
259972
269972
279972
289972
299972
309972
319972

How July really feels in Barstow

Once humidity and wind are folded in, July averages 31 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
31
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.

Barstow weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan58° / 38°0.73.39.95.2
Feb62° / 41°0.93.710.76.3
Mar68° / 46°0.52.511.77.8
Apr74° / 50°0.31.512.98.7
May83° / 57°0.10.313.87.8
Jun92° / 65°0.00.214.34.4
Jul98° / 72°0.21.114.12.2
Aug97° / 71°0.10.613.32.5
Sep90° / 64°0.10.612.25.2
Oct78° / 54°0.21.111.18.7
Nov65° / 43°0.31.410.27.6
Dec57° / 37°0.62.59.74.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 80% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 9% of July, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3928
4919
5919
6919
79010
89010
99010
109010
118911
128911
138911
148911
158812
168812
178812
188812
198713
208713
218713
228713
238713
248614
258614
268614
278614
288614
298713
308812
318812

Chance of precipitation in July

Any precipitation

Barstow gets around 0.2 in of rain over 1.1 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 3% and peaks near 4% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
22
32
42
52
63
73
83
93
103
114
124
134
144
154
164
174
184
194
204
214
224
234
244
254
264
273
283
293
303
313

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196310
296310
396310
494420
594420
693520
793520
892620
992620
1092620
1191720
1291720
1390721
1490721
1589821
1689821
1789821
1889821
1988921
2088921
2188921
2288921
2388921
2487931
2587931
2687931
2787931
2887931
2988831
3089830
3189830

Wind in July

Winds average 8 mph in July.

Across July, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 18 min at the start of July to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 4:42 AM to 5:00 AM, and sunset from 7:01 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:427:01
214.34:427:01
314.34:437:01
414.34:437:01
514.34:447:01
614.34:447:01
714.34:457:00
814.34:457:00
914.24:467:00
1014.24:467:00
1114.24:476:59
1214.24:476:59
1314.24:486:59
1414.24:496:58
1514.14:496:58
1614.14:506:58
1714.14:506:57
1814.14:516:57
1914.14:526:56
2014.14:526:56
2114.04:536:55
2214.04:546:55
2314.04:546:54
2414.04:556:53
2513.94:566:53
2613.94:576:52
2713.94:576:51
2813.94:586:50
2913.84:596:50
3013.85:006:49
3113.85:006:48

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 8.09 kWh/m².

For context, solar energy here swings from a low near 3.12 kWh/m² to a high of 8.65 kWh/m² in June across the year — July's 8.09 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.5Intense
28.4Intense
38.4Intense
48.4Intense
58.3Intense
68.3Intense
78.3Intense
88.3Intense
98.2Intense
108.2Intense
118.2Intense
128.2Intense
138.2Intense
148.1Intense
158.1Intense
168.1Intense
178.1Intense
188.1Intense
198.0Intense
208.0Intense
218.0Intense
228.0Intense
238.0Intense
247.9Intense
257.9Intense
267.9Intense
277.9Intense
287.8Intense
297.8Intense
307.8Intense
317.8Intense
Planning a trip in July

Is July a good time to visit Barstow?

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

2.2
Sightseeing
12th-best month of the year
5.8
Beach & pool
7th-best month of the year

July is a weaker month for outdoor sightseeing in Barstow.

What to pack for Barstow in July

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

In July, Barstow sees daytime highs around 98°F and nights near 72°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Barstow 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 Barstow peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 17UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate
Location & terrain

Where is Barstow?

Barstow sits at 34.9°N, 117.0°W, 2,175 ft above sea level, in United States. The nearest listed city is Barstow Heights, 2.5 mi away.

Topography around Barstow

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

Within 2 miles, the terrain around Barstow has only modest variations in elevation — a maximum elevation change of 525 ft around an average of 2,211 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,096 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,891 ft.

The land around Barstow is covered by bare terrain (55%) and artificial surfaces (35%) within 2 miles, bare terrain (91%) within 10 miles, and bare terrain (69%) within 50 miles.

2 miles
525 ft
10 miles
2,096 ft
50 miles
8,891 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Barstow Heights 2.5 mi · Apple Valley 29 mi · Victorville 29 mi · Adelanto 31 mi · Hesperia 36 mi · Highland 54 mi · San Bernardino 57 mi · Rialto 58 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 Barstow (34.8986°, -117.0228°, elevation 2,175 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).