Barstow Heights weather in April

In April, Barstow Heights sees average daytime highs of 73°F and overnight lows near 49°F, with 0.4 in of rain across 1.8 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 69°F in the first days to 77°F by the end. The sky is clear or mostly clear about 68% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 24 min by month's end. Set against the rest of the year, April is Barstow Heights's 8th-clearest and 1st-windiest month. For the whole year in context, see Barstow Heights's year-round climate.

Daytime high
73°
7th warmest
Overnight low
49°
6th coldest
Rainfall
0.4 in
1.8 wet days
Daylight
12 h 54 min
5:22 AM – 6:15 PM
Cloud cover
29%
8th clearest
Wind
9 mph
1st windiest
Solar energy
7.37 kWh/m²
Travel score
8.6
out of 10

Barstow Heights is human settlement in San Bernardino County, California, United States of America.

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 69°F in the first days to 77°F by the end.

A typical April day in Barstow Heights reaches about 73°F in the afternoon and slips back to 49°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 61°F and 84°F. Set against its neighbours, April runs about 6°F warmer than March and about 9°F cooler than May.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
16947
26947
36947
47047
57047
67047
77047
87047
97148
107148
117148
127148
137148
147249
157249
167349
177349
187350
197450
207450
217451
227551
237551
247551
257652
267652
277652
287753
297753
307753

How April really feels in Barstow Heights

Once humidity and wind are folded in, April 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

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

Barstow Heights weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan57° / 39°0.83.69.94.9
Feb60° / 41°1.03.910.75.8
Mar67° / 45°0.62.711.77.5
Apr73° / 49°0.41.812.98.6
May81° / 57°0.10.813.88.2
Jun91° / 64°0.10.414.34.9
Jul96° / 70°0.3214.12.7
Aug96° / 70°0.21.213.33.0
Sep89° / 64°0.1112.25.6
Oct77° / 54°0.2111.18.8
Nov65° / 44°0.31.510.27.4
Dec56° / 38°0.82.99.74.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27822
37822
47822
57822
67723
77822
87822
97921
107921
117921
127921
138020
148020
158020
168119
178119
188218
198317
208317
218317
228317
238317
248416
258416
268416
278416
288416
298416
308515

Chance of precipitation in April

Any precipitation

Barstow Heights gets around 0.4 in of rain over 1.8 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 8% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
18
28
38
47
57
67
77
87
96
106
116
126
136
145
155
165
175
185
195
205
215
225
235
245
255
265
275
284
294
304

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April 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%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in April

Winds average 9 mph in April, the windiest month of the year.

Across April, 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.

051015151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 5:43 AM to 5:05 AM, and sunset from 6:03 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:436:03
212.45:426:03
312.45:406:04
412.45:396:05
512.55:376:06
612.55:366:07
712.55:356:07
812.65:336:08
912.65:326:09
1012.75:306:10
1112.75:296:11
1212.75:286:11
1312.85:266:12
1412.85:256:13
1512.85:246:14
1612.95:226:15
1712.95:216:16
1812.95:206:16
1913.05:186:17
2013.05:176:18
2113.15:166:19
2213.15:146:20
2313.15:136:20
2413.25:126:21
2513.25:116:22
2613.25:106:23
2713.35:086:24
2813.35:076:24
2913.35:066:25
3013.45:056:26

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 7.37 kWh/m².

For context, solar energy here swings from a low near 3.13 kWh/m² to a high of 8.62 kWh/m² in June across the year — April's 7.37 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.8Intense
36.8Intense
46.9Intense
56.9Intense
67.0Intense
77.0Intense
87.0Intense
97.1Intense
107.1Intense
117.2Intense
127.2Intense
137.3Intense
147.3Intense
157.4Intense
167.4Intense
177.5Intense
187.5Intense
197.5Intense
207.6Intense
217.6Intense
227.6Intense
237.7Intense
247.7Intense
257.8Intense
267.8Intense
277.8Intense
287.8Intense
297.9Intense
307.9Intense
Planning a trip in April

Is April a good time to visit Barstow Heights?

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

8.6
Sightseeing
2nd-best month of the year
6.3
Beach & pool
7th-best month of the year

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

What to pack for Barstow Heights in April

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

In April, Barstow Heights sees daytime highs around 73°F and nights near 49°F. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Barstow Heights in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Barstow Heights 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

Air quality in Barstow Heights in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Barstow Heights is worst in September — around 30 µg/m³ PM2.5 (moderate), about 5.3× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1427 µg/m³Dec 146 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar9Good
Apr9Good
May9Good
Jun16Moderate
Jul12Good
Aug15Moderate
Sep30Moderate
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is Barstow Heights?

Barstow Heights sits at 34.9°N, 117.1°W, 2,559 ft above sea level, in United States. The nearest listed city is Barstow, 2.5 mi away.

Topography around Barstow Heights

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

Within 2 miles, the terrain around Barstow Heights has significant variations in elevation — a maximum elevation change of 948 ft around an average of 2,523 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,077 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,855 ft.

The land around Barstow Heights is covered by bare terrain (82%) within 2 miles, bare terrain (89%) within 10 miles, and bare terrain (67%) within 50 miles.

2 miles
948 ft
10 miles
2,077 ft
50 miles
8,855 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
April weather nearby: Barstow 2.5 mi · Apple Valley 27 mi · Victorville 27 mi · Adelanto 28 mi · Hesperia 34 mi · Highland 52 mi · San Bernardino 54 mi · Rialto 56 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 Heights (34.8697°, -117.0562°, elevation 2,559 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).