Chino Hills weather in March

In March, Chino Hills sees average daytime highs of 66°F and overnight lows near 48°F, with 2.4 in of rain across 6.3 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 64°F in the first days to 67°F by the end. The sky is clear or mostly clear about 45% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Chino Hills's 10th-clearest and 4th-windiest month. For the whole year in context, see Chino Hills's year-round climate.

Daytime high
66°
9th warmest
Overnight low
48°
4th coldest
Rainfall
2.4 in
6.3 wet days
Daylight
11 h 42 min
6:09 AM – 5:53 PM
Cloud cover
46%
10th clearest
Wind
3 mph
4th windiest
Solar energy
5.29 kWh/m²
Travel score
6.8
out of 10

Chino Hills is city in San Bernardino County, California, United States.

Density
676/km²
people per km²
Founded
1991

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 64°F in the first days to 67°F by the end.

A typical March day in Chino Hills reaches about 66°F in the afternoon and slips back to 48°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 77°F. Set against its neighbours, March runs about 3°F warmer than February and about 4°F cooler than April.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16446
26446
36446
46447
56547
66547
76547
86547
96547
106647
116648
126648
136648
146648
156648
166748
176748
186748
196749
206749
216749
226749
236749
246749
256749
266749
276749
286749
296749
306749
316749

Chino Hills weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan63° / 44°3.65.9106.2
Feb63° / 46°4.06.610.76.2
Mar66° / 48°2.46.311.76.8
Apr70° / 51°1.03.712.87.8
May74° / 55°0.42.213.78.6
Jun79° / 59°0.10.314.28.9
Jul85° / 64°0.10.5147.1
Aug87° / 65°0.00.213.36.5
Sep84° / 63°0.20.912.27.4
Oct78° / 57°0.72.611.18.7
Nov69° / 49°1.02.810.28.0
Dec62° / 44°2.55.39.86.3

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25248
35248
45347
55446
65545
75644
85743
95842
105941
116139
126238
136238
146337
156337
166436
176436
186337
196337
206337
216337
226337
236238
246238
256238
266238
276238
286238
296238
306337
316337

Chance of precipitation in March

Any precipitation

Chino Hills gets around 2.4 in of rain over 6.3 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 27% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
127
226
326
425
525
624
723
823
922
1021
1121
1220
1320
1420
1519
1619
1719
1819
1919
2019
2119
2219
2319
2419
2519
2618
2718
2817
2917
3016
3116

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
6991
7991
8991
9991
10991
11982
12982
13982
14982
15982
16982
17982
18982
19982
20982
21982
22982
23982
24982
25982
26991
27991
28991
29991
30991
31991

Wind in March

Winds average 3 mph in March.

Across March, daily wind ranges from about 3 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 12 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over March. Sunrise moves from 6:28 AM to 5:48 AM, and sunset from 5:40 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:285:40
211.26:275:41
311.36:265:42
411.36:245:43
511.36:235:44
611.46:225:45
711.46:215:46
811.56:195:46
911.56:185:47
1011.56:175:48
1111.66:155:49
1211.66:145:50
1311.66:135:50
1411.76:115:51
1511.76:105:52
1611.76:095:53
1711.86:075:54
1811.86:065:54
1911.86:045:55
2011.96:035:56
2111.96:025:57
2212.06:005:58
2312.05:595:58
2412.05:575:59
2512.15:566:00
2612.15:556:01
2712.15:536:01
2812.25:526:02
2912.25:506:03
3012.25:496:04
3112.35:486:04

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.29 kWh/m².

For context, solar energy here swings from a low near 2.95 kWh/m² to a high of 8.05 kWh/m² in June across the year — March's 5.29 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.6Bright
44.6Bright
54.7Bright
64.8Bright
74.8Bright
84.9Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.5Bright
225.6Bright
235.6Bright
245.6Bright
255.7Bright
265.7Bright
275.8Bright
285.8Bright
295.8Bright
305.9Bright
315.9Bright
Planning a trip in March

Is March a good time to visit Chino Hills?

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

6.8
Sightseeing
8th-best month of the year
2.8
Beach & pool
9th-best month of the year

March is a reasonable time to visit Chino Hills for sightseeing.

What to pack for Chino Hills in March

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

In March, Chino Hills sees daytime highs around 66°F and nights near 48°F. Worth packing: sun protection. About 6 days see rain.

sun protection

Sea temperature near Chino Hills in March

The nearest coast averages about 59°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 mi away) is warmest in August at about 69°F and coldest in February near 59°F.

It's comfortable for a long swim from Jul 13 to Sep 28 — about 2.6 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb59Cool
Mar59Cool
Apr60Cool
May63Cool
Jun65Cool
Jul68Refreshing
Aug69Refreshing
Sep69Refreshing
Oct67Cool
Nov64Cool
Dec60Cool

UV index in Chino Hills in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chino Hills peaks around July 12 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highHighModerateJul 12UV 11Dec 16UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Chino Hills in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chino Hills is worst in September — around 49 µg/m³ PM2.5 (poor), about 4.0× the cleanest month (May, 12 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1447 µg/m³May 1713 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar19Moderate
Apr17Moderate
May12Moderate
Jun17Moderate
Jul19Moderate
Aug32Moderate
Sep49Poor
Oct21Moderate
Nov21Moderate
Dec18Moderate
Location & terrain

Where is Chino Hills?

Chino Hills sits at 34.0°N, 117.8°W, 860 ft above sea level, in United States. The nearest listed city is Diamond Bar, 3.7 mi away.

Topography around Chino Hills

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

Within 2 miles, the terrain around Chino Hills has only modest variations in elevation — a maximum elevation change of 755 ft around an average of 984 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,827 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,574 ft.

The land around Chino Hills is covered by grassland (41%) and artificial surfaces (34%) within 2 miles, artificial surfaces (54%) within 10 miles, and artificial surfaces (26%) within 50 miles.

2 miles
755 ft
10 miles
1,827 ft
50 miles
10,574 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Diamond Bar 3.7 mi · Chino 4.3 mi · Pomona 4.3 mi · Walnut 6.2 mi · Montclair 6.8 mi · La Verne 7.5 mi · Claremont 7.5 mi · Ontario 8.1 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 Chino Hills (33.9938°, -117.7589°, elevation 860 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).