Glendora weather in April

In April, Glendora sees average daytime highs of 67°F and overnight lows near 47°F, with 1.1 in of precipitation across 4.3 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 64°F in the first days to 70°F by the end. The sky is clear or mostly clear about 56% 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 18 min by month's end. Set against the rest of the year, April is Glendora's 8th-clearest and 3rd-windiest month. For the whole year in context, see Glendora's year-round climate.

Daytime high
67°
7th warmest
Overnight low
47°
6th coldest
Precipitation
1.1 in
4.3 wet days
Daylight
12 h 54 min
5:26 AM – 6:17 PM
Cloud cover
39%
8th clearest
Wind
4 mph
3rd windiest
Solar energy
6.73 kWh/m²
Travel score
7.3
out of 10

Glendora is city in the San Gabriel Valley in Los Angeles County, California, United States.

Density
1,027/km²
people per km²
Founded
1887

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 64°F in the first days to 70°F by the end.

A typical April day in Glendora reaches about 67°F in the afternoon and slips back to 47°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 54°F and 78°F. Set against its neighbours, April runs about 5°F warmer than March and about 6°F cooler than May.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
16445
26445
36445
46445
56445
66445
76445
86545
96546
106546
116546
126546
136646
146646
156646
166747
176747
186747
196747
206847
216848
226848
236948
246949
256949
266949
277049
287049
297050
307050

Glendora 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 daysSnow daysDaylight (hours)Travel score
Jan58° / 41°3.661.6104.7
Feb58° / 42°3.972.110.74.7
Mar62° / 44°2.46.91.211.75.9
Apr67° / 47°1.14.30.612.87.3
May73° / 52°0.53.3013.88.3
Jun80° / 58°0.20.9014.28.6
Jul86° / 63°0.42.60146.6
Aug87° / 64°0.32.3013.36.2
Sep83° / 61°0.32012.27.8
Oct74° / 54°0.82.7011.18.7
Nov65° / 47°0.930.410.27.2
Dec57° / 41°2.45.30.99.84.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% 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 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16535
26634
36634
46733
56733
66832
76832
86832
96832
106832
116832
126931
136931
147030
157030
167129
177129
187129
197129
207228
217228
227228
237228
247228
257228
267228
277228
287228
297228
307228

Chance of precipitation in April

Any precipitationSnow

Glendora gets around 1.1 in of rain and snow over 4.3 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 14% and peaks near 19% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)Snow chance (%)
1194
2194
3194
4183
5183
6173
7173
8173
9163
10163
11153
12153
13143
14143
15133
16132
17122
18122
19122
20121
21121
22111
23111
24111
25111
26111
27110
28110
29120
30120

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 4 mph in April.

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

0246810151015202530
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in April

DaylightNight

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

Days grow by about 60 minutes over April. Sunrise moves from 5:47 AM to 5:09 AM, and sunset from 6:06 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:476:06
212.45:456:06
312.45:446:07
412.45:426:08
512.55:416:09
612.55:406:10
712.55:386:10
812.65:376:11
912.65:356:12
1012.65:346:13
1112.75:336:13
1212.75:316:14
1312.75:306:15
1412.85:296:16
1512.85:276:16
1612.95:266:17
1712.95:256:18
1812.95:246:19
1913.05:226:20
2013.05:216:20
2113.05:206:21
2213.15:196:22
2313.15:176:23
2413.15:166:24
2513.25:156:24
2613.25:146:25
2713.25:136:26
2813.35:126:27
2913.35:106:27
3013.35:096:28

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.73 kWh/m².

For context, solar energy here swings from a low near 2.98 kWh/m² to a high of 8.23 kWh/m² in June across the year — April's 6.73 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.3Intense
76.4Intense
86.4Intense
96.5Intense
106.5Intense
116.5Intense
126.6Intense
136.6Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.9Intense
206.9Intense
217.0Intense
227.0Intense
237.0Intense
247.0Intense
257.1Intense
267.1Intense
277.1Intense
287.2Intense
297.2Intense
307.2Intense
Planning a trip in April

Is April a good time to visit Glendora?

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

7.3
Sightseeing
5th-best month of the year
3.4
Beach & pool
7th-best month of the year

April is one of the better times to visit Glendora for general sightseeing.

What to pack for Glendora in April

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

In April, Glendora sees daytime highs around 67°F and nights near 47°F. Pack sun protection. About 4 days see rain.

sun protection

Sea temperature near Glendora in April

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

The sea at the nearest coast (about 34 mi away) is warmest in August at about 68°F and coldest in February near 59°F.

It's comfortable for a long swim from Aug 4 to Sep 13 — about 1.3 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan59Bracing
Feb59Bracing
Mar59Bracing
Apr59Cool
May62Cool
Jun65Cool
Jul67Cool
Aug68Refreshing
Sep68Refreshing
Oct66Cool
Nov63Cool
Dec60Cool

UV index in Glendora 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 Glendora peaks around July 11 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJul 11UV 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 Glendora 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 Glendora is worst in September — around 39 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (May, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateSep 1537 µg/m³May 1612 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar16Moderate
Apr14Moderate
May12Moderate
Jun15Moderate
Jul18Moderate
Aug22Moderate
Sep39Poor
Oct15Moderate
Nov17Moderate
Dec14Moderate
Location & terrain

Where is Glendora?

Glendora sits at 34.1°N, 117.9°W, 774 ft above sea level, in United States. The nearest listed city is Azusa, 2.5 mi away.

Topography around Glendora

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

Within 2 miles, the terrain around Glendora has large variations in elevation — a maximum elevation change of 2,031 ft around an average of 938 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,164 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,013 ft.

The land around Glendora is covered by artificial surfaces (61%) and trees (20%) within 2 miles, artificial surfaces (41%), shrubs (28%) and trees (23%) within 10 miles, and artificial surfaces (26%) and grassland (20%) within 50 miles.

2 miles
2,031 ft
10 miles
5,164 ft
50 miles
10,013 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Azusa 2.5 mi · Covina 3.7 mi · San Dimas 3.7 mi · La Verne 6.2 mi · West Covina 6.2 mi · Duarte 6.2 mi · Baldwin Park 6.2 mi · Monrovia 7.5 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 Glendora (34.1361°, -117.8653°, elevation 774 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).