Glendale in Summer
In summer (June, July and August), Glendale sees average daytime highs around 104°F and overnight lows near 81°F, with 1.8 in of rain over about 8 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 104°F. The sky is clear or mostly clear about 73% of the time across summer, and the air most often feels dry.
Summer is Glendale's weakest season of the year to visit on our travel score. For the whole year in context, see Glendale's year-round climate.
- Avg daytime high
- 104°F
- warmest season of the year
- Avg overnight low
- 81°F
- Rainfall
- 1.8 in
- 8 wet days
- Avg wind
- 5 mph
- Travel score
- 0.3
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Glendale in Summer
Across summer, daytime highs hold fairly steady around 104°F.
A typical summer day in Glendale reaches about 104°F and drops to 81°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Glendale
Once humidity and wind are folded in, summer brings about 92 days that feel above 90°F and 0 that feel at or below 32°F.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Glendale weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 66° / 43° | 1.1 | 3.4 | 10 | 7.5 |
| Feb | 70° / 46° | 1.3 | 3.9 | 10.8 | 7.7 |
| Mar | 77° / 52° | 0.9 | 2.7 | 11.7 | 8.4 |
| Apr | 85° / 58° | 0.3 | 1.2 | 12.8 | 7.0 |
| May | 94° / 68° | 0.1 | 0.8 | 13.7 | 3.8 |
| Jun | 103° / 76° | 0.1 | 0.3 | 14.2 | 0.6 |
| Jul | 105° / 83° | 0.7 | 3.2 | 14 | 0.0 |
| Aug | 104° / 83° | 1.1 | 4 | 13.2 | 0.2 |
| Sep | 99° / 76° | 0.9 | 2.9 | 12.2 | 1.9 |
| Oct | 88° / 63° | 0.7 | 1.9 | 11.2 | 5.8 |
| Nov | 75° / 51° | 0.6 | 2 | 10.3 | 8.6 |
| Dec | 65° / 43° | 1.0 | 3.2 | 9.8 | 7.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 73% of the time across summer.
Chance of precipitation in Summer
Glendale gets around 1.8 in of rain over 8 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 06 min in early June to 12 h 48 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.6 kWh/m².
Is summer a good time to visit Glendale?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Glendale.
What to pack for Glendale in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Glendale sees daytime highs around 104°F and nights near 81°F. Pack light clothes and sun protection. About 8 days see rain.
UV index in Glendale in Summer
Clear-sky midday UV across summer averages 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 Glendale peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 5 | 7 | 9 | 11 | 11 | 11 | 9 | 6 | 4 | 3 |
| Level | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 9 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Glendale in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Glendale is worst in June — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 11 | 12 | 12 | 17 | 15 | 12 | 11 | 13 | 10 | 9 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 11 | Good |
| Apr | 12 | Moderate |
| May | 12 | Moderate |
| Jun | 17 | Moderate |
| Jul | 15 | Moderate |
| Aug | 12 | Good |
| Sep | 11 | Good |
| Oct | 13 | Moderate |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Glendale?
Glendale sits at 33.5°N, 112.2°W, 1,152 ft above sea level, in United States. The nearest listed city is Maryvale, 2.5 mi away.
Topography around Glendale
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Glendale.
Within 2 miles, the terrain around Glendale has only modest variations in elevation — a maximum elevation change of 92 ft around an average of 1,152 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,575 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,044 ft.
The land around Glendale is covered by artificial surfaces (79%) within 2 miles, artificial surfaces (69%) within 10 miles, and shrubs (54%) within 50 miles.
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
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 Glendale (33.5386°, -112.186°, elevation 1,152 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.