Glendale, Arizona, located in the northern part of the state, experiences a desert climate characterized by long, scorching summers and short, mild winters.
The hottest month is July, with average highs reaching 106°F and lows around 83°F.
On the other hand, the cool season spans from November to February, where temperatures drop below 73°F.
The weather conditions in Glendale are typically dry, with very little precipitation throughout the year.
The area receives about 9.1 inches of rain annually, contributing to its arid environment.
December has the shortest days, averaging around 10 hours of daylight.
Climate data from Phoenix Sky Harbor International Airport help illustrate these patterns, providing a detailed understanding of Glendale’s weather.
This historical weather data can be very useful for residents and visitors planning their activities year-round.
Average Temperature in Glendale, Arizona
Glendale, Arizona experiences a wide range of temperatures throughout the year.
The hot season lasts from late May to mid-September, with daily highs often exceeding 98°F.
Monthly average high temperatures:
- January: 67°F
- February: 71°F
- March: 78°F
- April: 86°F
- May: 95°F
- June: 104°F
- July: 106°F
- August: 105°F
- September: 99°F
- October: 88°F
- November: 75°F
- December: 67°F
Monthly average low temperatures:
- January: 45°F
- February: 48°F
- March: 53°F
- April: 60°F
- May: 68°F
- June: 76°F
- July: 83°F
- August: 82°F
- September: 76°F
- October: 64°F
- November: 52°F
- December: 45°F
Warmest month:
July, with an average high of 106°F and a low of 83°F.
Coolest month:
January, with an average high of 67°F and a low of 45°F.
During the cooler months, from late November to late February, temperatures are more comfortable.
Daytime highs hover around the mid-60s to low 70s, while nighttime lows can dip into the mid-40s.
Temperatures in Glendale can vary significantly between day and night, especially during the warm months, offering warm days and cooler nights.
This makes the climate unique and mostly pleasant throughout the year.
Average Precipitation in Glendale, Arizona
Glendale, Arizona experiences a dry climate with limited rainfall and no significant snowfall throughout the year.
Average Rainfall in Glendale, Arizona
Glendale has an arid climate, which means it rarely rains. The yearly average precipitation is approximately 9.1 inches.
Rainfall is unevenly distributed, with some months being wetter than others.
August is the wettest month, getting about 1.2 inches of rainfall.
On the other hand, months like April and May see very little rain, making them some of the driest periods.
The city experiences dry spells, especially from January to May and from October to November.
These months usually have less than 0.2 inches of precipitation.
Overall, the heavy rains are infrequent and usually brief, contributing to the city’s dry climate.
Average Snow in Glendale, Arizona
Snowfall in Glendale is virtually nonexistent. The city rarely experiences snow, given its desert climate and low elevation.
Because of this, winter activities like snowball fights or skiing are not an option here.
Residents and visitors enjoy a mild winter with temperatures rarely dropping below freezing.
This lack of snow and ice minimizes the need for snow removal services and winter preparations.
The clear winter skies provide more sunny days, making Glendale a favorable spot for those who prefer warmer winters.
Residents can enjoy outdoor activities year-round, without the interruption of snow.
Average Sun in Glendale, Arizona
Glendale, Arizona experiences a significant amount of sunlight throughout the year, affecting everything from daily activities to energy usage.
Average Daily Shortwave Solar Energy in Glendale, Arizona
Glendale sees a high level of daily shortwave solar energy. This measurement is essential for understanding potential solar power generation and the intensity of sunlight.
On average, shortwave solar energy in Glendale ranges between 5.0 kWh/m² and 7.0 kWh/m² depending on the time of year.
The summer months, particularly June and July, are when solar energy peaks, providing the most sunlight.
Winter months, like December and January, see reduced levels of solar energy, though still significant.
The clear skies and minimal cloud cover contribute to the high solar energy levels year-round.
This abundant sunlight impacts daily life, contributing to high temperatures and the effectiveness of solar panels.
The UV index is particularly high during the summer, emphasizing the need for sun protection.
Average Humidity in Glendale, Arizona
Glendale, Arizona experiences varying levels of humidity throughout the year. The relative humidity is higher in the cooler months and lower in the hotter months.
Monthly Average Humidity
| Month | Average Relative Humidity (%) |
|---|---|
| January | 49.0 |
| February | 45.0 |
| March | 38.0 |
| April | 27.0 |
| May | 24.0 |
| June | 19.0 |
| July | 28.0 |
| August | 32.0 |
| September | 29.0 |
| October | 31.0 |
| November | 41.0 |
| December | 51.0 |
The dew point is a measure of how comfortable or dry the air feels.
In Glendale, the dew point can be quite low, especially in the summer months.
Example Dew Points
- January: 32°F
- July: 55°F
June is noted to have the lowest humidity levels at around 19%. Conversely, December has the highest humidity, averaging around 51%.
The annual average relative humidity in Glendale is approximately 36%.
These levels can make the air feel very dry, especially in the hotter months.
This variation in relative humidity is typical for a desert climate, where winters can be relatively more humid and summers very dry.
For more detailed information, visit the average humidity in Glendale. This includes monthly data and charts to help understand the yearly patterns better.
Average Wind in Glendale, Arizona
In Glendale, Arizona, wind patterns and speeds vary throughout the year.
Wind Speed: The average wind speed in Glendale is around 8 mph.
Winds are generally mild but can sometimes pick up during certain times of the year.
Wind Direction: Wind directions in Glendale typically come from the west and southwest. However, local terrain and weather changes can cause winds to shift from other directions occasionally.
- Monthly Averages:
- January: 6 mph
- April: 9 mph
- July: 7 mph
- October: 8 mph
Peak Wind Times: Stronger winds are often observed in spring and late fall.
These periods may experience higher gusts compared to the rest of the year.
Daily Variations: Wind speeds can increase in the late afternoon and early evening due to temperature differences and local weather patterns.
Average Air Quality in Glendale, Arizona
The air quality in Glendale, Arizona, generally falls within the “Good” category as per the Glendale Air Quality Index (AQI) by IQAir. This means that air pollution levels are typically low, posing little or no risk to health.
Primary pollutants in the area include particle pollution (PM2.5) and nitrogen dioxide (NO2).
The average NO2 level recorded in 2016 was 6.76 ppb.
Here is a brief overview of air quality data in Glendale:
| Parameter | Value | Description |
|---|---|---|
| AQI | Good (0-50) | Air quality is satisfactory. |
| PM2.5 Levels | Low | Minimal particle pollution. |
| NO2 Levels | 6.76 ppb | Low nitrogen dioxide levels. |
| Pressure | Varies | Generally stable. |
| Visibility | High | Good visibility year-round. |
Weather conditions like wind and temperature also impact air quality.
For instance, hot weather and low wind can sometimes cause pollutants to linger, but usually, Glendale experiences high visibility and good air quality throughout the year.
Topography of Glendale, Arizona
Glendale, Arizona, has a varied landscape with distinct elevations. This city is located in Maricopa County and falls within the semi-arid climate zone.
The elevation in Glendale ranges from about 1,000 to 1,400 feet above sea level.
The area is characterized by flat plains, which contribute to its mostly suburban layout. The terrain includes gentle slopes and a mix of urban and natural settings.
Key details:
- Elevation Range: 1,000 to 1,400 feet
- Climate Zone: Semi-arid
- Flat Plains: Predominant
These features make Glendale unique, offering clear skies and ample sunlight.
Glendale’s location also offers proximity to the surrounding Phoenix metropolitan area, providing a blend of suburban and urban experiences.
The region’s terrain supports its climate, featuring hot summers and mild winters, typical of a semi-arid climate.
For more detailed information on Glendale’s topographic details, visit Glendale topographic map.
Extreme Weather Events That Occur in Glendale, Arizona
Glendale, Arizona, experiences several extreme weather events throughout the year. These include high temperatures, thunderstorms, and flooding.
High Temperatures
Glendale often sees extremely high temperatures, especially during the summer months.
Temperatures can exceed 100°F regularly. During severe heat waves, the temperature can climb even higher, putting residents at risk for heat-related illnesses.
Thunderstorms and Hail
Isolated thunderstorms can hit Glendale, causing heavy rain and sometimes hail.
During these storms, hailstones can damage cars and property. Thunderstorms also bring lightning, which can start wildfires in dry conditions.
Flooding
Monsoon season brings heavy rains that can lead to flash flooding.
Streets and low-lying areas can quickly become flooded. Isolated thunderstorms are a common cause of such flooding.
Wind and Dust Storms
Strong winds often accompany thunderstorms, causing dust storms that reduce visibility and create hazardous driving conditions.
These dust storms, also known as haboobs, can lead to accidents and respiratory problems.
Heat Index
The combination of high temperatures and moisture can create a high heat index. This makes it feel hotter than the actual temperature, increasing the risk of dehydration and heatstroke.
Weather Advisories and Warnings
Residents should keep an eye on weather advisories to stay informed about severe weather conditions.
Extreme weather events are becoming more frequent and intense, making it crucial to stay prepared and safe.
Best Time of the Year to Visit Glendale, Arizona
Glendale, Arizona offers diverse weather experiences throughout the year, making it ideal for different activities and events depending on the season.
What Is Glendale, Arizona Like in Spring
Spring in Glendale, Arizona, is quite pleasant, especially from February through April.
During these months, temperatures typically range from the mid-50s to high 70s (°F). This makes it a great time for outdoor activities like hiking and attending outdoor festivals. Rainfall is minimal, so you can expect mostly clear skies.
As temperatures gradually rise, March tends to have particularly comfortable days, with highs averaging around 76°F.
Nighttime temperatures remain cool, often in the low 50s. This season also marks the start of blooming flowers, adding a touch of natural beauty to local parks and gardens.
What Is Glendale, Arizona Like in Summer
Summers in Glendale are extremely hot, with temperatures often soaring above 100°F from June to August.
July is typically the hottest month, with average highs around 106°F. The scorching heat makes it less ideal for outdoor activities unless done in the early morning or late evening.
During these months, overnight temperatures rarely drop below 80°F, ensuring warm nights. The dry heat can be intense, so staying hydrated and finding shade is crucial.
If you can handle the heat, summer offers fewer crowds and lower accommodation rates compared to the peak tourist seasons.
What Is Glendale, Arizona Like in Fall
Fall offers more moderate weather, making it another excellent time to visit.
From September to November, temperatures drop from the mid-90s down to the high 60s (°F). This drop makes it an ideal period for enjoying outdoor activities like hiking, visiting local wineries, and exploring the city’s historic landmarks.
By October, daily highs often hover around 85°F, and the weather becomes more comfortable for extended periods outside.
Nights become cooler, usually dipping into the low 60s, allowing for refreshing evenings. Fall also brings cultural events and festivals, enriching the visitor experience.
What Is Glendale, Arizona Like in Winter
Winters in Glendale are mild and pleasant, making it a popular time for tourists.
From December through February, daytime highs are usually in the 60s and 70s (°F), while nighttime lows can drop to the mid-40s.
The weather remains mostly clear, with minimal rainfall.
December has the shortest days of the year, offering about 10 hours of daylight.
The mild temperatures make this season perfect for exploring outdoor attractions without the discomfort of heat.
Winter also sees various holiday events, providing a festive atmosphere for visitors.