Nestled in the heart of the Inland Empire, Fontana, California offers a unique climate that has something for everyone.
With hot summers and mild winters, it’s easy to see why this city is a popular destination for those seeking a comfortable year-round environment.
In August, the hottest month, Fontana experiences average highs of 94°F and lows of 65°F, providing a warm yet manageable summer experience.
Winter in Fontana is equally accommodating, with December being the coldest month.
During this time, the average high temperature is 66°F, and the low falls to around 43°F.
These mild conditions make Fontana a great spot to escape the harsher winter climates of the northern hemisphere.
Fontana’s Mediterranean-like weather ensures that visitors and residents can enjoy a variety of outdoor activities no matter the season.
Rainfall is typically sparse, especially in June, which is the driest month of the year.
Fontana’s balanced climate creates an environment perfect for both relaxation and adventure throughout the United States.
Average Temperature In Fontana, California
Fontana, California has clear weather patterns throughout the year.
August is the hottest month, with an average high of 94°F and a low of 65°F.
During the cool season, which lasts from November to mid-March, the high temperature stays below 71°F.
December is the coldest month, with an average low of 43°F and a high of 66°F.
The table below shows the average temperatures for each month:
| Month | Avg. High Temp (°F) | Avg. Low Temp (°F) |
|---|---|---|
| January | 67 | 44 |
| February | 68 | 46 |
| March | 71 | 49 |
| April | 75 | 52 |
| May | 77 | 54 |
| June | 83 | 58 |
| July | 91 | 62 |
| August | 94 | 65 |
| September | 89 | 63 |
| October | 80 | 55 |
| November | 73 | 47 |
| December | 66 | 43 |
In May, the temperatures remain warm with an average high of 76.6°F and a low of 54°F. The pleasant weather makes spring an enjoyable time.
Throughout the year, temperatures in Fontana show a clear pattern of warm summers and mild winters.
Average Precipitation In Fontana, California
Fontana, California, experiences distinct patterns of rainfall and occasional snowfall each year. The details below provide an in-depth look at the average precipitation levels.
Average Rainfall In Fontana, California
Fontana has notable differences in rainfall throughout the year.
The wettest month is December, with an average precipitation of 3.6 inches.
Conversely, June is the driest month, with minimal rain, averaging only about 0.0 inches of rainfall.
During the dry summer months, particularly from April to November, rainfall is scarce and intermittent.
The city enjoys an arid climate for much of this period, leading to fewer rainy days.
On average, Fontana experiences about 14 inches of rain annually.
These rainfall patterns make it important for residents to plan for water conservation during the drier months and prepare for possible flooding in the wetter periods.
Average Snow In Fontana, California
Snowfall in Fontana is extremely rare, given its typically warm climate. The city might see snow on isolated occasions, mainly in February, with average snowfall days barely reaching 0.1 days per year.
Fontana’s low elevation and warm temperatures do not support frequent snowfall, so residents usually do not have to worry about snow and ice.
Due to the rarity of snow, it’s uncommon for businesses and homes in Fontana to have snow-specific infrastructure, unlike regions with regular snowfall. This results in the daily life of the city being primarily unaffected by snow even during the coldest months.
Average Sun In Fontana, California
Fontana, California experiences a good amount of sunshine throughout the year. The region’s sunshine hours and UV index fluctuate with the seasons, influenced by its Mediterranean climate.
Average Daily Shortwave Solar Energy In Fontana, California
Fontana receives an average daily shortwave solar energy of around 5.5 kWh per square meter.
This amount varies over the months, with June recording the highest levels of solar energy due to longer daylight hours and clear skies.
The area experiences 14.5 hours of daylight on the longest day in June, and about 10 hours on the shortest days in December.
Daylight Saving Time helps extend the evenings from March to November, offering more sunlit hours for activities.
The UV index in Fontana often reaches high levels during the summer months, peaking around June and July.
Protecting skin from UV exposure is essential during these periods. February and November tend to have lower sun exposure, providing a break from the intense summer rays.
Average Humidity In Fontana, California
Humidity in Fontana varies throughout the year. The climate is generally dry, which means humidity levels are often low.
In summer, the humidity is typically lower.
For instance, in July, the average relative humidity can be around 45%.
Winter months see a slight increase. In December, the average humidity may reach about 60%.
The dew point is another important factor. It measures how humid the air feels.
Throughout the year, Fontana has a dew point ranging between 30°F to 55°F.
Here is a simple chart to give an overview:
| Month | Average Humidity (%) | Dew Point (°F) |
|---|---|---|
| January | 58 | 40 |
| February | 55 | 42 |
| March | 52 | 45 |
| April | 48 | 48 |
| May | 45 | 50 |
| June | 40 | 52 |
| July | 45 | 55 |
| August | 45 | 55 |
| September | 40 | 52 |
| October | 45 | 48 |
| November | 50 | 45 |
| December | 58 | 40 |
Being arid, Fontana is ideal for those who prefer lower humidity. The city experiences clearer weather with less moisture in the air, especially in the summer months.
The dew point remains fairly comfortable, reflecting the overall dry conditions.
Average Wind In Fontana, California
Fontana, California experiences moderate wind conditions throughout the year. Wind speeds vary, generally ranging between 5 to 15 mph.
The windiest month in Fontana is typically May, with average wind speeds around 10 mph. Winds during this month often reach a maximum of 15 mph.
Fontana’s average wind speeds:
| Month | Average Wind Speed (mph) |
|---|---|
| January | 7 mph |
| February | 8 mph |
| March | 9 mph |
| April | 10 mph |
| May | 10 mph |
| June | 9 mph |
| July | 8 mph |
| August | 7 mph |
| September | 7 mph |
| October | 7 mph |
| November | 6 mph |
| December | 6 mph |
Wind conditions in Fontana are generally calmest in the winter months like December and January, with speeds around 6 mph.
Gusts can occur, but they are not frequent.
During May, gusts can occasionally reach higher speeds due to changes in weather patterns.
Wind patterns in Fontana are influenced by its geographical location.
The city is somewhat shielded from strong coastal winds yet can still experience breezes coming through nearby mountain passes.
Average Air Quality In Fontana, California
Fontana’s air quality varies throughout the year due to different weather conditions and climate factors.
The Air Quality Index (AQI) in Fontana can range from good to moderate.
For example, you can check real-time data using platforms like IQAir.
During hotter months, visibility may be reduced due to particulate matter and other pollutants. This is especially true when the weather is partly cloudy or during temperature inversions.
Common Pollutants:
- PM2.5 (Particulate Matter)
- Ozone
- Nitrogen Dioxide (NO2)
Pressure and visibility can also affect how pollutants are dispersed.
Historical weather data, which shows trends over several years, indicates fluctuations in air quality levels during different seasons.
For detailed information on daily and historical AQI, platforms like AccuWeather offer comprehensive data tracking.
Here’s a snapshot of a typical air quality day in Fontana:
| AQI Level | Health Implications |
|---|---|
| 0-50 | Good – air quality is considered satisfactory |
| 51-100 | Moderate – acceptable for the majority but may affect sensitive groups |
Residents are encouraged to monitor air quality reports, especially during days with high pressure and low visibility.
Tracking the air quality data through reliable platforms ensures that Fontana residents can make informed decisions about outdoor activities.
Topography Of Fontana, California
Fontana, located in San Bernardino County, is in the southwestern part of California. The city is part of the Inland Empire region.
The elevation of Fontana ranges from about 840 feet to 2,600 feet above sea level, with most of the city sitting at around 1,237 feet.
This variation in elevation contributes to different climate experiences within the city.
Fontana is near the San Gabriel Mountains, which lie to the north.
These mountains provide a scenic backdrop and can affect weather patterns, sometimes causing cooler temperatures in the higher elevations.
The city itself does not have significant bodies of water, but it is located relatively close to the Santa Ana River.
This river runs to the southwest of Fontana and can be seen during particularly rainy seasons.
From an aerial view, Fontana presents a mix of flat suburban areas and gently rolling hills.
This diverse terrain plays a role in its suburban development, allowing both residential areas and open spaces.
The city’s land is primarily used for housing and commercial purposes, but there are also parks and recreational facilities that take advantage of the varied landscape.
This ensures residents have access to green spaces and nature despite the urban environment.
Fontana’s position in the valley, surrounded by mountains, means it has a unique blend of southern California’s coastal and inland geographical features.
Extreme Weather Events That Occur In Fontana, California
Fontana, California, experiences a mix of extreme weather events throughout the year. The climate is generally dry, but certain conditions can lead to unexpected weather patterns.
During the summer, temperatures can soar to over 100°F.
Heatwaves are common and can last for several days, creating health risks for residents.
It’s crucial to stay hydrated and avoid outdoor activities during peak heat.
In winter, Fontana occasionally experiences strong winds. Known as the Santa Ana winds, these dry and powerful gusts can exceed 40 mph, increasing the risk of wildfires.
These winds are particularly dangerous because they can spread fires rapidly across dry landscapes.
Rainfall is infrequent but when it does occur, it usually happens between November and April.
Heavy rains can lead to flash flooding, especially in low-lying areas.
For instance, storms can bring several inches of rain in a short period, causing water to accumulate quickly.
Hail is rare in Fontana but not impossible. Occasionally, thunderstorms can bring small hailstones.
Although these events are brief, they can still cause minor damage to property and vehicles.
Ontario International Airport is the nearest major airport to Fontana.
During extreme weather events such as heavy rain or strong winds, flights can experience delays or cancellations.
Travelers should monitor weather reports and plan accordingly.
Best Time Of The Year To Visit Fontana, California
Fontana experiences pleasant weather during February, March, April, and November, with average temperatures between 68°F and 79°F.
The hottest months are July, August, and September, with temperatures often reaching the mid-90s.
What Is Fontana, California Like In Spring
Spring in Fontana is comfortable, with mild temperatures and blooming flowers.
March temperatures range from 50°F to 72°F, while April sees temperatures between 54°F and 78°F.
By May, temperatures warm up to between 59°F and 83°F.
There is little rainfall, averaging around 1 inch in total from March to May.
The weather is ideal for outdoor activities, such as hiking in the nearby San Bernardino Mountains or visiting local parks.
What Is Fontana, California Like In Summer
Summers in Fontana are hot and dry.
June temperatures range from 63°F to 90°F.
July is one of the hottest months, with temperatures often reaching from 68°F to 95°F.
August is similar, with temperatures ranging between 67°F and 95°F.
September starts to cool down slightly, with temperatures from 64°F to 91°F.
Rain is almost nonexistent, at less than half an inch for the entire summer.
The clear skies make it a good time for stargazing or evening walks.
What Is Fontana, California Like In Fall
Fall offers warm days and cooler nights.
October temperatures range from 57°F to 84°F, and November cools down further, with temperatures between 49°F and 74°F.
The area sees about 1-2 inches of rain during these months.
This season is perfect for visiting local farmers’ markets or taking scenic drives.
The weather remains pleasant for outdoor activities and local events.
What Is Fontana, California Like In Winter
Winters in Fontana are mild, with cool nights.
December temperatures range from 43°F to 67°F. January, the coldest month, sees temperatures between 43°F and 66°F.
February warms slightly, ranging from 45°F to 68°F.
The area receives around 3-4 inches of rain during winter, making it the wettest season. Despite the rain, there are many clear days perfect for indoor activities like museum visits and shopping.