Nestled in the heart of California, Roseville boasts a Mediterranean climate with mild, wet winters and hot, dry summers.
This makes it a delightful place to visit or live, with weather conditions that suit a variety of outdoor activities.
The hottest month in Roseville is July, where temperatures often reach an average high of 95°F and a low of 63°F, perfect for those who enjoy warm, sunny days.
The cool season sees temperatures dip, lasting from November to February.
During this period, the average daily high temperature falls below 62°F.
December is the coldest month, with an average low of 40°F and a high of 56°F, offering a refreshing respite from the summer heat.
Roseville’s climate is characterized by very little snowfall, making it easier to get around even in the winter months.
Rainfall in Roseville is concentrated during the winter, with March being the wettest month.
On average, Roseville receives about 21 inches of rain annually, which is less than the US average.
This balanced weather pattern means Roseville enjoys clear skies and plenty of sunshine for most of the year, making it a great destination year-round.
Explore more about Roseville’s weather patterns on Weather Spark and other sources to plan your perfect visit.
Average Temperature in Roseville, California
Roseville, California experiences varying temperatures throughout the year. The hottest month is July, with an average high of 95°F and a low of 63°F.
During the cool season, from November 20 to February 21, temperatures drop with daily highs below 62°F.
December stands out as the coldest month, where lows can hit 40°F and highs are around 56°F.
For a clear picture of weather by month, January also sees low temperatures, averaging about 46.4°F. Summers are quite warm, making July the warmest month.
Here’s a quick summary in a table:
| Month | Average High (°F) | Average Low (°F) |
|---|---|---|
| January | 55 | 40 |
| July | 95 | 63 |
| December | 56 | 40 |
For those interested in more temperature details, checking Temperature – ChaseDay.com could be useful.
Average Precipitation in Roseville, California
Roseville experiences variations in precipitation throughout the year, with notable differences between the wettest and driest months. The majority of precipitation comes in the form of rain.
Average Rainfall in Roseville, California
In Roseville, the rainiest month is December, with an average of 104 mm of precipitation.
During this month, residents can expect more frequent rainy days, with December averaging about 14.1 rainy days.
January is also relatively wet but slightly less so than December, contributing significantly to the area’s yearly precipitation.
On the other hand, the driest month in Roseville is July.
July averages no significant rainfall, often recording 0 mm of precipitation. May through September are generally dry months, making outdoor activities pleasant with minimal disruptions from rain showers.
The total annual precipitation for Roseville averages approximately 488 mm, highlighting the city’s dry and wet seasonal patterns.
Average Snow in Roseville, California
Roseville is located in California’s Central Valley, where snow is a rare occurrence. The city usually doesn’t see any snow throughout the year.
This can be attributed to the relatively mild winter temperatures which typically stay above freezing.
During winter, average lows are around 40°F while highs reach approximately 56°F.
For those interested in snow and ice, higher elevations like the Sierra Nevada mountains, which are not too far from Roseville, offer opportunities to experience snowy conditions.
However, within Roseville itself, snowfall is practically nonexistent, providing a mild winter climate that requires little to no snow-related preparations.
Average Sun in Roseville, California
Roseville enjoys a significant amount of sunshine year-round, impacting everything from daily activities to energy needs. The UV index varies throughout the year, reflecting changes in sunlight intensity and safety considerations.
Average Daily Shortwave Solar Energy in Roseville, California
Roseville experiences varying levels of daily shortwave solar energy.
In summer, especially in July, the city gets the highest shortwave solar energy, around 7.9 kWh.
During winter months, such as December, this value drops to about 2.1 kWh. These seasonal changes affect everything from UV index to daylight hours.
The city’s general lack of cloud cover provides more direct sunlight, resulting in higher UV indexes during peak hours. Daylight Saving Time adjustments help residents make better use of these sunny days.
Average Humidity in Roseville, California
Roseville experiences varying humidity levels throughout the year. The mean monthly relative humidity averages around 66%.
December is the most humid month, with an average humidity of 83%. This high humidity can make the air feel damp and cooler than it is.
July is the least humid month, with an average relative humidity of 53%. The lower humidity makes the summer heat more bearable.
The dew point also fluctuates, with higher values in the winter. A higher dew point indicates more moisture in the air.
Monthly Humidity Averages
| Month | Humidity (%) |
|---|---|
| January | 76 |
| February | 71 |
| March | 68 |
| April | 62 |
| May | 57 |
| June | 54 |
| July | 53 |
| August | 54 |
| September | 59 |
| October | 64 |
| November | 72 |
| December | 83 |
In winter, humidity is higher, contributing to a cold, damp feeling. This contrasts with summer’s lower humidity, which makes high temperatures more tolerable.
Maintaining awareness of these variations helps residents understand and adapt to the weather patterns in Roseville, making it easier to plan outdoor activities and manage personal comfort year-round.
For more detailed climate information, visit World Weather & Climate Information.
Average Wind in Roseville, California
In Roseville, California, the average wind speed varies throughout the year. Generally, the wind is most often from the north or northwest.
Monthly Average Wind Speeds:
- January: 5.6 mph
- February: 6.1 mph
- March: 7.2 mph
- April: 7.8 mph
- May: 7.4 mph
- June: 7.3 mph
- July: 7.1 mph
- August: 6.5 mph
- September: 6.2 mph
- October: 5.9 mph
- November: 5.7 mph
- December: 5.4 mph
Wind speeds are usually higher in spring with noticeable gusts occurring more frequently.
The direction can affect daily weather and temperature. Wind direction predominantly from the northwest helps keep the area clear and dry during summer.
The strongest winds typically occur in April, averaging around 7.8 mph. These higher speeds can lead to noticeable gusts that make the winds feel stronger.
Wind statistics are based on real weather observations, ensuring accurate and reliable data. For many residents, the wind patterns play a significant role in daily life, especially for those engaging in outdoor activities.
Average Air Quality in Roseville, California
Roseville, California, usually experiences good air quality throughout the year. Most days, the Air Quality Index (AQI) falls within the “Good” category, indicating low levels of air pollution.
Air Quality Data
| Year | PM2.5 (µg/m³) | AQI |
|---|---|---|
| 2017 | 7.4 | 31 |
| 2020 | 6 | 21 |
On a typical day, the AQI can be as low as 21, which is considered Good.
Common Pollutants
Common pollutants measured include:
- PM2.5: Fine inhalable particles with diameters of 2.5 micrometers and smaller.
- Ozone: A gas that can cause respiratory problems.
Weather and Other Factors
Weather conditions like temperature, humidity, and pressure affect air quality.
For example, hot temperatures can increase ozone levels.
Pressure: Higher atmospheric pressure can trap pollutants closer to the ground, worsening air quality.
Visibility: Poor air quality can reduce visibility, especially when particulate matter levels increase due to fires or other sources.
Forecast and Monitoring
Air quality forecasts help residents plan their activities.
You can track real-time air quality updates and forecasts through various services like AccuWeather and WeatherBug.
Topography of Roseville, California
Roseville is located in Placer County, California. The city’s topography is generally flat with some areas of gently rolling hills.
The average elevation of Roseville is around 200 feet.
The minimum elevation is about 75 feet, while the maximum elevation reaches approximately 623 feet.
In metric terms, Roseville’s average elevation is about 61 meters.
The minimum elevation is around 23 meters, and the maximum is around 190 meters.
The city has a hot-summer Mediterranean climate.
Summers are typically hot and dry, while winters are mild and wet. Roseville experiences little to no snow, especially in the winter months.
The terrain consists of a mix of urban development and natural areas.
Residential neighborhoods and commercial zones are interspersed with parks and green spaces.
Roseville’s elevation plays a role in shaping its climate. For instance, the higher elevations might slightly affect temperature variations and the distribution of rainfall compared to the lower areas.
This varied elevation supports a variety of vegetation and wildlife.
The topography helps create diverse microclimates within the city, making it an interesting area for outdoor activities and exploration.
Key Elevation Points:
- Average Elevation: 200 feet (61 meters)
- Minimum Elevation: 75 feet (23 meters)
- Maximum Elevation: 623 feet (190 meters)
Extreme Weather Events that Occur in Roseville, California
Roseville, California, experiences various extreme weather events. These events can significantly impact daily life and safety.
Heatwaves are common in Roseville, especially during summer.
Temperatures can exceed 100°F. Such extreme heat can lead to health issues like heat exhaustion and heat stroke.
In winter, heavy rain and flooding can occur.
Roseville receives about 21 inches of rain annually. During heavy rain, localized flooding may happen, impacting roads and properties.
Hail storms can also occur in Roseville.
Hailstones can vary in size but are usually smaller than an inch in diameter. These storms can cause damage to vehicles, roofs, and crops.
Wildfires are another significant concern.
Dry conditions, especially in summer and fall, create a high risk for wildfires. These fires can spread rapidly, leading to evacuations and property damage.
High winds often accompany these weather events.
Strong gusts can knock down trees and power lines, leading to power outages and road closures.
For those interested in current alerts, websites like The Weather Channel and AccuWeather provide active weather alerts in Roseville and a list of official weather advisories and warnings to keep residents informed.
Best Time of the Year to Visit Roseville, California
Roseville, California, offers distinct weather patterns in each season. The best time to visit depends largely on individual preferences for temperature, activities, and crowd levels.
What Is Roseville, California Like in Spring
In spring, the weather in Roseville is mild and comfortable.
March through May sees average highs ranging from 65°F to 75°F. This makes it an ideal time to enjoy outdoor activities without the summer heat.
Rainfall is more frequent during this season, with March experiencing the most rain at approximately 3.58 inches.
Visitors can explore local parks, hike trails, or visit nearby attractions with pleasant weather and blooming flowers.
Key Points:
- Average Highs: 65°F to 75°F
- Significant Rainfall
- Ideal for Outdoor Activities
What Is Roseville, California Like in Summer
Summer in Roseville is hot and dry.
From June to August, temperatures often reach highs of around 95°F.
This is the most popular time for tourists, despite the heat. Evenings cool down to the mid-60s, offering some relief.
Outdoor activities, such as visiting nearby lakes or enjoying water sports, are popular. Sun protection is essential due to the intense summer sun.
Key Points:
- Average Highs: 85°F to 95°F
- Dry Weather
- Popular with Tourists
What Is Roseville, California Like in Fall
Fall offers a more moderate climate, with temperatures from September to November averaging between 78°F and 50°F.
This season is excellent for those who prefer mild weather with less intensity.
Rainfall begins to increase in November, marking the transition to the wetter months. The area is less crowded compared to summer, making it an appealing time to visit.
Key Points:
- Average Highs: 50°F to 78°F
- Moderate Rainfall
- Less Crowded
What Is Roseville, California Like in Winter
Winter is the coolest season in Roseville. Temperatures range from 40°F to 64°F between December and February. It is not the most popular time for warm weather travelers.
Rainfall is spread evenly, with light rain about once a month. The region sees fewer tourists during this period, offering a quieter time for activities like exploring local history or indoor events.
Key Points:
- Average Highs: 40°F to 64°F
- Light Monthly Rainfall
- Quieter Tourist Season