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Climate and Average Weather Year Round in Roseville California, United States

In Roseville, the summers are hot, arid, and mostly clear and the winters are cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 39°F to 96°F and is rarely below 32°F or above 104°F.

Based on the tourism score, the best time of year to visit Roseville for warm-weather activities is from mid June to late September.

Climate in Roseville

coolcomfortablewarmhothotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDecNowNow91%91%43%43%clearovercastprecipitation: 4.6 inprecipitation: 4.6 in0.0 in0.0 inmuggy: 0%muggy: 0%0%0%drydrytourism score: 8.1tourism score: 8.10.50.5
Roseville weather by month. Click on each chart for more information.

The hot season lasts for 3.5 months, from June 6 to September 20, with an average daily high temperature above 87°F. The hottest month of the year in Roseville is July, with an average high of 95°F and low of 63°F.

The cool season lasts for 3.0 months, from November 20 to February 21, with an average daily high temperature below 62°F. The coldest month of the year in Roseville is December, with an average low of 40°F and high of 56°F.

Average High and Low Temperature in Roseville

Average High and Low Temperature in RosevillehotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FDec 3054°FDec 3054°FJul 1896°FJul 1896°F39°F39°F64°F64°FJun 687°FJun 687°FSep 2087°FSep 2087°FFeb 2162°FFeb 2162°F58°F58°F58°F58°F44°F44°F44°F44°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 56°F61°F67°F73°F82°F90°F95°F94°F88°F78°F64°F56°F
Temp. 47°F51°F55°F60°F67°F74°F78°F77°F73°F64°F53°F46°F
Low 41°F44°F46°F49°F55°F60°F63°F62°F59°F52°F45°F40°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Roseville

Average Hourly Temperature in RosevilleJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcomfortablecomfortablewarmhotvery coldvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Badajoz, Spain (5,657 miles away) is the far-away foreign place with temperatures most similar to Roseville (view comparison).

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In Roseville, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Roseville begins around May 20 and lasts for 5.1 months, ending around October 22.

The clearest month of the year in Roseville is July, during which on average the sky is clear, mostly clear, or partly cloudy 90% of the time.

The cloudier part of the year begins around October 22 and lasts for 6.9 months, ending around May 20.

The cloudiest month of the year in Roseville is February, during which on average the sky is overcast or mostly cloudy 56% of the time.

Cloud Cover Categories in Roseville

Cloud Cover Categories in RosevilleclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2891%Jul 2891%Feb 643%Feb 643%May 2067%May 2067%Oct 2268%Oct 2268%NowNowclearovercastpartly cloudymostly clearmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 56%56%53%43%34%20%10%10%15%30%47%54%
Clearer 44%44%47%57%66%80%90%90%85%70%53%46%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Roseville varies significantly throughout the year.

The wetter season lasts 5.3 months, from October 30 to April 10, with a greater than 16% chance of a given day being a wet day. The month with the most wet days in Roseville is February, with an average of 9.0 days with at least 0.04 inches of precipitation.

The drier season lasts 6.6 months, from April 10 to October 30. The month with the fewest wet days in Roseville is July, with an average of 0.2 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Roseville is February, with an average of 8.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 32% on February 20.

Daily Chance of Precipitation in Roseville

Daily Chance of Precipitation in RosevillewetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 2032%Feb 2032%Jul 160%Jul 160%Oct 3016%Oct 3016%Apr 1016%Apr 1016%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 8.8d8.9d8.2d4.5d2.7d1.1d0.2d0.2d1.1d3.4d6.7d8.5d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Roseville experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.1 months, from September 26 to May 28, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Roseville is February, with an average rainfall of 4.6 inches.

The rainless period of the year lasts for 3.9 months, from May 28 to September 26. The month with the least rain in Roseville is August, with an average rainfall of 0.0 inches.

Average Monthly Rainfall in Roseville

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 4.1″4.6″3.4″1.5″0.7″0.2″0.0″0.0″0.3″1.3″2.9″4.2″

The length of the day in Roseville varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 27 minutes of daylight; the longest day is June 20, with 14 hours, 53 minutes of daylight.

Hours of Daylight and Twilight in Roseville

Hours of Daylight and Twilight in RosevilleJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 1912 hr, 8 minMar 1914 hr, 53 minJun 2014 hr, 53 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 229 hr, 27 minDec 219 hr, 27 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 9.8h10.8h12.0h13.3h14.3h14.8h14.5h13.6h12.4h11.1h10.1h9.5h

The earliest sunrise is at 5:39 AM on June 13, and the latest sunrise is 1 hour, 54 minutes later at 7:33 AM on November 2. The earliest sunset is at 4:43 PM on December 6, and the latest sunset is 3 hours, 51 minutes later at 8:34 PM on June 27.

Daylight saving time (DST) is observed in Roseville during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

Sunrise & Sunset with Twilight and Daylight Saving Time in Roseville

Sunrise & Sunset with Twilight and Daylight Saving Time in RosevilleJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:39 AMJun 135:39 AM8:34 PMJun 278:34 PMJun 27Dec 64:43 PMDec 64:43 PM7:33 AMNov 27:33 AMNov 2Mar 10DSTMar 10DSTDSTNov 3DSTNov 3daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Roseville

Solar Elevation and Azimuth in RosevilleJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM0001010101020202030303040404050506060700001010102020202030304040505060702875NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Roseville

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Roseville, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

Humidity Comfort Levels in Roseville

Humidity Comfort Levels in RosevilleJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 190%Jan 190%Sep 130%Sep 130%NowNowcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Roseville experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.1 months, from April 30 to September 2, with average wind speeds of more than 6.0 miles per hour. The windiest month of the year in Roseville is July, with an average hourly wind speed of 6.6 miles per hour.

The calmer time of year lasts for 7.9 months, from September 2 to April 30. The calmest month of the year in Roseville is October, with an average hourly wind speed of 5.4 miles per hour.

Average Wind Speed in Roseville

Average Wind Speed in RosevillewindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphJul 196.7 mphJul 196.7 mphOct 45.3 mphOct 45.3 mphApr 306.0 mphApr 306.0 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 6.36.66.26.06.16.46.66.35.65.45.96.5

The predominant average hourly wind direction in Roseville is from the south throughout the year.

Wind Direction in Roseville

Wind Direction in RosevilleJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

To characterize how pleasant the weather is in Roseville throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Roseville for general outdoor tourist activities is from mid June to late September, with a peak score in the first week of August.

Tourism Score in Roseville

Tourism Score in Rosevillebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.18.10.50.5NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Roseville for hot-weather activities is from late June to mid August, with a peak score in the third week of July.

Beach/Pool Score in Roseville

Beach/Pool Score in Rosevillebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.55.50.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Roseville typically lasts for 11 months (347 days), from around January 12 to around December 24, rarely starting after February 17, or ending before November 22.

Time Spent in Various Temperature Bands and the Growing Season in Roseville

Time Spent in Various Temperature Bands and the Growing Season in Rosevillegrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Jan 1250%Jan 1250%Dec 2450%Dec 2490%Feb 1790%Feb 1790%Nov 2290%Nov 22Jul 5100%Jul 5100%NowNowvery coldcoldcoolcomfortablewarmhotsweltering
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Roseville should appear around February 13, only rarely appearing before February 3 or after February 25.

Growing Degree Days in Roseville

Growing Degree Days in RosevilleJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FFeb 1389°FFeb 1389°FMay 16900°FMay 16900°FJun 281,800°FJun 281,800°FDec 314,705°FDec 314,705°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from May 9 to August 23, with an average daily incident shortwave energy per square meter above 7.2 kWh. The brightest month of the year in Roseville is July, with an average of 8.3 kWh.

The darker period of the year lasts for 3.6 months, from November 1 to February 20, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year in Roseville is December, with an average of 2.1 kWh.

Average Daily Incident Shortwave Solar Energy in Roseville

Average Daily Incident Shortwave Solar Energy in RosevillebrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJun 268.4 kWhJun 268.4 kWhDec 192.0 kWhDec 192.0 kWhMay 97.2 kWhMay 97.2 kWhAug 237.2 kWhAug 237.2 kWhNov 13.3 kWhNov 13.3 kWhFeb 203.3 kWhFeb 203.3 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 2.33.24.56.17.48.28.37.46.04.22.72.1

For the purposes of this report, the geographical coordinates of Roseville are 38.752 deg latitude, -121.288 deg longitude, and 167 ft elevation.

The topography within 2 miles of Roseville contains only modest variations in elevation, with a maximum elevation change of 154 feet and an average elevation above sea level of 158 feet. Within 10 miles contains only modest variations in elevation (830 feet). Within 50 miles contains very significant variations in elevation (6,975 feet).

The area within 2 miles of Roseville is covered by artificial surfaces (83%) and cropland (16%), within 10 miles by artificial surfaces (45%) and cropland (26%), and within 50 miles by cropland (33%) and grassland (26%).

This report illustrates the typical weather in Roseville, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Roseville.

For each station, the records are corrected for the elevation difference between that station and Roseville according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Roseville is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Roseville and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Roseville and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.