December weather in Riverside California To get a good overview of the type of weather you can expect in December in Riverside, we will look at the day and night temperature, minimum and maximum water temperature, and if December is comfortable or humid Generally, December in Riverside will be slightly on the colder side. Historical data shows that you can expect an average temperature of around 66°F / 19°C. But due to the very dry air, it can feel somewhat uncomfortable for some people. During the night, it will cool down to around 44°F / 7°C. Riverside has some rainy days in December. You can expect around 6 rainy days, with on average 1.6 inches / 41 mm of rain during the whole month.
The forecast for December 2024 is based on historical data and are averages. They will give a good indication what you can expect, but the daily temperature and rain will fluctuate during the month.
December weather in Riverside California in more detail To get a better feeling for the type of weather, you can expect in December in Riverside, we will look at the temperature, rain, wind, humidity, water temperature, and sun and clouds- What will the temperature be in Riverside in December Generally, you can expect in December an average temperature of 66°F / 19°C during the day and an average of 44°F / 7°C during the night. In December, during the warmest part of the afternoon, the temperature can often get as high as 78°F / 26°C, and at the end of the night, it can get as low as 33°F / 1°C.
When looking at the whole year, December is the coldest month, with an average temperature of around 66°F / 19°C. July and August are the hottest months, with an average temperature of around 98°F / 37°C. When comparing December with the temperature in the month before and after, this is slightly lower than November, which sees an average maximum temperature of around 75°F / 24°C. And almost equal to January, which sees an average maximum temperature of around 68°F / 20°C.
Day and night temperature variation for Riverside during the year. Day and night temperature variation for Riverside during the year.
But average temperatures only tell half of the story. It is also good to check the maximum and minimum temperatures. When looking at the whole year, July is the hottest month, with a temperature of around 109°F / 43°C. December is the coldest month, with a temperature of around 78°F / 26°C. When comparing December with the temperature in the month before and after, this is slightly lower than November, which sees an average maximum temperature of around 87°F / 31°C. And almost equal to January, which sees an average maximum temperature of around 80°F / 27°C.
In the following graph, you can see how many cold and hot days you can expect in Riverside each month:
Day and night temperature variation for Riverside during the year. Day and night temperature variation for Riverside during the year.
- Can you expect rain in December in Riverside? Generally, you can expect about 6 rain days in December, with on average 1.6 inches / 41 mm of rain.
When looking at the whole year, June is the dryest month, with an average rainfall of around 0 inches / 1 mmmm. February is the wettest month, with an average rainfall of around 2.4 inches / 61 mmmm. When comparing December with the month before and after, this is a lot more than November, which sees around 0.6 inches / 16 mm of rain. And a lot less than January, which sees around 2.2 inches / 55 mm of rain
Rain days for Riverside during the year. Rain days for Riverside during the year.
If we look at the number of days with rain, June is the month with the least amount of rain days with an average of between 0 and 1 days. February is the month with the most rain days with around 7 days. When comparing December with the month before and after, this is slightly more than November, which sees an average of between 3 and 4 days of rain. And almost equal to January, which sees an average of between 5 and 6 days of rain
- What will the water temperature be in Riverside for December You can expect in December, the water temperature for Riverside to be between 60°F / 16°C and 59°F / 15°C.
To compare the water temperature we will use the maximum water temperature. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water. July has the highest water temperature, with around 69°F / 21°C. February has the lowest water temperature, with around 60°F / 16°C. When comparing the water temperature from December with the month before and after, December has a water temperature almost equal to November, with a water temperature of around 64°F / 18°C. And almost equal to the water temperature from January, that is around 60°F / 16°C.
Water temperature for Riverside during the year. Water temperature for Riverside during the year.
- Can you expect in December a lot of sunny days in Riverside Generally, you can expect around 17 sunny days in December and around 11 partly sunny days. The remaining days will be cloudy.
When looking at the whole year, June is the month with the highest number of sunny days, with around 26 sunny days. February is the month with the lowest number of sunny days, with an average of between 10 and 11 sunny days. When comparing December with the number of sunny days in the month before and after, it is almost equal to November, with an average of between 18 and 19 sunny days. And almost equal to January, with around 16 sunny days
The number of sunny, partly sunny, and cloudy days for Riverside The number of sunny, partly sunny, and cloudy days for Riverside
We have looked at the sunny days in Riverside. Let's also look at the cloudy or overcast days. February is the month with the highest number of cloudy days, with around 5 cloudy days. June and August And are the months with the lowest number of cloudy days, with around 0 cloudy days. When comparing December with the number of cloudy days in the month before and after, it is almost equal to November, with an average of between 1 and 2 cloudy days. And almost equal to January, with an average of between 4 and 5 cloudy days
- Will it be comfortable in December in Riverside? Generally, December in Riverside will have very dry air, and can feel somewhat uncomfortable for some people. But will be fine for most..
We use the humidity and temperature in Riverside to calculate the Wintersun Expert Comfort level for each month. The lower the Wintersun Expert Comfort level, the more comfortable it will be. Only for certain people, extremely dry air can feel slightly uncomfortable. When looking at the whole year, November has the lowest humidity, with a Wintersun Expert comfort level of "comfortable" (very dry air). June has the highest humidity, with a Wintersun Expert comfort level of "very comfortable" (low humidty). When comparing December with the month before and after, this is more than November, which has a Wintersun Comfort level of "comfortable" (very dry air). And slightly more than January, which has a Wintersun Comfort level of "comfortable" (very dry air)
Wintersun Expert Humidity / Comfort level for Riverside Wintersun Expert Humidity / Comfort level for Riverside
What to do in Riverside California in December Riverside has a lot to offer its visitors. Some of the places you ought to visit are listed below:
California Citrus State Historic Park is a park and an open-air museum that gives a glimpse into the history of how the region became the birthplace of California Citrus Industry.Parent Washington Navel Orange Tree is a historic landmark of Riverside located at the corner of Magnolia and Arlington Streets. It is the last of the two original 'navel orange trees' brought from Brazil to the United States in 1870.Museums like Heritage House Museum , Riverside Metropolitan Museum , March Field Air Museum , and Riverside Art Museum are a must-visit if you are interested in the history, culture, and arts that dominated the region throughout history.Fairmount Park is a beautiful park with lakes and rose gardens. It was designed by the firm founded by Frederick Law Olmsted , which had also designed New York's Central Park. The park is home to many species of birds.Mount Rubidoux is a well-known city landmark and it has many trails for hiking and cycling. The views from the top are amazing. This foothill also divides the line between the town of Rubidoux and the city of Riverside.Mission Inn Hotel and Spa is a National historic landmark of the city because it is considered as one of the most luxurious hotels and a historically rich place in the United States.Lake Mathews is a large water reservoir that is fed through water canals and is a great site for picnics.Jurupa Mountains Discovery Center is a large outdoor facility that offers a natural and wildlife-based experience to its visitors.Is it humid in Riverside California in December? A lot of people ask interested in the humidity or relative humidity for Riverside California in December. But the real question they want to ask is not about humidity but the amount of moisture in the air. Or better, about comfort. Will it be comfortable in December in Riverside, or will high humidity make it uncomfortable. To answer this question, we have to look at the dew point. Relative humidity can change a lot in Riverside during the day and night, as it changes when the amount of moisture changes and, but also when the temperature changes. It is a lot less reliable for comfort. Where the dew point only varies with the amount of moisture in the air.Looking at the dew point, we can see that for the month of December, you can expect that Riverside will have very dry air, and can feel somewhat uncomfortable for some people. But will be fine for most..
November is the month with the most comfort. It will have very dry air, and can feel somewhat uncomfortable for some people. But will be fine for most.. June is the most uncomfortable month. It will have a low humidty, and will feel very comfortable. In the graph, you can see that there is a significant difference between the most comfortable and most uncomfortable months
Humidity level for Riverside Humidity level for Riverside
Is December a good time to go to Riverside California? Trying to answer the question of whether December is a good time to go to Riverside is not as easy as it first seems. Some people like colder weather, and others prefer a warmer climate. Some are fine with some humidity, and others are not. If your location has air conditioning, the night temperature is less important. These are some examples. I will try to answer the question with a more generic person in mind. The more detailed information in this article should be enough to check further if this applies to you as well.
If we look at the average temperature for Riverside in December, we can see that it will be on slightly less than what most people like, but still ok for most. In December, you can expect it to be slightly on the colder side, with an average temperature of around 66°F / 19°C. But due to the very dry air, it can feel somewhat uncomfortable for some people. During the night, it will be around 44°F / 7°C. As the number of overcast days is not high, you can enjoy the sun with around 17 sunny days and 11 partly sunny days. The last aspect we will look at is rain. You can expect around 6 rainy days, with on average 1.6 inches / 41 mm of rain during December. More then 5 days rain per month makes the chance higher you will see some rain during a shorter stay. But a day with rain does not mean a day you can not enjoy. We have looked at the average day temperature, the night temperature, humidity, the number of overcast days, and the rain. We think that December in Riverside California is not the most optimal destination. But that doesn't mean it is not a good time for you to go. As said before, each visitor has their own preferences when it comes to the weather.
Does it rain all day in Riverside California in December?
In Riverside, it does not rain all day in December. You can expect around 6 rainy days, with on average 1.6 inches / 41 mm of rain during the month. Another way of looking at the rain is the number of sunny days. For Riverside California, there are, on average 17 sunny days and 11 partly sunny days in December. That clearly shows that it is not raining all the time.
Is December the rainiest month in Riverside California? December is not the month with the most rainy days, and not the month with the most rain. To answer what the rainiest month is in Riverside, we will both look at the month with the most rain, and the month with the highest number of rainy days. February is the month with the the highest number of rainiest days. On average, you can expect 7 days with rain. June is the month with the lowest number of rainy days, with aproximately 1 day. February is the month with the most rain. This is not equal as the one with the most rainy days. On average, you can expect 2.4 inches / 61 mm of rain. June is the month with the least amount of rain. This is not the same month as the one with the lowest number of rainy days. You can expect approximately 0 inches / 1 mm of rain.
Is December the most sunniest month in Riverside California? December is not the month with the most sunny days, not the month with the most partly sunny days, and it is not the month with the lowest number of overcast days. To answer what the sunniest month is in Riverside, we will of course look at the month with the most sunniest days, but also look at the month with the biggest number of days that are sunny or partly sunny. June is the month with the highest number of sunny days. On average, you can expect 17 sunny days, and 11 partly suny days. February is the month with the lowest number of sunny days. August is the month with the highest number of sunny days and partly sunny days combined. While February is the month with the lowest number of sunny days and partly sunny days combined. The last thing we will look at is the number of overcast days. June and August are the months with the lowest number of overcast days. While February is the month with the highest number of overcast days.
More information about Riverside California Weather in Riverside California in other months What to do in Riverside California for each month