How Much Rainfall In Los Angeles
The amount of rainfall we get in any given year has an important impact on our lives. We depend on water for everything: to live, work and play; to survive financially; and to enjoy ourselves.
Water is essential to life. Almost every living thing needs it to thrive.
In this article you’ll find out how much rain LA gets, where the most precipitation occurs and some easy ways to reduce your water usage. You’ll also learn about some simple practices that can help preserve the natural water resources we have here.
I’ve included links to more detailed information if you are interested in reading more!
Now let’s dive in and see what questions we can answer.
Question: How much rain does Los Angeles receive?
Answer: Los Angeles receives enough rain to make almost two million gallons of water per day. On average, we receive 10 inches (25 cm) of rain per month which averages to around 2 feet (60 centimeters) annually.
However, due to variation in weather patterns, we go up and down as far as 20 inches (50 cm) or less at a time! This means there were times when very little water fell from the sky and others when many days had lots of rain.
Amount of rainfall in the different parts of Los Angeles
More than 10 inches of rain is very unusual for Southern California, where most areas only see an average of six to eight inches per year!
In fact, according to data from NOAA’s Global Data Sets, no part of Los Angeles has ever received more than ten inches (25 cm) of rain in any month!
But that doesn’t tell you how much rain fell outside of city limits. It also can’t account for excess water that was poured onto the ground as runoff during storms or periods when it rained less but there was still lots of moisture left over in the air.
So instead of telling you how much rain fell in each area of LA, we will use statistical tools to determine how likely it is to get at least one day with at least two drops of rain in each region.
Relation between rainfall and floods
When it comes to floods, there are two main causes. Either very heavy rain falls within a short amount of time or water is given an open door due to lack of natural barriers.
The first one happens when large amounts of water fall extremely quickly. This is called intense precipitation. Intense precipitation can cause flooding by rushing down hills, onto roofs, and into low areas. It also takes longer for water to go down vertical surfaces like mountains or buildings.
The second reason that floods occur in Southern California is because we have almost no natural protective borders around rivers and streams. There may be some vegetation along the banks, but nothing substantial!
Los Angeles has many tall buildings close to waterways which help prevent flooding, but this doesn’t happen often.
In fact, most of the city was built after World War II, when such floods were much more common.
Floods are scary, but they are totally avoidable unless you let them take place. If people would only maintain their homes and property, there wouldn't be too many floods.
Ways to reduce rainfall damage
The best way to prevent significant water damage is by reducing your exposure to potential flood waters. This can be done by picking more appropriate places to live, investing in protective measures for your home or business, and limiting outdoor activity during times of rain!
Many factors contribute to how much rainfall an area receives, including atmospheric conditions, precipitation patterns, terrain, and micro-climates. As we all know, climate change makes our weather become wetter and longer than it used to be!
Climate changes like global warming also increase the intensity of heavy downpours. When floods occur, they are usually more prolonged due to there being more water vapor in the air. More water vapor means heavier rains!
Fortunately, you do not need special equipment to enjoy nature at its finest! You can learn some easy ways to help preserve natural habitats while still having fun in the park. These tips will keep you informed about what to watch out for and what steps you should take if you notice flooding around you.
Reminder: It is very important that you stay safe and don’t enter areas with lots of runoff! Take care of yourself first before helping others! Also, make sure to follow local regulations and tell emergency responders who you are so they can contact you directly for further information and assistance.
1) Average rainfall in Los Angeles
With almost 6 months of recorded data, we can look at our average monthly rainfall for the city of Los Angeles!
We will be using an easy formula to determine this value. The average is calculated by taking the total amount of time multiplied by one half the length of time per year (or month). For example, if there are 12 months in the year then each month has 30 days so one third of a year is 9 months which makes one half 9 years. So, let’s use an easier case: March has only two days so we will not include it when calculating the average.
The average for all twelve months is 5.5 days or 0.46 inches of rain! This seems low since it includes zero days but remember that three-fourths of the year have less than 2 days of rain so most of the time you would win this contest even though it was a wet day once in a while.
Now that we know the average, how much rain did we get? Let’s check!
Evidence: April had 4.6 inches of rain which is equal to five and a half days of rain! That means we broke the record with nearly a full inch more than the previous month!
June also set a new rainfall record with 11.
Average rainfall in the different parts of Los Angeles
When it comes to average annual rainfall, South LA receives an average of 39 inches, West LA gets 36 inches, North LA gets 33 inches, and East LA gets 28 inches.
South LA has slightly higher elevation than other areas which allows for more atmospheric pressure, so rain falls longer there!
The highest amount of precipitation occurs between November and April, with an average of 59 days with measurable amounts of rain. This is also the rainy season in Southern California as well.
Los Angeles’s most popular parks like Griffith Park or Santa Monica Beach are surrounded by buildings and street cars that limit how much water can soak into the ground. Many nature lovers feel this lack of green space is what is turning our city into one big desert.
Average rainfall in the different states of America
The average amount of rainfall received by any state in the United States varies considerably from one region to another. This is due to differences in geographical position as well as climate.
States that are located near large bodies of water will, naturally, get more rain than those who are not! For example, if you lived next door to the Pacific Ocean, your backyard would be surrounded by water, which requires more moisture for it to run off into.
Furthermore, since oceans supply our atmosphere with humidity, coastal areas tend to receive more precipitation than regions that do not have access to fresh air and water vapor. Some cities even have meteorologists that track how much moisture there is in the air at every hour of the day so they can predict when and where heavy rains may occur.
Overall, weather conditions play an important role in determining how much rainfall a city receives. Since most of California is covered in water, we need look no further than ourselves to see why it is hard to find very wet days here! 😉
Sources: List of U.S.
2) Amount of rainfall in the different parts of Los Angeles
The most amount of rain that can be accumulated in an area is called its “rain gauge” or “precipitation intensity.”
This depends on two things: how large the area is, and what time period is being analyzed for total amounts.
For example, if we were to analyze one year’s worth of data (from October 1st through September 30th), then our precipitation intensity would be 0.1 inches per hour. This is because there are 24 hours in a day, and each hour has 0.01 inches of water deposited from precipitation.
So if we were to measure the average daily rainfall over a month, then this monthly average could add up to more than one-hour of deposition per hour, which equals one inch of water deposited per hour.
However, due to the fact that we are analyzing only one year of data, this monthly average cannot deposit as much water as it possibly could in a shorter amount of time.
The reason why this does not make sense is because there was no way for all of the water to seep into the ground during the short amount of time measured here.
In other words, there was not enough time for all of the surface water to go down.
Amount of rainfall in the different parts of Los Angeles
The amount of rain that lands in various areas of Los Angeles is very interesting! If you live in the city, it is important to know how much water your home gets as well as what area of town gets watered by a pool or creek.
Overall, we are experiencing an above average rainy season right now. This means that most of Southern California is receiving more precipitation than normal which can be good or bad depending on where you reside.
If you love swimming then this is great because there has been some recent rains so you have access to fresh water for doing things like taking a shower or going swimming. However, if you hate wet feet then note that many parks do not offer shoes allowed due to excessive amounts of moisture.
This article will tell you about how much rain falls around the city and also gives some information about potential flooding issues.