Average Weather in Indio California, United States
In Indio, the summers are sweltering and arid, the winters are cool, and it is mostly clear year round. Over the course of the year, the temperature typically varies from 42°F to 107°F and is rarely below 33°F or above 113°F.
Based on the beach/pool score, the best time of year to visit Indio for hot-weather activities is from late May to late September.
The hot season lasts for 3.5 months, from June 3 to September 20, with an average daily high temperature above 99°F. The hottest day of the year is July 11, with an average high of 107°F and low of 79°F.
The cool season lasts for 3.2 months, from November 19 to February 25, with an average daily high temperature below 76°F. The coldest day of the year is December 26, with an average low of 42°F and high of 68°F.
Average High and Low Temperature
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 Indio, 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 Indio begins around April 9 and lasts for 6.9 months, ending around November 4. On September 17, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 90% of the time, and overcast or mostly cloudy 10% of the time.
The cloudier part of the year begins around November 4 and lasts for 5.1 months, ending around April 9. On February 20, the cloudiest day of the year, the sky is overcast or mostly cloudy 37% of the time, and clear, mostly clear, or partly cloudy 63% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Indio varies throughout the year.
The wetter season lasts 4.1 months, from November 22 to March 25, with a greater than 7% chance of a given day being a wet day. The chance of a wet day peaks at 14% on February 19.
The drier season lasts 7.9 months, from March 25 to November 22. The smallest chance of a wet day is 1% on June 12.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 14% on February 19.
Daily Chance of Precipitation
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. Indio experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 4.3 months, from November 19 to March 27, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around February 18, with an average total accumulation of 1.4 inches.
The rainless period of the year lasts for 7.7 months, from March 27 to November 19. The least rain falls around June 12, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day in Indio varies significantly over the course of the year. In 2020, the shortest day is December 21, with 9 hours, 55 minutes of daylight; the longest day is June 20, with 14 hours, 24 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:33 AM on June 12, and the latest sunrise is 1 hour, 30 minutes later at 7:03 AM on March 8. The earliest sunset is at 4:36 PM on December 4, and the latest sunset is 3 hours, 23 minutes later at 7:59 PM on June 28.
Daylight saving time (DST) is observed in Indio during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1.
Sunrise & Sunset with Twilight and Daylight Saving Time
Indio experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 2.8 months, from June 30 to September 24, during which time the comfort level is muggy, oppressive, or miserable at least 5% of the time. The muggiest day of the year is August 23, with muggy conditions 20% of the time.
The least muggy day of the year is December 7, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Indio experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.0 months, from March 14 to July 12, with average wind speeds of more than 7.7 miles per hour. The windiest day of the year is May 2, with an average hourly wind speed of 8.9 miles per hour.
The calmer time of year lasts for 8.0 months, from July 12 to March 14. The calmest day of the year is January 11, with an average hourly wind speed of 6.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Indio varies throughout the year.
The wind is most often from the west for 8.5 months, from February 12 to October 26, with a peak percentage of 66% on May 31. The wind is most often from the north for 3.5 months, from October 26 to February 12, with a peak percentage of 55% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Indio 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 times of year to visit Indio for general outdoor tourist activities are from early April to mid June and from mid September to late October, with a peak score in the first week of May.
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 Indio for hot-weather activities is from late May to late September, with a peak score in the third week of June.
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.
The growing season in Indio typically lasts for 12 months (364 days), from around December 28 to around December 26, rarely starting after February 17, or ending before November 25.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Indio should appear around January 14, only rarely appearing before January 10 or after January 19.
Growing Degree Days
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 April 20 to August 2, with an average daily incident shortwave energy per square meter above 7.6 kWh. The brightest day of the year is June 12, with an average of 8.7 kWh.
The darker period of the year lasts for 3.2 months, from November 4 to February 10, with an average daily incident shortwave energy per square meter below 4.3 kWh. The darkest day of the year is December 21, with an average of 3.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Indio are 33.721 deg latitude, -116.217 deg longitude, and 0 ft elevation.
The topography within 2 miles of Indio is essentially flat, with a maximum elevation change of 75 feet and an average elevation above sea level of -7 feet. Within 10 miles is essentially flat (4,383 feet). Within 50 miles also contains extreme variations in elevation (11,719 feet).
The area within 2 miles of Indio is covered by shrubs (53%) and artificial surfaces (38%), within 10 miles by shrubs (67%) and cropland (24%), and within 50 miles by shrubs (74%) and bare soil (11%).
This report illustrates the typical weather in Indio, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Indio.
For each station, the records are corrected for the elevation difference between that station and Indio 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 Indio is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Indio and a given station.
The stations contributing to this reconstruction are: Thermal Airport (77%, 12 kilometers, southeast); Palm Springs International Airport (19%, 29 kilometers, northwest); and Twenty-Nine Palms, Marine Corps Air-Ground Combat Center (3.9%, 65 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .