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Average Weather in Delhi California, United States

In Delhi, the summers are hot, arid, and clear and the winters are short, cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 38°F to 96°F and is rarely below 30°F or above 103°F.

The hot season lasts for 3.7 months, from June 4 to September 24, with an average daily high temperature above 87°F. The hottest day of the year is July 18, with an average high of 96°F and low of 63°F.

The cool season lasts for 2.8 months, from November 22 to February 17, with an average daily high temperature below 63°F. The coldest day of the year is December 30, with an average low of 38°F and high of 54°F.

Average High and Low Temperature

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.

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

Average Hourly Temperature in Delhi12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecchillycoldcoolcomfortablewarmhot
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Delhi, 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 Delhi begins around May 11 and lasts for 5.5 months, ending around October 27. On August 8, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 92% of the time, and overcast or mostly cloudy 8% of the time.

The cloudier part of the year begins around October 27 and lasts for 6.5 months, ending around May 11. On February 6, the cloudiest day of the year, the sky is overcast or mostly cloudy 52% of the time, and clear, mostly clear, or partly cloudy 48% of the time.

Cloud Cover

Cloud Cover in Delhiclearercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 652%Feb 652%Aug 88%Aug 88%May 1131%May 1131%Oct 2730%Oct 2730%overcastpartly cloudymostly clearclear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

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

The wetter season lasts 5.1 months, from November 4 to April 7, with a greater than 15% chance of a given day being a wet day. The chance of a wet day peaks at 29% on February 20.

The drier season lasts 6.9 months, from April 7 to November 4. The smallest chance of a wet day is 0% on July 29.

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 29% on February 20.

Daily Chance of Precipitation

Daily Chance of Precipitation in Delhiwetwetdry0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 2029%Feb 2029%Jul 290%Jul 290%Jan 124%Jan 124%Nov 415%Nov 415%Apr 715%Apr 715%rainmixed
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).

Rainfall

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. Delhi experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.2 months, from October 6 to May 12, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around February 15, with an average total accumulation of 3.0 inches.

The rainless period of the year lasts for 4.8 months, from May 12 to October 6. The least rain falls around August 9, with an average total accumulation of 0.0 inches.

Average Monthly Rainfall

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 liquid-equivalent snowfall.

Sun

The length of the day in Delhi varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 35 minutes of daylight; the longest day is June 21, with 14 hours, 45 minutes of daylight.

Hours of Daylight and Twilight

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.

The earliest sunrise is at 5:41 AM on June 13, and the latest sunrise is 1 hour, 50 minutes later at 7:31 AM on November 4. The earliest sunset is at 4:44 PM on December 6, and the latest sunset is 3 hours, 43 minutes later at 8:28 PM on June 28.

Daylight saving time (DST) is observed in Delhi during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in Delhi12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecJun 135:41 AMJun 135:41 AM8:28 PMJun 288:28 PMJun 28Dec 64:44 PMDec 64:44 PM7:31 AMNov 47:31 AMNov 4Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnight
The solar day over the course of the year 2017. 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.

Humidity

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 Delhi, 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

Humidity Comfort Levels in Delhi0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 70%Feb 70%Jul 250%Jul 250%humidhumidcomfortablecomfortabledrydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Delhi experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.6 months, from April 10 to August 30, with average wind speeds of more than 3.9 miles per hour. The windiest day of the year is June 6, with an average hourly wind speed of 4.8 miles per hour.

The calmer time of year lasts for 7.3 months, from August 30 to April 10. The calmest day of the year is January 21, with an average hourly wind speed of 3.0 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Delhi varies throughout the year.

The wind is most often from the south for 1.0 weeks, from January 8 to January 15 and for 5.0 days, from January 30 to February 4, with a peak percentage of 29% on February 3. The wind is most often from the north for 2.1 weeks, from January 15 to January 30 and for 1.5 months, from November 25 to January 8, with a peak percentage of 28% on January 20. The wind is most often from the west for 9.7 months, from February 4 to November 25, with a peak percentage of 96% on July 18.

Wind Direction

Wind Direction in DelhiNWN0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestsoutheastnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Solar Energy

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 3.6 months, from May 6 to August 24, with an average daily incident shortwave energy per square meter above 7.3 kWh. The brightest day of the year is June 24, with an average of 8.5 kWh.

The darker period of the year lasts for 3.6 months, from November 3 to February 19, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is December 23, with an average of 2.3 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Delhibrightdarkdark0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWh10 kWhJanFebMarAprMayJunJulAugSepOctNovDecJun 248.5 kWhJun 248.5 kWhDec 232.3 kWhDec 232.3 kWhMay 67.3 kWhMay 67.3 kWhAug 247.3 kWhAug 247.3 kWhNov 33.6 kWhNov 33.6 kWhFeb 193.6 kWhFeb 193.6 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Delhi are 37.432 deg latitude, -120.779 deg longitude, and 115 ft elevation.

The topography within 2 miles of Delhi is essentially flat, with a maximum elevation change of 43 feet and an average elevation above sea level of 116 feet. Within 10 miles is essentially flat (197 feet). Within 50 miles contains only modest variations in elevation (5,007 feet).

The area within 2 miles of Delhi is covered by cropland (94%), within 10 miles by cropland (94%), and within 50 miles by cropland (40%) and grassland (38%).

Data Sources

This report illustrates the typical weather in Delhi, 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 Delhi.

For each station, the records are corrected for the elevation difference between that station and Delhi 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 Delhi is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Delhi and a given station.

The stations contributing to this reconstruction are: Castle Airport (57%, 19 kilometers, east); Modesto City-County Airport (37%, 26 kilometers, northwest); and Hollister Municipal Airport (7%, 82 kilometers, southwest).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.