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Average Weather For New Delhi, India

Location

This report describes the typical weather at the Indira Gandhi International Airport (New Delhi, India) weather station over the course of an average year. It is based on the historical records from 1996 to 2012. Earlier records are either unavailable or unreliable.

New Delhi has a hot semi-arid steppe climate. The area within 25 mi of this station is covered by croplands (87%) and built-up areas (9%).

Temperature

Over the course of a year, the temperature typically varies from 46°F to 104°F and is rarely below 40°F or above 112°F.

Daily High and Low Temperature

The daily average low (blue) and high (red) temperature with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).

The warm season lasts from April 9 to July 8 with an average daily high temperature above 97°F. The hottest day of the year is May 22, with an average high of 104°F and low of 82°F.

The cold season lasts from December 11 to February 11 with an average daily high temperature below 73°F. The coldest day of the year is January 4, with an average low of 46°F and high of 66°F.

Fraction of Time Spent in Various Temperature Bands

The average fraction of time spent in various temperature bands: frigid (below 15°F), freezing (15°F to 32°F), cold (32°F to 50°F), cool (50°F to 65°F), comfortable (65°F to 75°F), warm (75°F to 85°F), hot (85°F to 100°F) and sweltering (above 100°F).
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March 2017
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April 2017
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May 2017
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June 2017
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July 2017
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August 2017
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September 2017
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October 2017
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January 2018
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Sun

The length of the day varies significantly over the course of the year. The shortest day is December 21 with 10:19 hours of daylight; the longest day is June 20 with 13:58 hours of daylight.

Daily Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line), with various degrees of daylight, twilight, and night, indicated by the color bands. From bottom (most yellow) to top (most gray): full daylight, solar twilight (Sun is visible but less than 6° from the horizon), civil twilight (Sun is not visible but is less than 6° below the horizon), nautical twilight (Sun is between 6° and 12° below the horizon), astronomical twilight (Sun is between 12° and 18° below the horizon), and full night.

The earliest sunrise is at 5:23am on June 8 and the latest sunset is at 7:24pm on June 26. The latest sunrise is at 7:16am on January 12 and the earliest sunset is at 5:24pm on November 30.

Daylight savings time (DST) is not observed in 2012.

Daily Sunrise & Sunset with Twilight

The solar day over the course of the year 2012 . From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (solar, civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Clouds

The median cloud cover ranges from 2% (clear) to 64% (partly cloudy). The sky is cloudiest on July 28 and clearest on November 5. The clearer part of the year begins around September 18. The cloudier part of the year begins around May 31.

Median Cloud Cover

The median daily cloud cover (black line) with percentile bands (inner band from 40th to 60th percentile, outer band from 25th to 75th percentile).

On November 5, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 76% of the time, and overcast or mostly cloudy 4% of the time.

On July 28, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 72% of the time, and clear or mostly clear 23% of the time.

Cloud Cover Types

The fraction of time spent in each of the five sky cover categories. From top (most blue) to bottom (most gray), the categories are clear, mostly clear, partly cloudy, mostly cloudy, and overcast. Pink indicates missing data. Outside of the United States clear skies are often reported ambiguously, leading them to be lumped in with the missing data.

Precipitation

The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around July 27, occurring in 51% of days. Precipitation is least likely around November 20, occurring in 4% of days.

Probability of Precipitation at Some Point in the Day

The fraction of days in which various types of precipitation are observed. If more than one type of precipitation is reported in a given day, the more severe precipitation is counted. For example, if light rain is observed in the same day as a thunderstorm, that day counts towards the thunderstorm totals. The order of severity is from the top down in this graph, with the most severe at the bottom.

Over the entire year, the most common forms of precipitation are thunderstorms, light rain, and moderate rain.

Thunderstorms are the most severe precipitation observed during 69% of those days with precipitation. They are most likely around July 27, when it is observed during 33% of all days.

Light rain is the most severe precipitation observed during 14% of those days with precipitation. It is most likely around July 28, when it is observed during 10% of all days.

Moderate rain is the most severe precipitation observed during 11% of those days with precipitation. It is most likely around July 7, when it is observed during 6% of all days.

Types of Precipitation Throughout the Year

Relative frequency of various types of precipitation over the course of a typical year.

During the warm season, which lasts from April 9 to July 8, there is a 29% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of thunderstorms (78% of days with precipitation have at worst thunderstorms), light rain (10%), and moderate rain (8%).

During the cold season, which lasts from December 11 to February 11, there is a 8% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of thunderstorms (52% of days with precipitation have at worst thunderstorms), moderate rain (18%), drizzle (16%), and light rain (14%).

Warm Season Precipitation

Cold Season Precipitation

Relative frequency of various types of precipitation during the warm and cold seasons respectively.

Snow

Either snow is exceptionally unlikely to fall at any time during the year at this location or this station does not reliably report precipitation types.

Humidity

The relative humidity typically ranges from 17% (dry) to 95% (very humid) over the course of the year, rarely dropping below 11% (very dry) and reaching as high as 100% (very humid).

The air is driest around April 19, at which time the relative humidity drops below 21% (dry) three days out of four; it is most humid around January 9, exceeding 95% (very humid) three days out of four.

Relative Humidity

The average daily high (blue) and low (brown) relative humidity with percentile bands (inner bands from 25th to 75th percentile, outer bands from 10th to 90th percentile).

Dew Point

Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.

Over the course of a year, the dew point typically varies from 41°F (dry) to 79°F (oppressive) and is rarely below 33°F (dry) or above 84°F (very oppressive).

There are two periods in the year that are most comfortable: The first is between January 19 and May 21 and the second is between October 17 and December 31. The air feels neither too dry nor too muggy during these periods.

Dew Point

The daily average low (blue) and high (red) dew point with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).

Wind

Over the course of the year typical wind speeds vary from 0 mph to 16 mph (calm to moderate breeze), rarely exceeding 24 mph (fresh breeze).

The highest average wind speed of 8 mph (gentle breeze) occurs around May 29, at which time the average daily maximum wind speed is 16 mph (moderate breeze).

The lowest average wind speed of 3 mph (light air) occurs around November 2, at which time the average daily maximum wind speed is 8 mph (gentle breeze).

Wind Speed

The average daily minimum (red), maximum (green), and average (black) wind speed with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).
The wind is most often out of the west (20% of the time), east (13% of the time), and north west (11% of the time). The wind is least often out of the south (3% of the time) and north (4% of the time).

Wind Directions Over the Entire Year

The fraction of time spent with the wind blowing from the various directions over the entire year. Values do not sum to 100% because the wind direction is undefined when the wind speed is zero.

Fraction of Time Spent with Various Wind Directions

The fraction of time spent with the wind blowing from the various directions on a daily basis. Stacked values do not always sum to 100% because the wind direction is undefined when the wind speed is zero.