average weather in april for kolkata (calcutta), india - weatherspark

7/27/2019 Average Weather in April for Kolkata (Calcutta), India - WeatherSpark

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8/7/13 Average Weather In April For Kolkata (Calcutta), India - WeatherSpark

weatherspark.com/averages/33920/4/Kolkata-Calcutta-West-Bengal-India

Fraction of Time Spent in Various Temperature Bands in April

The average fraction of time spent in various temperature bands: frigid (below -9C), freezing (-9C

to 0C), cold (0C to 10C), cool (10C to 18C), comfortable (18C to 24C), warm (24C to 29C),

hot (29C to 38C) and sweltering (above 38C).

SunOver the course of April, the length of the day isgradually increasing. The shortest day of the month is April 1

with 12:23 hours of daylight; the longest day is April 30 with 12:58 hours of daylight.

Daily Hours of Daylight and Twilight in April

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 5:05am on April 30; the latest sunsetis at 6:03pm on April 30; the latest sunrise is a

5:29am on April 1; the earliest sunsetis at 5:52pm on April 1.

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


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Daily Sunrise & Sunset with Twilight in April

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.

CloudsThe median cloud cover ranges from 31% (mostly clear) to 43% (partly cloudy). The trend is for the sky to be

becoming cloudier with the median cloud cover increasing by 11% from the start to the end of the month.

Median Cloud Cover in April

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 April 1, the clearest day of the month, the sky is clear, mostly clear, or partly cloudy 79% of the time, and

overcast or mostly cloudy 10% of the time.


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On April 30, the cloudiest day of the month, the sky is overcast, mostly cloudy, or partly cloudy 52% of the

time, and clear or mostly clear43% of the time.

Cloud Cover Types in April

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.

PrecipitationThe probability that precipitation will be observed at this location varies throughout the month. Precipitation is

most likely around April 29, occurring in 36% of days. Precipitation is least likely around April 1, occurring in

22% of days.


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Probability of Precipitation at Some Point in the Day in April

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.

Throughout April, the most common forms of precipitation are thunderstorms and light rain.

Thunderstorms are the most severe precipitation observed during 85% of those days with precipitation. They

are most likely around April 27, when it is observed during 30% of all days.

Light rain is the most severe precipitation observed during 11% of those days with precipitation. It is most likelyaround April 30, when it is observed during 4% of all days.

Types of Precipitation Throughout April

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

SnowEither snow is exceptionally unlikely to fall at this location in April or this station does not reliably repor


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precipitation types.

HumidityThe relative humidity typically ranges from 45% (comfortable) to 93% (very humid) over the course of a typical

April, rarely dropping below 31% (comfortable) and reaching as high as 100% (very humid).

The air is driestaround April 1, at which time the relative humidity drops below 52% (mildly humid) three days

out of four; it is most humidaround April 9, rising above 89% (very humid) three days out of four.

Relative Humidity in April

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 PointDew 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 typical April, the dew point typically varies from 18C (mildy humid) to 26C (oppressive)

and is rarely below 14C (comfortable) or above 28C (very oppressive).


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Dew Point in April

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).

WindOver the course of April typical wind speeds vary from 0 m/s to 5 m/s (calm to gentle breeze), rarely exceeding

8 m/s (fresh breeze).

The highestaverage wind speed of 3 m/s (light breeze) occurs around April 23, at which time the average daily

maximum wind speed is 5 m/s (gentle breeze).

The lowestaverage wind speed of 2 m/s (light breeze) occurs around April 1, at which time the average daily

maximum wind speed is 4 m/s (gentle breeze).


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Wind Speed in April

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 south (16% of the time). The wind is least often out of the west (3% of the

time), north east (3% of the time), south west (4% of the time), and north west (4% of the time).

Wind Directions in April

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.


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weathersparkcom/averages/33920/4/Kolkata Calcutta West Bengal India

Vector Magic, Inc

Fraction of Time Spent with Various Wind Directions in April

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.
http://vectormagic.com/

average weather in april for kolkata (calcutta), india - weatherspark

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