Climate and monthly weather forecast
Webster, SD

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Weather in January

January, the same as December, in Webster, South Dakota, is a freezing cold winter month, with an average temperature ranging between max 18.9°F (-7.3°C) and min 5°F (-15°C). In Webster, January records the lowest average temperatures, peaking at 18.9°F (-7.3°C) and reaching a low of 5°F (-15°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Webster, South Dakota, with temperature in the range of an average high of 21.4°F (-5.9°C) and an average low of 7.2°F (-13.8°C). With the arrival of February, Webster's average high-temperature registers at a still freezing cold 21.4°F (-5.9°C), indicating a subtle variation from the previous month. Weather in February »

Weather in March

March, the first month of the spring in Webster, is an icy month, with an average temperature varying between 23.2°F (-4.9°C) and 37.6°F (3.1°C). Webster's weather in March is marked by a clear rise in the average high-temperature, moving up from February's subzero cold 21.4°F (-5.9°C) to a wintry 37.6°F (3.1°C). Weather in March »

Weather in April

April in Webster, South Dakota, is a fresh spring month, with an average temperature fluctuating between 51.1°F (10.6°C) and 35.1°F (1.7°C). The arrival of April signals an increase in the average high-temperature, moving from an icy 37.6°F (3.1°C) in March to a cool 51.1°F (10.6°C). Weather in April »

Weather in May

May, the last month of the spring in Webster, is a comfortable month, with an average temperature ranging between min 46.6°F (8.1°C) and max 64°F (17.8°C). In May, the average high-temperature increases from a fresh 51.1°F (10.6°C) in April to a refreshing 64°F (17.8°C). Weather in May »

Weather in June

June, the first month of the summer in Webster, is a warm month, with an average temperature ranging between min 56.3°F (13.5°C) and max 74.3°F (23.5°C). As May transitions into June, Webster sees a rise in the average high-temperature, moving from a refreshing 64°F (17.8°C) to a warm 74.3°F (23.5°C). Weather in June »

Weather in July

July, like June, in Webster, South Dakota, is another warm summer month, with an average temperature ranging between max 81°F (27.2°C) and min 61.3°F (16.3°C). July, on average, is the warmest month, registering a high temperature of 81°F (27.2°C) and a low of 61.3°F (16.3°C). The heat index in July is estimated at 84.2°F (29°C). Weather in July »

Weather in August

August, the last month of the summer in Webster, is another warm month, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 58.8°F (14.9°C). The dawn of August sees an average high-temperature of a still moderately hot 80.1°F (26.7°C), subtly contrasting with July's 81°F (27.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Webster, is also an agreeable month, with an average temperature ranging between min 51.3°F (10.7°C) and max 71.6°F (22°C). The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 80.1°F (26.7°C) in August to an agreeable 71.6°F (22°C). Weather in September »

Weather in October

October, like September, in Webster, South Dakota, is another fresh autumn month, with an average temperature fluctuating between 38.7°F (3.7°C) and 53.8°F (12.1°C). As October arrives, Webster's weather displays a notable decrease in high-temperatures, falling from September's agreeable 71.6°F (22°C) to a cool 53.8°F (12.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Webster, is another cold month, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 38.8°F (3.8°C). The shift from October to November sees a distinct decrease in the average high-temperature, dropping from a cool 53.8°F (12.1°C) to an icy 38.8°F (3.8°C). Weather in November »

Weather in December

December, the first month of the winter in Webster, is also a subzero cold month, with an average temperature ranging between max 23.2°F (-4.9°C) and min 11.5°F (-11.4°C). December signals a significant shift in the average high-temperature, falling from November's cold 38.8°F (3.8°C) to a subzero cold 23.2°F (-4.9°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Webster?

The coldest period in Webster tends to be January, when average temperatures fluctuate between a high of 18.9°F (-7.3°C) and a low of 5°F (-15°C).

What is the most humid month in Webster?

January is the most humid month, with an average relative humidity of 91%.

How many days does it rain in Webster?

Throughout the year, in Webster, there are 112.9 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

When does it snow in Webster?

Months with snowfall in Webster are January through May, October through December.

How much does it snow in Webster?

Throughout the year, in Webster, South Dakota, there are 68.4 snowfall days, and 23.74" (603mm) of snow is accumulated.

What is the month with the least sunshine in Webster?

The month with the least sunshine in Webster, South Dakota, is January, with an average of 3.2h of sunshine.

When is the lowest UV index in Webster?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Webster, South Dakota.

When is Daylight Saving Time (DST) in Webster?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow in Webster?

In Webster, South Dakota, snow does not fall in June through September.

When are the longest days in Webster?

The month with the longest days is June, with an average of 15h and 36min of daylight.

What are the months with the highest UV index in Webster?

The months with the highest UV index in Webster are June and July, with an average maximum UV index of 6.

What part of the year is the hottest in Webster?

Webster's warmest weather arrives in July, when temperatures average a high of 81°F (27.2°C) and a low of 61.3°F (16.3°C).

What is the wettest month in Webster?

The month with the most rainfall is July, when the rain falls for 14.4 days and typically aggregates up to 3.58" (91mm) of precipitation.

What month has the most sunshine in Webster?

July has the most sunshine of the year in Webster, South Dakota, with an average of 10.7h of sunshine.

What is the least humid month in Webster?

With an average relative humidity of 66%, September is the least humid month in Webster, South Dakota.

What is the driest month in Webster?

November is the month with the least rainfall. Rain falls for 4.6 days and accumulates 0.63" (16mm) of precipitation.

When does it snow the most in Webster?

The month with the most snowfall in Webster, South Dakota, is December, when snow falls for 14.6 days and typically aggregates up to 4.53" (115mm) of snow.

What is the month with the shortest days in Webster?

With an average of 8h and 48min of daylight, December has the shortest days of the year.

Average temperature
Webster, SD

Average temperature - Webster, SD

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure
Webster, SD

Average pressure - Webster, SD

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed
Webster, SD

Average wind speed - Webster, SD

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

Average humidity
Webster, SD

Average humidity - Webster, SD

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).

Average rainfall
Webster, SD

Average rainfall - Webster, SD

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days
Webster, SD

Average rainfall days - Webster, SD

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).

Average snowfall
Webster, SD

Average snowfall - Webster, SD

The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Webster, SD

Average snowfall days - Webster, SD

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Webster, SD

Average daylight / Average sunshine - Webster, SD

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days
Webster, SD

Average sunshine days - Webster, SD

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).

Average UV index
Webster, SD

Average UV index - Webster, SD

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average visibility
Webster, SD

Average visibility - Webster, SD

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

Webster, South Dakota, USA

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