Climate and monthly weather forecast
Hamill, SD

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Weather in January

January, like December, is another subzero cold winter month in Hamill, South Dakota, with temperature in the range of an average high of 28.8°F (-1.8°C) and an average low of 15.6°F (-9.1°C). Hamill records the coldest temperatures in January, averaging a high of 28.8°F (-1.8°C) and a low of 15.6°F (-9.1°C). Weather in January »

Weather in February

February, the last month of the winter in Hamill, is an icy month, with an average temperature varying between 18.1°F (-7.7°C) and 32.5°F (0.3°C). February commences with an average high-temperature of an icy 32.5°F (0.3°C), showing little deviation from January's 28.8°F (-1.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Hamill, South Dakota, with an average temperature varying between 30.6°F (-0.8°C) and 46.6°F (8.1°C). With the onset of March, Hamill's weather sees a temperature rise, transitioning from an icy 32.5°F (0.3°C) in February to a frosty 46.6°F (8.1°C). Weather in March »

Weather in April

April is a moderate spring month in Hamill, South Dakota, with an average temperature varying between 39.2°F (4°C) and 56.7°F (13.7°C). A rise in the average high-temperature is observed during April, moving from a frosty 46.6°F (8.1°C) in March to a moderate 56.7°F (13.7°C). Weather in April »

Weather in May

May, the last month of the spring in Hamill, is a comfortable month, with an average temperature varying between 49.6°F (9.8°C) and 67.8°F (19.9°C). Hamill's transition into May is marked by a rise in the average high-temperature, advancing from a mild 56.7°F (13.7°C) in April to an enjoyable 67.8°F (19.9°C). Weather in May »

Weather in June

June, the first month of the summer in Hamill, is a moderately hot month, with an average temperature ranging between min 61°F (16.1°C) and max 80.2°F (26.8°C). The arrival of June sees a shift in the average high-temperature, moving from an enjoyable 67.8°F (19.9°C) in May to a moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July is a tropical summer month in Hamill, South Dakota, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 88°F (31.1°C). July is the month when Hamill, South Dakota, sees the highest average temperatures, with a high of 88°F (31.1°C) and a low of 66.7°F (19.3°C). July's average heat index is computed to be a very hot 95°F (35°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Hamill, South Dakota, with an average temperature varying between 85.8°F (29.9°C) and 63.9°F (17.7°C). As July transitions into August, Hamill records an average high-temperature of a moderately hot 85.8°F (29.9°C), showing a gentle shift from the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Hamill, South Dakota, with an average temperature fluctuating between 76.6°F (24.8°C) and 56.3°F (13.5°C). September's onset corresponds with a shift in the average high-temperature, moving from 85.8°F (29.9°C) in August to a still moderately hot 76.6°F (24.8°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Hamill, South Dakota, with an average temperature varying between 59.2°F (15.1°C) and 42.8°F (6°C). The onset of October witnesses a clear shift in the average high-temperature, dropping from a warm 76.6°F (24.8°C) in September to a refreshing 59.2°F (15.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Hamill, is another chilly month, with an average temperature ranging between max 46.6°F (8.1°C) and min 31.1°F (-0.5°C). With November's arrival, Hamill's weather changes as the average high-temperature falls from a refreshing 59.2°F (15.1°C) in October to a frosty 46.6°F (8.1°C). Weather in November »

Weather in December

December, the first month of the winter in Hamill, is also a subzero cold month, with an average temperature varying between 18.3°F (-7.6°C) and 31.1°F (-0.5°C). The beginning of December signals a clear reduction in the average high-temperature, falling from a chilly 46.6°F (8.1°C) in November to a subzero cold 31.1°F (-0.5°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Hamill?

The coldest period in Hamill, South Dakota, is January, when temperatures fluctuate between an average high of 28.8°F (-1.8°C) and a low of 15.6°F (-9.1°C).

What is the most humid month in Hamill?

January is the most humid month in Hamill, with an average relative humidity of 82%.

What is the driest month in Hamill?

The month with the least rainfall in Hamill is January, when the rain falls for 2.7 days and typically collects 0.47" (12mm) of precipitation.

How much does it rain in Hamill?

In Hamill, during the entire year, the rain falls for 103.9 days and collects up to 16.85" (428mm) of precipitation.

When does it snow in Hamill?

January through May, October through December are months with snowfall in Hamill, South Dakota.

How much does it snow in Hamill?

Throughout the year, in Hamill, there are 39.7 snowfall days, and 14.45" (367mm) of snow is accumulated.

What is the month with the least sunshine in Hamill?

January has the least sunshine of the year in Hamill, South Dakota, with an average of 4.9h of sunshine.

When is Daylight Saving Time (DST) in Hamill?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Hamill, 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.

What is the wettest month in Hamill?

The month with the most rainfall in Hamill is June, when the rain falls for 15.3 days and typically aggregates up to 2.8" (71mm) of precipitation.

When it does not snow in Hamill?

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

When are the longest days in Hamill?

With an average of 15h and 24min of daylight, June has the longest days of the year in Hamill, South Dakota.

When is the highest UV index in Hamill?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the hottest time of year in Hamill?

Hamill's warmest temperatures are experienced in July, with average high temperatures of 88°F (31.1°C) and lows of 66.7°F (19.3°C).

What month has the most sunshine in Hamill?

The month with the most sunshine in Hamill is July, with an average of 11.4h of sunshine.

What are the least humid months in Hamill?

The months with the lowest humidity in Hamill are August and September, with an average relative humidity of 57%.

What is the snowiest month in Hamill?

The month with the most snowfall in Hamill is December, when snow falls for 8 days and typically aggregates up to 3.19" (81mm) of snow.

What is the month with the shortest days in Hamill?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

When is the lowest UV index in Hamill?

December is the month with the lowest UV index, with an average maximum UV index of 1.

Average temperature
Hamill, SD

Average temperature - Hamill, SD

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure
Hamill, SD

Average pressure - Hamill, SD

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed
Hamill, SD

Average wind speed - Hamill, SD

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

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Average humidity
Hamill, SD

Average humidity - Hamill, SD

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).

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Average rainfall
Hamill, SD

Average rainfall - Hamill, SD

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days
Hamill, SD

Average rainfall days - Hamill, SD

The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).

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Average snowfall
Hamill, SD

Average snowfall - Hamill, SD

The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Hamill, SD

Average snowfall days - Hamill, SD

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Hamill, SD

Average daylight / Average sunshine - Hamill, SD

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days
Hamill, SD

Average sunshine days - Hamill, SD

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).

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Average visibility
Hamill, SD

Average visibility - Hamill, SD

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

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Hamill, South Dakota, USA

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