Climate and monthly weather forecast
Goodwin, SD

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Weather in January

January, like December, is a freezing cold winter month in Goodwin, South Dakota, with an average temperature varying between 5.5°F (-14.7°C) and 19.4°F (-7°C). January, having an average high-temperature of 19.4°F (-7°C) and an average low-temperature of 5.5°F (-14.7°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Goodwin, is also a subzero cold month, with an average temperature ranging between max 22.5°F (-5.3°C) and min 8.4°F (-13.1°C). A minor adjustment in Goodwin's average high-temperature is noted with the start of February, touching a still freezing cold 22.5°F (-5.3°C) from January's 19.4°F (-7°C). Weather in February »

Weather in March

The first month of the spring, March, is an icy month in Goodwin, South Dakota, with temperature in the range of an average low of 23.7°F (-4.6°C) and an average high of 38.1°F (3.4°C). In Goodwin, stepping into March signifies a significant temperature increment, moving up from February's subzero cold 22.5°F (-5.3°C) to a cold 38.1°F (3.4°C). Weather in March »

Weather in April

April in Goodwin, South Dakota, is a cool spring month, with an average temperature ranging between min 35.2°F (1.8°C) and max 51.6°F (10.9°C). The arrival of April brings a change in Goodwin's weather, with average high-temperatures moving from March's cold 38.1°F (3.4°C) to a cool 51.6°F (10.9°C). Weather in April »

Weather in May

May, the last month of the spring in Goodwin, is an enjoyable month, with an average temperature ranging between min 46.9°F (8.3°C) and max 64.6°F (18.1°C). In Goodwin, stepping into May brings a temperature increase, moving up from April's cool 51.6°F (10.9°C) to a comfortable 64.6°F (18.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Goodwin, South Dakota, with an average temperature ranging between max 74.5°F (23.6°C) and min 56.8°F (13.8°C). The arrival of June brings an increase in high-temperatures, moving from a comfortable 64.6°F (18.1°C) in May to a moderately hot 74.5°F (23.6°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Goodwin, South Dakota, with an average temperature fluctuating between 80.8°F (27.1°C) and 60.8°F (16°C). With an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 60.8°F (16°C), July is the warmest month. Throughout July, the heat index is estimated at 84.2°F (29°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Goodwin, South Dakota, with an average temperature varying between 80.1°F (26.7°C) and 59°F (15°C). Goodwin's average high-temperature in August sits at a still moderately hot 80.1°F (26.7°C), showing little difference from the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Goodwin, South Dakota, with an average temperature fluctuating between 51.3°F (10.7°C) and 71.6°F (22°C). In Goodwin, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 80.1°F (26.7°C) to an agreeable 71.6°F (22°C). Weather in September »

Weather in October

October, like September, in Goodwin, South Dakota, is another fresh autumn month, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 39°F (3.9°C). A distinct shift in the average high-temperature is signaled in October, moving down from a pleasant 71.6°F (22°C) in September to a cool 54.3°F (12.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Goodwin, is another cold month, with an average temperature fluctuating between 26.4°F (-3.1°C) and 40.1°F (4.5°C). November brings a decrease in the average high-temperature, falling from October's cool 54.3°F (12.4°C) to a cold 40.1°F (4.5°C). Weather in November »

Weather in December

December, the first month of the winter in Goodwin, is also a subzero cold month, with an average temperature varying between 23.7°F (-4.6°C) and 12.4°F (-10.9°C). The arrival of December is marked by a notable decrease in high-temperatures, falling from an icy 40.1°F (4.5°C) in November to a freezing cold 23.7°F (-4.6°C). Weather in December »

Frequently asked questions

What is the coldest month?

Goodwin's coldest month, January, generally records average temperatures ranging from a high of 19.4°F (-7°C) to a low of 5.5°F (-14.7°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 90%.

What is the driest month?

The months with the least rainfall are January and February Rain falls for 2.9 days and accumulates 0.59" (15mm) of rain.

How much does it rain?

Throughout the year, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

What is the snowiest month?

The months with the most snowfall are January and December, with an average 3.74" (95mm) of accumulated snow.

How many days does it snow?

In Goodwin, during the entire year, snow falls for 64.3 days and aggregates up to 17.56" (446mm) of snow.

What is the month with the least sunshine?

With an average of 3.6h of sunshine, January has the least sunshine of the year.

What are the months with the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

When is Daylight Saving Time (DST)?

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.

What is the rainiest month?

June is the month with the most rainfall. Rain falls for 17.2 days and accumulates 3.19" (81mm) of precipitation.

When it does not snow?

In Goodwin, snow does not fall in June through September.

When are the longest days?

June has the longest days of the year, with an average of 15h and 30min of daylight.

What are the months with the highest UV index?

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

What part of the year is the hottest?

July is the warmest month, exhibiting average temperatures of 80.8°F (27.1°C) at the peak and 60.8°F (16°C) at the base.

What month has the most sunshine?

With an average of 10.7h of sunshine, July has the most sunshine of the year.

What is the least humid month?

September and October, with an average relative humidity of 68%, are the least humid months.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

Average temperature
Goodwin, SD

Average temperature - Goodwin, SD

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

Average pressure
Goodwin, SD

Average pressure - Goodwin, SD

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed
Goodwin, SD

Average wind speed - Goodwin, SD

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity
Goodwin, SD

Average humidity - Goodwin, SD

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).

Average rainfall
Goodwin, SD

Average rainfall - Goodwin, SD

The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").

Average rainfall days
Goodwin, SD

Average rainfall days - Goodwin, SD

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).

Average snowfall
Goodwin, SD

Average snowfall - Goodwin, SD

The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Goodwin, SD

Average snowfall days - Goodwin, SD

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Goodwin, SD

Average daylight / Average sunshine - Goodwin, SD

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

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 36min).

Average sunshine days
Goodwin, SD

Average sunshine days - Goodwin, SD

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).

Average visibility
Goodwin, SD

Average visibility - Goodwin, SD

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

Goodwin, South Dakota, USA

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