Climate and monthly weather forecast
Frederick, SD

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Weather in January

January, the same as December, in Frederick, South Dakota, is another subzero cold winter month, with an average temperature ranging between min 5.4°F (-14.8°C) and max 19.8°F (-6.8°C). Frederick's January weather, with an average high temperature of 19.8°F (-6.8°C) and an average low temperature of 5.4°F (-14.8°C), tends to be the coldest of the year. Weather in January »

Weather in February

February, the last month of the winter in Frederick, is also a subzero cold month, with an average temperature ranging between max 22.3°F (-5.4°C) and min 7.3°F (-13.7°C). The shift into February finds Frederick at an average high-temperature of a still freezing cold 22.3°F (-5.4°C), closely comparable to January's conditions. Weather in February »

Weather in March

March, the first month of the spring in Frederick, is a wintry month, with an average temperature ranging between max 37.6°F (3.1°C) and min 23°F (-5°C). As Frederick welcomes March, there is a noticeable shift in the average high-temperature, escalating from February's freezing cold 22.3°F (-5.4°C) to a cold 37.6°F (3.1°C). Weather in March »

Weather in April

April is a cool spring month in Frederick, South Dakota, with an average temperature varying between 52.2°F (11.2°C) and 35.2°F (1.8°C). April's arrival brings a noticeable temperature shift, escalating from an icy 37.6°F (3.1°C) in March to a fresh 52.2°F (11.2°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Frederick, South Dakota, with an average temperature fluctuating between 46.9°F (8.3°C) and 65.8°F (18.8°C). As May arrives, Frederick's weather shows an increase in high-temperatures, moving from April's cool 52.2°F (11.2°C) to a refreshing 65.8°F (18.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Frederick, South Dakota, with an average temperature varying between 56.7°F (13.7°C) and 75.6°F (24.2°C). Frederick, South Dakota, in June experiences an increase in the average high-temperature, moving from May's refreshing 65.8°F (18.8°C) to a warm 75.6°F (24.2°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Frederick, South Dakota, with an average temperature varying between 61.7°F (16.5°C) and 82.9°F (28.3°C). The month of July, characterized by an average high of 82.9°F (28.3°C) and a low of 61.7°F (16.5°C), is recognized as the warmest. July's mean heat index is evaluated at a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Frederick, South Dakota, with an average temperature fluctuating between 59.5°F (15.3°C) and 81.9°F (27.7°C). The average high-temperature in August, at a still warm 81.9°F (27.7°C), reveals a modest deviation from July's 82.9°F (28.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Frederick, is also an agreeable month, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 52.2°F (11.2°C). The onset of September introduces a moderate change in Frederick's weather, with average high-temperatures falling from August's warm 81.9°F (27.7°C) to an agreeable 72.7°F (22.6°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Frederick, South Dakota, with an average temperature varying between 54.9°F (12.7°C) and 39.2°F (4°C). October is characterized by a clear drop in the average high-temperature, falling from September's agreeable 72.7°F (22.6°C) to a fresh 54.9°F (12.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Frederick, is also an icy month, with temperature in the range of an average high of 39.9°F (4.4°C) and an average low of 25.9°F (-3.4°C). As October transitions into November, a clear downswing in temperatures is observed, with average highs retreating from a cool 54.9°F (12.7°C) to a cold 39.9°F (4.4°C). Weather in November »

Weather in December

December, the first month of the winter in Frederick, is still a freezing cold month, with an average temperature varying between 11.8°F (-11.2°C) and 23.7°F (-4.6°C). The start of December brings a distinct shift in the average high-temperature, dropping from November's icy 39.9°F (4.4°C) to a subzero cold 23.7°F (-4.6°C). Weather in December »

Frequently asked questions

What time of the year is the coldest?

January proves to be the coldest month, recording an average maximum temperature of 19.8°F (-6.8°C) and a minimum temperature of 5.4°F (-14.8°C).

What is the most humid month?

With an average relative humidity of 89%, January is the most humid month.

What is the driest month in Frederick?

The month with the least rainfall in Frederick is January, when the rain falls for 1.7 days and typically collects 0.39" (10mm) of precipitation.

How much does it rain?

Throughout the year, there are 92.3 rainfall days, and 15.28" (388mm) of precipitation is accumulated.

When does it snow?

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

What is the snowiest month?

The months with the most snowfall are January and December, with an average 2.76" (70mm) of accumulated snow.

How many days does it snow?

In Frederick, during the entire year, snow falls for 54.6 days and aggregates up to 15.04" (382mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.8h of sunshine.

When is the lowest UV index?

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

When is Daylight Saving Time (DST) in Frederick?

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?

The month with the most rainfall in Frederick is June, when the rain falls for 14.3 days and typically aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Frederick?

June through September are months without snowfall.

When are the longest days?

The month with the longest days in Frederick is June, with an average of 15h and 42min 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 in Frederick.

What part of the year is the hottest in Frederick?

July, noted for its average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 61.7°F (16.5°C), is considered the warmest month.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11h of sunshine.

What is the least humid month?

August and September, with an average relative humidity of 61%, 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 42min of daylight.

Average temperature
Frederick, SD

Average temperature - Frederick, SD

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (19.8°F).

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

Average pressure
Frederick, SD

Average pressure - Frederick, 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
Frederick, SD

Average wind speed - Frederick, SD

The windiest months (with the highest average wind speed) are April and October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).

Average humidity
Frederick, SD

Average humidity - Frederick, SD

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are August and September (61%).

Average rainfall
Frederick, SD

Average rainfall - Frederick, SD

The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days
Frederick, SD

Average rainfall days - Frederick, SD

The month with the highest number of rainy days is June (14.3 days).
The month with the least rainy days is January (1.7 days).

Average snowfall
Frederick, SD

Average snowfall - Frederick, SD

The months with the highest snowfall are January and December (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Frederick, SD

Average snowfall days - Frederick, SD

The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Frederick, SD

Average daylight / Average sunshine - Frederick, SD

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days
Frederick, SD

Average sunshine days - Frederick, SD

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).

Average UV index
Frederick, SD

Average UV index - Frederick, 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
Frederick, SD

Average visibility - Frederick, SD

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

Frederick, South Dakota, USA

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