Climate and monthly weather forecast
Black Rock, AR

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Weather in January

January, the same as December, in Black Rock, Arkansas, is another chilly winter month, with an average temperature varying between 31.5°F (-0.3°C) and 45.1°F (7.3°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 45.1°F (7.3°C) and a low of 31.5°F (-0.3°C). Weather in January »

Weather in February

February, the last month of the winter in Black Rock, is also a frosty month, with an average temperature varying between 34.9°F (1.6°C) and 48.6°F (9.2°C). The shift into February records an average high-temperature of a still chilly 48.6°F (9.2°C), subtly varied from January's 45.1°F (7.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a refreshing month in Black Rock, Arkansas, with an average temperature ranging between min 43.3°F (6.3°C) and max 58.6°F (14.8°C). The arrival of March brings a temperature shift, with the average high-temperature escalating from a chilly 48.6°F (9.2°C) in February to a moderate 58.6°F (14.8°C). Weather in March »

Weather in April

April in Black Rock, Arkansas, is a pleasant spring month, with an average temperature varying between 52.2°F (11.2°C) and 69.1°F (20.6°C). As Black Rock transitions into April, the average high-temperature shows a change, moving from a mild 58.6°F (14.8°C) in March to an agreeable 69.1°F (20.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Black Rock, Arkansas, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 78.4°F (25.8°C). The arrival of May brings a change in Black Rock's weather, with average high-temperatures moving from April's agreeable 69.1°F (20.6°C) to a warm 78.4°F (25.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Black Rock, Arkansas, with an average temperature ranging between min 70°F (21.1°C) and max 87.6°F (30.9°C). A shift in the average high-temperature is noticeable in June, changing from a moderately hot 78.4°F (25.8°C) in May to a tropical 87.6°F (30.9°C). Weather in June »

Weather in July

July, the same as June, in Black Rock, Arkansas, is another tropical summer month, with an average temperature varying between 89.4°F (31.9°C) and 71.6°F (22°C). The month of July, characterized by an average high of 89.4°F (31.9°C) and a low of 71.6°F (22°C), is recognized as the warmest. The heat index in July is computed to be a blisteringly hot 107.6°F (42°C). Weather in July »

Weather in August

The last month of the summer, August, is another tropical month in Black Rock, Arkansas, with an average temperature varying between 69.4°F (20.8°C) and 87.8°F (31°C). Black Rock starts August with an average high-temperature of a still tropical 87.8°F (31°C), hinting at a minimal fluctuation from July. Weather in August »

Weather in September

September, the first month of the autumn in Black Rock, is also a moderately hot month, with an average temperature varying between 63.7°F (17.6°C) and 82°F (27.8°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a tropical 87.8°F (31°C) in August to a moderately hot 82°F (27.8°C). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Black Rock, Arkansas, with an average temperature varying between 52.9°F (11.6°C) and 71.2°F (21.8°C). The beginning of October involves a decrease in the average high-temperature, transitioning from a warm 82°F (27.8°C) in September to an agreeable 71.2°F (21.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is another mild month in Black Rock, Arkansas, with an average temperature ranging between max 57.6°F (14.2°C) and min 42.6°F (5.9°C). Black Rock in November undergoes a mild reduction in the average high-temperature, shifting from October's agreeable 71.2°F (21.8°C) to a mild 57.6°F (14.2°C). Weather in November »

Weather in December

December, the first month of the winter in Black Rock, is still a chilly month, with an average temperature ranging between min 36.1°F (2.3°C) and max 48.4°F (9.1°C). December's arrival comes with a decrease in the average high-temperature, moving from a mild 57.6°F (14.2°C) in November to a chilly 48.4°F (9.1°C). Weather in December »
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Black Rock?

With average high and low temperatures of 45.1°F (7.3°C) and 31.5°F (-0.3°C) respectively, January is Black Rock's coldest month.

How many days does it rain?

Throughout the year, there are 145.5 rainfall days, and 35.47" (901mm) of precipitation is accumulated.

When does it snow?

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

How many days does it snow?

In Black Rock, during the entire year, snow falls for 7.1 days and aggregates up to 3.82" (97mm) of snow.

What is the month with the lowest UV index?

The months with the lowest UV index in Black Rock are January and December, with an average maximum UV index of 2.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 2.1 days and typically aggregates up to 1.18" (30mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.9h of sunshine.

What is the most humid month?

With an average relative humidity of 78%, March is the most humid month.

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 wettest month?

April is the month with the most rainfall. Rain falls for 14.5 days and accumulates 4.61" (117mm) of precipitation.

When it does not snow?

April through September are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 14h and 36min of daylight.

What is the month with the most sunshine?

June and July, with an average of 10.7h of sunshine, are months with the most sunshine.

When is the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 7.

What time of the year is the hottest?

The warmest month is July, with an average high-temperature of 89.4°F (31.9°C) and an average low-temperature of 71.6°F (22°C).

What is the driest month?

September is the month with the least rainfall. Rain falls for 11 days and accumulates 2.2" (56mm) of precipitation.

What is the least humid month?

With an average relative humidity of 67%, October is the least humid month.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year.

Average temperature
Black Rock, AR

Average temperature - Black Rock, AR

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (45.1°F).

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure
Black Rock, AR

Average pressure - Black Rock, AR

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Black Rock, AR

Average wind speed - Black Rock, AR

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity
Black Rock, AR

Average humidity - Black Rock, AR

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (67%).

Average rainfall
Black Rock, AR

Average rainfall - Black Rock, AR

The wettest month (with the highest rainfall) is April (4.61").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days
Black Rock, AR

Average rainfall days - Black Rock, AR

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (8.7 days).

Average snowfall
Black Rock, AR

Average snowfall - Black Rock, AR

The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days
Black Rock, AR

Average snowfall days - Black Rock, AR

The month with the highest number of snowfall days is January (2.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Black Rock, AR

Average daylight / Average sunshine - Black Rock, AR

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days
Black Rock, AR

Average sunshine days - Black Rock, AR

The month with the most sunshine days is October (19.8 days).
The months with the least sunshine days are April and May (13.8 days).

Average UV index
Black Rock, AR

Average UV index - Black Rock, AR

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average visibility
Black Rock, AR

Average visibility - Black Rock, AR

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).

Black Rock, Arkansas, USA

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