Climate and monthly weather forecast
Roy, MS

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Weather in January

January, like December, in Roy, Mississippi, is another fresh winter month, with an average temperature ranging between max 55°F (12.8°C) and min 38.3°F (3.5°C). The month of January, characterized by an average high of 55°F (12.8°C) and a low of 38.3°F (3.5°C), is recognized as the coldest. Weather in January »

Weather in February

The last month of the winter, February, is a mild month in Roy, Mississippi, with an average temperature varying between 42.4°F (5.8°C) and 60.1°F (15.6°C). February's onset sees an average high-temperature of a mild 60.1°F (15.6°C), exhibiting a slight fluctuation from the previous month. Weather in February »

Weather in March

March, the first month of the spring in Roy, is a comfortable month, with an average temperature fluctuating between 67.8°F (19.9°C) and 48.7°F (9.3°C). As Roy transitions into March, a marginal rise in the average high-temperature is observed, moving from a moderate 60.1°F (15.6°C) in February to an enjoyable 67.8°F (19.9°C). Weather in March »

Weather in April

April is a moderately hot spring month in Roy, Mississippi, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 76.8°F (24.9°C). With the onset of April, Roy experiences a temperature shift, with the average high-temperature moving from a refreshing 67.8°F (19.9°C) in March to a moderately hot 76.8°F (24.9°C). Weather in April »

Weather in May

The last month of the spring, May, is another warm month in Roy, Mississippi, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 84°F (28.9°C). Roy's transition into May sees a mild rise in the average high-temperature, edging from a warm 76.8°F (24.9°C) in April to a still moderately hot 84°F (28.9°C). Weather in May »

Weather in June

June, the first month of the summer in Roy, is a tropical month, with an average temperature fluctuating between 70°F (21.1°C) and 91°F (32.8°C). Roy in June experiences a slight uptick in the average high-temperature, adjusting from May's warm 84°F (28.9°C) to a tropical 91°F (32.8°C). Weather in June »

Weather in July

July, like June, is another tropical summer month in Roy, Mississippi, with an average temperature varying between 71.8°F (22.1°C) and 91.9°F (33.3°C). Roy's warmest temperatures are experienced in July, with average high temperatures of 91.9°F (33.3°C) and lows of 71.8°F (22.1°C). July's mean heat index is appraised at a burning hot 116.6°F (47°C). Weather in July »

Weather in August

August, the last month of the summer in Roy, is another hot month, with an average temperature fluctuating between 71.8°F (22.1°C) and 91.4°F (33°C). The commencement of August brings an average high-temperature of a still hot 91.4°F (33°C), marking an inconsequential divergence from July. Weather in August »

Weather in September

September, the first month of the autumn in Roy, is also a hot month, with temperature in the range of an average high of 87.8°F (31°C) and an average low of 67.1°F (19.5°C). The commencement of September introduces an average high-temperature of a still tropical 87.8°F (31°C), closely mirroring the preceding month. Weather in September »

Weather in October

October, like September, in Roy, Mississippi, is a moderately hot autumn month, with an average temperature ranging between max 77.5°F (25.3°C) and min 56.3°F (13.5°C). The shift from September to October involves a decrease in the average high-temperature, dropping from a tropical 87.8°F (31°C) to a moderately hot 77.5°F (25.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in Roy, Mississippi, with an average temperature ranging between min 45.7°F (7.6°C) and max 65.3°F (18.5°C). With November's arrival, Roy's weather changes as the average high-temperature falls from a warm 77.5°F (25.3°C) in October to a refreshing 65.3°F (18.5°C). Weather in November »

Weather in December

December, the first month of the winter in Roy, is also a moderate month, with temperature in the range of an average high of 57.9°F (14.4°C) and an average low of 42.6°F (5.9°C). December signifies a gentle decline in Roy's average high-temperature, easing from an enjoyable 65.3°F (18.5°C) in November to a still refreshing 57.9°F (14.4°C). Weather in December »
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

With average high temperatures of 55°F (12.8°C) and lows of 38.3°F (3.5°C), January is the coldest month.

How much does it rain?

In Roy, during the entire year, the rain falls for 165.6 days and collects up to 36.06" (916mm) of precipitation.

When does it snow?

Months with snowfall in Roy are January through March and December.

How much does it snow in Roy?

Throughout the year, there are 2.7 snowfall days, and 1.06" (27mm) of snow is accumulated.

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.

When it does not snow?

In Roy, snow does not fall in April through November.

When are the longest days in Roy?

The month with the longest days is June, with an average of 14h and 12min of daylight.

What month has the most sunshine?

June has the most sunshine of the year, with an average of 10.5h of sunshine.

When is the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What are the warmest months?

In Roy, July records the average highest temperatures, peaking at 91.9°F (33.3°C) and reaching a low of 71.8°F (22.1°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 71%.

What is the driest month?

November is the month with the least rainfall. Rain falls for 8 days and accumulates 2.09" (53mm) of precipitation.

What is the most humid month?

December is the most humid month, with an average relative humidity of 81%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 13.1 days and accumulates 3.86" (98mm) of precipitation.

What is the snowiest month in Roy?

December is the month with the most snowfall in Roy. Snow falls for 0.8 days and accumulates 0.43" (11mm) of snow.

What is the month with the shortest days?

With an average of 10h and 6min of daylight, December has the shortest days of the year.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4.8h of sunshine.

When is the lowest UV index in Roy?

December is the month with the lowest UV index, with an average maximum UV index of 2.

Average temperature
Roy, MS

Average temperature - Roy, MS

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (55°F).

The months with the highest average low temperature are July and August (71.8°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).

Average pressure
Roy, MS

Average pressure - Roy, MS

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed
Roy, MS

Average wind speed - Roy, MS

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity
Roy, MS

Average humidity - Roy, MS

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Roy, MS

Average rainfall - Roy, MS

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is November (2.09").

Average rainfall days
Roy, MS

Average rainfall days - Roy, MS

The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (8 days).

Average snowfall
Roy, MS

Average snowfall - Roy, MS

The month with the highest snowfall is December (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days
Roy, MS

Average snowfall days - Roy, MS

The months with the highest number of snowfall days are January and December (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Roy, MS

Average daylight / Average sunshine - Roy, MS

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days
Roy, MS

Average sunshine days - Roy, MS

The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (7.5 days).

Average visibility
Roy, MS

Average visibility - Roy, MS

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

Roy, Mississippi, USA

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