Climate and monthly weather forecast
Rock Anna, MD

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Weather in January

January, the same as December, is a wintry winter month in Rock Anna, Maryland, with an average temperature ranging between min 28.4°F (-2°C) and max 39.6°F (4.2°C). In Rock Anna, the lowest average temperatures are observed in January, with a high of 39.6°F (4.2°C) and a low of 28.4°F (-2°C). Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Rock Anna, Maryland, with an average temperature varying between 43.2°F (6.2°C) and 30.7°F (-0.7°C). With the onset of February, Rock Anna's average high-temperature clocks in at a frosty 43.2°F (6.2°C), showing a minor fluctuation from the previous month. Weather in February »

Weather in March

March, the first month of the spring in Rock Anna, is a cool month, with an average temperature ranging between min 37.8°F (3.2°C) and max 50.7°F (10.4°C). With the onset of March, Rock Anna experiences a subtle temperature shift, with the average high-temperature moving from a chilly 43.2°F (6.2°C) in February to a fresh 50.7°F (10.4°C). Weather in March »

Weather in April

April in Rock Anna, Maryland, is a comfortable spring month, with an average temperature fluctuating between 47.5°F (8.6°C) and 62.8°F (17.1°C). As Rock Anna transitions into April, the average high-temperature is observed to rise from a cool 50.7°F (10.4°C) in March to a comfortable 62.8°F (17.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Rock Anna, Maryland, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 72.1°F (22.3°C). With the onset of May, Rock Anna's average high-temperature sees a rise, moving from April's enjoyable 62.8°F (17.1°C) to an agreeable 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Rock Anna, Maryland, with an average temperature ranging between max 80.2°F (26.8°C) and min 65.7°F (18.7°C). The start of June signals a slight increase in the average high-temperature, moving from a pleasant 72.1°F (22.3°C) in May to a warm 80.2°F (26.8°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Rock Anna, Maryland, with an average temperature fluctuating between 85.6°F (29.8°C) and 70.7°F (21.5°C). July is the month when Rock Anna's temperatures reach their peak, with averages of 85.6°F (29.8°C) and lows of 70.7°F (21.5°C). July's heat index is appraised at a sweltering 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Rock Anna, is another warm month, with an average temperature varying between 69.1°F (20.6°C) and 83.7°F (28.7°C). Rock Anna experiences a subtle adjustment in high-temperatures to a still warm 83.7°F (28.7°C) with the onset of August, maintaining near parity with July's 85.6°F (29.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Rock Anna, is also a moderately hot month, with an average temperature ranging between min 63.3°F (17.4°C) and max 77.4°F (25.2°C). Rock Anna records a mild change in average high-temperature during September, easing from a warm 83.7°F (28.7°C) in August to a still moderately hot 77.4°F (25.2°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Rock Anna, Maryland, with temperature in the range of an average high of 65.5°F (18.6°C) and an average low of 52.9°F (11.6°C). With October's arrival, Rock Anna sees a decrease in average high-temperatures, moving from a warm 77.4°F (25.2°C) in September to a comfortable 65.5°F (18.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Rock Anna, Maryland, with an average temperature ranging between max 53.8°F (12.1°C) and min 41.4°F (5.2°C). November suggests a modest reduction in the average high-temperature, shifting from an enjoyable 65.5°F (18.6°C) in October to a fresh 53.8°F (12.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Rock Anna, Maryland, with an average temperature ranging between max 45.5°F (7.5°C) and min 34.7°F (1.5°C). Start of December brings a slight shift in the average high-temperature, dipping a bit from November's cool 53.8°F (12.1°C) to a frosty 45.5°F (7.5°C). Weather in December »
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January tends to be the coldest month, with temperatures averaging a daily high of 39.6°F (4.2°C) and a low of 28.4°F (-2°C).

What are the least humid months?

The months with the lowest humidity in Rock Anna are January, March, April and November, with an average relative humidity of 72%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 9.9 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain?

In Rock Anna, during the entire year, the rain falls for 156.2 days and collects up to 31.34" (796mm) of precipitation.

When does it snow?

January through April, November and December are months with snowfall.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 4.4 days and typically aggregates up to 2.05" (52mm) of snow.

How many days does it snow?

Throughout the year, there are 14 snowfall days, and 6.14" (156mm) of snow is accumulated.

What is the month with the lowest UV index?

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

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 EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the most humid month?

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

When it does not snow?

May through October are months without snowfall.

When is the highest UV index?

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

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What part of the year is the hottest?

The warmest period in Rock Anna is July, when temperatures fluctuate between an average high of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C).

What month has the most sunshine?

With an average of 10.9h of sunshine, July has the most sunshine of the year.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 13.9 days and accumulates 3.54" (90mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the month with the least sunshine?

With an average of 5h of sunshine, December has the least sunshine of the year.

Average temperature
Rock Anna, MD

Average temperature - Rock Anna, MD

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure
Rock Anna, MD

Average pressure - Rock Anna, MD

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Rock Anna, MD

Average wind speed - Rock Anna, MD

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity
Rock Anna, MD

Average humidity - Rock Anna, MD

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall
Rock Anna, MD

Average rainfall - Rock Anna, MD

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days
Rock Anna, MD

Average rainfall days - Rock Anna, MD

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall
Rock Anna, MD

Average snowfall - Rock Anna, MD

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Rock Anna, MD

Average snowfall days - Rock Anna, MD

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Rock Anna, MD

Average daylight / Average sunshine - Rock Anna, MD

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days
Rock Anna, MD

Average sunshine days - Rock Anna, MD

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index
Rock Anna, MD

Average UV index - Rock Anna, MD

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average visibility
Rock Anna, MD

Average visibility - Rock Anna, MD

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).

Rock Anna, Maryland, USA

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