Climate and monthly weather forecast
Chatham Hills, MD

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Weather in January

January, like December, in Chatham Hills, Maryland, is a wintry winter month, with an average temperature fluctuating between 39.6°F (4.2°C) and 28.4°F (-2°C). Temperature readings reach their annual highs in January, averaging 39.6°F (4.2°C) and a minimum average of 28.4°F (-2°C). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Chatham Hills, Maryland, with an average temperature fluctuating between 43.2°F (6.2°C) and 30.7°F (-0.7°C). The average high-temperature during February is a chilly 43.2°F (6.2°C), almost matching the conditions of the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Chatham Hills, Maryland, with an average temperature fluctuating between 37.8°F (3.2°C) and 50.7°F (10.4°C). Chatham Hills's transition into March is noticed by a slight rise in the average high-temperature, advancing 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 Chatham Hills, Maryland, is a comfortable spring month, with an average temperature varying between 62.8°F (17.1°C) and 47.5°F (8.6°C). The commencement of April sees a shift in the average high-temperature, moving from a fresh 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 Chatham Hills, Maryland, with an average temperature varying between 57.2°F (14°C) and 72.1°F (22.3°C). A shift in the average high-temperature is noticeable in May, changing from an enjoyable 62.8°F (17.1°C) in April to an agreeable 72.1°F (22.3°C). Weather in May »

Weather in June

June, the first month of the summer in Chatham Hills, is a warm month, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 80.2°F (26.8°C). A slight uplift in the average high-temperature marks June, adjusting from May's agreeable 72.1°F (22.3°C) to a moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July, like June, in Chatham Hills, Maryland, is another warm summer month, with an average temperature varying between 70.7°F (21.5°C) and 85.6°F (29.8°C). In Chatham Hills, July is identified by the highest average temperatures, reaching a peak of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C). For July, the heat index is estimated at a sweltering 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Chatham Hills, is another warm month, with an average temperature varying between 83.7°F (28.7°C) and 69.1°F (20.6°C). The average high-temperature during August registers at a still moderately hot 83.7°F (28.7°C), maintaining a close resemblance to the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Chatham Hills, Maryland, with an average temperature ranging between max 77.4°F (25.2°C) and min 63.3°F (17.4°C). The start of September involves a subtle temperature drop, shifting from a moderately hot 83.7°F (28.7°C) in August to a still warm 77.4°F (25.2°C). Weather in September »

Weather in October

October, like September, in Chatham Hills, Maryland, is another enjoyable autumn month, with an average temperature fluctuating between 52.9°F (11.6°C) and 65.5°F (18.6°C). In Chatham Hills, entering October brings a temperature decrement, reducing from September's moderately hot 77.4°F (25.2°C) to an enjoyable 65.5°F (18.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Chatham Hills, is also a fresh month, with temperature in the range of an average low of 41.4°F (5.2°C) and an average high of 53.8°F (12.1°C). A change in temperatures is noted as October gives way to November, with average highs reducing from a refreshing 65.5°F (18.6°C) to a cool 53.8°F (12.1°C). Weather in November »

Weather in December

December, the first month of the winter in Chatham Hills, is also a frosty month, with an average temperature ranging between max 45.5°F (7.5°C) and min 34.7°F (1.5°C). December signifies a gentle decline in Chatham Hills's average high-temperature, easing from a cool 53.8°F (12.1°C) in November to a chilly 45.5°F (7.5°C). Weather in December »

Frequently asked questions

What part of the year is the coldest?

Chatham Hills's temperature records reveal January as the coldest month, marked by average highs of 39.6°F (4.2°C) and lows of 28.4°F (-2°C).

What is the least humid month?

January, March, April and November, with an average relative humidity of 72%, are the least humid months.

How many days does it rain?

Throughout the year, there are 155.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

When does it snow?

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

When does it snow the most in Chatham Hills?

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 much does it snow?

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

What are the months with the lowest UV index?

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

What is the month with the least sunshine?

With an average of 5.1h of sunshine, February has the least sunshine of the year.

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?

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

When it does not snow?

In Chatham Hills, snow does not fall in May through October.

What are the months with the highest UV index?

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

When are the longest days?

The month with the longest days is June, with an average of 14h and 54min of daylight.

What is the hottest time of year?

Chatham Hills, Maryland, records the warmest temperatures in July, averaging a 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 wettest month?

The month with the most rainfall is August, when the rain falls for 13.9 days and typically aggregates up to 3.54" (90mm) of precipitation.

What is the driest month?

September is the month with the least rainfall in Chatham Hills. Rain falls for 11.8 days and accumulates 1.89" (48mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

Average temperature
Chatham Hills, MD

Average temperature - Chatham Hills, 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
Chatham Hills, MD

Average pressure - Chatham Hills, 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
Chatham Hills, MD

Average wind speed - Chatham Hills, 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
Chatham Hills, MD

Average humidity - Chatham Hills, 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
Chatham Hills, MD

Average rainfall - Chatham Hills, MD

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days
Chatham Hills, MD

Average rainfall days - Chatham Hills, 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
Chatham Hills, MD

Average snowfall - Chatham Hills, 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
Chatham Hills, MD

Average snowfall days - Chatham Hills, 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
Chatham Hills, MD

Average daylight / Average sunshine - Chatham Hills, 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 February (Average sunshine: 5h and 6min).

Average sunshine days
Chatham Hills, MD

Average sunshine days - Chatham Hills, 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
Chatham Hills, MD

Average UV index - Chatham Hills, 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, November and December (UV index 2).

Average visibility
Chatham Hills, MD

Average visibility - Chatham Hills, 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).

Chatham Hills, Maryland, USA

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