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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Chartwell, Maryland, with an average temperature fluctuating between 28.4°F (-2°C) and 39.6°F (4.2°C). January, known for its average high temperature of 39.6°F (4.2°C) and an average low temperature of 28.4°F (-2°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Chartwell, is a frosty month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 43.2°F (6.2°C). Chartwell records a slight change with February's average high-temperatures adjusting to a frosty 43.2°F (6.2°C) from January's 39.6°F (4.2°C). Weather in February »
Weather in March
March, the first month of the spring in Chartwell, 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, the average high-temperature subtly transitions from a frosty 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 Chartwell, Maryland, is a refreshing 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
May, the last month of the spring in Chartwell, is an agreeable month, with an average temperature fluctuating between 57.2°F (14°C) and 72.1°F (22.3°C). The start of May brings a rise in the average high-temperature, moving from an enjoyable 62.8°F (17.1°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »
Weather in June
June, the first month of the summer in Chartwell, is a moderately hot month, with an average temperature ranging between max 80.2°F (26.8°C) and min 65.7°F (18.7°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up 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 another warm summer month in Chartwell, Maryland, with an average temperature fluctuating between 85.6°F (29.8°C) and 70.7°F (21.5°C). July is Chartwell's warmest month, registering average high temperatures of 85.6°F (29.8°C) and lows of 70.7°F (21.5°C). The average heat index in July is estimated at a torrid 95°F (35°C). Weather in July »
Weather in August
August, the last month of the summer in Chartwell, is also a moderately hot month, with an average temperature varying between 69.1°F (20.6°C) and 83.7°F (28.7°C). The onset of August notes an average high-temperature of a still moderately hot 83.7°F (28.7°C), subtly shifted from July's 85.6°F (29.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Chartwell, Maryland, with an average temperature ranging between max 77.4°F (25.2°C) and min 63.3°F (17.4°C). The average high-temperature shows a slight dip in September, from August's 83.7°F (28.7°C) to a still warm 77.4°F (25.2°C). Weather in September »
Weather in October
October, like September, in Chartwell, Maryland, is another comfortable autumn month, with an average temperature fluctuating between 65.5°F (18.6°C) and 52.9°F (11.6°C). The arrival of October corresponds with a shift in temperature, down from a moderately hot 77.4°F (25.2°C) in September to a refreshing 65.5°F (18.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Chartwell, is another cool 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). The beginning of November marks a decrease in the average high-temperature, transitioning from a comfortable 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 also a frosty month in Chartwell, Maryland, with an average temperature ranging between min 34.7°F (1.5°C) and max 45.5°F (7.5°C). As Chartwell enters December, the average high-temperature subtly lowers from the a cool 53.8°F (12.1°C) of November to a chilly 45.5°F (7.5°C). Weather in December »
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
In Chartwell, January is the month with the lowest recorded average temperatures, measuring a high of 39.6°F (4.2°C) and a low of 28.4°F (-2°C).
What are the least humid months?
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 in Chartwell?
Months with snowfall are January through April, November and December.
What is the snowiest month?
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 is the month 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?
February has the least sunshine of the year, with an average of 5.1h of sunshine.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Chartwell, 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?
May through October are months without snowfall in Chartwell.
What is the month with the highest UV index?
The months with the highest UV index in Chartwell are May through August, with an average maximum UV index of 6.
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?
The month of July, characterized by an average high of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C), is recognized as the warmest.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.9h of sunshine.
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?
The month with the least rainfall is September, when the rain falls for 11.8 days and typically collects 1.89" (48mm) of precipitation.
What is the month with the shortest days in Chartwell?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Chartwell, 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
Chartwell, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
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
Chartwell, MD
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.1mph - Average wind speed in May:
7.5mph - Average wind speed in June:
7mph
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
Chartwell, 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
Chartwell, MD
- Average rainfall in January:
2.01" - Average rainfall in February:
2.36" - Average rainfall in March:
2.48" - Average rainfall in April:
2.6" - Average rainfall in May:
2.87" - Average rainfall in June:
2.6"
- Average rainfall in July:
3.23" - Average rainfall in August:
3.54" - Average rainfall in September:
1.89" - Average rainfall in October:
2.64" - Average rainfall in November:
2.17" - Average rainfall in December:
2.83"
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
Chartwell, MD
- Average rainfall days in January:
9.9 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
11.4 days
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
Chartwell, 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
Chartwell, MD
- Average snowfall days in January:
4.4 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
2.4 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.4 days
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
Chartwell, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
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).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
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
Chartwell, MD
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
16.9 days
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
Chartwell, 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 cloud cover
Chartwell, MD
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Chartwell, 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).
Chartwell, Maryland, USA
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