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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, like December, in Arnold, Maryland, is a wintry winter month, with an average temperature varying between 39.6°F (4.2°C) and 28.4°F (-2°C). January, characterized by an average high temperature of 39.6°F (4.2°C) and a low temperature of 28.4°F (-2°C), is generally the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Arnold, Maryland, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 43.2°F (6.2°C). The advent of February brings an average high-temperature of a frosty 43.2°F (6.2°C), almost identical to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Arnold, Maryland, with an average temperature fluctuating between 37.8°F (3.2°C) and 50.7°F (10.4°C). March brings a slight rise in Arnold's 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 is a comfortable spring month in Arnold, Maryland, with an average temperature ranging between max 62.8°F (17.1°C) and min 47.5°F (8.6°C). April's onset is marked by a temperature increase, moving from a fresh 50.7°F (10.4°C) in March to an enjoyable 62.8°F (17.1°C). Weather in April »
Weather in May
May, the last month of the spring in Arnold, is an agreeable month, with an average temperature ranging between min 57.2°F (14°C) and max 72.1°F (22.3°C). Arnold's transition into May sees a rise in the average high-temperature, advancing from a refreshing 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 Arnold, is a warm month, with an average temperature fluctuating between 65.7°F (18.7°C) and 80.2°F (26.8°C). Observing a slight rise in June, the average high-temperature shifts from May's pleasant 72.1°F (22.3°C) to a moderately hot 80.2°F (26.8°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Arnold, Maryland, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 85.6°F (29.8°C). July, with an average high of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C), signifies the warmest month of the year. During July, the heat index is computed to be a very hot 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Arnold, Maryland, with an average temperature varying between 69.1°F (20.6°C) and 83.7°F (28.7°C). The advent of August presents an average high-temperature of a still warm 83.7°F (28.7°C), maintaining a close correlation with the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Arnold, Maryland, with an average temperature ranging between max 77.4°F (25.2°C) and min 63.3°F (17.4°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 83.7°F (28.7°C) to a still moderately hot 77.4°F (25.2°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Arnold, Maryland, with an average temperature ranging between min 52.9°F (11.6°C) and max 65.5°F (18.6°C). In the transition to October, Arnold observes a drop in the average high-temperature, moving from a moderately hot 77.4°F (25.2°C) in September to an enjoyable 65.5°F (18.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Arnold, Maryland, with an average temperature fluctuating between 53.8°F (12.1°C) and 41.4°F (5.2°C). As November commences, the average high-temperature shows a reduction, transitioning 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 also a frosty month in Arnold, Maryland, with an average temperature varying between 45.5°F (7.5°C) and 34.7°F (1.5°C). December's arrival subtly correlates with a reduction in the average high-temperature, down from a fresh 53.8°F (12.1°C) in November to a chilly 45.5°F (7.5°C). Weather in December »
Updated: Jul 31, 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 are the coldest months?
January, noted for its average high-temperature of 39.6°F (4.2°C) and an average low-temperature of 28.4°F (-2°C), is considered the coldest month.
What are the least humid months?
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 72%.
How much 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.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 4.4 days and accumulates 2.05" (52mm) of snow.
How much does it snow in Arnold?
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?
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Arnold?
The month with the least sunshine is February, 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, 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.
What are the months with 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?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What month is the hottest?
July stands out as Arnold's warmest month, with temperatures ranging 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 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?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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
Arnold, 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).
Arnold, Maryland, USA
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