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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 Rosemary Hills, Maryland, is another cold winter month, with an average temperature varying between 39.7°F (4.3°C) and 27.1°F (-2.7°C). Rosemary Hills's temperature records reveal January as the coldest month, marked by average highs of 39.7°F (4.3°C) and lows of 27.1°F (-2.7°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Rosemary Hills, Maryland, with an average temperature varying between 43.9°F (6.6°C) and 29.8°F (-1.2°C). The shift into February records an average high-temperature of a frosty 43.9°F (6.6°C), subtly varied from January's 39.7°F (4.3°C). Weather in February »
Weather in March
March, the first month of the spring in Rosemary Hills, is a cool month, with an average temperature varying between 52.3°F (11.3°C) and 37°F (2.8°C). The onset of March brings a minor temperature shift, with the average high-temperature moving from a frosty 43.9°F (6.6°C) in February to a cool 52.3°F (11.3°C). Weather in March »
Weather in April
April in Rosemary Hills, Maryland, is an enjoyable spring month, with an average temperature fluctuating between 46.8°F (8.2°C) and 64.9°F (18.3°C). The rise of average high-temperatures is seen in April, with an increase from a cool 52.3°F (11.3°C) in March to a refreshing 64.9°F (18.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Rosemary Hills, Maryland, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 74.3°F (23.5°C). The start of May signals an increase in the average high-temperature, moving from an enjoyable 64.9°F (18.3°C) in April to a moderately hot 74.3°F (23.5°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Rosemary Hills, Maryland, with an average temperature fluctuating between 82.2°F (27.9°C) and 64.4°F (18°C). June's onset is marked by a subtle temperature increase, moving from a moderately hot 74.3°F (23.5°C) in May to a still warm 82.2°F (27.9°C). Weather in June »
Weather in July
July is a hot summer month in Rosemary Hills, Maryland, with an average temperature fluctuating between 69.6°F (20.9°C) and 87.4°F (30.8°C). Rosemary Hills's temperature records reveal July as the warmest month, marked by average highs of 87.4°F (30.8°C) and lows of 69.6°F (20.9°C). For July, the heat index is calculated to be a sweltering 98.6°F (37°C). Weather in July »
Weather in August
August, the last month of the summer in Rosemary Hills, is also a moderately hot month, with an average temperature varying between 68.2°F (20.1°C) and 85.6°F (29.8°C). In Rosemary Hills, August's average high-temperature stands at a moderately hot 85.6°F (29.8°C), closely related to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Rosemary Hills, Maryland, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 78.4°F (25.8°C). Rosemary Hills experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 85.6°F (29.8°C) in August to a still warm 78.4°F (25.8°C). Weather in September »
Weather in October
October, like September, in Rosemary Hills, Maryland, is another refreshing autumn month, with an average temperature fluctuating between 66.4°F (19.1°C) and 50.9°F (10.5°C). As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a warm 78.4°F (25.8°C) to an enjoyable 66.4°F (19.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Rosemary Hills, is another cool month, with an average temperature ranging between min 39.4°F (4.1°C) and max 53.6°F (12°C). The arrival of November corresponds with a temperature reduction, down from October's enjoyable 66.4°F (19.1°C) to a cool 53.6°F (12°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Rosemary Hills, Maryland, with an average temperature varying between 33.3°F (0.7°C) and 45.3°F (7.4°C). December reveals a small adjustment in temperature, transitioning from an average high of a cool 53.6°F (12°C) in November to a frosty 45.3°F (7.4°C). Weather in December »
Updated: Aug 29, 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?
Rosemary Hills's January weather reaches an average high of 39.7°F (4.3°C) and an average low of 27.1°F (-2.7°C), making it the coldest month.
What is the driest month?
January is the month with the least rainfall. Rain falls for 8.8 days and accumulates 1.89" (48mm) of precipitation.
How many days does it rain?
In Rosemary Hills, during the entire year, the rain falls for 154.8 days and collects up to 30.28" (769mm) of precipitation.
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 4.6 days and accumulates 2.87" (73mm) of snow.
How much does it snow?
Throughout the year, in Rosemary Hills, there are 15 snowfall days, and 9.17" (233mm) of snow is accumulated.
When is 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?
The month with the least sunshine is February, with an average of 4.9h 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?
May, October and December, with an average relative humidity of 75%, are most humid months.
When it does not snow?
In Rosemary Hills, snow does not fall in May through October.
When is the highest UV index in Rosemary Hills?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What is the warmest month?
Rosemary Hills records the warmest temperatures in July, averaging a high of 87.4°F (30.8°C) and a low of 69.6°F (20.9°C).
What is the least humid month?
July is the least humid month, with an average relative humidity of 69%.
What month has the most sunshine?
With an average of 10.6h of sunshine, July has the most sunshine of the year.
What is the wettest month?
August is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.86" (98mm) 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
Rosemary Hills, MD
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.7°F).
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure
Rosemary Hills, MD
- Average pressure in January:
30.11"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:
29.95"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:
30.04"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 (29.95"Hg).
Average wind speed
Rosemary Hills, MD
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7mph - Average wind speed in December:
7.1mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Rosemary Hills, MD
The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Rosemary Hills, MD
- Average rainfall in January:
1.89" - Average rainfall in February:
2.01" - Average rainfall in March:
2.28" - Average rainfall in April:
2.52" - Average rainfall in May:
2.87" - Average rainfall in June:
2.48"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days
Rosemary Hills, MD
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall
Rosemary Hills, MD
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Rosemary Hills, MD
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
3.1 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:
0.4 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Rosemary Hills, 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 0min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Rosemary Hills, MD
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
15 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
12 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).
Average UV index
Rosemary 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 cloud cover
Rosemary Hills, MD
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Rosemary Hills, MD
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Rosemary Hills, Maryland, USA
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