Expand
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 a wintry winter month in Stoney Brook, Maryland, with an average temperature varying between 39°F (3.9°C) and 26.2°F (-3.2°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 39°F (3.9°C) and a low of 26.2°F (-3.2°C). Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in Stoney Brook, Maryland, with an average temperature fluctuating between 28.8°F (-1.8°C) and 43.9°F (6.6°C). On the advent of February, Stoney Brook's average high-temperature exhibits a minor adjustment to a chilly 43.9°F (6.6°C) from January's 39°F (3.9°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Stoney Brook, Maryland, with an average temperature ranging between max 52°F (11.1°C) and min 36.1°F (2.3°C). In Stoney Brook, the onset of March comes with a modest high-temperature shift, transitioning from February's chilly 43.9°F (6.6°C) to a cool 52°F (11.1°C). Weather in March »
Weather in April
April is an enjoyable spring month in Stoney Brook, Maryland, with an average temperature varying between 46°F (7.8°C) and 64.2°F (17.9°C). Stoney Brook's weather shows a temperature rise with the arrival of April, moving from a fresh 52°F (11.1°C) in March to a comfortable 64.2°F (17.9°C). Weather in April »
Weather in May
May, the last month of the spring in Stoney Brook, is a moderately hot month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 55.8°F (13.2°C). In May, the meteorological conditions change with the average high-temperature moving from a refreshing 64.2°F (17.9°C) in April to a warm 73.9°F (23.3°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Stoney Brook, Maryland, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 81.7°F (27.6°C). Stoney Brook's transition into June is noticed by a slight rise in the average high-temperature, advancing from a warm 73.9°F (23.3°C) in May to a still moderately hot 81.7°F (27.6°C). Weather in June »
Weather in July
July in Stoney Brook, Maryland, is a hot summer month, with an average temperature ranging between min 68.7°F (20.4°C) and max 87.3°F (30.7°C). In Stoney Brook, the highest average temperatures are observed in July, with a high of 87.3°F (30.7°C) and a low of 68.7°F (20.4°C). July's average heat index is appraised at a sweltering 98.6°F (37°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Stoney Brook, Maryland, with an average temperature varying between 84.9°F (29.4°C) and 67.6°F (19.8°C). Stoney Brook transitions into August recording an average high-temperature of a warm 84.9°F (29.4°C), closely aligning with the preceding month's temperature. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Stoney Brook, Maryland, with an average temperature varying between 78.3°F (25.7°C) and 61°F (16.1°C). The arrival of September correlates with a minor temperature reduction, down from August's warm 84.9°F (29.4°C) to a still moderately hot 78.3°F (25.7°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Stoney Brook, Maryland, with an average temperature fluctuating between 50.2°F (10.1°C) and 65.8°F (18.8°C). With the beginning of October, the average high-temperature shows a decrease, transitioning from a warm 78.3°F (25.7°C) in September to a refreshing 65.8°F (18.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Stoney Brook, Maryland, with an average temperature ranging between max 53.4°F (11.9°C) and min 38.8°F (3.8°C). The onset of November results in a decrease in the average high-temperature, receding from a refreshing 65.8°F (18.8°C) in October to a fresh 53.4°F (11.9°C). Weather in November »
Weather in December
December, the first month of the winter in Stoney Brook, is still a chilly month, with an average temperature ranging between max 45.3°F (7.4°C) and min 32.9°F (0.5°C). December's arrival subtly correlates with a reduction in the average high-temperature, down from a fresh 53.4°F (11.9°C) in November to a chilly 45.3°F (7.4°C). Weather in December »
Updated: Aug 8, 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 is the coldest month?
The month of January sees the average lowest temperatures, reaching 39°F (3.9°C) at the peak and 26.2°F (-3.2°C) at the low.
What is the driest month?
January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.17" (55mm) of precipitation.
How many days does it rain?
Throughout the year, there are 161.3 rainfall days, and 33.19" (843mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
When does it snow the most?
The months with the most snowfall in Stoney Brook, Maryland, are January and March, with an average 3.03" (77mm) of accumulated snow.
How much does it snow?
Throughout the year, there are 17.1 snowfall days, and 10.2" (259mm) 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.
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?
The months with the highest humidity are May, October and December, with an average relative humidity of 76%.
When it does not snow?
In Stoney Brook, snow does not fall in May through October.
What is the month 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?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What month is the hottest?
July is the month when Stoney Brook experiences its warmest temperatures, averaging a high of 87.3°F (30.7°C) and a low of 68.7°F (20.4°C).
What is the least humid month in Stoney Brook?
With an average relative humidity of 70%, July is the least humid month.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.8h of sunshine.
What is the wettest month?
The month with the most rainfall is August, when the rain falls for 17.1 days and typically aggregates up to 4.13" (105mm) 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?
December has the least sunshine of the year, with an average of 4.9h of sunshine.
Average temperature
Stoney Brook, MD
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure
Stoney Brook, 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:
30.06"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
Stoney Brook, MD
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.9mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.6mph - 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 (5.1mph).
Average humidity
Stoney Brook, MD
The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Stoney Brook, MD
- Average rainfall in January:
2.17" - Average rainfall in February:
2.2" - Average rainfall in March:
2.44" - Average rainfall in April:
2.87" - Average rainfall in May:
3.23" - Average rainfall in June:
2.68"
- Average rainfall in July:
3.23" - Average rainfall in August:
4.13" - Average rainfall in September:
2.44" - Average rainfall in October:
2.6" - Average rainfall in November:
2.44" - Average rainfall in December:
2.76"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days
Stoney Brook, MD
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
17.5 days - Average rainfall days in August:
17.1 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Stoney Brook, MD
The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Stoney Brook, MD
- Average snowfall days in January:
5.1 days - Average snowfall days in February:
5.1 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.2 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:
2.9 days
The months with the highest number of snowfall days are January and February (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Stoney Brook, 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 1min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days
Stoney Brook, MD
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
14 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
11 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is November (19.5 days).
The months with the least sunshine days are May and July (11 days).
Average UV index
Stoney Brook, 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
Stoney Brook, MD
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Stoney Brook, 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).
Stoney Brook, Maryland, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location