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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 a wintry winter month in Preston, Maryland, with an average temperature varying between 41.2°F (5.1°C) and 29.3°F (-1.5°C). Preston reaches its lowest average temperatures in January, measuring 41.2°F (5.1°C) at the peak and 29.3°F (-1.5°C) at the lowest. Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Preston, Maryland, with an average temperature fluctuating between 44.2°F (6.8°C) and 32°F (0°C). February's arrival registers an average high-temperature of a chilly 44.2°F (6.8°C), closely aligning with the temperature of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Preston, is a fresh month, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 37.9°F (3.3°C). The transition from February to March brings a subtle temperature rise, with average high-temperatures increasing from a frosty 44.2°F (6.8°C) to a fresh 51.1°F (10.6°C). Weather in March »
Weather in April
April is a refreshing spring month in Preston, Maryland, with an average temperature ranging between max 62.6°F (17°C) and min 47.7°F (8.7°C). April brings a temperature change, with average high-temperatures moving from March's cool 51.1°F (10.6°C) to a refreshing 62.6°F (17°C). Weather in April »
Weather in May
May, the last month of the spring in Preston, is a pleasant month, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 56.8°F (13.8°C). Preston in May sees a temperature change, with average high-temperatures moving from an enjoyable 62.6°F (17°C) in April to an agreeable 71.6°F (22°C). Weather in May »
Weather in June
June, the first month of the summer in Preston, is a moderately hot month, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 64.9°F (18.3°C). As May gives way to June, the average high-temperature displays a slight ascent, adjusting from a pleasant 71.6°F (22°C) to a moderately hot 79.5°F (26.4°C). Weather in June »
Weather in July
July, like June, in Preston, Maryland, is a moderately hot summer month, with an average temperature varying between 84.6°F (29.2°C) and 70.3°F (21.3°C). July stands out as Preston's warmest month, with an average high-temperature of 84.6°F (29.2°C) and a low-temperature of 70.3°F (21.3°C). The heat index value for July is computed to be a torrid 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Preston, Maryland, with an average temperature varying between 82.9°F (28.3°C) and 68.4°F (20.2°C). Shifting into August, Preston records an average high-temperature of a still moderately hot 82.9°F (28.3°C), presenting minor fluctuations compared to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Preston, Maryland, with an average temperature fluctuating between 63.1°F (17.3°C) and 77.4°F (25.2°C). The start of September comes with a small reduction in the average high-temperature, subtly receding from 82.9°F (28.3°C) in August to a still warm 77.4°F (25.2°C). Weather in September »
Weather in October
October, like September, in Preston, Maryland, is another enjoyable autumn month, with an average temperature fluctuating between 53.6°F (12°C) and 66.9°F (19.4°C). In October, the average high-temperature decreases from a warm 77.4°F (25.2°C) in September to a comfortable 66.9°F (19.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Preston, Maryland, with an average temperature fluctuating between 42.3°F (5.7°C) and 55°F (12.8°C). The commencement of November indicates a shift in the average high-temperature, receding from October's comfortable 66.9°F (19.4°C) to a cool 55°F (12.8°C). Weather in November »
Weather in December
December, the first month of the winter in Preston, is still a chilly month, with an average temperature fluctuating between 47.1°F (8.4°C) and 36.1°F (2.3°C). In Preston, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's fresh 55°F (12.8°C) to a frosty 47.1°F (8.4°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 month is the coldest?
In Preston, January is the month with the lowest recorded average temperatures, measuring a high of 41.2°F (5.1°C) and a low of 29.3°F (-1.5°C).
What are the least humid months?
The months with the lowest humidity in Preston, Maryland, are January, March and November, with an average relative humidity of 74%.
What is the driest month?
January and September are months with the least rain when the rain falls for 7.9 days and typically aggregates up to 0.94" (24mm) of rain.
How many days does it rain?
In Preston, during the entire year, the rain falls for 135.7 days and collects up to 16.34" (415mm) of precipitation.
When does it snow?
January through March, May, November and December are months with snowfall.
When does it snow the most?
The month with the most snowfall in Preston is January, when snow falls for 3 days and typically aggregates up to 1.02" (26mm) of snow.
How much does it snow?
Throughout the year, there are 9.5 snowfall days, and 3.35" (85mm) of snow is accumulated.
When is the lowest UV index?
The months with the lowest UV index in Preston are January, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine?
With an average of 5.2h 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.
When it does not snow?
In Preston, snow does not fall in April, June through October.
What is the most humid month?
The months with the highest humidity are May, August and September, with an average relative humidity of 79%.
When is 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 48min of daylight, June has the longest days of the year.
What is the warmest month?
July is the warmest month, with the temperature often reaching an average high of 84.6°F (29.2°C) and an average low of 70.3°F (21.3°C).
What is the wettest month?
The months with the most rainfall are July and August, with an average 2.01" (51mm) of precipitation.
What month has the most sunshine?
July has the most sunshine of the year in Preston, with an average of 10.9h of sunshine.
What is the month with the shortest days?
The month with the shortest days in Preston is December, with an average of 9h and 30min of daylight.
Average temperature
Preston, MD
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (41.2°F).
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure
Preston, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Preston, MD
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.5mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Preston, MD
The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall
Preston, MD
- Average rainfall in January:
0.94" - Average rainfall in February:
1.1" - Average rainfall in March:
1.26" - Average rainfall in April:
1.1" - Average rainfall in May:
1.34" - Average rainfall in June:
1.81"
The wettest months (with the highest rainfall) are July and August (2.01").
The driest months (with the least rainfall) are January and September (0.94").
Average rainfall days
Preston, MD
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
8 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
15 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is November (7.2 days).
Average snowfall
Preston, MD
The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days
Preston, MD
- Average snowfall days in January:
3 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0.1 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:
0.3 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Preston, 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 1min - 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 48min).
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:
9h and 1min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 2min
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 12min).
Average sunshine days
Preston, MD
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
16.9 days - Average sunshine days in March:
16.4 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
21 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (11.5 days).
Average UV index
Preston, 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
Preston, MD
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Preston, 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).
Preston, Maryland, USA
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