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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 sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, in Chester, Maryland, is another cold winter month, with an average temperature fluctuating between 40.1°F (4.5°C) and 29.5°F (-1.4°C). In Chester, the lowest temperatures are generally noted in January, averaging a high of 40.1°F (4.5°C) and a low of 29.5°F (-1.4°C). Weather in January »
Weather in February
February, the last month of the winter in Chester, is a frosty month, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 43.3°F (6.3°C). February brings an average high-temperature of a chilly 43.3°F (6.3°C), showing a slight difference from January's 40.1°F (4.5°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Chester, Maryland, with an average temperature fluctuating between 50.4°F (10.2°C) and 37.8°F (3.2°C). In Chester, the average high-temperature in March slightly increases from a frosty 43.3°F (6.3°C) in February to a fresh 50.4°F (10.2°C). Weather in March »
Weather in April
April is a refreshing spring month in Chester, Maryland, with an average temperature varying between 48°F (8.9°C) and 61.5°F (16.4°C). Chester sees an increase in the average high-temperature with the arrival of April, moving from March's fresh 50.4°F (10.2°C) to a refreshing 61.5°F (16.4°C). Weather in April »
Weather in May
May, the last month of the spring in Chester, is a pleasant month, with an average temperature varying between 57.6°F (14.2°C) and 70.9°F (21.6°C). May marks a rise in the average high-temperature, moving from April's enjoyable 61.5°F (16.4°C) to a pleasant 70.9°F (21.6°C). Weather in May »
Weather in June
June, the first month of the summer in Chester, is a moderately hot month, with an average temperature fluctuating between 66°F (18.9°C) and 79.3°F (26.3°C). As June sets, the average high-temperature shows a slight increase, moving up from a pleasant 70.9°F (21.6°C) in May to a warm 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Chester, Maryland, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 84.4°F (29.1°C). Chester reaches its highest average temperatures in July, measuring 84.4°F (29.1°C) at the peak and 71.2°F (21.8°C) at the lowest. The heat index for July is calculated to be a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Chester, Maryland, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 69.6°F (20.9°C). The commencement of August records an average high-temperature of a still warm 82.6°F (28.1°C), barely varying from July's 84.4°F (29.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Chester, Maryland, with an average temperature varying between 63.5°F (17.5°C) and 77.4°F (25.2°C). The start of September marks an average high-temperature of a still moderately hot 77.4°F (25.2°C), hardly distinguishable from the conditions in August. Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Chester, Maryland, with an average temperature fluctuating between 54.3°F (12.4°C) and 66°F (18.9°C). Chester in October demonstrates a small temperature transition, adjusting from an average high of a moderately hot 77.4°F (25.2°C) in September to a comfortable 66°F (18.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Chester, is another cool month, with an average temperature varying between 42.8°F (6°C) and 54.5°F (12.5°C). The onset of November is marked by a decrease in temperature, transitioning from a refreshing 66°F (18.9°C) in October to a cool 54.5°F (12.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Chester, Maryland, with an average temperature fluctuating between 36.3°F (2.4°C) and 46.2°F (7.9°C). December brings a slight decrease in temperature, down from a cool 54.5°F (12.5°C) in November to a chilly 46.2°F (7.9°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 is the coldest month?
In Chester, January is known for its average lowest temperatures, reaching a high of 40.1°F (4.5°C) and a low of 29.5°F (-1.4°C).
What is the least humid month?
The months with the lowest humidity are January and November, with an average relative humidity of 73%.
How many days does it rain?
Throughout the year, in Chester, Maryland, there are 159 rainfall days, and 32.36" (822mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall.
When does it snow the most in Chester?
January is the month with the most snowfall in Chester. Snow falls for 4.2 days and accumulates 1.42" (36mm) of snow.
How many days does it snow?
Throughout the year, there are 11.4 snowfall days, and 4.13" (105mm) of snow is accumulated.
What are the months with the lowest UV index?
January and December, with an average maximum UV index of 2, are months with the lowest UV index.
When is the ocean coldest?
February is the month with the coldest seawater, with an average ocean temperature of 45.1°F (7.3°C).
What is the month with the least sunshine?
The month with the least sunshine in Chester is February, with an average of 5h 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 is the most humid month, with an average relative humidity of 79%.
When it does not snow?
In Chester, snow does not fall in May through October.
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 in Chester?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What month is the hottest?
July, on average, is the warmest month in Chester, Maryland, registering a high temperature of 84.4°F (29.1°C) and a low of 71.2°F (21.8°C).
What is the rainiest month in Chester?
The month with the most rainfall in Chester, Maryland, is July, when the rain falls for 16.8 days and typically aggregates up to 3.31" (84mm) of precipitation.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.9h of sunshine.
What month is the ocean warmest?
The month with the warmest seawater is August, with an average ocean temperature of 77.7°F (25.4°C).
What is the driest month?
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.89" (48mm) 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.
Average temperature
Chester, MD
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.1°F).
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure
Chester, 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:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"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:
30.13"Hg - Average pressure in December:
30.11"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
Chester, MD
- Average wind speed in January:
10mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.1mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.4mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.2mph
The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity
Chester, MD
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall
Chester, MD
- Average rainfall in January:
2.05" - Average rainfall in February:
2.4" - Average rainfall in March:
2.6" - Average rainfall in April:
2.76" - Average rainfall in May:
2.91" - Average rainfall in June:
3.19"
- Average rainfall in July:
3.31" - Average rainfall in August:
3.19" - Average rainfall in September:
1.89" - Average rainfall in October:
3.11" - Average rainfall in November:
2.05" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Chester, MD
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
10.9 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
14 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Chester, MD
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Chester, MD
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
3 days - Average snowfall days in March:
2.1 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:
0.3 days - Average snowfall days in December:
1.7 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Chester, MD
The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).
Average daylight / Average sunshine
Chester, 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 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 0min - 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 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 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 0min).
Average sunshine days
Chester, MD
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
11.1 days - Average sunshine days in June:
12.6 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
17.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).
Average UV index
Chester, 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 and December (UV index 2).
Average cloud cover
Chester, MD
The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Chester, 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).