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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 Johnsville, Maryland, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 37.6°F (3.1°C). January proves to be the coldest month, recording an average maximum temperature of 37.6°F (3.1°C) and a minimum temperature of 25°F (-3.9°C). Weather in January »
Weather in February
February, the last month of the winter in Johnsville, is also a wintry month, with temperature in the range of an average high of 41.4°F (5.2°C) and an average low of 27.1°F (-2.7°C). The start of February marks an average high-temperature of a still icy 41.4°F (5.2°C), hardly distinguishable from the conditions in January. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Johnsville, Maryland, with an average temperature varying between 50°F (10°C) and 34°F (1.1°C). In Johnsville, the onset of March comes with a modest high-temperature shift, transitioning from February's icy 41.4°F (5.2°C) to a cool 50°F (10°C). Weather in March »
Weather in April
April in Johnsville, Maryland, is an enjoyable spring month, with an average temperature ranging between min 43.7°F (6.5°C) and max 62.2°F (16.8°C). In Johnsville, the average high-temperature in April increases from a fresh 50°F (10°C) in March to a comfortable 62.2°F (16.8°C). Weather in April »
Weather in May
May, the last month of the spring in Johnsville, is an agreeable month, with an average temperature ranging between min 53.8°F (12.1°C) and max 71.8°F (22.1°C). With the arrival of May, the average high-temperature transitions from a comfortable 62.2°F (16.8°C) in April to an agreeable 71.8°F (22.1°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Johnsville, Maryland, with an average temperature fluctuating between 79.5°F (26.4°C) and 61.3°F (16.3°C). Johnsville in June experiences a slight uptick in the average high-temperature, adjusting from May's agreeable 71.8°F (22.1°C) to a moderately hot 79.5°F (26.4°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Johnsville, Maryland, with an average temperature fluctuating between 84.4°F (29.1°C) and 66.6°F (19.2°C). Johnsville's temperatures peak on average in July, reaching 84.4°F (29.1°C) at their highest and 66.6°F (19.2°C) at their lowest. July's mean heat index is appraised at a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Johnsville, is also a moderately hot month, with an average temperature ranging between min 64.8°F (18.2°C) and max 82.6°F (28.1°C). August experiences an average high-temperature of a still moderately hot 82.6°F (28.1°C), barely different from July's 84.4°F (29.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Johnsville, Maryland, with an average temperature ranging between max 75.9°F (24.4°C) and min 58.6°F (14.8°C). September brings a minor shift in the average high-temperature, adjusting from 82.6°F (28.1°C) in August to a still moderately hot 75.9°F (24.4°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Johnsville, Maryland, with an average temperature fluctuating between 48.2°F (9°C) and 64.2°F (17.9°C). October's onset brings a reduction in the average high-temperature, from a moderately hot 75.9°F (24.4°C) in September to a comfortable 64.2°F (17.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Johnsville, Maryland, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 52.2°F (11.2°C). The arrival of November signals a shift in temperature, down from an enjoyable 64.2°F (17.9°C) in October to a fresh 52.2°F (11.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Johnsville, Maryland, with an average temperature fluctuating between 43.2°F (6.2°C) and 31.3°F (-0.4°C). December implies a soft temperature shift, with average high-temperatures reducing from November's fresh 52.2°F (11.2°C) to a frosty 43.2°F (6.2°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Johnsville?
January, with an average high of 37.6°F (3.1°C) and a low of 25°F (-3.9°C), signifies the coldest month of the year in Johnsville, Maryland.
What are the least humid months in Johnsville?
January, April, July and November, with an average relative humidity of 75%, are the least humid months in Johnsville.
How many days does it rain in Johnsville?
In Johnsville, during the entire year, the rain falls for 130.3 days and collects up to 15.47" (393mm) of precipitation.
When does it snow in Johnsville?
January through April, November and December are months with snowfall.
What is the snowiest month in Johnsville?
The month with the most snowfall in Johnsville, Maryland, is January, when snow falls for 4.4 days and typically aggregates up to 1.34" (34mm) of snow.
How many days does it snow in Johnsville?
In Johnsville, Maryland, during the entire year, snow falls for 16 days and aggregates up to 4.13" (105mm) of snow.
What are the months with the lowest UV index in Johnsville?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Johnsville?
The month with the least rainfall is February, when the rain falls for 6.8 days and typically collects 0.79" (20mm) of precipitation.
What is the month with the least sunshine in Johnsville?
With an average of 4.7h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Johnsville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Johnsville, 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 in Johnsville?
With an average relative humidity of 80%, May is the most humid month in Johnsville, Maryland.
When it does not snow in Johnsville?
In Johnsville, snow does not fall in May through October.
When is the highest UV index in Johnsville?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Johnsville?
With an average of 14h and 54min of daylight, June has the longest days of the year in Johnsville, Maryland.
What is the warmest month in Johnsville?
July brings the highest temperatures, with an average high of 84.4°F (29.1°C) and an average low of 66.6°F (19.2°C).
What month has the most sunshine in Johnsville?
July has the most sunshine of the year in Johnsville, with an average of 10.5h of sunshine.
What is the wettest month in Johnsville?
The month with the most rainfall in Johnsville, Maryland, is August, when the rain falls for 15.1 days and typically aggregates up to 2.48" (63mm) of precipitation.
What is the month with the shortest days in Johnsville?
The month with the shortest days in Johnsville, Maryland, is December, with an average of 9h and 24min of daylight.
Average temperature
Johnsville, 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 (37.6°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Johnsville, 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:
30.06"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 (29.94"Hg).
Average wind speed
Johnsville, MD
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.5mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Johnsville, MD
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, April, July and November (75%).
Average rainfall
Johnsville, MD
- Average rainfall in January:
0.83" - Average rainfall in February:
0.79" - Average rainfall in March:
0.98" - Average rainfall in April:
1.18" - Average rainfall in May:
1.54" - Average rainfall in June:
1.42"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days
Johnsville, MD
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
11.9 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
9.1 days
The month with the highest number of rainy days is August (15.1 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall
Johnsville, MD
The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Johnsville, MD
- Average snowfall days in January:
4.4 days - Average snowfall days in February:
4.9 days - Average snowfall days in March:
3.4 days - Average snowfall days in April:
0.3 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:
2.5 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Johnsville, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - 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 0min - Average daylight in December:
9h and 2min
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 24min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 2min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Johnsville, MD
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
16.4 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
16.2 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
13.2 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
16.6 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
20.9 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is May (12.9 days).
Average UV index
Johnsville, 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, February, November and December (UV index 2).
Average cloud cover
Johnsville, MD
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Johnsville, 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).
Johnsville, Maryland, USA
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