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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 Jarrettsville, Maryland, is a wintry winter month, with an average temperature varying between 37.6°F (3.1°C) and 25.3°F (-3.7°C). Temperature readings reach their annual highs in January, averaging 37.6°F (3.1°C) and a minimum average of 25.3°F (-3.7°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Jarrettsville, Maryland, with an average temperature varying between 41.5°F (5.3°C) and 27.5°F (-2.5°C). The introduction of February notes a subtle temperature variation to a still icy 41.5°F (5.3°C) from January's 37.6°F (3.1°C). Weather in February »
Weather in March
March, the first month of the spring in Jarrettsville, is a chilly month, with an average temperature varying between 49.6°F (9.8°C) and 34.7°F (1.5°C). As Jarrettsville transitions into March, a marginal rise in the average high-temperature is observed, moving from a wintry 41.5°F (5.3°C) in February to a frosty 49.6°F (9.8°C). Weather in March »
Weather in April
April is a comfortable spring month in Jarrettsville, Maryland, with an average temperature fluctuating between 44.8°F (7.1°C) and 61.9°F (16.6°C). April's arrival coincides with a temperature rise, moving from March's frosty 49.6°F (9.8°C) to a refreshing 61.9°F (16.6°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Jarrettsville, Maryland, with an average temperature fluctuating between 54.5°F (12.5°C) and 71.4°F (21.9°C). May's arrival coincides with a rise in the average high-temperature, moving from April's refreshing 61.9°F (16.6°C) to a pleasant 71.4°F (21.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Jarrettsville, Maryland, with an average temperature varying between 62.1°F (16.7°C) and 79.3°F (26.3°C). The shift into June is marked by a modest rise in the average high-temperature, moving from May's agreeable 71.4°F (21.9°C) to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, like June, in Jarrettsville, Maryland, is another warm summer month, with an average temperature fluctuating between 67.6°F (19.8°C) and 84.6°F (29.2°C). Jarrettsville reaches its highest average temperatures in July, measuring 84.6°F (29.2°C) at the peak and 67.6°F (19.8°C) at the lowest. In July, the average heat index is appraised at a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Jarrettsville, Maryland, with an average temperature ranging between min 65.7°F (18.7°C) and max 82.2°F (27.9°C). With the onset of August, the average high-temperature registers at a still moderately hot 82.2°F (27.9°C), subtly different from July's 84.6°F (29.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Jarrettsville, Maryland, with an average temperature fluctuating between 76.1°F (24.5°C) and 59.4°F (15.2°C). The start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 82.2°F (27.9°C) in August to a still moderately hot 76.1°F (24.5°C). Weather in September »
Weather in October
October, like September, in Jarrettsville, Maryland, is another refreshing autumn month, with an average temperature ranging between max 64.8°F (18.2°C) and min 49.8°F (9.9°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a warm 76.1°F (24.5°C) in September to a comfortable 64.8°F (18.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Jarrettsville, Maryland, with temperature in the range of an average high of 52.9°F (11.6°C) and an average low of 38.3°F (3.5°C). In Jarrettsville, entering November brings a temperature decrement, reducing from October's refreshing 64.8°F (18.2°C) to a cool 52.9°F (11.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Jarrettsville, Maryland, with an average temperature varying between 43.7°F (6.5°C) and 32.2°F (0.1°C). A decrease in the average high-temperature is observed during December, shifting from a fresh 52.9°F (11.6°C) in November to a chilly 43.7°F (6.5°C). Weather in December »
Updated: Jun 22, 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 time of the year is the coldest?
The coldest period is January, when temperatures fluctuate between an average high of 37.6°F (3.1°C) and a low of 25.3°F (-3.7°C).
How much does it rain?
In Jarrettsville, Maryland, during the entire year, the rain falls for 155.7 days and collects up to 32.64" (829mm) of precipitation.
When does it snow?
January through May, November and December are months with snowfall.
How many days does it snow?
In Jarrettsville, Maryland, during the entire year, snow falls for 19.9 days and aggregates up to 9.72" (247mm) of snow.
When is the lowest UV index?
The months with the lowest UV index in Jarrettsville are January, February, November and December, with an average maximum UV index of 2.
What is the driest month?
February is the month with the least rainfall. Rain falls for 9.1 days and accumulates 2.09" (53mm) of precipitation.
What is the month with the least sunshine?
With an average of 4.8h of sunshine, February has the least sunshine of the year.
When does it snow the most?
The month with the most snowfall is March, when snow falls for 4.2 days and typically aggregates up to 2.87" (73mm) of snow.
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 least humid month in Jarrettsville?
April is the least humid month, with an average relative humidity of 74%.
What is the most humid month?
The most humid month is May, with an average relative humidity of 80%.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Jarrettsville.
When it does not snow?
In Jarrettsville, snow does not fall in June through October.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What is the warmest month in Jarrettsville?
Jarrettsville's July weather, marked by an average high temperature of 84.6°F (29.2°C) and an average low temperature of 67.6°F (19.8°C), is the warmest in the year.
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 rainiest month?
August is the month with the most rainfall. Rain falls for 15.9 days and accumulates 4.09" (104mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Jarrettsville, 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 (37.6°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure
Jarrettsville, 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
Jarrettsville, MD
- Average wind speed in January:
8.9mph - Average wind speed in February:
9mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Jarrettsville, MD
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Jarrettsville, MD
- Average rainfall in January:
2.17" - Average rainfall in February:
2.09" - Average rainfall in March:
2.44" - Average rainfall in April:
2.48" - Average rainfall in May:
2.99" - Average rainfall in June:
2.68"
- Average rainfall in July:
3.58" - Average rainfall in August:
4.09" - Average rainfall in September:
2.32" - 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 (4.09").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days
Jarrettsville, MD
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Jarrettsville, MD
The month with the highest snowfall is March (2.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Jarrettsville, MD
- Average snowfall days in January:
5.6 days - Average snowfall days in February:
5.6 days - Average snowfall days in March:
4.2 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.2 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:
0.1 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
3.4 days
The months with the highest number of snowfall days are January and February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Jarrettsville, MD
- Average daylight in January:
9h and 4min - 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 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 2min - 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 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Jarrettsville, MD
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
Jarrettsville, 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
Jarrettsville, MD
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Jarrettsville, 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).
Jarrettsville, Maryland, USA
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