Climate and monthly weather forecastMaryville, TN
Climate and monthly weather forecast
The climate of Maryville
The city of Maryville, Tennessee in the USA is characterized by a humid subtropical climate, distinguished as Cfa in the Köppen climate classification. It is a zone defined by no dry season, with rich rainfall distributed evenly throughout the year.The climate analysis reveals a predictable yearly cycle in air temperature, humidity, and other parameters. Air temperature typically ranges from 29.5°F (-1.4°C) in the coldest month to a high of 87.6°F (30.9°C) in the hottest month. Again, there is a gentle fluctuation in humidity from 72% to 79%. Rainfall spans from 0.94" (24mm) to 2.2" (56mm) each month, with a slightly more substantial occurrence during the summer months. Rainfall frequency ranges between 8.7 days and 16.3 days per month, with summer recording the highest values. The wind speed sits between 3.6mph (5.8km/h) and 5.9mph (9.5km/h), demonstrating mild wind conditions that pervade throughout the year.
Uniquely notable is the snowfall, with a peak snowfall of 0.98" (25mm) in February and no snowfall from May to September. Humidity tends to peak during the winter months with relatively moderate values throughout the rest of the year. The brightest month comes in June with 14.6 hours of daylight, drawing a stark contrast from the darkest month, which experiences just 9.8 daylight hours.
The best time to visit Maryville
To fully enjoy the weather and outdoor activities in Maryville, it's wise to visit between May and September. During this period, the weather exhibits warmth with a high temperature between 77.5°F (25.3°C) and 87.6°F (30.9°C). Rainfall remains moderate with no snowfall recorded, making outdoor activities enjoyable. Furthermore, the daylight hours are ample, stretching from 14.1 hours to 14.6 hours, with substantial sunshine duration from 10.2 hours to 10.8 hours. Notably, the UV index reads between 6 and 5, meaning adequate sun protection is advised.The worst time to visit Maryville
January and February can be considered unfavorable for a visit to Maryville. These months experience the coldest temperatures, falling between 29.5°F (-1.4°C) and 33.4°F (0.8°C). Additionally, this period sees an average snowfall of 0.87" (22mm) and 0.98" (25mm) respectively. The humidity levels are significantly higher during these months, hitting around 76% and 78%, which makes for rather damp weather conditions. The amount of daylight is also relatively low with January having the shortest daylight hour of 10.1, and sunshine hours are just above half of that duration.Spring weather in Maryville
Spring, which runs from March to May, brings about a pleasant change in Maryville. Temperatures gradually rise from 57.7°F (14.3°C) in March to 77.5°F (25.3°C) by May. Rainfall lies between 1.46" (37mm) and 1.38" (35mm), with rainfall days occurring between 13.6 days and 13.9 days a month. Daylight hours also gradually increase from 12 hours in March to 14.1 hours in May. Meanwhile, wind speeds decrease slightly from 5.5mph (8.9km/h) to 4.8mph (7.7km/h) during this season.Summer weather in Maryville
Summer in Maryville, from June to August, is characterized by high temperatures ranging from 84.6°F (29.2°C) to 87.6°F (30.9°C). This also marks the peak period for daylight hours with the longest day stretching to 14.6 hours in June. Rainfall increases slightly during this period, with July reaching the annual peak at 2.2" (56mm). However, the weather remains warm and comfortable due to the relative humidity hovering between 74% and 73%.Autumn weather in Maryville
Autumn in Maryville, running from September to November, sees temperatures descending from 81.1°F (27.3°C) in September to 57.2°F (14°C) in November. Rainfall during this period closely resembles spring values, with September witnessing the least rainfall at 0.94" (24mm) in the year. The amount of daylight shrinks from 12.4 hours in September to 10.3 hours in November, signalling the onset of shorter days.Winter weather in Maryville
Winters, from December to February, are chillier in Maryville with temperatures falling to a low of 29.5°F (-1.4°C) in January. December also records the maximum relative humidity of 79%. Snowfall is recorded at 0.87" (22mm) in January and 0.98" (25mm) in February.The daylight hours are the least during this season, ranging from 10.1 hours in December to 9.8 hours in February. Despite the chillier conditions, winters offer beautifully clear views with visibility up to 6 miles, prime for winter photography.
Weather in January
Despite being one of Tennessee’s colder months, January in Maryville does show some milder days. The weather can range from moderately chilly to a deep freeze. Precipitations are common during the first month of the year. January has an average of 1.3" (33mm) of rainfall and record low temperatures that drop to 29.5°F (-1.4°C). Weather in January »Weather in February
February in Maryville is known to have a slight increase in the average high temperatures as compared to January. This month also observes a dip in overall snowfall, making way for more rainfall. There is a noticeable increase in daylight hours, though the overcast conditions still prevail. Weather in February »Weather in March
March marks the transition from winter to spring in Maryville. The somewhat warmer days and longer daylight hours reflect this change. The city experiences less snowfall in this month, indicating the end of the wintry weather. March sees a significantly low snowfall reaching only 0.47" (12mm) creating a simultaneous increase in the amount of rain. Weather in March »Weather in April
Despite a considerable increase in the humidity levels, April in Maryville is appreciated for its rising temperatures. The city observes a major upsurge in the daily sunshine hours, providing the residents with comfortable warmth. Weather in April »Weather in May
May greets Maryville with a substantially warmer temperature range, marking the beginnings of the summer season. The days become longer, and the city receives increased levels of sunshine. Heatwaves can occasionally hit the town, however, the pleasant weather largely remains. Weather in May »Weather in June
June marks the official beginning of summer in Maryville. The long days offer considerably high UV index. With increased sunshine hours, people can enjoy the outdoors to the fullest. A high of 84.6°F (29.2°C) turns out to be the average maximum temperature for the sunny month of June. Weather in June »Weather in July
July is the peak of summer in Maryville and can bring soaring temperatures. The high temperatures and relative humidity make it the warmest month of the year in Maryville. Residents can experience the ultimate warmth of the season, with temperatures occasionally rising above average. Weather in July »Weather in August
August is the last summer month in Maryville and carries with it the summer heat. Despite the incoming fall, the city continues to experience longer days and stays warm. The winds blow a bit more gently, and the rainfall tends to increase slightly compared to July. Weather in August »Weather in September
September brings a delightful change to the weather in Maryville. Commencing the fall season, it brings shorter days along with cool and comfortable temperatures. It marks a clear shift in the overall weather pattern of the city. Weather in September »Weather in October
October sees swift changes in the weather. The days become noticeably shorter as winter approaches. The autumn in full swing, October is full of color. Temperatures dip to an average low of 48.4°F (9.1°C), presenting a stark difference from the summer months. Weather in October »Weather in November
November signifies the true arrival of winter in Maryville. As temperatures continue to fall, snowfall makes its first appearance after a long break. Although November mornings are chilly, the afternoons tend to be rather sunny with clear skies. Weather in November »Weather in December
December is Maryville’s coldest month and is marked by short days and long nights. Snow enthusiasts can expect an increased frequency of snowfall as winter hits its peak in this month. There is a rise in the overall cloud percentage which brings much-awaited snow showers. Weather in December »Updated: Jul 28, 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
Maryville, Tennessee, witnesses the coldest weather in January, with temperatures averaging a high of 44.8°F (7.1°C) and a low of 29.5°F (-1.4°C).
In Maryville, Tennessee, during the entire year, the rain falls for 148.2 days and collects up to 18.23" (463mm) of precipitation.
January through March, October through December are months with snowfall.
Throughout the year, there are 18.9 snowfall days, and 3.58" (91mm) of snow is accumulated.
With an average of 5.1h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.
The month with the most snowfall in Maryville is February, when snow falls for 5.1 days and typically aggregates up to 0.98" (25mm) of snow.
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.
In Maryville, snow does not fall in April through September.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
The month with the longest days is June, with an average of 14h and 30min of daylight.
With an average of 10.8h of sunshine, June has the most sunshine of the year.
July is the month when Maryville experiences its warmest temperatures, averaging a high of 87.6°F (30.9°C) and a low of 65.5°F (18.6°C).
The month with the most rainfall is July, when the rain falls for 16.3 days and typically aggregates up to 2.2" (56mm) of precipitation.
The least humid month is August, with an average relative humidity of 72%.
September is the month with the least rainfall. Rain falls for 10.6 days and accumulates 0.94" (24mm) of precipitation.
December is the most humid month, with an average relative humidity of 79%.
The month with the shortest days is December, with an average of 9h and 48min of daylight.
Average temperature
Maryville, TN
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure
Maryville, TN
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
Maryville, TN
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.7mph - Average wind speed in March:
5.5mph - Average wind speed in April:
5.9mph - Average wind speed in May:
4.8mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
3.9mph - Average wind speed in August:
3.6mph - Average wind speed in September:
3.8mph - Average wind speed in October:
4.5mph - Average wind speed in November:
4.8mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity
Maryville, TN
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall
Maryville, TN
- Average rainfall in January:
1.3" - Average rainfall in February:
2.01" - Average rainfall in March:
1.46" - Average rainfall in April:
1.65" - Average rainfall in May:
1.38" - Average rainfall in June:
1.85"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days
Maryville, TN
- Average rainfall days in January:
11.1 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
11.1 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall
Maryville, TN
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days
Maryville, TN
- Average snowfall days in January:
5.4 days - Average snowfall days in February:
5.1 days - Average snowfall days in March:
2.9 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:
0.3 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
3.6 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Maryville, TN
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
5h and 54min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 30min - Average sunshine in May:
10h and 12min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 42min - Average sunshine in October:
7h and 12min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days
Maryville, TN
- Average sunshine days in January:
16 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
17 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).
Average UV index
Maryville, TN
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 and December (UV index 2).
Average cloud cover
Maryville, TN
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility
Maryville, TN
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
