Climate and monthly weather forecastSummitville, TN
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Summitville, Tennessee, with an average temperature varying between 30.7°F (-0.7°C) and 45.1°F (7.3°C). With an average high-temperature of 45.1°F (7.3°C) and an average low-temperature of 30.7°F (-0.7°C), January is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a fresh month in Summitville, Tennessee, with an average temperature varying between 50.2°F (10.1°C) and 34.9°F (1.6°C). Summitville's February average high-temperature settles at a cool 50.2°F (10.1°C), showing a near match with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a mild month in Summitville, Tennessee, with an average temperature fluctuating between 57.7°F (14.3°C) and 41°F (5°C). March signals a minor shift in the average high-temperature, moving from February's cool 50.2°F (10.1°C) to a mild 57.7°F (14.3°C). Weather in March »Weather in April
April in Summitville, Tennessee, is an agreeable spring month, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 68.4°F (20.2°C). With the onset of April, Summitville experiences a temperature shift, with the average high-temperature moving from a refreshing 57.7°F (14.3°C) in March to an agreeable 68.4°F (20.2°C). Weather in April »Weather in May
May, the last month of the spring in Summitville, is a warm month, with an average temperature ranging between max 76.1°F (24.5°C) and min 57.6°F (14.2°C). Summitville in May experiences a slight uptick in the average high-temperature, adjusting from April's pleasant 68.4°F (20.2°C) to a warm 76.1°F (24.5°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Summitville, Tennessee, with an average temperature ranging between min 64.2°F (17.9°C) and max 84.2°F (29°C). With the onset of June, Summitville's average high-temperature experiences a slight rise, moving from May's 76.1°F (24.5°C) to a still warm 84.2°F (29°C). Weather in June »Weather in July
July is a tropical summer month in Summitville, Tennessee, with an average temperature varying between 86.4°F (30.2°C) and 67.3°F (19.6°C). July is Summitville's warmest month, registering average high temperatures of 86.4°F (30.2°C) and lows of 67.3°F (19.6°C). For most parts of July, the heat index is computed to be a sweltering 100.4°F (38°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Summitville, Tennessee, with an average temperature ranging between min 66.2°F (19°C) and max 85.6°F (29.8°C). The shift into August finds Summitville at an average high-temperature of a warm 85.6°F (29.8°C), closely comparable to July's conditions. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Summitville, Tennessee, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 61°F (16.1°C). September's onset records an average high-temperature of a still moderately hot 80.6°F (27°C), a near match to August's 85.6°F (29.8°C). Weather in September »Weather in October
October, like September, is another pleasant autumn month in Summitville, Tennessee, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 69.3°F (20.7°C). With the onset of October, Summitville's average high-temperature adjusts, receding from September's moderately hot 80.6°F (27°C) to a pleasant 69.3°F (20.7°C). Weather in October »Weather in November
November, the last month of the autumn in Summitville, is another refreshing month, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 40.3°F (4.6°C). In November, the average high-temperature decreases from an agreeable 69.3°F (20.7°C) in October to a refreshing 56.8°F (13.8°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Summitville, Tennessee, with an average temperature ranging between max 49.3°F (9.6°C) and min 36°F (2.2°C). The shift from November to December coincides with a small decrease in the average high-temperature, down to a frosty 49.3°F (9.6°C) from a mild 56.8°F (13.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Summitville, TN
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.1°F).
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure
Summitville, TN
- Average pressure in January:
30.17"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:
30.01"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
Summitville, TN
- Average wind speed in January:
7.6mph - Average wind speed in February:
8.1mph - Average wind speed in March:
7.9mph - Average wind speed in April:
7.7mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
4.6mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.4mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity
Summitville, TN
The months with the highest relative humidity are March and December (80%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall
Summitville, TN
- Average rainfall in January:
3.46" - Average rainfall in February:
4.69" - Average rainfall in March:
3.23" - Average rainfall in April:
4.09" - Average rainfall in May:
3.7" - Average rainfall in June:
3.5"
- Average rainfall in July:
4.72" - Average rainfall in August:
3.98" - Average rainfall in September:
2.28" - Average rainfall in October:
2.91" - Average rainfall in November:
2.76" - Average rainfall in December:
3.86"
The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days
Summitville, TN
- Average rainfall days in January:
13.3 days - Average rainfall days in February:
13.8 days - Average rainfall days in March:
15.9 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
21 days - Average rainfall days in August:
18.7 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
13.4 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (10.3 days).
Average snowfall
Summitville, TN
The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Summitville, TN
- Average snowfall days in January:
5.2 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.4 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:
1.8 days - Average snowfall days in December:
3.1 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Summitville, 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:
4h and 36min - Average sunshine in February:
4h and 24min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 48min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 18min - Average sunshine in October:
7h and 0min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
Summitville, TN
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
10.9 days - Average sunshine days in March:
12.2 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
8.1 days - Average sunshine days in August:
11 days - Average sunshine days in September:
14.1 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
17.1 days - Average sunshine days in December:
14.9 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (8.1 days).
Average UV index
Summitville, 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 and December (UV index 2).
Average cloud cover
Summitville, TN
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility
Summitville, TN
The months with the highest visibility are February, March, April, June, September, October and November (6mi).
The months with the lowest visibility are January, May, July, August and December (5mi).





