Climate and monthly weather forecastSpeedwell, TN
Climate and monthly weather forecast
Weather in January
January, like December, in Speedwell, Tennessee, is a wintry winter month, with temperature in the range of an average low of 27.3°F (-2.6°C) and an average high of 41.5°F (5.3°C). Temperature readings reach their annual highs in January, averaging 41.5°F (5.3°C) and a minimum average of 27.3°F (-2.6°C). Weather in January »Weather in February
The last month of the winter, February, is a frosty month in Speedwell, Tennessee, with an average temperature fluctuating between 30.7°F (-0.7°C) and 46.4°F (8°C). Speedwell experiences an average high-temperature of a chilly 46.4°F (8°C) in February, subtly different from January's 41.5°F (5.3°C). Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Speedwell, Tennessee, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 37.8°F (3.2°C). Speedwell experiences a minor temperature shift with the start of March, with average high-temperatures moving from a chilly 46.4°F (8°C) in February to a fresh 55°F (12.8°C). Weather in March »Weather in April
April is an enjoyable spring month in Speedwell, Tennessee, with an average temperature fluctuating between 45.7°F (7.6°C) and 66.4°F (19.1°C). April's arrival brings a change in high-temperatures, moving from a fresh 55°F (12.8°C) in March to a comfortable 66.4°F (19.1°C). Weather in April »Weather in May
May, the last month of the spring in Speedwell, is a moderately hot month, with an average temperature fluctuating between 53.2°F (11.8°C) and 75.2°F (24°C). The shift into May is accompanied by a modest temperature increase, with the average high-temperature edging up from a comfortable 66.4°F (19.1°C) in April to a warm 75.2°F (24°C). Weather in May »Weather in June
June, the first month of the summer in Speedwell, is still a warm month, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 82.2°F (27.9°C). Speedwell's transition into June is marked by a minor temperature shift, moving from a moderately hot 75.2°F (24°C) in May to a still warm 82.2°F (27.9°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Speedwell, Tennessee, with an average temperature varying between 63.1°F (17.3°C) and 85.1°F (29.5°C). July stands out as Speedwell's warmest month, with temperatures ranging between an average high of 85.1°F (29.5°C) and a low of 63.1°F (17.3°C). July's average heat index is calculated to be a torrid 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Speedwell, Tennessee, with an average temperature ranging between max 84.6°F (29.2°C) and min 61.7°F (16.5°C). August's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 84.6°F (29.2°C) from July's 85.1°F (29.5°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Speedwell, Tennessee, with an average temperature fluctuating between 78.6°F (25.9°C) and 56.8°F (13.8°C). September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a moderately hot 84.6°F (29.2°C) in August to a still warm 78.6°F (25.9°C). Weather in September »Weather in October
October, like September, in Speedwell, Tennessee, is another enjoyable autumn month, with temperature in the range of an average low of 46.6°F (8.1°C) and an average high of 66.4°F (19.1°C). Onset of October witnesses a reduction in the average high-temperature, falling from a warm 78.6°F (25.9°C) in September to a refreshing 66.4°F (19.1°C). Weather in October »Weather in November
November, the last month of the autumn in Speedwell, is another cool month, with an average temperature ranging between min 37.2°F (2.9°C) and max 54.3°F (12.4°C). Speedwell's November weather shows a moderate shift in high-temperatures, falling from October's comfortable 66.4°F (19.1°C) to a cool 54.3°F (12.4°C). Weather in November »Weather in December
December, the first month of the winter in Speedwell, is also a frosty month, with an average temperature ranging between min 33.1°F (0.6°C) and max 45.9°F (7.7°C). December's arrival signals a moderate reduction in the average high-temperature, easing from a fresh 54.3°F (12.4°C) in November to a chilly 45.9°F (7.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Speedwell, TN
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (41.5°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure
Speedwell, TN
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"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
Speedwell, TN
- Average wind speed in January:
6mph - Average wind speed in February:
6.1mph - Average wind speed in March:
6mph - Average wind speed in April:
6.4mph - Average wind speed in May:
5.2mph - Average wind speed in June:
4.5mph
- Average wind speed in July:
3.9mph - Average wind speed in August:
3.7mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5mph - Average wind speed in December:
5.5mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity
Speedwell, TN
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall
Speedwell, TN
- Average rainfall in January:
3.27" - Average rainfall in February:
4.65" - Average rainfall in March:
3.39" - Average rainfall in April:
3.66" - Average rainfall in May:
3.54" - Average rainfall in June:
3.39"
The wettest month (with the highest rainfall) is February (4.65").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days
Speedwell, TN
- Average rainfall days in January:
12.8 days - Average rainfall days in February:
13.2 days - Average rainfall days in March:
16.7 days - Average rainfall days in April:
17.1 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
17 days
- Average rainfall days in July:
20.1 days - Average rainfall days in August:
17.1 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
14.2 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (11.2 days).
Average snowfall
Speedwell, TN
The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Speedwell, TN
- Average snowfall days in January:
8.9 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
4.4 days - Average snowfall days in April:
0.6 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:
0.5 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Speedwell, TN
- Average daylight in January:
10h and 0min - 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 36min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
5h and 18min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Speedwell, TN
- Average sunshine days in January:
12.2 days - Average sunshine days in February:
9.9 days - Average sunshine days in March:
10.8 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
10.2 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
8.8 days - Average sunshine days in August:
12 days - Average sunshine days in September:
14.3 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
16.1 days - Average sunshine days in December:
13.3 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is July (8.8 days).
Average UV index
Speedwell, 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, November and December (UV index 2).
Average cloud cover
Speedwell, TN
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are June and August (Cloud cover 33).
Average visibility
Speedwell, TN
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





