Climate and monthly weather forecastTheta, TN
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Theta, Tennessee, with temperature in the range of an average low of 30.9°F (-0.6°C) and an average high of 45.3°F (7.4°C). With its high average temperature of 45.3°F (7.4°C) and a low of 30.9°F (-0.6°C), January is regarded as the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a cool month in Theta, Tennessee, with an average temperature ranging between min 34.7°F (1.5°C) and max 50.2°F (10.1°C). Theta's average high-temperature in February sits at a fresh 50.2°F (10.1°C), showing little difference from the previous month. Weather in February »Weather in March
March, the first month of the spring in Theta, is a refreshing month, with an average temperature fluctuating between 58.8°F (14.9°C) and 42.1°F (5.6°C). March's arrival brings a modest temperature shift, moving from a fresh 50.2°F (10.1°C) in February to a moderate 58.8°F (14.9°C). Weather in March »Weather in April
April is a pleasant spring month in Theta, Tennessee, with an average temperature fluctuating between 68.9°F (20.5°C) and 49.8°F (9.9°C). Theta in April experiences an increase in the average high-temperature, moving from March's mild 58.8°F (14.9°C) to a pleasant 68.9°F (20.5°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Theta, Tennessee, with an average temperature fluctuating between 58.6°F (14.8°C) and 77.5°F (25.3°C). Theta, Tennessee, in May experiences a slight uptick in the average high-temperature, adjusting from April's agreeable 68.9°F (20.5°C) to a moderately hot 77.5°F (25.3°C). Weather in May »Weather in June
June, the first month of the summer in Theta, is still a warm month, with an average temperature varying between 85.5°F (29.7°C) and 65.3°F (18.5°C). June brings a slight elevation in the average high-temperature, transitioning from May's 77.5°F (25.3°C) to a still moderately hot 85.5°F (29.7°C). Weather in June »Weather in July
July is a hot summer month in Theta, Tennessee, with an average temperature fluctuating between 87.4°F (30.8°C) and 68.5°F (20.3°C). The highest temperatures are recorded in July, with averages reaching a high of 87.4°F (30.8°C) and a low of 68.5°F (20.3°C). July's heat index is appraised at a very hot 102.2°F (39°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Theta, Tennessee, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 86.5°F (30.3°C). The average high-temperature for August is a still tropical 86.5°F (30.3°C), closely aligning with the temperature of the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Theta, is still a warm month, with an average temperature fluctuating between 61.9°F (16.6°C) and 81.3°F (27.4°C). September brings an average high-temperature of a warm 81.3°F (27.4°C), showing a slight difference from August's 86.5°F (30.3°C). Weather in September »Weather in October
October, the same as September, in Theta, Tennessee, is another pleasant autumn month, with an average temperature ranging between max 69.4°F (20.8°C) and min 50.2°F (10.1°C). October's onset brings a reduction in the average high-temperature, from a moderately hot 81.3°F (27.4°C) in September to a pleasant 69.4°F (20.8°C). Weather in October »Weather in November
November, the last month of the autumn in Theta, is another mild month, with an average temperature ranging between min 40.5°F (4.7°C) and max 57.2°F (14°C). With the onset of November, Theta's average high-temperature adjusts, receding from October's pleasant 69.4°F (20.8°C) to a refreshing 57.2°F (14°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Theta, Tennessee, with an average temperature varying between 35.8°F (2.1°C) and 49.1°F (9.5°C). In Theta, entering December brings a subtle temperature decrement, reducing from November's moderate 57.2°F (14°C) to a chilly 49.1°F (9.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Theta, TN
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.3°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure
Theta, TN
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.99"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 (29.97"Hg).
Average wind speed
Theta, TN
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.6mph - Average wind speed in August:
4.6mph - Average wind speed in September:
5mph - Average wind speed in October:
6.4mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.9mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity
Theta, TN
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Theta, TN
- Average rainfall in January:
1.3" - Average rainfall in February:
1.69" - Average rainfall in March:
1.06" - Average rainfall in April:
1.54" - Average rainfall in May:
1.42" - Average rainfall in June:
1.54"
- Average rainfall in July:
2.17" - Average rainfall in August:
1.85" - Average rainfall in September:
0.98" - Average rainfall in October:
1.5" - Average rainfall in November:
0.94" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is November (0.94").
Average rainfall days
Theta, TN
- Average rainfall days in January:
8.7 days - Average rainfall days in February:
9 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
17.9 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (7.2 days).
Average snowfall
Theta, TN
The months with the highest snowfall are February and December (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Theta, TN
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
2.1 days - Average snowfall days in March:
1 days - Average snowfall days in April:
0 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:
0.2 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
0.9 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight / Average sunshine
Theta, 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 42min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 24min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Theta, TN
- Average sunshine days in January:
20.2 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
13.6 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is July (11.3 days).
Average UV index
Theta, TN
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Theta, TN
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility
Theta, TN
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).





