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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, is a frosty winter month in Isom, Tennessee, with an average temperature ranging between max 45°F (7.2°C) and min 30.7°F (-0.7°C). Temperature records mark January as the coldest month, with highs averaging 45°F (7.2°C) and lows at 30.7°F (-0.7°C). Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in Isom, Tennessee, with an average temperature fluctuating between 34.7°F (1.5°C) and 49.8°F (9.9°C). The commencement of February introduces an average high-temperature of a still chilly 49.8°F (9.9°C), closely mirroring the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Isom, is a moderate month, with an average temperature ranging between max 58.6°F (14.8°C) and min 41.9°F (5.5°C). The start of March is characterized by a subtle increase in the average high-temperature, transitioning from a frosty 49.8°F (9.9°C) in February to a mild 58.6°F (14.8°C). Weather in March »
Weather in April
April is a pleasant spring month in Isom, Tennessee, with an average temperature varying between 50°F (10°C) and 68.7°F (20.4°C). The start of April is characterized by an increase in the average high-temperature, transitioning from a moderate 58.6°F (14.8°C) in March to an agreeable 68.7°F (20.4°C). Weather in April »
Weather in May
May, the last month of the spring in Isom, is a moderately hot month, with temperature in the range of an average high of 77.7°F (25.4°C) and an average low of 58.5°F (14.7°C). The onset of May brings a rise in the average high-temperature, elevating from a pleasant 68.7°F (20.4°C) in April to a moderately hot 77.7°F (25.4°C). Weather in May »
Weather in June
June, the first month of the summer in Isom, is a hot month, with an average temperature ranging between max 86°F (30°C) and min 65.8°F (18.8°C). June's onset is marked by a subtle temperature increase, moving from a moderately hot 77.7°F (25.4°C) in May to a hot 86°F (30°C). Weather in June »
Weather in July
July, the same as June, in Isom, Tennessee, is another tropical summer month, with an average temperature varying between 87.6°F (30.9°C) and 68°F (20°C). In Isom, the highest average temperatures are observed in July, with a high of 87.6°F (30.9°C) and a low of 68°F (20°C). The average heat index in July is appraised at a blisteringly hot 104°F (40°C). Weather in July »
Weather in August
August, the last month of the summer in Isom, is another tropical month, with an average temperature ranging between max 87.1°F (30.6°C) and min 67.1°F (19.5°C). Isom marks the onset of August with an average high-temperature of a still hot 87.1°F (30.6°C), subtly divergent from July's 87.6°F (30.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Isom, is still a warm month, with an average temperature fluctuating between 61.9°F (16.6°C) and 81.5°F (27.5°C). September brings a minor shift in the average high-temperature, adjusting from a hot 87.1°F (30.6°C) in August to a moderately hot 81.5°F (27.5°C). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Isom, Tennessee, with an average temperature varying between 69.6°F (20.9°C) and 50.4°F (10.2°C). In Isom, entering October brings a temperature decrement, reducing from September's moderately hot 81.5°F (27.5°C) to an agreeable 69.6°F (20.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is another mild month in Isom, Tennessee, with an average temperature fluctuating between 56.8°F (13.8°C) and 40.6°F (4.8°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a pleasant 69.6°F (20.9°C) to a mild 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 Isom, Tennessee, with an average temperature ranging between min 35.6°F (2°C) and max 49.1°F (9.5°C). Transition into December subtly marks a drop in the average high-temperature, moderately moving from a refreshing 56.8°F (13.8°C) in November to a frosty 49.1°F (9.5°C). Weather in December »
Updated: Feb 14, 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 month is the coldest in Isom?
January is the coldest month in Isom, Tennessee, exhibiting average temperatures of 45°F (7.2°C) at the peak and 30.7°F (-0.7°C) at the base.
How much does it rain in Isom?
Throughout the year, there are 178.7 rainfall days, and 39.21" (996mm) of precipitation is accumulated.
When does it snow in Isom?
Months with snowfall in Isom, Tennessee, are January through April, October through December.
When does it snow the most in Isom?
The month with the most snowfall is January, when snow falls for 3.9 days and typically aggregates up to 0.98" (25mm) of snow.
How many days does it snow in Isom?
In Isom, during the entire year, snow falls for 13.4 days and aggregates up to 3.78" (96mm) of snow.
What are the months with the lowest UV index in Isom?
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Isom.
What is the month with the least sunshine in Isom?
The months with the least sunshine in Isom are February and December, with an average of 4.6h of sunshine.
What is the most humid month in Isom?
The months with the highest humidity are March and December, with an average relative humidity of 79%.
When is Daylight Saving Time (DST) in Isom?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Isom, Tennessee, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
When it does not snow in Isom?
May through September are months without snowfall.
What is the month with the highest UV index in Isom?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Isom, Tennessee.
When are the longest days in Isom?
With an average of 14h and 30min of daylight, June has the longest days of the year in Isom, Tennessee.
What month has the most sunshine in Isom?
With an average of 10.3h of sunshine, June has the most sunshine of the year in Isom.
What time of the year is the hottest in Isom?
In Isom, temperatures reach their average annual highs in July, measuring 87.6°F (30.9°C) and a minimum average of 68°F (20°C).
What is the rainiest month in Isom?
The month with the most rainfall in Isom is July, when the rain falls for 20 days and typically aggregates up to 4.21" (107mm) of precipitation.
What is the driest month in Isom?
September is the month with the least rainfall. Rain falls for 14 days and accumulates 2.44" (62mm) of precipitation.
What is the least humid month in Isom?
October is the least humid month in Isom, with an average relative humidity of 74%.
What is the month with the shortest days in Isom?
With an average of 9h and 48min of daylight, December has the shortest days of the year in Isom.
Average temperature
Isom, 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 (45°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure
Isom, 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
Isom, TN
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8mph - Average wind speed in April:
8.2mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity
Isom, TN
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Isom, TN
- Average rainfall in January:
3.03" - Average rainfall in February:
4.02" - Average rainfall in March:
3.07" - Average rainfall in April:
3.62" - Average rainfall in May:
3.19" - Average rainfall in June:
3.15"
- Average rainfall in July:
4.21" - Average rainfall in August:
3.58" - Average rainfall in September:
2.44" - Average rainfall in October:
3.15" - Average rainfall in November:
2.48" - Average rainfall in December:
3.27"
The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.44").
Average rainfall days
Isom, TN
- Average rainfall days in January:
12.6 days - Average rainfall days in February:
13.5 days - Average rainfall days in March:
15.8 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
17.7 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
18.7 days - Average rainfall days in September:
14 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
13.2 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.5 days).
Average snowfall
Isom, TN
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Isom, TN
- Average snowfall days in January:
3.9 days - Average snowfall days in February:
4 days - Average snowfall days in March:
1.7 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:
0.7 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Isom, TN
- Average daylight in January:
10h and 1min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 3min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
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 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days
Isom, TN
- Average sunshine days in January:
14.5 days - Average sunshine days in February:
11.7 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
8.8 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
14.8 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (8.8 days).
Average UV index
Isom, 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
Isom, TN
The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility
Isom, TN
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
Isom, Tennessee, USA
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