Climate and monthly weather forecastHeiskell, TN
Climate and monthly weather forecast
Weather in January
January, the same as December, in Heiskell, Tennessee, is a frosty winter month, with an average temperature varying between 44.8°F (7.1°C) and 29.3°F (-1.5°C). In Heiskell, the lowest average temperatures are observed in January, with a high of 44.8°F (7.1°C) and a low of 29.3°F (-1.5°C). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Heiskell, Tennessee, with an average temperature ranging between min 33.4°F (0.8°C) and max 49.6°F (9.8°C). The onset of February manifests an average high-temperature of a still frosty 49.6°F (9.8°C), demonstrating a minor variation from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Heiskell, is a moderate month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 58.1°F (14.5°C). With the onset of March, Heiskell's average high-temperature sees a modest rise, moving from February's chilly 49.6°F (9.8°C) to a refreshing 58.1°F (14.5°C). Weather in March »Weather in April
April in Heiskell, Tennessee, is an agreeable spring month, with an average temperature ranging between max 69.3°F (20.7°C) and min 48°F (8.9°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a refreshing 58.1°F (14.5°C) to an agreeable 69.3°F (20.7°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Heiskell, Tennessee, with an average temperature fluctuating between 55.9°F (13.3°C) and 78.4°F (25.8°C). In Heiskell, stepping into May brings a temperature increase, moving up from April's agreeable 69.3°F (20.7°C) to a warm 78.4°F (25.8°C). Weather in May »Weather in June
June, the first month of the summer in Heiskell, is a tropical month, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 86°F (30°C). The average high-temperature mildly increases in June, edging from a warm 78.4°F (25.8°C) in May to a tropical 86°F (30°C). Weather in June »Weather in July
July, like June, is a hot summer month in Heiskell, Tennessee, with an average temperature varying between 88.9°F (31.6°C) and 66.7°F (19.3°C). In Heiskell, Tennessee, the average temperatures in July are the highest, with a peak at 88.9°F (31.6°C) and a low of 66.7°F (19.3°C). During July, the heat index is calculated to be a scorching 104°F (40°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Heiskell, Tennessee, with an average temperature ranging between min 65.5°F (18.6°C) and max 88.2°F (31.2°C). Heiskell, Tennessee, marks the onset of August with an average high-temperature of a still tropical 88.2°F (31.2°C), subtly divergent from July's 88.9°F (31.6°C). Weather in August »Weather in September
September, the first month of the autumn in Heiskell, is still a warm month, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 59.9°F (15.5°C). September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a hot 88.2°F (31.2°C) in August to a warm 82.2°F (27.9°C). Weather in September »Weather in October
October, the same as September, in Heiskell, Tennessee, is an agreeable autumn month, with an average temperature varying between 49.1°F (9.5°C) and 69.4°F (20.8°C). October suggests a modest reduction in the average high-temperature, shifting from a moderately hot 82.2°F (27.9°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 Heiskell, is another mild month, with an average temperature fluctuating between 39.2°F (4°C) and 57.2°F (14°C). As November begins, there is a decrease in the average high-temperature, falling from an agreeable 69.4°F (20.8°C) in October to a moderate 57.2°F (14°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Heiskell, Tennessee, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 35.1°F (1.7°C). Heiskell's transition into December involves a gentle shift in temperature, receding from a mild 57.2°F (14°C) in November to a frosty 49.1°F (9.5°C). Weather in December »Updated: Feb 14, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, on average, is the coldest month in Heiskell, Tennessee, registering a high temperature of 44.8°F (7.1°C) and a low of 29.3°F (-1.5°C).
In Heiskell, Tennessee, during the entire year, the rain falls for 148.9 days and collects up to 29.57" (751mm) of precipitation.
Months with snowfall in Heiskell, Tennessee, are January through April, November and December.
In Heiskell, during the entire year, snow falls for 11.5 days and aggregates up to 3.94" (100mm) of snow.
January has the least sunshine of the year, with an average of 4.9h of sunshine.
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Heiskell.
The months with the highest humidity in Heiskell, Tennessee, are February and December, with an average relative humidity of 78%.
February is the month with the most rainfall in Heiskell, Tennessee. Rain falls for 11.2 days and accumulates 3.66" (93mm) of precipitation.
The month with the most snowfall is February, when snow falls for 3.3 days and typically aggregates up to 1.57" (40mm) 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.
May through October are months without snowfall.
The months with the highest UV index in Heiskell are May through August, with an average maximum UV index of 6.
The month with the longest days is June, with an average of 14h and 36min of daylight.
The month with the most sunshine in Heiskell is June, with an average of 10.6h of sunshine.
July, characterized by an average high temperature of 88.9°F (31.6°C) and a low temperature of 66.7°F (19.3°C), is generally the warmest month in Heiskell.
The least humid month in Heiskell, Tennessee, is August, with an average relative humidity of 70%.
The month with the least rainfall in Heiskell, Tennessee, is September, when the rain falls for 11.3 days and typically collects 1.5" (38mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 48min of daylight.
Average temperature
Heiskell, TN
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.8°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure
Heiskell, 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
Heiskell, TN
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.8mph - Average wind speed in March:
5.7mph - Average wind speed in April:
6mph - Average wind speed in May:
4.9mph - Average wind speed in June:
4.5mph
- Average wind speed in July:
4mph - Average wind speed in August:
3.8mph - Average wind speed in September:
4mph - Average wind speed in October:
4.7mph - Average wind speed in November:
4.7mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity
Heiskell, TN
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall
Heiskell, TN
- Average rainfall in January:
2.48" - Average rainfall in February:
3.66" - Average rainfall in March:
2.52" - Average rainfall in April:
2.8" - Average rainfall in May:
2.13" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.76" - Average rainfall in August:
2.01" - Average rainfall in September:
1.5" - Average rainfall in October:
2.09" - Average rainfall in November:
2.13" - Average rainfall in December:
3.07"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Heiskell, TN
- Average rainfall days in January:
10.9 days - Average rainfall days in February:
11.2 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
12.2 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is November (8.4 days).
Average snowfall
Heiskell, TN
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Heiskell, TN
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
1.7 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Heiskell, 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 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 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
5h and 42min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 36min - Average sunshine in October:
7h and 0min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days
Heiskell, TN
- Average sunshine days in January:
17 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
14 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
14.2 days
- Average sunshine days in July:
12.9 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
20 days - Average sunshine days in December:
17 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index
Heiskell, 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
Heiskell, TN
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility
Heiskell, TN
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
