Climate and monthly weather forecastMcHarg, TN
Climate and monthly weather forecast
Weather in January
January, the same as December, in McHarg, Tennessee, is a frosty winter month, with an average temperature ranging between min 30.2°F (-1°C) and max 45.1°F (7.3°C). January, marked by an average high-temperature of 45.1°F (7.3°C) and a low-temperature of 30.2°F (-1°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in McHarg, is a fresh month, with temperature in the range of an average high of 50°F (10°C) and an average low of 34.3°F (1.3°C). McHarg notes an average high-temperature of a fresh 50°F (10°C) in February, hardly diverging from January. Weather in February »Weather in March
March, the first month of the spring in McHarg, is a moderate month, with temperature in the range of an average high of 57.4°F (14.1°C) and an average low of 40.3°F (4.6°C). March sees a marginal temperature increase, moving from a cool 50°F (10°C) in February to a mild 57.4°F (14.1°C). Weather in March »Weather in April
April is a comfortable spring month in McHarg, Tennessee, with temperature in the range of an average high of 67.3°F (19.6°C) and an average low of 47.8°F (8.8°C). Entering April, McHarg sees a temperature rise, with the average high-temperature advancing from March's mild 57.4°F (14.1°C) to an enjoyable 67.3°F (19.6°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in McHarg, Tennessee, with an average temperature varying between 75°F (23.9°C) and 55°F (12.8°C). Observing a minor shift, the average high-temperature during May adjusts from April's refreshing 67.3°F (19.6°C) to a moderately hot 75°F (23.9°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in McHarg, Tennessee, with an average temperature ranging between max 82.6°F (28.1°C) and min 61.3°F (16.3°C). McHarg observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's 75°F (23.9°C) to a still warm 82.6°F (28.1°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in McHarg, Tennessee, with an average temperature fluctuating between 64°F (17.8°C) and 84.9°F (29.4°C). McHarg's temperature records reveal July as the warmest month, marked by average highs of 84.9°F (29.4°C) and lows of 64°F (17.8°C). Throughout July, the heat index is evaluated at a very hot 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in McHarg, Tennessee, with an average temperature fluctuating between 63.7°F (17.6°C) and 84.4°F (29.1°C). McHarg, Tennessee, marks the arrival of August with an average high-temperature of a still moderately hot 84.4°F (29.1°C), hardly different from July's 84.9°F (29.4°C). Weather in August »Weather in September
September, the first month of the autumn in McHarg, is still a warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 79.3°F (26.3°C). The dawn of September sees an average high-temperature of a still warm 79.3°F (26.3°C), subtly contrasting with August's 84.4°F (29.1°C). Weather in September »Weather in October
October, like September, is an agreeable autumn month in McHarg, Tennessee, with an average temperature ranging between min 48.4°F (9.1°C) and max 68.5°F (20.3°C). In McHarg, the average high-temperature in October drops from a warm 79.3°F (26.3°C) in September to an agreeable 68.5°F (20.3°C). Weather in October »Weather in November
November, the last month of the autumn in McHarg, is another mild month, with temperature in the range of an average low of 39.2°F (4°C) and an average high of 57°F (13.9°C). The transition into November indicates a reduction in the average high-temperature, down to a refreshing 57°F (13.9°C) from October's agreeable 68.5°F (20.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in McHarg, Tennessee, with an average temperature ranging between max 50°F (10°C) and min 35.4°F (1.9°C). December implies a soft temperature shift, with average high-temperatures reducing from November's refreshing 57°F (13.9°C) to a cool 50°F (10°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
McHarg, TN
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure
McHarg, TN
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.1"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"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 months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed
McHarg, TN
- Average wind speed in January:
6.3mph - Average wind speed in February:
6.5mph - Average wind speed in March:
6.3mph - Average wind speed in April:
6.3mph - Average wind speed in May:
5.1mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
3.8mph - Average wind speed in August:
3.7mph - Average wind speed in September:
3.9mph - Average wind speed in October:
5mph - Average wind speed in November:
5.3mph - Average wind speed in December:
5.8mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity
McHarg, TN
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall
McHarg, TN
- Average rainfall in January:
3.98" - Average rainfall in February:
4.41" - Average rainfall in March:
3.94" - Average rainfall in April:
4.17" - Average rainfall in May:
4.33" - Average rainfall in June:
3.66"
The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").
Average rainfall days
McHarg, TN
- Average rainfall days in January:
14.2 days - Average rainfall days in February:
13.9 days - Average rainfall days in March:
16.8 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
19.8 days
- Average rainfall days in July:
19.8 days - Average rainfall days in August:
18.5 days - Average rainfall days in September:
14.9 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
14.5 days
The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).
Average snowfall
McHarg, TN
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
McHarg, TN
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
3.7 days - Average snowfall days in March:
2.2 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:
0.4 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
McHarg, 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 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - 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:
5h and 18min - Average sunshine in February:
6h and 12min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 36min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 30min - Average sunshine in October:
7h and 0min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
McHarg, TN
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
11.1 days - Average sunshine days in March:
11.8 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
8 days
- Average sunshine days in July:
9.4 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
13.2 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
17 days - Average sunshine days in December:
14.6 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).
Average UV index
McHarg, 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
McHarg, TN
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility
McHarg, TN
The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (5mi).





