Climate and monthly weather forecastRockville, TN
Climate and monthly weather forecast
Weather in January
January, the same as December, in Rockville, Tennessee, is a frosty winter month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 45.7°F (7.6°C). Rockville, Tennessee, notes the coldest temperatures in January, with a high average of 45.7°F (7.6°C) and a low of 30.6°F (-0.8°C). Weather in January »Weather in February
The last month of the winter, February, is a fresh month in Rockville, Tennessee, with an average temperature fluctuating between 50.7°F (10.4°C) and 34.2°F (1.2°C). The advent of February denotes an average high-temperature of a fresh 50.7°F (10.4°C), subtly different from January's 45.7°F (7.6°C). Weather in February »Weather in March
March, the first month of the spring in Rockville, is a refreshing month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 58.6°F (14.8°C). As February transitions into March, Rockville notices a gentle rise in the average high-temperature, transitioning from a fresh 50.7°F (10.4°C) to a mild 58.6°F (14.8°C). Weather in March »Weather in April
April in Rockville, Tennessee, is an agreeable spring month, with temperature in the range of an average high of 69.3°F (20.7°C) and an average low of 48.6°F (9.2°C). An escalation in the average high-temperature is seen with the onset of April, moving from a mild 58.6°F (14.8°C) in March to a pleasant 69.3°F (20.7°C). Weather in April »Weather in May
May, the last month of the spring in Rockville, is a warm month, with an average temperature varying between 77.7°F (25.4°C) and 56.3°F (13.5°C). The start of May brings a subtle shift in the average high-temperature, edging up from April's agreeable 69.3°F (20.7°C) to a warm 77.7°F (25.4°C). Weather in May »Weather in June
June, the first month of the summer in Rockville, is also a moderately hot month, with an average temperature varying between 84.7°F (29.3°C) and 63.1°F (17.3°C). With the onset of June, Rockville's weather sees a minor temperature rise, transitioning from a moderately hot 77.7°F (25.4°C) in May to a still warm 84.7°F (29.3°C). Weather in June »Weather in July
July in Rockville, Tennessee, is a hot summer month, with an average temperature fluctuating between 65.8°F (18.8°C) and 87.3°F (30.7°C). July, recording an average high temperature of 87.3°F (30.7°C) and a low temperature of 65.8°F (18.8°C), is Rockville's warmest month. The heat index value during July is computed to be a sweltering 100.4°F (38°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Rockville, Tennessee, with an average temperature varying between 86.7°F (30.4°C) and 64.8°F (18.2°C). In August, Rockville experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 87.3°F (30.7°C) in July to a still hot 86.7°F (30.4°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Rockville, Tennessee, with an average temperature ranging between min 59.9°F (15.5°C) and max 81.1°F (27.3°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's hot 86.7°F (30.4°C) to a warm 81.1°F (27.3°C). Weather in September »Weather in October
October, the same as September, in Rockville, Tennessee, is an agreeable autumn month, with an average temperature fluctuating between 69.6°F (20.9°C) and 49.1°F (9.5°C). October's arrival coincides with a drop in the average high-temperature, decreasing from September's moderately hot 81.1°F (27.3°C) to a pleasant 69.6°F (20.9°C). Weather in October »Weather in November
November, the last month of the autumn in Rockville, is another mild month, with an average temperature ranging between min 39.6°F (4.2°C) and max 57.9°F (14.4°C). As November arrives, Rockville's weather displays a decrease in high-temperatures, transitioning from October's pleasant 69.6°F (20.9°C) to a moderate 57.9°F (14.4°C). Weather in November »Weather in December
December, the first month of the winter in Rockville, is still a cool month, with an average temperature varying between 36.1°F (2.3°C) and 50.2°F (10.1°C). The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a refreshing 57.9°F (14.4°C) in November to a cool 50.2°F (10.1°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
Rockville, Tennessee, experiences its average lowest temperatures in January, reaching a peak of 45.7°F (7.6°C) and a minimum of 30.6°F (-0.8°C).
Throughout the year, there are 159.4 rainfall days, and 35.71" (907mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
January is the month with the most snowfall in Rockville. Snow falls for 4.1 days and accumulates 1.1" (28mm) of snow.
In Rockville, during the entire year, snow falls for 12.9 days and aggregates up to 3.46" (88mm) of snow.
The months with the least sunshine in Rockville, Tennessee, are January and December, with an average of 5.1h of sunshine.
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most rainfall in Rockville is February, when the rain falls for 12.4 days and typically aggregates up to 3.9" (99mm) of precipitation.
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.
In Rockville, snow does not fall in May through September.
The months with the highest UV index in Rockville, Tennessee, are May through August, with an average maximum UV index of 6.
June has the longest days of the year in Rockville, with an average of 14h and 30min of daylight.
June has the most sunshine of the year in Rockville, Tennessee, with an average of 10.7h of sunshine.
July, with its high-temperature average of 87.3°F (30.7°C) and a low-temperature average of 65.8°F (18.8°C), is the warmest month in Rockville.
With an average relative humidity of 74%, August is the least humid month in Rockville.
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.93" (49mm) of precipitation.
December is the most humid month in Rockville, Tennessee, with an average relative humidity of 79%.
December has the shortest days of the year in Rockville, with an average of 9h and 48min of daylight.
Average temperature
Rockville, TN
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45.7°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure
Rockville, 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:
30.03"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 (29.98"Hg).
Average wind speed
Rockville, TN
- Average wind speed in January:
6.1mph - Average wind speed in February:
6.4mph - Average wind speed in March:
6.4mph - Average wind speed in April:
6.5mph - Average wind speed in May:
5.2mph - Average wind speed in June:
4.5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity
Rockville, TN
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Rockville, TN
- Average rainfall in January:
2.76" - Average rainfall in February:
3.9" - Average rainfall in March:
2.99" - Average rainfall in April:
3.31" - Average rainfall in May:
2.68" - Average rainfall in June:
3.15"
The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days
Rockville, TN
- Average rainfall days in January:
12.2 days - Average rainfall days in February:
12.4 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
9.6 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
12.3 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Rockville, TN
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Rockville, TN
- Average snowfall days in January:
4.1 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1.9 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:
0.2 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 January (4.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Rockville, 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:
5h and 6min - Average sunshine in February:
6h and 0min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 24min - Average sunshine in May:
10h and 6min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 36min - Average sunshine in October:
7h and 12min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days
Rockville, TN
- Average sunshine days in January:
15.8 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
14 days - Average sunshine days in May:
13.2 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
14 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
19.6 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index
Rockville, 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
Rockville, TN
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility
Rockville, TN
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
