Climate and monthly weather forecastRockville, RI
Climate and monthly weather forecast
Weather in January
January, like December, in Rockville, Rhode Island, is an icy winter month, with an average temperature fluctuating between 23.7°F (-4.6°C) and 35.1°F (1.7°C). January is the coldest month, exhibiting average temperatures of 35.1°F (1.7°C) at the peak and 23.7°F (-4.6°C) at the base. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Rockville, Rhode Island, with an average temperature varying between 37.6°F (3.1°C) and 24.3°F (-4.3°C). Rockville starts February with an average high-temperature of a still cold 37.6°F (3.1°C), a minor shift from January's 35.1°F (1.7°C). Weather in February »Weather in March
March, the first month of the spring in Rockville, is a frosty month, with an average temperature fluctuating between 44.2°F (6.8°C) and 30.9°F (-0.6°C). The beginning of March signals a minor rise in the average high-temperature, moving from a wintry 37.6°F (3.1°C) in February to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April is a fresh spring month in Rockville, Rhode Island, with an average temperature varying between 55°F (12.8°C) and 40.6°F (4.8°C). With the onset of April, Rockville's average high-temperature experiences a rise, moving from March's frosty 44.2°F (6.8°C) to a cool 55°F (12.8°C). Weather in April »Weather in May
May, the last month of the spring in Rockville, is a refreshing month, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 50°F (10°C). May's arrival brings a temperature shift, moving from a fresh 55°F (12.8°C) in April to a comfortable 65.8°F (18.8°C). Weather in May »Weather in June
June, the first month of the summer in Rockville, is a pleasant month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 57.2°F (14°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from a comfortable 65.8°F (18.8°C) in May to an agreeable 73°F (22.8°C). Weather in June »Weather in July
July is a warm summer month in Rockville, Rhode Island, with an average temperature fluctuating between 64.9°F (18.3°C) and 80.6°F (27°C). July, noted for its average high-temperature of 80.6°F (27°C) and an average low-temperature of 64.9°F (18.3°C), is considered the warmest month. The heat index value during July is calculated to be a hot 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Rockville, Rhode Island, with an average temperature ranging between min 63.7°F (17.6°C) and max 79.5°F (26.4°C). July's transformation into August witnesses an average high-temperature of a still moderately hot 79.5°F (26.4°C), noting a minor change from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Rockville, Rhode Island, with an average temperature ranging between min 57.2°F (14°C) and max 72.7°F (22.6°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 79.5°F (26.4°C) to a pleasant 72.7°F (22.6°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Rockville, Rhode Island, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 61.5°F (16.4°C). A moderate decline in the average high-temperature is seen during October, decreasing from a pleasant 72.7°F (22.6°C) in September to a refreshing 61.5°F (16.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Rockville, Rhode Island, with an average temperature varying between 38.1°F (3.4°C) and 50.2°F (10.1°C). November brings a minor decrease, with the average high-temperature reducing from a comfortable 61.5°F (16.4°C) in October to a fresh 50.2°F (10.1°C). Weather in November »Weather in December
December, the first month of the winter in Rockville, is also an icy month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 40.6°F (4.8°C). With December's arrival, Rockville's weather changes as the average high-temperature falls from a cool 50.2°F (10.1°C) in November to a wintry 40.6°F (4.8°C). Weather in December »Updated: Jul 27, 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
January, with average temperatures reaching a high of 35.1°F (1.7°C) and a low of 23.7°F (-4.6°C), is the coldest month.
In Rockville, during the entire year, the rain falls for 162.4 days and collects up to 33.78" (858mm) of precipitation.
January through May, November and December are months with snowfall.
In Rockville, Rhode Island, during the entire year, snow falls for 27.9 days and aggregates up to 12.2" (310mm) of snow.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February has the least sunshine of the year, with an average of 4.7h of sunshine.
March is the month with the most snowfall. Snow falls for 6.5 days and accumulates 3.54" (90mm) 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.
April is the least humid month, with an average relative humidity of 73%.
June is the most humid month, with an average relative humidity of 80%.
In Rockville, snow does not fall in June through October.
June has the longest days of the year, with an average of 15h and 6min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Rockville.
July brings the highest temperatures, with an average high of 80.6°F (27°C) and an average low of 64.9°F (18.3°C).
The months with the most sunshine are July and August, with an average of 10.3h of sunshine.
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.57" (40mm) of precipitation.
December is the month with the most rainfall. Rain falls for 12 days and accumulates 3.7" (94mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Rockville, RI
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (35.1°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure
Rockville, RI
- Average pressure in January:
30.02"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Rockville, RI
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.5mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity
Rockville, RI
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Rockville, RI
- Average rainfall in January:
2.68" - Average rainfall in February:
2.52" - Average rainfall in March:
2.91" - Average rainfall in April:
3.31" - Average rainfall in May:
2.6" - Average rainfall in June:
2.95"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
Rockville, RI
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
15.6 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
16.1 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
12 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Rockville, RI
- Average snowfall in January:
2.48" - Average snowfall in February:
2.99" - Average snowfall in March:
3.54" - Average snowfall in April:
0.51" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Rockville, RI
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
6.5 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.2 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:
1 days - Average snowfall days in December:
4.8 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Rockville, RI
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 12min - Average sunshine in June:
9h and 6min
- 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 0min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Rockville, RI
- Average sunshine days in January:
16.4 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
12.6 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
14.8 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Rockville, RI
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Rockville, RI
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Rockville, RI
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).
