Climate and monthly weather forecastRockville, MN
Climate and monthly weather forecast
Weather in January
January, the same as December, in Rockville, Minnesota, is a freezing cold winter month, with an average temperature ranging between max 18.7°F (-7.4°C) and min 5.4°F (-14.8°C). Rockville's temperature records reveal January as the coldest month, marked by average highs of 18.7°F (-7.4°C) and lows of 5.4°F (-14.8°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Rockville, Minnesota, with an average temperature fluctuating between 8.4°F (-13.1°C) and 22.5°F (-5.3°C). The advent of February reveals an average high-temperature of a still subzero cold 22.5°F (-5.3°C), showing minimal difference from the prior month. Weather in February »Weather in March
The first month of the spring, March, is a cold month in Rockville, Minnesota, with an average temperature varying between 23.4°F (-4.8°C) and 37.4°F (3°C). March's arrival signals a significant increase in average high-temperatures, soaring from February's freezing cold 22.5°F (-5.3°C) to an icy 37.4°F (3°C). Weather in March »Weather in April
April is a cool spring month in Rockville, Minnesota, with an average temperature varying between 35.2°F (1.8°C) and 51.4°F (10.8°C). In April, the meteorological conditions change with the average high-temperature moving from a wintry 37.4°F (3°C) in March to a cool 51.4°F (10.8°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Rockville, Minnesota, with an average temperature fluctuating between 47.3°F (8.5°C) and 65.8°F (18.8°C). The shift into May is characterized by a noticeable escalation in the average high-temperature, rising from April's fresh 51.4°F (10.8°C) to a refreshing 65.8°F (18.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Rockville, Minnesota, with an average temperature fluctuating between 56.8°F (13.8°C) and 76.1°F (24.5°C). An upsurge in temperatures occurs as May gives way to June, with average highs shifting from an enjoyable 65.8°F (18.8°C) to a warm 76.1°F (24.5°C). Weather in June »Weather in July
July, like June, in Rockville, Minnesota, is another warm summer month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 61.2°F (16.2°C). July is the month when Rockville sees the highest average temperatures, with a high of 81.1°F (27.3°C) and a low of 61.2°F (16.2°C). The heat index in July is appraised at a hot 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Rockville, Minnesota, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 58.1°F (14.5°C). August's onset sees an average high-temperature of a still warm 78.6°F (25.9°C), exhibiting a slight fluctuation from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Rockville, is still a pleasant month, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 50.9°F (10.5°C). The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a warm 78.6°F (25.9°C) in August to a pleasant 70.9°F (21.6°C). Weather in September »Weather in October
October, like September, in Rockville, Minnesota, is another fresh autumn month, with an average temperature varying between 53.8°F (12.1°C) and 39°F (3.9°C). A notable decrease in the average high-temperature is observed during October, falling from an agreeable 70.9°F (21.6°C) in September to a fresh 53.8°F (12.1°C). Weather in October »Weather in November
November, the last month of the autumn in Rockville, is also an icy month, with an average temperature ranging between min 26.6°F (-3°C) and max 38.7°F (3.7°C). In November, the meteorological conditions markedly change with the average high-temperature descending from a cool 53.8°F (12.1°C) in October to a wintry 38.7°F (3.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Rockville, Minnesota, with an average temperature fluctuating between 23.9°F (-4.5°C) and 13.5°F (-10.3°C). The arrival of December brings a significant change in Rockville's weather, with average high-temperatures dropping from November's cold 38.7°F (3.7°C) to a subzero cold 23.9°F (-4.5°C). Weather in December »Updated: Aug 6, 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
In Rockville, January registers the lowest temperatures, averaging 18.7°F (-7.4°C) at the peak and 5.4°F (-14.8°C) at the lowest.
The most humid month is January, with an average relative humidity of 91%.
January is the month with the least rainfall. Rain falls for 2.2 days and accumulates 0.43" (11mm) of precipitation.
In Rockville, during the entire year, the rain falls for 109.6 days and collects up to 17.52" (445mm) of precipitation.
January through May, October through December are months with snowfall.
In Rockville, during the entire year, snow falls for 61 days and aggregates up to 16.81" (427mm) of snow.
The month with the least sunshine is January, with an average of 3.3h of sunshine.
The months with the lowest UV index in Rockville are January, February, November and December, with an average maximum UV index of 1.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
The months with the lowest humidity are April and May, with an average relative humidity of 70%.
The month with the most rainfall is June, when the rain falls for 15.3 days and typically aggregates up to 3.03" (77mm) of precipitation.
June through September are months without snowfall.
The month with the longest days in Rockville is June, with an average of 15h and 36min of daylight.
In Rockville, July is identified by the average highest temperatures, reaching a peak of 81.1°F (27.3°C) and a low of 61.2°F (16.2°C).
The month with the most sunshine is July, with an average of 10h of sunshine.
The month with the highest UV index is July, with an average maximum UV index of 6.
The month with the most snowfall is December, when snow falls for 12.6 days and typically aggregates up to 4.13" (105mm) of snow.
The month with the shortest days is December, with an average of 8h and 48min of daylight.
Average temperature
Rockville, MN
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (18.7°F).
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure
Rockville, MN
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Rockville, MN
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.8mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
8.2mph - Average wind speed in October:
9mph - Average wind speed in November:
8.9mph - Average wind speed in December:
8.7mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity
Rockville, MN
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (70%).
Average rainfall
Rockville, MN
- Average rainfall in January:
0.43" - Average rainfall in February:
0.51" - Average rainfall in March:
1.14" - Average rainfall in April:
1.61" - Average rainfall in May:
2.05" - Average rainfall in June:
3.03"
- Average rainfall in July:
2.68" - Average rainfall in August:
1.73" - Average rainfall in September:
1.26" - Average rainfall in October:
1.5" - Average rainfall in November:
0.67" - Average rainfall in December:
0.91"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Rockville, MN
- Average rainfall days in January:
2.2 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
8.5 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
12.9 days - Average rainfall days in September:
9.3 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
5.4 days - Average rainfall days in December:
3.4 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is January (2.2 days).
Average snowfall
Rockville, MN
- Average snowfall in January:
2.68" - Average snowfall in February:
2.56" - Average snowfall in March:
3.54" - Average snowfall in April:
1.3" - Average snowfall in May:
0.47" - Average snowfall in June:
0"
The month with the highest snowfall is December (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Rockville, MN
- Average snowfall days in January:
14.4 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
4.1 days - Average snowfall days in May:
0.7 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:
1.7 days - Average snowfall days in November:
7.1 days - Average snowfall days in December:
12.6 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rockville, MN
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
3h and 18min - Average sunshine in February:
3h and 30min - Average sunshine in March:
4h and 54min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 12min - Average sunshine in November:
4h and 36min - Average sunshine in December:
3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days
Rockville, MN
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
15.7 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
14 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
16.6 days - Average sunshine days in September:
19.2 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
17.4 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is June (12.4 days).
Average UV index
Rockville, MN
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Rockville, MN
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility
Rockville, MN
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
