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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Rock Falls, Wisconsin, is a freezing cold winter month, with temperature in the range of an average high of 19.9°F (-6.7°C) and an average low of 6.3°F (-14.3°C). With average high temperatures of 19.9°F (-6.7°C) and lows of 6.3°F (-14.3°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Rock Falls, Wisconsin, with temperature in the range of an average high of 23.7°F (-4.6°C) and an average low of 9.5°F (-12.5°C). February's presence marks an average high-temperature of a still freezing cold 23.7°F (-4.6°C), subtly varied from January's 19.9°F (-6.7°C). Weather in February »
Weather in March
March, the first month of the spring in Rock Falls, is an icy month, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 38.8°F (3.8°C). The start of March signals a considerable escalation in the average high-temperature, advancing from a subzero cold 23.7°F (-4.6°C) in February to an icy 38.8°F (3.8°C). Weather in March »
Weather in April
April is a fresh spring month in Rock Falls, Wisconsin, with an average temperature ranging between min 35.2°F (1.8°C) and max 51.8°F (11°C). Rock Falls's April weather shows an increase in high-temperatures, moving from March's icy 38.8°F (3.8°C) to a cool 51.8°F (11°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Rock Falls, Wisconsin, with an average temperature varying between 47.1°F (8.4°C) and 64.4°F (18°C). With the onset of May, the average high-temperature slightly shifts from April's cool 51.8°F (11°C) to a refreshing 64.4°F (18°C). Weather in May »
Weather in June
June, the first month of the summer in Rock Falls, is a moderately hot month, with an average temperature varying between 73.8°F (23.2°C) and 56.3°F (13.5°C). The beginning of June marks a shift in the average high-temperature, moving from May's refreshing 64.4°F (18°C) to a warm 73.8°F (23.2°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Rock Falls, Wisconsin, with temperature in the range of an average high of 78.4°F (25.8°C) and an average low of 60.6°F (15.9°C). July is Rock Falls's warmest month, registering average high temperatures of 78.4°F (25.8°C) and lows of 60.6°F (15.9°C). Weather in July »
Weather in August
August, the last month of the summer in Rock Falls, is also a moderately hot month, with an average temperature fluctuating between 76.8°F (24.9°C) and 57.9°F (14.4°C). The advent of August brings an average high-temperature of a still moderately hot 76.8°F (24.9°C), almost identical to the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Rock Falls, is also an agreeable month, with an average temperature varying between 70.5°F (21.4°C) and 50.9°F (10.5°C). Rock Falls's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 76.8°F (24.9°C) in August to a pleasant 70.5°F (21.4°C). Weather in September »
Weather in October
October, the same as September, is a cool autumn month in Rock Falls, Wisconsin, with an average temperature varying between 54.9°F (12.7°C) and 39.9°F (4.4°C). As October begins, there is a noticeable decrease in the average high-temperature, falling from an agreeable 70.5°F (21.4°C) in September to a fresh 54.9°F (12.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Rock Falls, is also an icy month, with an average temperature fluctuating between 27.9°F (-2.3°C) and 40.1°F (4.5°C). The shift from October to November brings a noticeable decrease in the average high-temperature, dropping from a cool 54.9°F (12.7°C) to an icy 40.1°F (4.5°C). Weather in November »
Weather in December
December, the first month of the winter in Rock Falls, is also a subzero cold month, with an average temperature ranging between min 14.9°F (-9.5°C) and max 25.3°F (-3.7°C). December's arrival signals a distinct temperature shift, dropping from a wintry 40.1°F (4.5°C) in November to a subzero cold 25.3°F (-3.7°C). Weather in December »
Updated: Jun 29, 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
What is the coldest month?
January stands out as Rock Falls's coldest month, with temperatures ranging between an average high of 19.9°F (-6.7°C) and a low of 6.3°F (-14.3°C).
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 91%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.87" (22mm) of precipitation.
How many days does it rain in Rock Falls?
Throughout the year, there are 135.6 rainfall days, and 26.57" (675mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How much does it snow in Rock Falls?
In Rock Falls, during the entire year, snow falls for 69.2 days and aggregates up to 26.02" (661mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine in Rock Falls, Wisconsin, is January, with an average of 3h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 13.2 days and accumulates 6.38" (162mm) of snow.
When is Daylight Saving Time (DST)?
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.
What is the least humid month?
April and October, with an average relative humidity of 77%, are the least humid months.
What is the rainiest month?
The month with the most rainfall is June, when the rain falls for 17.9 days and typically aggregates up to 4.57" (116mm) of precipitation.
When it does not snow in Rock Falls?
In Rock Falls, snow does not fall in June through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 30min of daylight.
What is the warmest month?
July, recognised by an average high temperature of 78.4°F (25.8°C) and a low of 60.6°F (15.9°C), is Rock Falls's warmest month.
What is the month with the most sunshine?
The months with the most sunshine are July and August, with an average of 9.6h of sunshine.
What is the month with the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 6.
What is the month with the shortest days?
With an average of 8h and 54min of daylight, December has the shortest days of the year.
Average temperature
Rock Falls, WI
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (19.9°F).
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure
Rock Falls, WI
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Rock Falls, WI
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.6mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.5mph - Average wind speed in November:
8.8mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity
Rock Falls, WI
The months with the highest relative humidity are January and February (91%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall
Rock Falls, WI
- Average rainfall in January:
0.87" - Average rainfall in February:
1.14" - Average rainfall in March:
1.61" - Average rainfall in April:
2.68" - Average rainfall in May:
3.39" - Average rainfall in June:
4.57"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.32" - Average rainfall in September:
2.28" - Average rainfall in October:
2.48" - Average rainfall in November:
1.22" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is June (4.57").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days
Rock Falls, WI
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
3.6 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
17.9 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12 days - Average rainfall days in November:
7.3 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (3.6 days).
Average snowfall
Rock Falls, WI
- Average snowfall in January:
5.04" - Average snowfall in February:
6.38" - Average snowfall in March:
3.03" - Average snowfall in April:
2.87" - Average snowfall in May:
0.43" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Rock Falls, WI
- Average snowfall days in January:
16.9 days - Average snowfall days in February:
13.2 days - Average snowfall days in March:
9.4 days - Average snowfall days in April:
4.9 days - Average snowfall days in May:
0.8 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:
2.1 days - Average snowfall days in November:
8.1 days - Average snowfall days in December:
13.8 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rock Falls, WI
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 3min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
3h and 0min - Average sunshine in February:
3h and 1min - Average sunshine in March:
5h and 1min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 1min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 4min - Average sunshine in December:
3h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days
Rock Falls, WI
- Average sunshine days in January:
13.6 days - Average sunshine days in February:
14 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
16.2 days - Average sunshine days in December:
15.1 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is June (9.8 days).
Average UV index
Rock Falls, WI
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
Rock Falls, WI
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Rock Falls, WI
The months with the highest visibility are April, May, June, August, October and November (6mi).
The month with the lowest visibility is January (4mi).
Rock Falls, Wisconsin, USA
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