Climate and monthly weather forecastRock Hill, SC
Climate and monthly weather forecast
The climate of Rock Hill
Rock Hill, South Carolina experiences a Köppen climate classification of Cfa, indicating a humid subtropical environment with no discernible dry season. The climate in this city reveals not only the geographical position but also a distinct connection to its Atlantic Ocean proximity. Over the course of a calendar year, this city experiences a substantial blend of weather variations on several parameters.Temperatures in Rock Hill fluctuate significantly throughout the year. The warmest months are July and August, with average maximum temperatures soaring up to 91.2°F (32.9°C) and 88.9°F (31.6°C) respectively. At the other end of the scale, the coldest months are January and December, when the average minimum temperatures plunge to 34.2°F (1.2°C) and 39°F (3.9°C) respectively. Meanwhile, humidity levels are remarkably consistent, maintaining a range from 70 to 75%.
Rainfall in Rock Hill is relatively even throughout the year, with a slightly higher level of precipitation seen in July and December at 3.43" (87mm) and 3.46" (88mm), respectively. On the contrary, it is drier in September with a rainfall of 1.97" (50mm). The city experiences about 10 to 18 days of rainfall each month, the highest being in July and the lowest in November.
Rock Hill also experiences snowfall, although it only occurs in the colder months of January and December, with average levels of 1.18" (30mm) and 0.87" (22mm) respectively. This city also boasts a considerable range of daylight hours, from a high of 14.5 hours in June to a low of 9.8 hours in December.
The best time to visit Rock Hill
Planning a visit to Rock Hill can be anchored on the weather preference of the visitor. However, if a balance of comfortable temperatures and lower rainfall is desirable, the months of April to June would make the best time to visit. These months offer moderate temperatures with high temperatures from 71.6°F (22°C) to 87.4°F (30.8°C) and consistent daylight hours between 13.1 hours to 14.5 hours. Additionally, these months also record considerable sunshine hours ranging from 8.9 hours to 10.6 hours in a day.The worst time to visit Rock Hill
Visiting Rock Hill during July and November might not present the most comfortable weather conditions. July generally records the highest average temperature and rainfall. Moreover, it also sees the maximum rainfall days with an average of 18.1 days. November doesn't fare much better, it may offer cooler temperatures, however, daylight and sunshine hours dwindle to 10.3 hours and 5.8 hours a day respectively.Spring weather in Rock Hill
Spring months in Rock Hill, from March to May, exhibit a progressive rise in temperatures from an average high of 71.6°F (22°C) in April to 79.7°F (26.5°C) in May. Simultaneously, the average low temperature sees a jump from 52.3°F (11.3°C) to 60.8°F (16°C). These months also herald an increase in the daylight hours up to 14 hours by the end of the season.Summer weather in Rock Hill
Summer in Rock Hill, from June to August, brings hot temperatures and relatively high humidity. The average high temperature shoots up to between 87.4°F (30.8°C) and 91.2°F (32.9°C), while the average low temperature lingers between 67.6°F (19.8°C) and 70.7°F (21.5°C). Despite the high temperatures, this season benefits from the lengthiest daylight hours that peak at 14.5 hours in June.Autumn weather in Rock Hill
Autumn, ranging from September to November, sees a considerable drop in temperatures, from an average high of 83.3°F (28.5°C) in September to a cooler 59.9°F (15.5°C) in November. Rainfall during these months fluctuates little, ranging between 1.97" (50mm) to 2.64" (67mm). The daylight hours also start to shrink, averaging between 12.4 hours and 10.3 hours.Winter weather in Rock Hill
The winter months of December through February in Rock Hill are characterized by lower temperatures and minimal snowfall. The average high temperature dips to between 49.6°F (9.8°C) to 53.1°F (11.7°C) and the low to between 34.2°F (1.2°C) to 37.4°F (3°C). Despite the cold temperatures, rainfall remains constant, ranging from 2.56" (65mm) to 3.46" (88mm). During this season, daylight averages between 9.8 hours and 10.1 hours, the least seen throughout the year.Weather in January
Rock Hill, South Carolina can be quite chilly in January as it transitions from late winter into early spring. This month registers the lowest number of bright hours in a year with an average daylight period of 10.1 hours and a peak sunshine duration of just 5.4 hours. Weather in January »Weather in February
The city of Rock Hill warms up slightly in February, although the winter season is far from over. Daylight duration extends to 11 hours on average, with a noticeable increase in sunshine duration to 6.2 hours. This month sees a slight uptick in rainfall compared to January, on record is an average of 2.56" (65mm) over the period from February 1 to February 28. Weather in February »Weather in March
The advent of spring in March in Rock Hill brings a more pleasant climate. With an increase in average temperatures, the length of daylight extends further reaching a comfortable 12 hours, allowing residents to make the most of the natural light. Weather in March »Weather in April
April in Rock Hill, typically marks the beginning of the region's comfortable weather phase. The number of daylight hours increases further reaching 13.1 hours, with sunshine duration extending to a generous 8.9 hours. The warmer climatic conditions usher in an outdoor atmosphere, devoid of any snowfall, making this the first month of the year free from the white fluff. Weather in April »Weather in May
May ushers in a full-blown spring in the city of Rock Hill. This month is characterized by ample sunlight and warmer conditions, encouraging residents to make plans for outdoor activities. Weather in May is accentuated by longer daylight hours, which reach an average of 14 hours, and the sunshine duration extends to a rewarding 9.5 hours. Weather in May »Weather in June
Rock Hill's June is characterized by typical summer weather as it experiences the warmest conditions of the year. Residents relish the longest daylight hours, peaking at 14.5 hours, outlining the advent of the summer solstice. The city sees a reduction in precipitation, down to 2.52" (64mm), reflecting a more arid spell during June. Weather in June »Weather in July
July, being the heart of summer in Rock Hill, dominates as the hottest month of the year. This month is characterized by high temperatures with an average peak of 91.2°F (32.9°C). Despite the heat, residents can leverage the extended daylight hours of 14.2 hours on average to cool off in the late hours of the day. Weather in July »Weather in August
Rock Hill’s August weather continues to ride on the tails of summer, offering generous amounts of sunshine. Temperature highs remain elevated, though not as extreme as July, rendering an atmosphere conducive for outdoor activities. Weather in August »Weather in September
The arrival of September brings a break in Rock Hill's heat as the summer gradually fizzles out, giving way to fall. This month ushers in cooling temperatures, making it one of the more comfortable months of the year in Rock Hill. Weather in September »Weather in October
In October, Rock Hill weather nuances transform with the advent of substantial fall conditions. The cooler temperatures usher in a phase where outdoor activities are more enjoyable, free from the overpowering summer sunlight. Much of the local flora begins to exhibit fall colors, an eye-catching spectacle enjoyed under an average of 11.3 daylight hours. Weather in October »Weather in November
As November sets in, Rock Hill transitions into the final stages of fall, with a more pronounced drop in temperatures. Days are gradually becoming shorter, and daylight hours shrink to just 10.3. The rainfall in November experiences an uptick to 2.64" (67mm), supplementing the cooling weather conditions. Weather in November »Weather in December
December in Rock Hill traditionally introduces the beginning of winter weather conditions. The daylight hours are at their shortest, staying around 9.8 hours, and the abundance of sunshine tapers off to a yearly low of 5.3 hours. Weather in December »Updated: Feb 13, 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
The month of January sees the average lowest temperatures in Rock Hill, South Carolina, reaching 49.6°F (9.8°C) at the peak and 34.2°F (1.2°C) at the low.
In Rock Hill, South Carolina, during the entire year, the rain falls for 159 days and collects up to 32.76" (832mm) of precipitation.
January through March and December are months with snowfall in Rock Hill, South Carolina.
Throughout the year, there are 3.9 snowfall days, and 3.66" (93mm) of snow is accumulated.
The months with the lowest UV index in Rock Hill are January and December, with an average maximum UV index of 2.
February is the month with the most snowfall in Rock Hill, South Carolina. Snow falls for 1.7 days and accumulates 1.34" (34mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rock Hill, 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 Rock Hill, snow does not fall in April through November.
With an average of 14h and 30min of daylight, June has the longest days of the year.
The warmest period is July, when temperatures fluctuate between an average high of 91.2°F (32.9°C) and a low of 70.7°F (21.5°C).
The least humid month is July, with an average relative humidity of 69%.
July has the most sunshine of the year, with an average of 10.7h of sunshine.
July is the month with the highest UV index, with an average maximum UV index of 7.
The month with the least rainfall in Rock Hill, South Carolina, is September, when the rain falls for 11.2 days and typically collects 1.97" (50mm) of precipitation.
With an average relative humidity of 75%, December is the most humid month in Rock Hill.
December is the month with the most rainfall in Rock Hill, South Carolina. Rain falls for 11.6 days and accumulates 3.46" (88mm) of precipitation.
With an average of 9h and 54min of daylight, December has the shortest days of the year in Rock Hill, South Carolina.
With an average of 5.3h of sunshine, December has the least sunshine of the year.
Average temperature
Rock Hill, SC
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (49.6°F).
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure
Rock Hill, SC
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
Rock Hill, SC
- Average wind speed in January:
7.1mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.7mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.5mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Rock Hill, SC
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Rock Hill, SC
- Average rainfall in January:
2.76" - Average rainfall in February:
2.56" - Average rainfall in March:
2.64" - Average rainfall in April:
3.19" - Average rainfall in May:
2.76" - Average rainfall in June:
2.52"
- Average rainfall in July:
2.68" - Average rainfall in August:
3.43" - Average rainfall in September:
1.97" - Average rainfall in October:
2.17" - Average rainfall in November:
2.64" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days
Rock Hill, SC
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
11.5 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
11.6 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (9.6 days).
Average snowfall
Rock Hill, SC
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Rock Hill, SC
- Average snowfall days in January:
1.1 days - Average snowfall days in February:
1.7 days - Average snowfall days in March:
0.6 days - Average snowfall days in April:
0 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 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.5 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Rock Hill, SC
- 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 54min
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 54min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 6min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
Rock Hill, SC
- Average sunshine days in January:
17.6 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
13 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (10.8 days).
Average UV index
Rock Hill, SC
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Rock Hill, SC
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility
Rock Hill, SC
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).
