Climate and monthly weather forecastBlenheim, SC
Climate and monthly weather forecast
Weather in January
January, like December, in Blenheim, South Carolina, is a cool winter month, with an average temperature fluctuating between 36°F (2.2°C) and 50.9°F (10.5°C). The lowest temperatures are recorded in January, with averages reaching a high of 50.9°F (10.5°C) and a low of 36°F (2.2°C). Weather in January »Weather in February
February, the last month of the winter in Blenheim, is a refreshing month, with an average temperature varying between 55.6°F (13.1°C) and 38.5°F (3.6°C). With the onset of February, Blenheim's average high-temperature clocks in at a refreshing 55.6°F (13.1°C), showing a minor fluctuation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a comfortable month in Blenheim, South Carolina, with an average temperature ranging between max 62.2°F (16.8°C) and min 44.6°F (7°C). The arrival of March introduces a minor uplift in high-temperatures, adjusting from a moderate 55.6°F (13.1°C) in February to a still refreshing 62.2°F (16.8°C). Weather in March »Weather in April
April in Blenheim, South Carolina, is an agreeable spring month, with temperature in the range of an average high of 72.1°F (22.3°C) and an average low of 53.6°F (12°C). Noticing a change, the average high-temperature during April moves from March's comfortable 62.2°F (16.8°C) to a pleasant 72.1°F (22.3°C). Weather in April »Weather in May
May, the last month of the spring in Blenheim, is a warm month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 79.7°F (26.5°C). The shift from April to May introduces a subtle increase in the average high-temperature, moving from a pleasant 72.1°F (22.3°C) to a warm 79.7°F (26.5°C). Weather in May »Weather in June
June, the first month of the summer in Blenheim, is a tropical month, with an average temperature varying between 69.1°F (20.6°C) and 86.5°F (30.3°C). As Blenheim welcomes June, the average high-temperature sees a modest rise, transitioning from a moderately hot 79.7°F (26.5°C) in May to a tropical 86.5°F (30.3°C). Weather in June »Weather in July
July, the same as June, in Blenheim, South Carolina, is a hot summer month, with an average temperature fluctuating between 72.1°F (22.3°C) and 89.8°F (32.1°C). July proves to be the warmest month, recording an average peak temperature of 89.8°F (32.1°C) and a minimum temperature of 72.1°F (22.3°C). For July, the heat index is appraised at a scorching 107.6°F (42°C). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Blenheim, South Carolina, with an average temperature fluctuating between 88.3°F (31.3°C) and 70.9°F (21.6°C). August's presence marks an average high-temperature of a still hot 88.3°F (31.3°C), subtly varied from July's 89.8°F (32.1°C). Weather in August »Weather in September
September, the first month of the autumn in Blenheim, is also a moderately hot month, with an average temperature ranging between min 66°F (18.9°C) and max 82.9°F (28.3°C). The onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 88.3°F (31.3°C) in August to a warm 82.9°F (28.3°C). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Blenheim, South Carolina, with an average temperature varying between 55°F (12.8°C) and 72.9°F (22.7°C). In Blenheim, entering October brings a temperature decrement, reducing from September's moderately hot 82.9°F (28.3°C) to an agreeable 72.9°F (22.7°C). Weather in October »Weather in November
November, the last month of the autumn in Blenheim, is another refreshing month, with an average temperature varying between 61.3°F (16.3°C) and 44.6°F (7°C). In Blenheim, entering November brings a temperature decrement, reducing from October's pleasant 72.9°F (22.7°C) to an enjoyable 61.3°F (16.3°C). Weather in November »Weather in December
December, the first month of the winter in Blenheim, is still a cool month, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 55°F (12.8°C). December's arrival signals a moderate reduction in the average high-temperature, easing from a comfortable 61.3°F (16.3°C) in November to a cool 55°F (12.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Blenheim, SC
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (50.9°F).
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure
Blenheim, 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:
30.02"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Blenheim, SC
- Average wind speed in January:
7.4mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6.2mph - Average wind speed in October:
6.7mph - Average wind speed in November:
6.7mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Blenheim, SC
The months with the highest relative humidity are May, August, September and December (76%).
The month with the lowest relative humidity is November (72%).
Average rainfall
Blenheim, SC
- Average rainfall in January:
1.61" - Average rainfall in February:
1.93" - Average rainfall in March:
2.01" - Average rainfall in April:
2.4" - Average rainfall in May:
3.39" - Average rainfall in June:
3.03"
- Average rainfall in July:
3.74" - Average rainfall in August:
3.98" - Average rainfall in September:
2.99" - Average rainfall in October:
2.05" - Average rainfall in November:
2.24" - Average rainfall in December:
2.99"
The wettest month (with the highest rainfall) is August (3.98").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days
Blenheim, SC
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (8.3 days).
Average snowfall
Blenheim, SC
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Blenheim, SC
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
0.8 days - Average snowfall days in March:
0.3 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:
0.2 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Blenheim, SC
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - 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 24min
- 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 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
6h and 24min - Average sunshine in March:
7h and 24min - Average sunshine in April:
9h and 18min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
Blenheim, SC
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
16.6 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
8.4 days - Average sunshine days in August:
9.7 days - Average sunshine days in September:
14.3 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
21 days - Average sunshine days in December:
19.8 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (8.4 days).
Average UV index
Blenheim, SC
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Blenheim, SC
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility
Blenheim, 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).





