Annual mean 16°C · wettest around December · prevailing wind W
Warmest
31.3 °C
Coldest
9.1 °C
Wettest
19%
Windiest
4.2 m/s
Prevailing
W
3.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Fort Mill over the whole year is 16°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 2°C. Fort Mill has no sharply defined rainy season: the chance of rain on a given day runs from 15% in October, the driest month, to 21% in December, the wettest. Winds in Fort Mill are highest in March, averaging 2.5 m/s (9 km/h), and lightest in October, at 1.6 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Fort Mill come in July, when the sky is typically 30% covered; February is the cloudiest month, at 44%.
Month by month Fort Mill climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
10°C
2°C
6°C
20%
39%
2.2 m/s
9
0
43
February
13°C
5°C
10°C
20%
44%
2.4 m/s
28
0
62
March
17°C
8°C
13°C
18%
39%
2.5 m/s
44
3
73
April
21°C
12°C
18°C
17%
32%
2.5 m/s
70
18
69
May
25°C
17°C
24°C
19%
40%
2.2 m/s
65
48
38
June
29°C
21°C
30°C
16%
35%
2.0 m/s
29
67
8
July
31°C
23°C
33°C
16%
30%
1.9 m/s
5
48
0
August
29°C
22°C
32°C
17%
39%
1.7 m/s
15
52
3
September
27°C
19°C
28°C
16%
37%
1.7 m/s
43
61
17
October
23°C
12°C
22°C
15%
32%
1.6 m/s
73
30
58
November
16°C
7°C
13°C
17%
37%
1.8 m/s
42
4
75
December
12°C
4°C
8°C
21%
42%
2.0 m/s
18
0
56
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Fort Mill weather by season
Year round, Fort Mill has days of about 10°C at their warmest in January, its coolest month, and 31°C in July, its warmest; the coolest hours of the day run from 2°C to 23°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around December and least likely around October. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Fort Mill weather in winterDecember to February
High 11°CLow 4°CRain 20%
Winter in Fort Mill has typical daily highs of about 11°C and lows of about 4°C, with a 20% chance of rain on a given day.
Fort Mill weather in springMarch to May
High 21°CLow 12°CRain 18%
Spring in Fort Mill has typical daily highs of about 21°C and lows of about 12°C, with a 18% chance of rain on a given day.
Fort Mill weather in summerJune to August
High 30°CLow 22°CRain 17%
Summer in Fort Mill has typical daily highs of about 30°C and lows of about 22°C, with a 17% chance of rain on a given day.
Fort Mill weather in autumnSeptember to November
High 22°CLow 12°CRain 16%
Autumn in Fort Mill has typical daily highs of about 22°C and lows of about 12°C, with a 16% chance of rain on a given day.
When is the rainy season in Fort Mill?
Fort Mill has no sharply defined rainy season: the chance of rain on a given day runs from 15% in October, the driest month, to 21% in December, the wettest.
What time of year is Fort Mill windiest?
Winds in Fort Mill are highest in March, averaging 2.5 m/s (9 km/h), and lightest in October, at 1.6 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Fort Mill year round?
The average temperature in Fort Mill over the whole year is 16°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 2°C.