Annual mean 15°C · wettest around February · prevailing wind SW
Warmest
30.0 °C
Coldest
4.9 °C
Wettest
55%
Windiest
4.5 m/s
Prevailing
SW
3.4 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 Hartsville over the whole year is 15°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 1°C. Hartsville has no sharply defined rainy season: the chance of rain on a given day runs from 45% in October, the driest month, to 52% in February, the wettest. Winds in Hartsville are highest in March, averaging 3.0 m/s (11 km/h), and lightest in September, at 1.5 m/s (5 km/h). The prevailing wind is from the SW. The clearest skies in Hartsville come in June, when the sky is typically 31% covered; January is the cloudiest month, at 51%.
Month by month Hartsville 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
6°C
1°C
1°C
47%
51%
2.7 m/s
5
0
23
February
10°C
4°C
6°C
52%
50%
2.9 m/s
13
0
41
March
14°C
7°C
10°C
51%
42%
3.0 m/s
29
1
60
April
19°C
10°C
16°C
50%
38%
2.8 m/s
53
10
63
May
24°C
16°C
23°C
50%
40%
2.2 m/s
61
39
41
June
28°C
20°C
29°C
48%
31%
2.0 m/s
35
58
11
July
30°C
22°C
32°C
49%
32%
1.7 m/s
10
49
2
August
29°C
21°C
31°C
48%
35%
1.6 m/s
20
56
3
September
27°C
17°C
27°C
49%
31%
1.5 m/s
43
54
21
October
21°C
11°C
19°C
45%
34%
1.8 m/s
60
22
58
November
14°C
5°C
10°C
48%
35%
2.2 m/s
28
2
60
December
9°C
3°C
5°C
50%
47%
2.5 m/s
10
0
40
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 Hartsville weather by season
Year round, Hartsville has days of about 6°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from 1°C to 22°C through the year, and the average temperature over the year is 15°C around the clock. Rain is most likely around February 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.
Hartsville weather in winterDecember to February
High 8°CLow 3°CRain 49%
Winter in Hartsville has typical daily highs of about 8°C and lows of about 3°C, with a 49% chance of rain on a given day.
Hartsville weather in springMarch to May
High 19°CLow 11°CRain 50%
Spring in Hartsville has typical daily highs of about 19°C and lows of about 11°C, with a 50% chance of rain on a given day.
Hartsville weather in summerJune to August
High 29°CLow 21°CRain 48%
Summer in Hartsville has typical daily highs of about 29°C and lows of about 21°C, with a 48% chance of rain on a given day.
Hartsville weather in autumnSeptember to November
High 21°CLow 11°CRain 47%
Autumn in Hartsville has typical daily highs of about 21°C and lows of about 11°C, with a 47% chance of rain on a given day.
When is the rainy season in Hartsville?
Hartsville has no sharply defined rainy season: the chance of rain on a given day runs from 45% in October, the driest month, to 52% in February, the wettest.
What time of year is Hartsville windiest?
Winds in Hartsville are highest in March, averaging 3.0 m/s (11 km/h), and lightest in September, at 1.5 m/s (5 km/h). The prevailing wind is from the SW.
What is the average temperature in Hartsville year round?
The average temperature in Hartsville over the whole year is 15°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 1°C.