Annual mean 17°C · wettest around February · prevailing wind SW
Warmest
30.6 °C
Coldest
7.9 °C
Wettest
39%
Windiest
4.5 m/s
Prevailing
SW
3.5 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 Hartselle over the whole year is 17°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 3°C. Hartselle has no sharply defined rainy season: the chance of rain on a given day runs from 26% in September, the driest month, to 34% in February, the wettest. Winds in Hartselle are highest in February, averaging 3.1 m/s (11 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Hartselle come in September, when the sky is typically 30% covered; February is the cloudiest month, at 49%.
Month by month Hartselle 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
8°C
3°C
4°C
31%
45%
2.9 m/s
10
0
34
February
12°C
6°C
8°C
34%
49%
3.1 m/s
23
0
52
March
16°C
9°C
13°C
32%
39%
3.1 m/s
41
2
69
April
20°C
12°C
18°C
31%
36%
2.8 m/s
64
15
64
May
25°C
17°C
24°C
33%
39%
2.3 m/s
61
48
33
June
29°C
21°C
30°C
32%
33%
2.0 m/s
25
60
6
July
30°C
23°C
34°C
28%
32%
1.7 m/s
5
41
1
August
30°C
22°C
32°C
31%
34%
1.6 m/s
11
52
1
September
28°C
18°C
29°C
26%
30%
1.8 m/s
33
58
14
October
23°C
13°C
21°C
27%
32%
2.0 m/s
65
30
52
November
16°C
7°C
13°C
28%
35%
2.3 m/s
39
5
67
December
11°C
5°C
7°C
32%
46%
2.7 m/s
18
0
50
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 Hartselle weather by season
Year round, Hartselle has days of about 8°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from 3°C to 23°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around February and least likely around September. 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.
Hartselle weather in winterDecember to February
High 10°CLow 4°CRain 33%
Winter in Hartselle has typical daily highs of about 10°C and lows of about 4°C, with a 33% chance of rain on a given day.
Hartselle weather in springMarch to May
High 21°CLow 12°CRain 32%
Spring in Hartselle has typical daily highs of about 21°C and lows of about 12°C, with a 32% chance of rain on a given day.
Hartselle weather in summerJune to August
High 30°CLow 22°CRain 30%
Summer in Hartselle has typical daily highs of about 30°C and lows of about 22°C, with a 30% chance of rain on a given day.
Hartselle weather in autumnSeptember to November
High 22°CLow 13°CRain 27%
Autumn in Hartselle has typical daily highs of about 22°C and lows of about 13°C, with a 27% chance of rain on a given day.
When is the rainy season in Hartselle?
Hartselle has no sharply defined rainy season: the chance of rain on a given day runs from 26% in September, the driest month, to 34% in February, the wettest.
What time of year is Hartselle windiest?
Winds in Hartselle are highest in February, averaging 3.1 m/s (11 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Hartselle year round?
The average temperature in Hartselle over the whole year is 17°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 3°C.