Annual mean 11°C · wettest around May · prevailing wind W
Warmest
26.5 °C
Coldest
-0.8 °C
Wettest
51%
Windiest
5.1 m/s
Prevailing
W
4.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Indiana over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -3°C. The rainy (wet) season in Indiana runs from December to July, peaking in May with a 56% chance of rain on a given day. The dry season is August to November; September is the driest month, at 27%. Winds in Indiana are highest in January, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.1 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Indiana come in September, when the sky is typically 45% covered; January is the cloudiest month, at 74%.
Month by month Indiana 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
-1°C
-3°C
-6°C
48%
74%
3.9 m/s
1
0
6
February
3°C
-1°C
-3°C
53%
64%
3.8 m/s
2
0
13
March
7°C
1°C
2°C
53%
58%
3.9 m/s
7
0
29
April
13°C
6°C
8°C
56%
56%
3.5 m/s
24
1
52
May
19°C
12°C
16°C
56%
55%
2.9 m/s
56
12
65
June
24°C
17°C
23°C
55%
48%
2.7 m/s
70
32
49
July
26°C
19°C
27°C
50%
45%
2.3 m/s
59
59
21
August
25°C
18°C
25°C
40%
49%
2.1 m/s
66
50
31
September
22°C
14°C
21°C
27%
45%
2.3 m/s
69
28
57
October
16°C
9°C
13°C
31%
52%
2.7 m/s
39
6
65
November
8°C
3°C
3°C
34%
55%
3.3 m/s
7
0
30
December
3°C
-0°C
-3°C
53%
72%
3.6 m/s
0
0
12
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 Indiana weather by season
Year round, Indiana has days of about -1°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -3°C to 19°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around May 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.
Indiana weather in winterDecember to February
High 2°CLow -2°CRain 51%
Winter in Indiana has typical daily highs of about 2°C and lows of about -2°C, with a 51% chance of rain on a given day.
Indiana weather in springMarch to May
High 13°CLow 7°CRain 55%
Spring in Indiana has typical daily highs of about 13°C and lows of about 7°C, with a 55% chance of rain on a given day.
Indiana weather in summerJune to August
High 25°CLow 18°CRain 48%
Summer in Indiana has typical daily highs of about 25°C and lows of about 18°C, with a 48% chance of rain on a given day.
Indiana weather in autumnSeptember to November
High 15°CLow 9°CRain 30%
Autumn in Indiana has typical daily highs of about 15°C and lows of about 9°C, with a 30% chance of rain on a given day.
When is the rainy season in Indiana?
The rainy (wet) season in Indiana runs from December to July, peaking in May with a 56% chance of rain on a given day. The dry season is August to November; September is the driest month, at 27%.
What time of year is Indiana windiest?
Winds in Indiana are highest in January, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.1 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Indiana year round?
The average temperature in Indiana over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -3°C.