Indianapolis
Climate

Indianapolis

Section Title: Climate
Table Section Text: None

Climate data for Indianapolis (Indianapolis International Airport), 1981–2010 normals, extremes 1871–present

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year

Record high °F (°C)	71 (22)	77 (25)	85 (29)	90 (32)	96 (36)	104 (40)	106 (41)	103 (39)	100 (38)	91 (33)	81 (27)	74 (23)	106 (41)

Mean maximum °F (°C)	58.3 (14.6)	63.3 (17.4)	75.3 (24.1)	81.4 (27.4)	86.2 (30.1)	91.9 (33.3)	93.6 (34.2)	92.5 (33.6)	89.8 (32.1)	82.1 (27.8)	71.3 (21.8)	59.8 (15.4)	94.8 (34.9)

Average high °F (°C)	35.6 (2.0)	40.2 (4.6)	51.7 (10.9)	63.4 (17.4)	72.8 (22.7)	81.9 (27.7)	85.0 (29.4)	84.0 (28.9)	77.6 (25.3)	65.3 (18.5)	52.2 (11.2)	38.9 (3.8)	62.4 (16.9)

Daily mean °F (°C)	28.1 (−2.2)	32.1 (0.1)	42.2 (5.7)	53.0 (11.7)	62.7 (17.1)	72.0 (22.2)	75.4 (24.1)	74.2 (23.4)	66.9 (19.4)	55.0 (12.8)	43.6 (6.4)	31.6 (−0.2)	53.1 (11.7)

Average low °F (°C)	20.5 (−6.4)	23.9 (−4.5)	32.8 (0.4)	42.7 (5.9)	52.6 (11.4)	62.1 (16.7)	65.8 (18.8)	64.4 (18.0)	56.2 (13.4)	44.7 (7.1)	35.1 (1.7)	24.4 (−4.2)	43.8 (6.6)

Mean minimum °F (°C)	−2.5 (−19.2)	3.4 (−15.9)	14.9 (−9.5)	26.6 (−3.0)	37.7 (3.2)	48.2 (9.0)	55.0 (12.8)	53.8 (12.1)	40.6 (4.8)	29.6 (−1.3)	20.0 (−6.7)	3.3 (−15.9)	−7.8 (−22.1)

Record low °F (°C)	−27 (−33)	−21 (−29)	−7 (−22)	18 (−8)	28 (−2)	37 (3)	46 (8)	41 (5)	30 (−1)	20 (−7)	−5 (−21)	−23 (−31)	−27 (−33)

Average precipitation inches (mm)	2.66 (68)	2.32 (59)	3.56 (90)	3.81 (97)	5.05 (128)	4.25 (108)	4.55 (116)	3.13 (80)	3.12 (79)	3.12 (79)	3.70 (94)	3.17 (81)	42.44 (1,078)

Average snowfall inches (cm)	8.6 (22)	6.5 (17)	2.6 (6.6)	0.2 (0.51)	trace	0 (0)	0 (0)	0 (0)	0 (0)	0.4 (1.0)	0.7 (1.8)	6.9 (18)	25.9 (66)

Average precipitation days (≥ 0.01 in)	12.1	10.0	11.9	12.0	13.1	11.1	10.5	8.5	8.1	8.6	10.8	12.5	129.2

Average snowy days (≥ 0.1 in)	7.5	5.4	2.5	0.4	0	0	0	0	0	0.2	1.2	6.3	23.5

Average relative humidity (%)	75.0	73.6	69.9	65.6	67.1	68.4	72.8	75.4	74.4	71.6	75.5	78.0	72.3

Mean monthly sunshine hours	132.1	145.7	178.3	214.8	264.7	287.2	295.2	273.7	232.6	196.6	117.1	102.4	2,440.4

Percent possible sunshine	44	49	48	54	59	64	65	64	62	57	39	35	55

Source: NOAA (relative humidity and sun 1961–1990)

Sentence(s)

Winters are cold, with an average January temperature of 28.1 °F (−2.2 °C) in Indianapolis.

final_sentence: Winters are cold, with an average January temperature of 28.1 °F (−2.2 °C) in Indianapolis.