Duluth, Minnesota
Climate

Duluth, Minnesota

Section Title: Climate
Table Section Text: None

Climate data for Duluth Int'l, Minnesota (1981–2010 normals, extremes 1871–present)

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

Record high °F (°C)	55 (13)	58 (14)	81 (27)	88 (31)	95 (35)	97 (36)	106 (41)	97 (36)	95 (35)	86 (30)	73 (23)	56 (13)	106 (41)

Mean maximum °F (°C)	38.8 (3.8)	43.3 (6.3)	55.0 (12.8)	71.9 (22.2)	80.9 (27.2)	85.4 (29.7)	88.7 (31.5)	86.7 (30.4)	81.7 (27.6)	72.4 (22.4)	54.7 (12.6)	39.5 (4.2)	90.2 (32.3)

Average high °F (°C)	18.9 (−7.3)	24.0 (−4.4)	34.4 (1.3)	49.2 (9.6)	62.2 (16.8)	70.8 (21.6)	76.3 (24.6)	74.3 (23.5)	65.0 (18.3)	51.5 (10.8)	35.6 (2.0)	22.3 (−5.4)	48.7 (9.3)

Average low °F (°C)	1.5 (−16.9)	6.1 (−14.4)	17.5 (−8.1)	30.0 (−1.1)	40.6 (4.8)	49.3 (9.6)	55.4 (13.0)	54.4 (12.4)	46.1 (7.8)	34.8 (1.6)	21.9 (−5.6)	7.3 (−13.7)	30.4 (−0.9)

Mean minimum °F (°C)	−23.2 (−30.7)	−19.4 (−28.6)	−8 (−22)	13.9 (−10.1)	27.8 (−2.3)	36.6 (2.6)	43.2 (6.2)	42.1 (5.6)	30.9 (−0.6)	20.6 (−6.3)	2.1 (−16.6)	−16.7 (−27.1)	−26.1 (−32.3)

Record low °F (°C)	−41 (−41)	−39 (−39)	−29 (−34)	−5 (−21)	16 (−9)	27 (−3)	35 (2)	32 (0)	23 (−5)	6 (−14)	−29 (−34)	−35 (−37)	−41 (−41)

Average precipitation inches (mm)	0.96 (24)	0.81 (21)	1.49 (38)	2.43 (62)	3.23 (82)	4.23 (107)	3.85 (98)	3.70 (94)	4.11 (104)	2.85 (72)	2.09 (53)	1.21 (31)	30.96 (786)

Average snowfall inches (cm)	19.4 (49)	12.4 (31)	13.2 (34)	6.9 (18)	0.4 (1.0)	0 (0)	0 (0)	0 (0)	0.1 (0.25)	2.3 (5.8)	13.7 (35)	17.7 (45)	86.1 (219)

Average precipitation days (≥ 0.01 in)	10.3	8.5	9.7	10.6	12.3	12.6	11.8	10.8	12.3	11.3	10.7	10.5	131.4

Average snowy days (≥ 0.1 in)	12.9	10.1	8.7	4.6	0.5	0	0	0	0.1	2.0	8.9	12.8	60.6

Average relative humidity (%)	72.0	69.8	69.3	63.6	62.7	69.5	70.9	74.5	75.7	71.4	74.9	76.3	70.9

Mean monthly sunshine hours	132.7	149.7	190.7	229.5	263.5	272.8	307.5	261.8	194.0	150.4	98.5	102.3	2,353.4

Percent possible sunshine	47	52	52	56	57	58	64	60	51	44	35	38	53

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

Sentence(s)

Duluth had an average monthly minimum temperature of 1.5 °F (−16.9 °C).

final_sentence: Duluth had an average monthly minimum temperature of 1.5 °F (−16.9 °C).