Juneau, Alaska
Climate

Juneau, Alaska

Section Title: Climate
Table Section Text: None

Climate data for Juneau, Alaska (Juneau Int'l, 1981–2010 normals, extremes 1890–present)

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

Record high °F (°C)	57 (14)	57 (14)	61 (16)	74 (23)	82 (28)	87 (31)	90 (32)	87 (31)	85 (29)	68 (20)	64 (18)	59 (15)	90 (32)

Mean maximum °F (°C)	44.5 (6.9)	45.3 (7.4)	48.8 (9.3)	61.7 (16.5)	71.1 (21.7)	77.9 (25.5)	77.3 (25.2)	76.1 (24.5)	65.7 (18.7)	55.5 (13.1)	47.1 (8.4)	45.0 (7.2)	80.3 (26.8)

Average high °F (°C)	32.8 (0.4)	35.2 (1.8)	39.6 (4.2)	48.4 (9.1)	56.6 (13.7)	62.2 (16.8)	63.9 (17.7)	62.7 (17.1)	55.7 (13.2)	47.0 (8.3)	37.8 (3.2)	34.1 (1.2)	48.0 (8.9)

Daily mean °F (°C)	28.3 (−2.1)	30.1 (−1.1)	33.8 (1.0)	40.8 (4.9)	48.6 (9.2)	54.6 (12.6)	56.9 (13.8)	55.9 (13.3)	50.0 (10.0)	42.4 (5.8)	33.4 (0.8)	29.9 (−1.2)	42.1 (5.6)

Average low °F (°C)	23.7 (−4.6)	25.0 (−3.9)	28.0 (−2.2)	33.3 (0.7)	40.6 (4.8)	46.9 (8.3)	50.0 (10.0)	49.0 (9.4)	44.4 (6.9)	37.8 (3.2)	29.1 (−1.6)	25.6 (−3.6)	36.1 (2.3)

Mean minimum °F (°C)	6.0 (−14.4)	9.0 (−12.8)	13.6 (−10.2)	23.2 (−4.9)	31.7 (−0.2)	38.8 (3.8)	43.6 (6.4)	41.0 (5.0)	32.8 (0.4)	24.5 (−4.2)	14.3 (−9.8)	7.5 (−13.6)	−1.4 (−18.6)

Record low °F (°C)	−22 (−30)	−22 (−30)	−15 (−26)	6 (−14)	25 (−4)	31 (−1)	36 (2)	27 (−3)	23 (−5)	11 (−12)	−5 (−21)	−21 (−29)	−22 (−30)

Average precipitation inches (mm)	5.35 (136)	4.13 (105)	3.78 (96)	2.94 (75)	3.40 (86)	3.24 (82)	4.60 (117)	5.73 (146)	8.64 (219)	8.63 (219)	5.99 (152)	5.84 (148)	62.27 (1,581)

Average snowfall inches (cm)	27.7 (70)	16.8 (43)	11.6 (29)	1.1 (2.8)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.8 (2.0)	13.1 (33)	15.6 (40)	86.7 (220)

Average precipitation days (≥ 0.01 in)	20.6	16.6	18.9	17.0	16.3	15.8	17.7	19.1	22.4	23.9	20.9	20.6	229.8

Average snowy days (≥ 0.1 in)	10.6	7.9	6.8	1.3	0.0	0.0	0.0	0.0	0.0	0.6	5.9	10.0	43.1

Average relative humidity (%)	79.9	80.8	79.4	76.8	76.3	78.3	81.3	84.3	87.9	87.7	85.1	82.8	81.7

Mean monthly sunshine hours	80.9	89.2	137.3	182.3	231.7	189.3	182.9	161.6	109.6	66.2	58.5	41.2	1,530.7

Percent possible sunshine	36	34	37	42	44	35	34	34	28	21	25	20	34

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

Sentence(s)

Juneau's precipitation per year averaged 62.27 inches.

final_sentence: Juneau's precipitation per year averaged 62.27 inches.