Climate of Allentown, Pennsylvania
Average temperatures

Climate of Allentown, Pennsylvania

Section Title: Average temperatures
Table Section Text: None

Climate data for Allentown, Pennsylvania (Lehigh Valley Int'l), 1981–2010 normals, extremes 1922–present

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

Record high °F (°C)	72 (22)	81 (27)	87 (31)	93 (34)	97 (36)	100 (38)	105 (41)	100 (38)	99 (37)	92 (33)	81 (27)	72 (22)	105 (41)

Mean maximum °F (°C)	57.9 (14.4)	59.6 (15.3)	71.6 (22.0)	82.5 (28.1)	88.2 (31.2)	91.9 (33.3)	94.2 (34.6)	92.5 (33.6)	88.0 (31.1)	79.0 (26.1)	70.6 (21.4)	59.7 (15.4)	95.4 (35.2)

Average high °F (°C)	36.0 (2.2)	39.8 (4.3)	49.4 (9.7)	61.3 (16.3)	71.5 (21.9)	80.1 (26.7)	84.2 (29.0)	82.4 (28.0)	74.9 (23.8)	63.6 (17.6)	52.5 (11.4)	40.5 (4.7)	61.4 (16.3)

Average low °F (°C)	19.5 (−6.9)	21.7 (−5.7)	28.8 (−1.8)	38.5 (3.6)	48.3 (9.1)	58.1 (14.5)	62.7 (17.1)	60.9 (16.1)	52.9 (11.6)	41.3 (5.2)	32.9 (0.5)	24.0 (−4.4)	40.8 (4.9)

Mean minimum °F (°C)	3.0 (−16.1)	5.7 (−14.6)	13.1 (−10.5)	26.0 (−3.3)	35.5 (1.9)	46.3 (7.9)	52.6 (11.4)	49.8 (9.9)	39.2 (4.0)	28.8 (−1.8)	19.9 (−6.7)	9.1 (−12.7)	0.2 (−17.7)

Record low °F (°C)	−15 (−26)	−12 (−24)	−5 (−21)	12 (−11)	28 (−2)	39 (4)	46 (8)	41 (5)	30 (−1)	21 (−6)	3 (−16)	−8 (−22)	−15 (−26)

Average precipitation inches (mm)	3.03 (77)	2.70 (69)	3.39 (86)	3.56 (90)	4.14 (105)	4.31 (109)	4.95 (126)	3.69 (94)	4.62 (117)	3.88 (99)	3.50 (89)	3.58 (91)	45.35 (1,152)

Average snowfall inches (cm)	10.0 (25)	11.1 (28)	4.9 (12)	1.0 (2.5)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0.7 (1.8)	5.2 (13)	32.9 (84)

Average precipitation days (≥ 0.01 in)	11.1	9.8	11.0	12.1	12.1	11.4	10.9	9.5	9.1	9.1	9.8	10.9	126.8

Average snowy days (≥ 0.1 in)	5.6	4.8	2.5	0.4	0	0	0	0	0	0	0.6	3.5	17.4

Average relative humidity (%)	69.1	66.7	62.6	60.9	65.6	67.9	68.8	71.9	74.0	71.8	70.5	71.4	68.4

Source: NOAA (relative humidity 1961–1990)

Sentence(s)

The average precipitation of Allentown is 45.35 inches (1,152 mm) per year.

final_sentence: The average precipitation of Allentown is 45.35 inches (1,152 mm) per year.