Living in Allentown, PA, Local Climate & Weather (2024) | Allentown, PA

Seasonal Weather Patterns in Allentown, PA

Temperature

Average Daily Temperature (°F)

	Allentown, PA	U.S. Avg.	Difference
January	31	43	-12
July	76	79	-3

Average Monthly Number of Hot and Freezing Days

	Allentown, PA	U.S. Avg.	Difference
Summer: Hot Days	6	11	-5
Winter: Freezing Days	23	12	+11

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Sunshine

Average Annual Number of Clear and Cloudy Days

	Allentown, PA	U.S. Avg.	Difference
Clear Days	201	217	-16
Cloudy Days	164	148	+16

Average Daylight Hours per Day

	Allentown, PA	U.S. Avg.	Difference
January	10	10	No difference
July	15	15	No difference

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Precipitation

Average Annual Number of Rainy and Snow Days

	Allentown, PA	U.S. Avg.	Difference
Rainy Days	112	107	+5
Snow Days	12	7	+5

Average Monthly Humidity (%) in Allentown, PA

	Allentown, PA	U.S. Avg.	Difference
January	74	68	+6%
July	74	61	+13%

Read more in Precipitation

Is Allentown, PA, Hot or Cold?

Low, Average, and High Temperatures (°F)

	Low	Average	High
January	20	31	41
February	22	33	45
March	30	41	52
April	38	49	61
May	50	59	71
June	59	70	81
July	62	76	87
August	63	72	83
September	55	65	77
October	42	55	68
November	33	44	54
December	24	34	44

Average Monthly Number of Hot Days

	Allentown, PA	U.S. Avg.	Difference
January	0	0	No difference
February	0	0	No difference
March	0	0	No difference
April	0	1	-1
May	1	3	-2
June	4	8	-4
July	8	13	-5
August	6	12	-6
September	1	6	-5
October	0	2	-2
November	0	0	No difference
December	0	0	No difference

Average Monthly Number of Freezing Days

	Allentown, PA	U.S. Avg.	Difference
January	24	13	+11
February	22	10	+12
March	17	7	+10
April	6	2	+4
May	1	0	+1
June	0	0	No difference
July	0	0	No difference
August	0	0	No difference
September	0	0	No difference
October	4	2	+2
November	12	6	+6
December	23	12	+11

Allentown, PA: Clear/Cloudy Skies, and Daylight Hours

Average Number of Clear Days

	Allentown, PA	U.S. Avg.	Difference
January	17	17	No difference
February	15	16	-1
March	16	17	-1
April	15	17	-2
May	16	18	-2
June	16	19	-3
July	17	20	-3
August	17	20	-3
September	18	19	-1
October	18	19	-1
November	19	18	+1
December	17	17	No difference

Average Number of Cloudy Days

	Allentown, PA	U.S. Avg.	Difference
January	14	14	No difference
February	13	12	+1
March	15	14	+1
April	15	13	+2
May	15	13	+2
June	14	11	+3
July	14	11	+3
August	14	11	+3
September	12	11	+1
October	13	12	+1
November	11	12	-1
December	14	14	No difference

Average Daylight Hours per Day

	Allentown, PA	U.S. Avg.	Difference
January	10	10	No difference
February	10	11	-1
March	12	12	No difference
April	13	13	No difference
May	14	14	No difference
June	15	15	No difference
July	15	15	No difference
August	14	14	No difference
September	13	13	No difference
October	11	12	-1
November	10	10	No difference
December	9	10	-1

Allentown, PA: Rainy Days, Snow Days, and Humidity

Average Number of Rainy Days

	Allentown, PA	U.S. Avg.	Difference
January	10	9	+1
February	8	8	No difference
March	10	9	+1
April	9	7	+2
May	9	7	+2
June	10	7	+3
July	10	7	+3
August	10	6	+4
September	8	7	+1
October	8	7	+1
November	10	8	+2
December	10	8	+2

Average Number of Snow Days

	Allentown, PA	U.S. Avg.	Difference
January	5	2	+3
February	3	2	+1
March	2	1	+1
April	0	0	No difference
May	0	0	No difference
June	0	0	No difference
July	0	0	No difference
August	0	0	No difference
September	0	0	No difference
October	0	0	No difference
November	0	1	-1
December	2	2	No difference

Average Humidity (%)

	Allentown, PA	U.S. Avg.	Difference
January	74	68	+6%
February	75	66	+9%
March	71	63	+8%
April	68	59	+9%
May	73	61	+12%
June	74	60	+14%
July	74	61	+13%
August	75	62	+13%
September	75	63	+12%
October	74	63	+11%
November	74	65	+9%
December	77	68	+9%