Climate Allentown - Pennsylvania

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	36	40	49	61	71	80
Average low in ºF Av. low Lo	20	22	29	38	48	58
Av. precipitation in inch Av. precip. Pre.	3.03	2.70	3.39	3.56	4.14	4.31
Av. snowfall in inch Snowfall Sn	10	11	5	1	0	0

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	84	82	75	64	53	40
Average low in ºF Av. low Lo	63	61	53	41	33	24
Av. precipitation in inch Av. precip. Pre.	4.95	3.69	4.62	3.88	3.50	3.58
Av. snowfall in inch Snowfall Sn	0	0	0	0	1	5

Allentown Climate Graph - Pennsylvania Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	36.5	20.3	0.08	0.08	0.31	0.80
2 Jan	36.4	20.2	0.20	0.20	0.51	1.30
3 Jan	36.3	20.1	0.28	0.28	0.79	2.00
4 Jan	36.2	20.0	0.35	0.35	1.10	2.80
5 Jan	36.1	19.8	0.47	0.47	1.42	3.60
6 Jan	36.0	19.7	0.55	0.55	1.69	4.30
7 Jan	35.9	19.7	0.67	0.67	1.89	4.80
8 Jan	35.8	19.6	0.75	0.75	2.28	5.80
9 Jan	35.8	19.5	0.83	0.83	2.60	6.60
10 Jan	35.7	19.4	0.94	0.94	2.91	7.40
11 Jan	35.7	19.4	1.02	1.02	3.19	8.10
12 Jan	35.7	19.3	1.14	1.14	3.50	8.90
13 Jan	35.7	19.3	1.22	1.22	3.90	9.90
14 Jan	35.6	19.3	1.34	1.34	4.21	10.70
15 Jan	35.6	19.2	1.46	1.46	4.61	11.70
16 Jan	35.7	19.2	1.54	1.54	4.88	12.40
17 Jan	35.7	19.2	1.65	1.65	5.20	13.20
18 Jan	35.7	19.2	1.73	1.73	5.51	14.00
19 Jan	35.7	19.2	1.85	1.85	5.91	15.00
20 Jan	35.8	19.2	1.93	1.93	6.18	15.70
21 Jan	35.8	19.2	2.05	2.05	6.50	16.50
22 Jan	35.9	19.2	2.13	2.13	6.89	17.50
23 Jan	35.9	19.3	2.24	2.24	7.20	18.30
24 Jan	36.0	19.3	2.32	2.32	7.52	19.10
25 Jan	36.1	19.4	2.44	2.44	7.80	19.80
26 Jan	36.2	19.4	2.52	2.52	8.11	20.60
27 Jan	36.3	19.5	2.64	2.64	8.39	21.30
28 Jan	36.4	19.5	2.72	2.72	8.82	22.40
29 Jan	36.5	19.6	2.83	2.83	9.21	23.40
30 Jan	36.6	19.7	2.91	2.91	9.61	24.40
31 Jan	36.8	19.7	3.03	3.03	10.00	25.40

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Jun	75.9	52.0	0.00	0.00	0.0
02 Jun	77.0	44.1	0.00	0.00	0.0
03 Jun	84.0	50.0	0.00	0.00	0.0
04 Jun	87.1	50.0	0.00	0.00	0.0
05 Jun	91.0	54.0	0.00	0.00	0.0
06 Jun	90.0	60.1	0.41	0.00	0.0
07 Jun	82.9	62.1	0.00	0.00	0.0
08 Jun	77.0	57.0	0.00	0.00	0.0
09 Jun	82.9	50.0	0.00	0.00	0.0
10 Jun	-	-	-	-	-
11 Jun	-	-	-	-	-
12 Jun	91.9	70.0	0.02	0.00	0.0
13 Jun	-	-	-	-	-
14 Jun	-	-	-	-	-
15 Jun	-	-	-	-	-
16 Jun	-	-	-	-	-
17 Jun	-	-	-	-	-
18 Jun	-	-	-	-	-
19 Jun	-	-	-	-	-
20 Jun	-	-	-	-	-
21 Jun	-	-	-	-	-
22 Jun	-	-	-	-	-
23 Jun	-	-	-	-	-
24 Jun	-	-	-	-	-
25 Jun	-	-	-	-	-
26 Jun	-	-	-	-	-
27 Jun	-	-	-	-	-
28 Jun	-	-	-	-	-
29 Jun	-	-	-	-	-
30 Jun	-	-	-	-	-

	Jun 26	Normal
Average high temperature Av. high temp.	84.0 ºF	36 ºF
Average low temperature Av. low temp.	54.9 ºF	20 ºF
Total precipitation Total precip.	0.43 inch	3.03 inch
Total snowfall Total snowfall	0.00 inch	10 inch

Highest max temperature Highest max temp.	91.9 ºF	-
Lowest max temperature Lowest max temp.	75.9 ºF	-
Highest min temperature Highest min temp.	70.0 ºF	-
Lowest min temperature Lowest min temp.	44.1 ºF	-

Past weather June 2026 incomplete - Missing data

USGS National Map — Open interactive map

Station Data

Monthly averages Allentown
Longitude: -75.4902, Latitude: 40.6084
Average weather Allentown, PA - 18101

Monthly: 1991-2020 normals
History: 2007-2026

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...