Allentown Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Allentown Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-1.5937500000000002	-5.1		5.0062500000000005	-1.2
	-3.1625000000000005	-6.7		4.11875	0.1
	-4.081250000000001	-7.4		1.6999999999999997	-1.5
	-4.4625	-4.5		3.125	1.2
	-4.449999999999999	-5.1		2.4499999999999997	-1.4
	-5.0375	-1.8		2.0187499999999994	2.3
	-6.71875	0.8		-0.031249999999999806	5.6
	-6.675000000000001	-1.9		0.1562500000000001	4.8
	-5.4125000000000005	-1.2		2.0187500000000003	3.3
	-4.8812500000000005	2.2		3.5687500000000005	6.6
	-3.5749999999999997	-1.1		4.0375	4.7
	-1.40625	-2.1		6.3812500000000005	3.4
	-3.7000000000000006	-3.2		5.543749999999999	5.3
	-5.012499999999999	1.2		2.1750000000000003	6.5
Jan.	-4.656250000000001	-5.8		2.1875	3.2
	-4.800000000000002	-6.4		3.0812500000000003	-0.6
	-4.512499999999999	-2.9		1.9000000000000001	1.1
	-4.525	-5		2.4624999999999995	0.2
	-4.3875	-9.1		2.74375	-1.4
	-5.662500000000001	-12.6		1.93125	-4.9
	-7.3375	-12.8		-0.34374999999999994	-1.3
	-8.29375	-4.5		-0.31249999999999967	3.1
	-6.3500000000000005	-8.2		1.2625	-0.7
	-5.912499999999999	-14.3		1.6625	-9.2
	-5.1375	-10.8		2.84375	-9.5
	-4.475	-9.3		2.025	-3.1
	-4.74375	-15.7		3.6937499999999996	-8.7
	-5.168749999999999	-14		1.475	-8.1
	-5.643749999999999	-16.8		1.25	-7.6
	-7.443750000000001	-19.1		1.16875	-8.1
	-7.074999999999998	-18.9		1.7	-6.5
	-5.0687500000000005	-12.5		3.2687500000000003	-5.9
	-5.268749999999999	-11.1		2.9812499999999997	0.6
	-5.35	-14.5		2.9625	-1.4
	-5.762500000000002	-16.7		4.1875	-2.6
	-4.8625	-13.1		3.8249999999999997	-2.6
	-5.668749999999999	-11.7		2.8249999999999997	-3.3
	-4.91875	-16.3		4.23125	-3.3
	-5.256249999999999	-17.2		2.9625000000000004	-8.1
	-6.78125	-15.5		2.725	-3.9
	-4.568750000000001	-10		2.725	-0.9
	-5.19375	-2.6		3.175	1.1
	-6.106249999999999	-6.2		2.325	-0.6
	-5.7437499999999995	-9.3		1.96875	2.2
	-5.75625	-5.8		2.6375	4.7
Feb.	-4.96875	-1.7		3.8500000000000005	1.5
	-3.74375	-2.7		4.825	4
	-4.8500000000000005	0.2		3.4937500000000004	4.9
	-5.11875	0.9		5.1375	1.9
	-4.793750000000001	0.5		3.7125000000000012	2.4
	-4.6875	0.3		4.14375	2
	-4.112500000000001	0		6.30625	4.2
	-2.9437499999999996	-1.3		6.26875	3
	-2.0687500000000005	-2.9		7.14375	0
	-2.3312500000000003	-8.1		7.0375	0.8
	-3.2062500000000003	-5.3		5.95625	5.3
	-3.5687499999999996	-3		5.08125	3.5
	-3.462500000000001	-4		6.487500000000001	5.2
	-3.5312499999999996	-3.1		6.26875	1.9
	-2.86875	-4.1		6.6125	-0.1
	-2.8875	-8		6.2124999999999995	1.1
	-4.499999999999999	-3.9		4.5875	1.5
	-3.23125	-0.7		5.33125	6.2
	-4.131250000000001	1.3		6.1875	4.2
	-4.237500000000001	0.6		5.675	4.7
	-3.21875	1.3		6.5	4.9
	-2.2375	5.6		8.0375	16.2
	-0.6875	2.8		10.05625	19.4
	-0.5937500000000002	3.1		10.91875	20.7
	0.6812499999999999	10.2		11.018749999999999	17.4
	-0.85625	0		8.90625	18.1
	-1.3312499999999998	-3.6		7.468749999999999	6.3
	0.17500000000000002	0.3		9.443749999999998	9.2
Mar.	0.7124999999999999	-0.4		9.575000000000001	5.2
	0.6312500000000001	5		9.65	16.7
	-0.012499999999999997	-2.5		10.306249999999997	6.8
	0.70625	-4.8		10.88125	2.1
	0.3249999999999999	-2		9.9625	7.1
	0.04375000000000007	-3.2		9.65	11.9
	1.0625	1.7		11.124999999999998	10.6
	0.5249999999999999	5.1		9.962499999999999	18.8
	-0.65	0.5		8.781250000000002	10.3
	0.80625	-1.8		10.425	7
	1.3625	-0.1		10.668750000000001	10.6
	0.55	4.2		10.00625	15.1
	-1.3937499999999998	2.5		9.718749999999998	15.8
	0.375	-3.3		10.100000000000001	5.6
	1.80625	-2.2		11.875	10.9
	1.4625	3.1		11.362499999999999	14.9
	1.6687500000000002	10.7		12.3	21.9
	2.11875	12.1		12.031249999999998	25
	1.38125	5.8		11.50625	9
	2.4624999999999995	4.8		12.812499999999998	20.6
	3.4687500000000004	7.6		13.9375	29.4
	3.3875	5.2		13.487499999999999	15.1
	3.375	1.7		14.068750000000001	12.5
	3.6125	0.1		12.737500000000002	12.4
	3.925	-0.9		13.418750000000001	14.3
	3.1937499999999996	-0.8		14.0125	17.9
	3.7499999999999996	3.6		14.6375	24.8
	4.6375	7.8		15.44375	18.9
	5.1937500000000005	3.1		15.406249999999998	21.7
	6.281249999999999	9.8		17.512500000000003	29.1
	6.825000000000001	15.2		18.25	31.6
Apr.	4.999999999999999	17.1		16.45625	33.2
	5.7875	18.9		16.106250000000003	34.7
	5.3125	17.3		14.937500000000002	27.2
	4.306250000000001	13.2		15.531249999999998	26
	6.156249999999999	4.3		15.618749999999999	12.5
	5.762500000000001	1.2		17.275	9.9
	5.212500000000001	-1.8		16.53125	14.6
	5.0874999999999995	6		16.25	17.1
	4.5625	5.8		15.562499999999998	27.3
	4.6812499999999995	8.4		16.59375	23.5
	6.1875	5.3		15.837499999999999	11.8
	6.41875	4.9		16.943749999999998	13.6
	5.7250000000000005	4.6		16.275	23.7
	6.1	6.6		16.293750000000003	20.5
	6.137500000000001	9.6		16.562499999999996	16.7
	6.756250000000001	8.8		17.29375	15.1
	7.38125	4.6		19.499999999999996	17.7
	9.6	6.7		20.60625	14.7
	9.868750000000002	4.8		19.993750000000002	18.5
	9.45	5.7		19.924999999999994	25.3
	8.781249999999998	13.3		18.2	30.8
	8.46875	12.7		17.506249999999998	22.4
	8.1125	9		17.65625	18.2
	8.756250000000001	6		18.875	17.7
	8.26875	10.5		17.562499999999996	21.2
	8.337499999999997	8.7		19.993750000000002	23.9
	8.243749999999999	8		18.368749999999995	18.9
	7.98125	3.8		19.3375	22.4
	8.162500000000001	10.2		16.862499999999997	25
	8.35	8.5		19.0625	15.8
May	9.96875	6.1		21.662499999999998	19.8
	11.23125	8.2		21.025000000000002	29.4
	11.14375	16.3		21.437499999999996	33.3
	10.281250000000002	17.9		20.53125	36.9
	10.25	20.6		21.462500000000006	37.2
	10.949999999999998	14.9		22.043750000000003	28.7
	10.956250000000002	8.5		22.693749999999998	20.3
	12.156250000000002	10.7		21.462500000000006	23.4
	12.037499999999998	9.6		22.106250000000003	13.4
	11.762499999999998	9.6		22.25625	13.9
	11.243750000000002	13.3		22.95625	24.4
	12.99375	12.8		25.59375	31.2
	13.90625	18.8		25.631249999999998	31
	13.925	14.3		22.925	25.6
	14.25625	10.6		24.693749999999998	27.5
	15.006249999999998	9.9		25.281250000000004	19.7
	14.793750000000001	8.3		26.09375	25.3
	13.531249999999998	12.8		25.16875	24.9
	13.1125	8.8		24.46875	25.3
	12.593750000000002	11.4		23.187499999999996	30.2
	12.668750000000001	12.9		23.843750000000004	34.1
	13.2875	15.1		25.225	35.6
	13.94375	17.2		24.425	34.9
	13.700000000000001	17.1		23.724999999999998	29.8
	13.562500000000002	15.2		24.66875	26.3
	13.506249999999998	12.6		24.331250000000008	30.2
	13.837500000000002	19.5		24.71875	30
	14.562500000000004	20		24.9125	36.7
	14.906250000000002	20.8		26.08125	35.2
	16.09375	18.2		25.106250000000003	33
	14.6625	17.4		24.75625	34.8
Jun.	13.868750000000002	16.9		25.212500000000002	26.2
	13.918750000000001	11.7		24.556249999999995	27.8
	15.143749999999999	13.5		25.593749999999996	29.5
	15.237499999999999	20.3		26.4625	33.4
	15.812499999999998	17.7		27.425000000000004	28.9
	15.931250000000004	15.9		27.231250000000006	30.1
	16.8375	14.6		27.987499999999994	31.1
	16.75	16.6		27.65625	28.8
	17.762500000000003	17.2		27.98125	24
	17.64375	13.1		28.731250000000003	29.9
	17.274999999999995	14.9		28.162499999999998	30
	16.575	19.8		27.468749999999996	32
	16.75625	20.4		26.525000000000002	28.3
	16.96875	17.6		27.525000000000002	29.8
	17.287499999999998	17.3		28.187499999999996	34.2
	17.306250000000002	19.9		29.256249999999998	35.5
	17.90625	21.5		28.94375	40.1
	17.59375	24.3		28.825	42.4
	17.668749999999996	24		28.775000000000002	41.4
	17.275000000000002	22.4		28.781249999999996	38.6
	17.456249999999997	21		29.981250000000003	29.9
	19.268750000000004	18.9		30.7375	22.7
	19.9	18.1		30.950000000000003	23.1
	19.825000000000003	17.6		29.849999999999998	31.4
	19.24375	20.8		29.893750000000004	29.5
	18.5875	20.9		28.875	32.6
	18.43125	20.2		29.100000000000005	30.7
	18.66875	18.9		29.19375	32.3
	19.01875	18.6		29.287499999999998	32.1
	19.249999999999996	19.5		28.806249999999995	36.4
Jul.	19.200000000000003	22.2		29.58125	40
	19.175	21.4		30.500000000000004	36.3
	19.118750000000002	18.7		30.306250000000002	35.1
	19.55625	18.5		30.206249999999997	29.9
	19.36875	18.8		31.0625	29.4
	19.88125	14.1		30.606250000000003	30.9
	19.843750000000004	20.1		29.225	31.8
	18.812500000000004	19.4		29.56875	29.8
	18.95	15.5		29.4625	27.8
	19.299999999999997	13.8		29.625	29.8
	18.868750000000002	15.5		28.731250000000003	30.1
	18.2125	15.5		29.375000000000004	31.3
	18.35625	19		29.89375	33.5
	18.90625	18.2		30.362499999999997	29
	19.09375	17.8		29.499999999999993	28.3
	17.98125	17.5		29.14375	29.6
	17.15625	17.7		28.606250000000006	31
	18.112499999999997	17.8		27.26875	31.9
	17.912499999999998	22.5		28.124999999999996	31.5
	17.843749999999993	20.3		28.4625	30.4
	18.53125	15.9		29.624999999999993	30.2
	17.8625	19.2		28.8875	30.1
	17.89375	22.1		28.818749999999998	34
	18.6625	22.6		28.2375	34
	17.868750000000002	20.2		28.0625	33.4
	17.9625	21.7		28.90625	33.9
	18.400000000000002	18.7		28.818749999999998	31.5
	18.51875	20.2		28.6625	32.1
	18.35625	20.4		28.537499999999998	31.7
	18.54375	20.9		28	32.2
	17.4625	19.5		26.687499999999996	31.5
Aug.	17.599999999999998	17.5		26.968750000000004	29.4
	17.49375	8.3		28.356249999999996	23.4
	17.6125	18.7		28.30625	31.1
	17.94375	20.9		27.462500000000002	31.9
	17.5		18.5	27.518749999999997		28.6
	17.31875		19.6	27.799999999999997		26.4
	16.849999999999998		18.1	27.46875		26.5
	17.243750000000002		17.2	26.943749999999994		24.4
	15.3		16.6	25.862499999999997		20.1
	15.6625		15.6	26.924999999999997		24
	16.61875		15.9	27.637500000000003		26.5
	16.54375		16.7	28.362499999999997		28.4
	16.843749999999996		17	27.974999999999998		28.2
	16.6		16.8	27.337500000000002		27.1
	17.1		16.8	27.931250000000002		26.8
	16.85625		16.2	27.887500000000003		27.6
	16.46875		16.3	27.08125		27.1
	16.04375		16.3	26.775		26.7
	16.7625		16.1	27.6		27
	16.543750000000003		15.9	27.256249999999998		26.9
	16.525		16.1	27.299999999999997		27.3
	16.593749999999996		16.4	26.4375		26.7
	16.09375		16.3	25.912499999999998		26
	15.137500000000005		15.3	25.525000000000002		25.6
	15.443749999999998		15	25.78125		25.6
	14.35625		14.6	24.912499999999998		24.5
	14.843749999999998		14.8	25.031250000000004		24.6
	15.65625		14.8	25.775		25.1
	15.312500000000004		15.1	25.29375		24.9
	14.51875		14.6	24.287499999999998		24.6
	13.712499999999999		14.1	24.8375		24.9
Sep.	13.200000000000001		12.6	25.3125		24.6
	12.400000000000002		12.2	24.4625		23.9
	12.118749999999999		12.5	22.925000000000004		22.8
	12.799999999999999		13.6	24.174999999999997		23.7
	13.437499999999998			24.21875
	12.518749999999999			23.18125
	12.500000000000002			24.13125
	13.587499999999999			23.83125
	13.031250000000002			23.28125
	12.518749999999999			23.69375
	13.318749999999998			22.55625
	13.13125			23.1125
	13.000000000000002			23.381249999999998
	13.649999999999999			23.056250000000002
	13.262500000000001			22.2375
	12.718750000000002			20.775000000000002
	11.2			20.018749999999997
	11.281250000000002			20.381249999999998
	10.70625			18.95625
	11.11875			20.875000000000004
	10.7375			20.06875
	11.387500000000001			21.48125
	11.5			21.98125
	10.8625			19.70625
	9.875000000000002			19.068749999999998
	9.0375			19.075
	9.825000000000001			19.312500000000004
	8.93125			18.35
	9.1625			17.343750000000004
	9.43125			18.181250000000002
Oct.	8.88125			18.637499999999996
	7.33125			17.2
	6.725			15.7875
	5.84375			15.543749999999998
	5.731250000000001			16.65625
	7.54375			17.425
	7.337500000000001			18.11875
	7.78125			17.05
	7.231250000000001			16.174999999999997
	6.8500000000000005			16.756249999999998
	7.1375			16.712500000000002
	7.05			14.86875
	6.85			15.425000000000002
	6.3			15.5875
	6.14375			13.075000000000001
	5.175			13.46875
	4.84375			13.9
	4.8			13.4
	4.55625			13.975000000000001
	3.2937499999999997			13.24375
	3.49375			13.212499999999999
	4.468749999999999			13.28125
	4.8999999999999995			14.000000000000002
	4.9125000000000005			13.962500000000002
	3.1812499999999995			12.137499999999998
	2.70625			12.7125
	2.5875000000000004			12.006249999999998
	2.5			12.31875
	2.825			12.681249999999999
	1.4750000000000003			9.831249999999999
	0.41250000000000003			9.106250000000001
Nov.	0.7			9.15
	2.13125			10.33125
	1.3437500000000004			9.35625
	1.075			9.412499999999998
	0.5499999999999999			8.98125
	0.2375			8.737499999999999
	0.35			8.46875
	0.9687500000000001			8.631250000000001
	-0.02499999999999991			7.6125
	-0.25625			8.125
	0.95			9.056249999999999
	0.725			8.806249999999999
	0.525			9.04375
	0.11249999999999996			6.937499999999999
	-0.7249999999999999			6.33125
	-0.89375			7.0249999999999995
	0.11874999999999993			8.143749999999999
	0.4312500000000002			7.8687499999999995
	0.2499999999999999			7.112499999999999
	-0.64375			6.4624999999999995
	0.28125000000000017			6.918750000000001
	0.21875000000000003			7.85
	-1.60625			4.6000000000000005
	-2.6625			3.55
	-1.6875			4.79375
	-1.325			4.9750000000000005
	-1.2562499999999996			5.6499999999999995
	-1.99375			5.7625
	-2.55625			5.2875000000000005
	-1.55625			4.956250000000001
Dec.	-1.9312500000000001			5.01875
	-2.225			4.16875
	-1.8249999999999997			4.58125
	-2.3249999999999997			4.468750000000001
	-3.65625			4.1499999999999995
	-3.5000000000000004			3.4499999999999997
	-1.88125			5.2125
	-0.5562499999999999			6.66875
	-1.4375			6.468749999999999
	-2.04375			4.48125
	-2.1125			5
	-2.5125			4.599999999999999
	-2.54375			3.65
	-1.6499999999999997			5.5625
	-1.9562499999999998			4.59375
	-2.0687499999999996			4.2625
	-1.7133333333333332			4.553333333333333

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

42°C

Highest Temp

2 Jul. 26

-19°C

Lowest Temp

30 Jan. 26

Seasonal Breakdown

Hottest MonthJuly32.15°C

Coldest MonthJanuary-7.16°C

Wettest MonthJuly7.77mm

Windiest MonthJanuary21.25km/h

Allentown Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Allentown historically?

July is historically Allentown's hottest month, with average maximum temperatures around 30°C. During peak heatwave events, the highest recorded temperatures have reached 42°C on 2026-07-02.

2. What is the coldest month in Allentown historically?

January is Allentown's coldest month, with average minimum temperatures around -5°C. The all-time record low of -23°C was recorded on 2015-02-24.

3. What is the average annual rainfall in Allentown over the past 17 years?

Allentown's average annual rainfall is approximately 1322.6mm, based on records spanning 17 years.

4. How many rainy days does Allentown experience on average per year?

Allentown historically records approximately 172.7 rainy days per year. July has the highest number of rain days at an average of 16.7 days.

5. What is the all-time highest temperature ever recorded in Allentown?

The all-time highest temperature recorded in Allentown is 42°C on 2026-07-02.

6. What is the all-time lowest temperature ever recorded in Allentown?

The all-time lowest temperature recorded in Allentown is -23°C on 2015-02-24.

7. What is the windiest time of year in Allentown historically?

Allentown experiences its strongest winds during March. The historic gust record of 53.2 kph was recorded on 2012-10-29.

8. What is the highest and lowest humidity in Allentown during a year?

Usually, Allentown's humidity peaks in February at around 80.5% and drops to its lowest in April at approximately 73.9%.

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Allentown Historic Weather RecordsAnalyse hottest, coldest, windiest & wettest days

Allentown Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

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World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

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Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

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Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

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Allentown Historic Weather Records
Analyse hottest, coldest, windiest & wettest days