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

Naperville Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-7.274999999999998	-11.2		-0.4625000000000004	-5.9
	-8.174999999999999	-6		-1.6500000000000004	-1.9
	-7.843750000000002	-6.3		-1.1874999999999998	0.9
	-8.175	-7.4		-0.9999999999999999	-2
	-8.962499999999999	-3.1		-1.43125	0
	-8.74375	0		-3.2375	2.2
	-9.018749999999999	0.2		-2.08125	1
	-8.731250000000001	0.4		-1.1	7.6
	-8.456249999999999	2.1		-0.21875000000000033	14.3
	-7.41875	-1.7		0.7375000000000003	2
	-5.7	-5.4		2.03125	-0.3
	-6.31875	-2.7		0.2750000000000001	3.3
	-8.943749999999998	-1.1		-1.7625000000000004	5.3
	-8.918750000000001	-6.5		-2.5374999999999996	1.5
Jan.	-8.9125	-9.7		-2.0812500000000003	-5.5
	-7.781249999999999	-5.2		-0.79375	2.2
	-7.774999999999999	-9.5		-0.9187500000000002	-3.2
	-7.574999999999999	-14.1		-0.74375	-7.4
	-9.2875	-16.4		-1.64375	-8.7
	-9.7875	-17.7		-3.0625	-6.4
	-10.362499999999999	-6.9		-3.1937500000000005	-2.6
	-8.512500000000001	-11.2		-0.6312500000000001	-5.3
	-7.325000000000001	-21.3		-1.5187499999999998	-12.3
	-7.299999999999999	-20.1		-0.3062499999999999	-12.7
	-6.612500000000001	-13.2		-0.2437499999999999	-6.7
	-8.2875	-17.1		-1.625	-10.3
	-8.324999999999998	-13.6		-1.3125000000000002	-9.4
	-8	-16.3		-0.9249999999999998	-7.3
	-8.1875	-14.9		-1.0000000000000002	-8.8
	-8.40625	-15.2		-0.7562499999999998	-8.4
	-7.275	-14.3		-0.5812499999999998	-5.1
	-7.362500000000001	-15.8		0.3999999999999999	-3.7
	-8.137499999999998	-7.5		-0.17500000000000004	-2.8
	-8.399999999999999	-7.6		-0.8500000000000001	-3.8
	-8.4625	-11.5		-0.14999999999999986	-1.7
	-8.575	-8.8		-2.1812499999999995	-1.4
	-7.7124999999999995	-5		0.006249999999999645	2.5
	-7.9937499999999995	-11.2		0.1812500000000002	-3
	-8.9125	-6.2		-1.8000000000000007	-3.5
	-8.20625	-4.1		-2.0000000000000004	0.3
	-9.29375	-1.9		-1.76875	3.3
	-9.087500000000002	-1.5		-1.0500000000000003	3.4
	-9.31875	-4		-1.3937500000000003	2.3
	-10.7	-4.9		-1.15	9.4
	-9.018749999999999	-2.6		-0.4124999999999999	1.8
Feb.	-7.918750000000001	-2.9		0.006250000000000228	10.9
	-6.575	-0.2		0.3187499999999998	4.4
	-7.65625	2.9		0.2749999999999999	7.2
	-7.668749999999999	7.2		2.2312499999999997	17.3
	-6.437499999999999	4.1		2.375000000000001	11.8
	-6.018750000000001	0.8		4.10625	9.4
	-3.625	-3		3.15625	2.9
	-3.4625000000000004	-6.3		4.1187499999999995	-2.7
	-4.8374999999999995	-8.5		2.95	-1.3
	-5.2875000000000005	-5.3		2.3	1.3
	-6.175000000000001	-4.1		1.2875	1.3
	-6.531250000000001	-6.1		2.8187499999999996	4.8
	-3.35	-0.3		4.5875	10.7
	-4.66875	-2.6		5.6	3.6
	-4.2124999999999995	-3.6		4.925	-0.6
	-5.1812499999999995	-3.3		2.7625	5.8
	-5.425	1.2		3.54375	4.8
	-4.60625	-1.2		4.2	2.6
	-3.26875	2.7		4.7	8.7
	-3.33125	3.9		6.4625	18.7
	-2.8000000000000003	3.6		6.281250000000002	18
	-1.1875	0.3		7.9625	17
	0.2812499999999999	5.1		9.056249999999999	20
	1.6437499999999998	7.4		8.393749999999999	16.1
	-0.5437500000000001	2.4		7.781249999999999	12.5
	-1.5687499999999999	-1.8		7.95625	6.5
	-0.6250000000000002	1.2		9.39375	6.5
	1.29375	-2.2		10.149999999999999	1.5
Mar.	0.46249999999999986	1.3		9.6375	13
	0.39375000000000016	-7.5		9.987500000000002	0.9
	0.8125	-9.4		11.09375	-2.9
	0.675	-4.5		9.45	7.7
	0.11875000000000013	-0.4		9	10.7
	0.7687500000000002	3.8		9.637500000000001	14.5
	0.8812500000000002	4.4		11.424999999999999	11.3
	1.0499999999999998	3		8.91875	12.9
	1.2625	-1.1		9.7375	6
	1.31875	-2.3		8.23125	8.1
	0.4562499999999998	3		7.04375	16.5
	-0.3874999999999999	8.7		8.89375	21.5
	0.6437499999999999	-1.3		8.775	4.7
	0.7062499999999998	-2.7		10.531249999999998	9.5
	1.55	1.7		10.75625	12.1
	1.4375	8.8		12.275000000000002	20.7
	2.88125	12.3		11.925	19.5
	0.81875	2.6		10.475	4.7
	2.18125	3.9		12.093749999999998	21
	2.78125	5.3		11.587500000000002	12.8
	3.1687499999999997	4.1		13.918750000000001	12.3
	3.23125	1.5		11.6875	13.1
	2.9749999999999996	2		12.918749999999998	10.2
	3.2125	-1.4		12.174999999999997	6
	3.775000000000001	-0.1		12.781249999999998	24
	4.25	10.2		15.093750000000002	24.8
	4.525	6.1		13.393749999999999	11.3
	4.2124999999999995	1.5		14.45	16.8
	5.325000000000001	10.5		15.60625	27.4
	5.94375	16.7		15.71875	28.2
	4.1625	15.5		14.518749999999999	29.6
Apr.	5.575	17.3		14.287500000000001	23.7
	4.562499999999999	13		14.224999999999998	23.5
	3.78125	10.5		14.24375	31.7
	4.4	3.1		14.21875	8.5
	4.0375000000000005	1.3		14.18125	11.5
	4.8875	0.3		14.53125	14.2
	4.36875	8		14.44375	26.9
	4.687500000000001	12.8		14.662500000000001	27
	5.41875	10.7		15.556249999999999	30.3
	6.31875	14.3		16.431250000000002	24.2
	5.4625	7.4		15.106250000000001	20.2
	5.2625	6.1		15.856250000000003	17.1
	4.51875	9.4		14.956249999999999	19.5
	5.45	9.3		15.268749999999999	16.6
	7.112500000000001	6.3		16.30625	15
	7.362499999999999	2.5		15.418750000000001	15.4
	8.29375	3.2		17.41875	12.2
	8.381250000000001	-0.1		16.78125	13
	8.94375	4.8		17.568749999999998	22.3
	8.34375	7.8		18.275000000000002	28.9
	7.74375	10.8		17.5375	19.2
	8.30625	4.2		17.662499999999998	15
	8.575	0.7		20.531249999999996	17.9
	9.6125	5.3		19.11875	20.2
	8.73125	10.2		18.9125	24.4
	8.50625	5.8		18.41875	21
	9.4625	6.4		18.924999999999997	18.5
	9.9125	4.8		18.887499999999996	27.7
	9.36875	9		20.68125	20.6
	9.718749999999998	3.5		20.275000000000002	23.3
May	9.98125	10.7		19.849999999999998	25.1
	10.800000000000002	17.2		21.26875	31.4
	10.4	17.6		19.24375	32.3
	10.06875	20.9		20.9	28.1
	10.931249999999999	12.2		20.806250000000002	27.3
	11.80625	8.3		21.106250000000003	15.6
	12.606250000000001	8.3		21.162499999999994	21.2
	12.475000000000003	10.3		22.41875	24.3
	12.381249999999998	13.9		22.64375	25.6
	11.731250000000001	13.9		22.825	27.2
	14.350000000000001	13.3		24.325000000000003	31.8
	13.93125	15.5		23.55	33.7
	13.93125	14.5		23.237499999999997	34
	14.2625	14		23.556249999999995	28.3
	15.23125	10.7		24.675	32.7
	14.968749999999998	14.6		24.931250000000002	29.4
	14.700000000000003	11.5		24.0375	31
	13.118750000000002	12.8		23.718749999999993	25.9
	13.174999999999999	12.2		23.4125	27.9
	14.09375	10.7		25.437500000000004	31.5
	15.256249999999998	14.5		25.45	33.3
	15.15625	20.6		25.06875	25.3
	14.51875	20.5		24.456249999999997	34.9
	14.68125	19.5		24.34375	32.9
	14.337499999999999	18.4		24.281250000000004	30.7
	14.656250000000002	21.3		25.718749999999996	31.8
	15.474999999999998	20.6		25.4625	33.3
	15.562499999999998	18.7		25.556250000000002	29
	16.125	15.4		25.7625	27.9
	14.975	17		24.818749999999998	32
	15.60625	13.7		25.73125	21.5
Jun.	16.55	11.4		26.7625	26.9
	16.900000000000002	14.8		27.131249999999998	25
	17.25	12.9		28.506249999999998	19.2
	17.51875	15.4		27.85	23.1
	17.01875	13.7		27.14375	27.2
	17.61875	15		28.062499999999996	25.6
	18.6375	14.9		28.674999999999997	23.2
	18.88125	14		27.9125	24.9
	18.625	12.6		27.662499999999998	25.3
	17.8875	14.3		26.787499999999998	24.7
	17.49375	16.3		26.499999999999996	28.2
	17.9875	16.1		26.31875	23.5
	17.7875	15		27.1375	29.1
	17.50625	18.1		27.7375	32.1
	18.7125	23.9		27.606250000000003	36.6
	19.58125	24.9		28.40625	37
	17.856250000000003	24.4		26.56875	37.3
	17.41875	25.1		26.15	37.7
	17.124999999999996	22.4		27.80625	35.3
	18.6875	20.7		29.30625	31
	20.087500000000002	19.2		29.762500000000003	25.7
	19.737500000000004	18.8		28.706250000000008	28.6
	19.062500000000004	18.6		28.525	31.9
	18.462500000000002	19.1		27.3125	32.8
	18.275	21.3		27.6	33
	18.224999999999998	21.5		28.1	31.7
	18.85625	18.5		27.775000000000002	31.1
	19.112499999999997	19.4		28.443749999999998	33.5
	18.931250000000002	19.1		27.75625	35.3
	18.462500000000002	20.8		28.1625	37.3
Jul.	19.24375	22.8		27.9375	37
	19.262500000000003	22.4		27.418750000000003	36.8
	19.093749999999996	23.6		28.250000000000004	34.4
	19.318749999999998	22.2		29.1625	33.8
	20.15	19		29.675000000000004	31
	20.224999999999998	16.5		28.962500000000002	30
	19.493750000000002	19.9		27.95	32.4
	19.375	15.3		28.499999999999996	23.7
	19.424999999999997	12.9		28.9125	28.4
	19.43125	16		28.787500000000005	28.4
	18.825	16		28.7625	26.8
	18.849999999999998	21.8		28.493750000000002	35.1
	19.2	22.2		28.25625	36.3
	19.349999999999998	17.7		28.056249999999995	28.9
	18.537499999999994	15.9		27.224999999999998	30.8
	17.975	15.5		27.200000000000003	33.5
	18.075	18.9		27.268749999999994	30.6
	18.037500000000005	19		28.018750000000004	24.1
	18.275000000000002	18.6		28.849999999999998	25
	18.843749999999996	16.2		28.506249999999998	30.9
	18.606250000000003	18.4		27.78125	32.2
	18.681250000000002	20.9		27.737499999999997	31
	18.887500000000003	18		27.4375	28.2
	18.6125	18.9		26.906249999999996	32.4
	18.5375	20.6		27.65	32.6
	18.0625	17.3		27.55	34.9
	18.5	21.1		27.30625	33.2
	18.549999999999997	22.5		27.343750000000004	30.1
	18.48125	21.1		27.368749999999995	29.8
	18.025	18.8		27.118750000000002	28.4
	17.106249999999996	20.3		26.137499999999996	27.3
Aug.	17.05	21.4		27.037499999999998	26.9
	17.84375			27.8
	18.412499999999998		19.4	26.6875		27.3
	17.812500000000004		17.9	27.00625		27.9
	18.206249999999997		18.4	27.8125		25.6
	18.5125		16.9	27.49375		26
	18.025		16.3	26.69375		19.2
	17.10625		15.5	26.768749999999997		26
	16.856250000000003		19.2	27.45		27.6
	17.425		17.7	27.78125		28.1
	17.556250000000002		18	27.662500000000005		27.6
	18.293749999999992		18.2	27.493750000000006		26.9
	18.156250000000004		18	27.975000000000005		27.7
	18.41875		18.3	27.5		26.9
	18.44375		17.7	27.875		27
	17.79375		17.5	26.531249999999996		26.3
	17.69375		17	27.4625		26.6
	18.068749999999998		17.4	27.331250000000004		26.2
	18		17.6	26.89375		27
	17.349999999999998		16.9	27.087499999999995		27.5
	16.675		16.3	25.993749999999995		25.8
	15.7375		16.2	25.075		25.5
	16.0375		15.8	25.4375		24.9
	15.618750000000002		15.3	24.91875		24.3
	15.006250000000001		14.6	23.475		22.9
	14.6		14.8	24.05		24.5
	14.725		14.7	25.51875		25.4
	14.706250000000002		14.9	24.156249999999996		24.8
	13.96875		14.4	24.4		24.7
	14.4625		14.5	24.0875		23.8
	13.9125		13.8	25.225		25.5
Sep.	14.76875		14.9	24.475		25
	15.037500000000001		15.2	24.900000000000002		24.8
	14.99375			25.9625
	15.55			25.09375
	14.987499999999999			24.212500000000002
	15.275			26.181250000000002
	15.418750000000001			24.062500000000004
	13.9875			22.943749999999998
	13.600000000000001			23.081249999999997
	13.14375			22.93125
	13.85			22.562499999999996
	13.28125			23.162499999999998
	13.1125			22.3625
	12.693749999999996			22.012500000000003
	11.912500000000001			21.218750000000004
	12.25625			21.20625
	12.94375			21.44375
	12.79375			20.8
	11.7625			21
	11.45			20.28125
	11.375			21.21875
	11.48125			20.293749999999996
	10.524999999999999			19.556250000000002
	9.775			20.381250000000005
	10.218749999999998			21.125000000000004
	10.137500000000001			20.91875
	10.1375			20.162499999999998
	10.08125			19.04375
	9.2125			16.95625
	8.53125			16.65625
Oct.	7.9437500000000005			15.881250000000001
	6.80625			14.6125
	6.606249999999999			14.749999999999998
	6.63125			16.56875
	7.2125			15.693749999999998
	6.91875			16.8625
	6.775000000000001			15.937500000000002
	6.38125			15.881249999999998
	6.95			16.362499999999997
	8.1			16.537499999999998
	7.2625			15.137500000000001
	6.95625			14.5125
	5.35625			13.00625
	4.2875000000000005			11.1125
	3.9125			11.425
	5.25			13.062500000000002
	3.9625			10.574999999999998
	2.5687500000000005			11.481250000000001
	3.9499999999999997			12.55625
	3.5687500000000005			12.9375
	6.362499999999999			13.481250000000001
	5.2625			13.10625
	5.1812499999999995			13.906249999999998
	3.7375000000000003			11.050000000000002
	3.5625			11.187500000000002
	3.05625			12.40625
	3.1937499999999996			11.137500000000003
	1.7812500000000004			11.51875
	0.5312500000000002			7.3374999999999995
	-0.63125			7.125000000000001
	-0.3125			7.28125
Nov.	0.5875			8.44375
	1.40625			8.53125
	1.1375000000000002			8.4125
	-0.05625000000000002			6.6187499999999995
	-0.8999999999999999			7.250000000000001
	0.33125000000000004			7.43125
	0.3624999999999999			7.5875
	-1.21875			6.218750000000001
	-0.28750000000000003			6.7125
	-0.16249999999999964			6.75625
	-0.8624999999999998			6.0375000000000005
	-1.2937499999999997			5.6000000000000005
	-2.98125			4.000000000000001
	-3.0937499999999996			3.39375
	-1.8312499999999998			5.3687499999999995
	-1.475			5.8187500000000005
	-1.78125			3.8562499999999993
	-1.59375			5.04375
	-1.8625			4.887500000000001
	-1.0250000000000001			5.387500000000001
	-2.2750000000000004			3.8874999999999997
	-4.55625			1.5437500000000002
	-4.6625			0.6625
	-3.0500000000000003			2.8625
	-3.50625			2.7625
	-3.5624999999999996			2.36875
	-3.975			2.575
	-4.3375			2.31875
	-3.8875			2.825
	-4.1125			3.425
Dec.	-3.7250000000000005			3.24375
	-3.3249999999999997			2.7437500000000004
	-3.79375			1.69375
	-5.437500000000001			0.08750000000000002
	-5.5249999999999995			1.4125
	-4.2			2.0187500000000003
	-2.2			3.2937499999999997
	-3.6374999999999993			2.3124999999999996
	-4.5			2.15
	-3.8625			2.56875
	-3.1375			2.16875
	-3.6937500000000005			2.18125
	-3.38125			3.6999999999999997
	-3.875			2.63125
	-3.5			3.0875
	-5.468750000000001			1.025
	-5.553333333333333			0.12000000000000008

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

38°C

Highest Temp

2 Jul. 26

-21°C

Lowest Temp

23 Jan. 26

Seasonal Breakdown

Hottest MonthJuly32.26°C

Coldest MonthJanuary-9.21°C

Wettest MonthAugust8.55mm

Windiest MonthApril26.04km/h

Naperville 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 Naperville historically?

July is historically Naperville's hottest month, with average maximum temperatures around 28°C. During peak heatwave events, the highest recorded temperatures have reached 39°C on 2023-08-24.

2. What is the coldest month in Naperville historically?

January is Naperville's coldest month, with average minimum temperatures around -8°C. The all-time record low of -33°C was recorded on 2019-01-31.

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

Naperville's average annual rainfall is approximately 1186.7mm, based on records spanning 17 years.

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

Naperville historically records approximately 175.5 rainy days per year. June has the highest number of rain days at an average of 17.7 days.

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

The all-time highest temperature recorded in Naperville is 39°C on 2023-08-24.

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

The all-time lowest temperature recorded in Naperville is -33°C on 2019-01-31.

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

Naperville experiences its strongest winds during April. The historic gust record of 51.2 kph was recorded on 2016-02-19.

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

Usually, Naperville's humidity peaks in January at around 81.8% and drops to its lowest in October at approximately 69.2%.

Recent Blogs On Weather

See all blogs

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

Naperville Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

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

World Top Hottest Cities Belong to India - April 2026

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

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

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

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

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

Naperville Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

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

World Top Hottest Cities Belong to India - April 2026

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

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

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

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

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