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

Duluth Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-15.299999999999999	-17.3		-7.856250000000001	-10.3
	-14.25	-14.7		-7.793749999999999	-7.4
	-14.30625	-11		-6.1	-5.9
	-14.012500000000003	-12.6		-6.7625	-6.8
	-15.031249999999998	-13		-7.531249999999999	-1.9
	-14.356250000000001	-3.1		-8.025	0.4
	-14.062499999999998	-5.2		-7.762500000000001	-0.4
	-14.4125	-3.1		-7.074999999999999	-1.2
	-13.899999999999997	-5.4		-6.331249999999999	-0.6
	-11.9625	-8		-5.73125	-3.8
	-12.349999999999998	-10.3		-4.925000000000001	-5
	-13.406250000000002	-5.7		-6.956250000000001	-0.6
	-14.862499999999999	-2.9		-8.293750000000001	1.9
	-13.4625	-15.3		-7.006249999999999	-8.8
Jan.	-13.13125	-14.8		-5.44375	-8.4
	-13.487500000000002	-12.6		-6.75625	-1.6
	-13.09375	-17.9		-6.2375	-12.9
	-13.8625	-17.7		-6.4750000000000005	-12.5
	-15.162499999999998	-22		-8.524999999999999	-17.3
	-16.75	-22.1		-9.0625	-12.3
	-16.1375	-15		-8.2375	-8.3
	-13.0375	-23.4		-7.093749999999999	-15.4
	-12.8375	-29		-6.48125	-21.7
	-12.206249999999999	-27.1		-4.6937500000000005	-17.6
	-11.50625	-23.2		-5.81875	-14.7
	-12.700000000000001	-24.6		-5.137499999999999	-14.6
	-12.881249999999996	-18.7		-5.5625	-12
	-14.04375	-19.4		-7.2749999999999995	-13.4
	-15.324999999999998	-18.8		-6.981250000000001	-12.7
	-14.368750000000002	-20.9		-6.85	-9.4
	-13.3625	-18.4		-6.268750000000001	-4.5
	-14.612499999999999	-12.8		-7.55625	-5.4
	-14.581250000000002	-14.3		-7.525000000000001	-7.3
	-15.9375	-15.9		-7.437499999999999	-7.7
	-15.737499999999999	-14.9		-6.4437500000000005	-3.5
	-14.0875	-9		-6.3500000000000005	0.7
	-12.674999999999997	-11.2		-5.937499999999999	-0.5
	-13.381250000000001	-16.3		-6.6499999999999995	-8.5
	-15.024999999999999	-9.8		-7.343750000000001	-2.3
	-15.75625	-5.2		-8.10625	0.3
	-16.093750000000004	-4.8		-8.03125	-0.4
	-15.49375	-7.7		-6.6625	1.1
	-15.643749999999999	-10.9		-7.7375	-1.5
	-15.03125	-5.5		-6.343750000000001	-0.5
	-13.481250000000001	-5		-5.6812499999999995	-0.4
Feb.	-12.862499999999999	-5.8		-5.331249999999999	-2.6
	-14.125000000000002	-4.8		-6.8374999999999995	0.8
	-13.587500000000002	-5.7		-5.2124999999999995	-3.9
	-12.6	-3.8		-3.96875	-1.9
	-12.825000000000001	-4.1		-5.3875	-0.7
	-11.0625	-10.4		-3.11875	-2.7
	-10.7	-10.3		-3.5187500000000003	-2.9
	-10.756250000000001	-14.1		-3.75	-8.9
	-9.712499999999999	-17.4		-2.4812499999999997	-9.6
	-11.625000000000002	-10.9		-3.6625	-2.5
	-12.050000000000004	-14.7		-5.343749999999999	-6.9
	-12.287499999999998	-14.2		-3.28125	4.8
	-10.65625	-4.2		-2.9562500000000003	3.8
	-10.487499999999999	-14.6		-3.5749999999999993	-7.5
	-11.73125	-16.2		-4.137499999999999	-5.7
	-12.412500000000001	-11.8		-3.1625000000000005	-1.3
	-11.075000000000001	-2.6		-2.90625	1.9
	-8.9625	-2.3		-2.4625000000000004	3
	-8.781249999999998	-2.1		-2.34375	1.2
	-7.749999999999999	-5.5		-0.6000000000000002	0.7
	-7.406249999999999	-1.9		0.16250000000000006	5.7
	-6.15625	0.1		1.7249999999999999	9.2
	-4.9875	2.3		2.5812500000000003	6.5
	-5.949999999999998	-3.2		0.8125	0.6
	-6.49375	-4.1		0.5937499999999999	2
	-6.362500000000001	-4.2		1.80625	3.9
	-3.9750000000000005	-5.7		3.49375	1.8
	-4.0687500000000005	-10.4		4.05625	1.3
Mar.	-4.168749999999999	-6.2		3.4625000000000004	-1.6
	-4.5249999999999995	-13.3		2.48125	-5.1
	-3.7749999999999995	-14.5		3.7750000000000004	-5.7
	-3.54375	-9.3		2.5	5.1
	-4.575	1.7		3.6937500000000005	6.1
	-2.89375	0.5		3.9749999999999996	7.7
	-4.175000000000001	0		2.46875	2.7
	-5.249999999999999	-2.3		1.64375	2.4
	-4.175	-3.5		1.88125	3.4
	-4.393749999999999	-0.6		2.2375	2.6
	-5.025	-2		1.8125	8.9
	-4.6812499999999995	-1.7		2.15625	5
	-4.03125	-4		2.9562500000000007	0.6
	-4.6375	-7.1		3.55	8.5
	-4.1312500000000005	-2.8		3.6999999999999997	1.5
	-3.25625	-2.9		4.506249999999999	0.7
	-2.2625000000000006	-1.1		3.7624999999999993	5.8
	-3.7125	-3.6		4.475	0.9
	-2.4000000000000004	-2		5.125	0.5
	-1.8249999999999997	-2.2		4.18125	1
	-1.8562499999999997	-2.7		4.89375	1.1
	-2.7249999999999996	-1.8		4.706249999999999	5.8
	-1.6749999999999998	-5.9		4.393750000000001	-2.2
	-2.3750000000000004	-8.1		4.512499999999999	5.5
	-1.2374999999999998	-0.9		6.0625	7.6
	-0.7750000000000001	0.5		6.337499999999999	5
	-1.1749999999999996	-2.1		6.08125	11.7
	-0.3875	-2.3		8.39375	8.6
	0.69375	2.9		8.056250000000002	10.4
	0.0124999999999999	6.3		6.412499999999999	9.9
	-1.23125	2.8		6.049999999999999	4.9
Apr.	-0.44375	1.7		7.0875	9.7
	-0.3125000000000001	0.9		7.025	18.7
	-0.61875	1.3		6.918750000000001	7.2
	-0.35624999999999996	-3.7		6.9625	4.3
	-0.3375	-4.1		6.8187500000000005	5.6
	-0.4624999999999999	-5.4		7.531250000000001	18
	-0.6937499999999998	3.1		7.34375	14.4
	0.0625	2.7		8.46875	16.4
	0.13750000000000007	5.6		9.14375	10.3
	0.6249999999999999	5		8.356250000000001	16
	1.05625	2.2		8.99375	12.4
	0.5687500000000001	4.2		7.6625000000000005	7.4
	0.46875	2.8		7.51875	8.3
	1.7374999999999998	4.4		9.175	10.3
	1.5125000000000004	1.9		8.38125	7.6
	2.3874999999999997	-0.1		9.718749999999998	6.1
	2.8750000000000004	-2.6		10.243750000000002	11.1
	2.60625	-0.7		11.250000000000002	21.1
	3.4062500000000004	6.3		12.8375	22.3
	3.5312500000000004	4.7		12.612499999999999	15.3
	3.1874999999999996	0.2		10.631250000000001	5.4
	2.7249999999999996	1		12.149999999999999	7.7
	4.00625	1.1		12.1	12.5
	3.8562499999999997	0.9		11.525	18.6
	3.11875	6.8		11.743749999999999	11
	3.8375000000000004	2.9		12.725000000000001	10.5
	4.13125	0.4		13.662499999999998	8.5
	4.93125	2.7		13.7	14
	5.7875	5.6		14.525	21.1
	6.174999999999999	3.9		15.06875	16.9
May	5.8625	8.2		14.500000000000002	30
	6.05625	10.1		14.85625	21.9
	5.84375	4.6		13.475	9.9
	5.475	4.6		13.8375	10.2
	6.075000000000001	5.8		13.99375	8.7
	6.893750000000001	0.9		15.456249999999997	13.6
	7.28125	2.8		14.149999999999999	14.9
	7.562500000000001	5.6		15.84375	12.4
	8.2875	5.6		17.450000000000006	8.4
	8.706249999999999	6.1		16.31875	18.1
	8.812499999999998	9		17.231250000000003	24.9
	7.85625	11.3		17.974999999999998	20.1
	8.006250000000001	10.5		16.662499999999998	17.2
	8.09375	7.9		16.899999999999995	19.5
	8.89375	8.9		19.00625	32
	9.7875	9.7		17.375	21.7
	9.756250000000001	8.2		19.26875	22.9
	8.59375	7.5		18.50625	20.8
	9.86875	7.6		19.081249999999997	21.3
	10.574999999999998	8.7		19.618750000000002	26.8
	10.962500000000002	13.2		21.34375	26.7
	10.34375	12.8		18.36875	27.3
	9.71875	12.7		19.49375	22.4
	10.55	10.3		18.50625	19.5
	10.749999999999998	10.2		19.9125	21.1
	10.65	12.7		19.54375	22.6
	10.90625	11.1		20.074999999999996	17.6
	11.04375	14.1		19.4875	26
	10.4	14		19.9	23.7
	10.325000000000001	13		18.9	18.3
	10.781249999999998	9.5		18.6375	24.9
Jun.	11.531250000000002	11.2		18.525000000000006	27.7
	12.075000000000001	12.9		20.4875	23.8
	13.35625	11		22.16875	14.5
	12.74375	10.5		20.637500000000003	20.5
	12.487500000000002	8.7		21.524999999999995	20.5
	13.325	11.7		21.225	22.5
	12.575	12.3		19.974999999999998	20.7
	12.431250000000002	11.5		21.406249999999996	21
	13.525	10.9		21.837500000000002	23.9
	12.875000000000002	12.5		21.743750000000002	18.2
	13.137500000000001	9.5		20.637500000000003	24.2
	13.424999999999999	12.3		21.59375	21.3
	13.637500000000003	12.2		22.837500000000006	23
	15.0125	12.2		22.631249999999998	20.4
	15.062500000000002	14.5		24.05625	21.5
	15.450000000000001	16.3		24.88125	29.9
	14.7625	19.6		23.25	29.8
	14.681249999999997	19.3		24.787500000000005	33.8
	16.075	18.1		25.499999999999996	28.8
	16.450000000000003	12.5		26.224999999999994	20.4
	17.862499999999997	10.1		26.200000000000003	22
	16.38125	12.4		24.2875	24.7
	14.86875	13.4		23.937500000000004	27.8
	14.987499999999997	13.7		22.781249999999996	16.2
	15.55625	15.6		24.175	27.9
	16.331250000000004	15.2		25.593750000000004	22.8
	16.081249999999997	15.5		24.337500000000002	32.6
	16.81875	21.7		24.443749999999998	33.3
	16.53125	21.6		24.962500000000002	33.1
	16.15	20.1		24.3875	33.2
Jul.	16.4125	22.9		24.681249999999995	32.3
	16.431250000000002	19.2		24.8625	25
	16.33125	16.6		25.8	26.3
	17.36875	19.6		26.224999999999994	31
	17.4875	18.4		25.99375	30.6
	16.69375	20.4		24.712500000000002	30.7
	16.41875	14.7		25.031250000000004	23.5
	16.862499999999997	10.9		24.031250000000004	27
	16.70625	15.1		25.18125	29.8
	16.4625	14.2		24.25625	27
	16.831249999999997	17.3		26.15625	26.5
	17.675	17.5		25.6875	27.5
	17.3125	17.9		24.999999999999996	23.7
	16.69375	15.8		25.137499999999996	22.2
	16.937500000000004	14.2		25.293749999999996	32.2
	16.618750000000002	23.4		25.425000000000004	35
	17.15625	20.9		25.8375	28.2
	16.55	19.2		25.71875	25.7
	17.181250000000002	15.9		25.231250000000003	25.4
	16.75	15.5		24.575	24.1
	16.43125	14.2		24.937499999999996	24.7
	16.599999999999998	13.2		24.306250000000002	28
	15.9125	15		23.40625	27.3
	15.524999999999999	19.1		24.043750000000003	27.9
	16.06875	13.5		24.575	27.7
	16.75625	17.2		24.75	26.3
	16.981249999999996	13.8		24.5875	29.5
	16.34375	16.4		24.43125	28.1
	16.1875		15.9	24.9		30.4
	16.362499999999997		15.2	23.775000000000002		25.3
	15.6125		13.7	23.893749999999997		23.4
Aug.	16.33125		14.9	24.881249999999998		26.3
	16.518749999999997		13	24.506249999999998		27.7
	15.793750000000001		12.7	23.412500000000005		30.4
	15.606250000000001		15	23.837500000000002		25.7
	16.306250000000002		13.1	24.468750000000004		22.9
	16.45		15.5	24.025000000000002		23.3
	15.331249999999999		14.6	23.012500000000003		23.2
	15.6125		14.8	23.70625		24
	15.631250000000001		15.1	23.98125		24.2
	16.081249999999997		16.2	22.8625		23.2
	16.081249999999997		15.9	24.81875		24
	15.418750000000001		14.6	22.981249999999996		23.4
	15.6		14.7	23.974999999999998		23.2
	15.912500000000001		14.8	23.031249999999996		22.7
	15.531250000000002		14.7	23.525000000000002		23.8
	15.118749999999999		14.3	24.868750000000002		24.2
	15.787500000000001		14.6	24.3625		24.1
	16.13125		15	24.774999999999995		24.2
	15.475		14.5	22.8125		23.2
	14.04375		13.8	22.8375		22.9
	13.95		13.3	21.8		21.6
	13.58125		12.8	21.41875		21.1
	13.468750000000002		12.9	22.20625		22.3
	13.531250000000002		12.2	20.60625		20.1
	12.631249999999998		12	20.18125		20.8
	12.8		13.2	21.106250000000003		21
	13.04375		12.6	20.787499999999998		21.3
	13.162500000000003		13	20.337500000000002		21.4
	12.8375			20.83125
	13.03125			20.225
	12.31875			19.625
Sep.	12.1375			19.643749999999997
	13.424999999999997			22.018749999999997
	13.299999999999999			21.03125
	11.65625			17.931250000000002
	12.324999999999998			20.500000000000007
	13.268749999999999			20.69375
	12.225000000000001			19.0125
	11.487499999999999			19.11875
	11.45			18.14375
	11.73125			19.112500000000004
	11.100000000000001			18.0375
	10.75			18.675
	11.59375			18.825
	10.2875			19.0375
	9.806249999999999			17.3375
	10.374999999999998			17.1
	10.118750000000002			16.4
	10.299999999999999			17.69375
	9.6			17.243750000000002
	8.93125			16.225
	8.88125			15.987499999999997
	8.45625			14.999999999999998
	7.881249999999999			14.418750000000001
	7.88125			15.35625
	7.5062500000000005			14.3875
	8.04375			15.587499999999999
	7.58125			16.125
	7.793749999999999			14.043750000000003
	6.7625			11.574999999999998
	5.85			11.293750000000001
Oct.	4.9937499999999995			10.774999999999999
	4.96875			11.112499999999997
	4.956249999999999			11.749999999999998
	5.300000000000001			12.656250000000002
	6.175			13.349999999999998
	4.9750000000000005			11.112499999999999
	4.86875			10.8375
	4.706250000000001			11.156249999999998
	5.35625			10.7625
	4.34375			10.2625
	4.6			10.05
	3.9250000000000003			9.768749999999997
	2.8687499999999995			7.675
	1.9062499999999998			6.85
	2.1375			8.03125
	2.55			7.48125
	1.775			6.4624999999999995
	1.3062500000000001			7.437499999999999
	1.4062500000000004			7.718750000000001
	2.1624999999999996			8.79375
	1.9999999999999996			8.0875
	1.3875			7.73125
	1.93125			6.9437500000000005
	0.6875			6.0875
	1.2625			6.63125
	1.125			7.106249999999999
	-0.8562499999999997			5.050000000000001
	-0.98125			4.250000000000001
	-2.5937500000000004			3.7437499999999995
	-2.51875			3.03125
	-1.86875			4.14375
Nov.	-1.05625			4.16875
	-1.5375000000000003			4.13125
	-2.14375			2.3125
	-3.3687499999999995			2.11875
	-4.312499999999999			2.4562500000000003
	-3.8937500000000003			1.7375000000000003
	-5.6000000000000005			0.56875
	-4.83125			1.45
	-3.1437500000000003			3.11875
	-3.2749999999999995			2.35625
	-4.575000000000001			0.7437500000000002
	-5.6000000000000005			-0.1312500000000002
	-6.79375			-2.3187499999999996
	-6.4125			-0.46249999999999997
	-4.5			0.6749999999999999
	-5.018750000000001			-0.3625
	-6.168749999999999			-1.06875
	-6.456249999999999			-0.5375
	-5.9750000000000005			-1.0875
	-4.96875			-0.11249999999999999
	-7.093750000000001			-1.5625
	-9.90625			-4.143750000000001
	-9.437499999999998			-3.2375
	-7.50625			-2.1249999999999996
	-8.10625			-2.2625000000000006
	-8.325			-3.1375
	-9.543750000000001			-3.906250000000001
	-10			-4.31875
	-9.16875			-3.8937500000000003
	-8.19375			-2.6000000000000005
Dec.	-8.9375			-2.75625
	-8.4375			-2.4375
	-9.95			-3.30625
	-11.625			-4.9875
	-11.500000000000002			-4.699999999999999
	-11.281250000000002			-3.8062500000000004
	-8.774999999999999			-2.9375000000000004
	-8.35			-3.30625
	-8.768749999999999			-3.28125
	-8.8125			-2.6624999999999996
	-9.762500000000001			-4.624999999999999
	-10.40625			-4.25
	-10.518749999999997			-2.7625
	-11.1875			-3.9312499999999995
	-11.34375			-4.562499999999999
	-12.456249999999997			-6.25625
	-13.606666666666666			-6.7733333333333325

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

35°C

Highest Temp

30 Jul. 26

-29°C

Lowest Temp

23 Jan. 26

Seasonal Breakdown

Hottest MonthJuly27.9°C

Coldest MonthJanuary-15.26°C

Wettest MonthMarch7.36mm

Windiest MonthMarch20.86km/h

Duluth 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 Duluth historically?

July is historically Duluth's hottest month, with average maximum temperatures around 25°C. During peak heatwave events, the highest recorded temperatures have reached 37°C on 2023-09-03.

2. What is the coldest month in Duluth historically?

January is Duluth's coldest month, with average minimum temperatures around -14°C. The all-time record low of -32°C was recorded on 2019-01-31.

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

Duluth's average annual rainfall is approximately 971.2mm, based on records spanning 17 years.

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

Duluth historically records approximately 170.8 rainy days per year. June 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 Duluth?

The all-time highest temperature recorded in Duluth is 37°C on 2023-09-03.

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

The all-time lowest temperature recorded in Duluth is -32°C on 2019-01-31.

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

Duluth experiences its strongest winds during November. The historic gust record of 52.7 kph was recorded on 2010-10-26.

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

Usually, Duluth's humidity peaks in January at around 88.8% and drops to its lowest in May at approximately 73.1%.

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