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

Ketchum Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-16.3625	-3.3		-5.106249999999999	1.3
	-14.46875	-2.9		-4.24375	2.7
	-13.837499999999999	-3.1		-2.3000000000000003	1.8
	-12.2	-2.3		-2.250000000000001	2.4
	-11.33125	-2.8		-1.1625	1.4
	-11.33125	-4.2		-1.4937500000000004	0.2
	-12.475000000000001	-5.1		-1.73125	1.1
	-12.037500000000001	-8.5		-1.85	-1.9
	-11.26875	-12.6		-1.9625000000000004	-1.3
	-13.118749999999999	-9.3		-2.525	0.7
	-13.743750000000002	-6		-2.9625	3.1
	-12.787499999999998	-2.8		-2.631250000000001	4.5
	-12.8125	-2		-1.9374999999999998	6.4
	-12.881250000000001	-2.1		-2.4499999999999997	7
Jan.	-13.481250000000003	-2.9		-2.4125	5.7
	-12.54375	-7		-2.1937499999999996	0.1
	-12.43125	-10.1		-1.3937499999999998	1.5
	-11.381250000000001	-3.2		-1.56875	1.4
	-11.7	-7.2		-1.4125	2.2
	-12.468750000000002	-5.7		-1.8812499999999999	3.9
	-12.512499999999998	-6.9		-1.5125	0.9
	-12.60625	-8.8		-2.03125	1.5
	-11.54375	-10.1		-1.4374999999999998	0.6
	-12.800000000000002	-12.7		-1.6875	-5.3
	-12.037500000000001	-13		-1.3875	-0.8
	-12.231250000000001	-12.1		-1.5250000000000001	-0.1
	-11.5875	-6.8		-1.44375	2.3
	-11.949999999999998	-7.2		-1.0750000000000002	3.1
	-10.9875	-8.2		-0.35	0.8
	-12.5625	-8.2		-1.29375	1.3
	-12.7125	-2.2		-1.8562500000000002	3.8
	-12.906250000000002	-9.7		-1.8312500000000005	5
	-12.10625	-7.1		-1.4187500000000002	3
	-11.099999999999998	-6.1		-1.3812499999999999	4.9
	-10.64375	-4.1		-1.1062500000000002	8
	-10.975000000000001	0.7		-0.34375	10.8
	-11.356250000000001	-1		-0.375	7.2
	-11.037499999999998	-2.1		-0.31875000000000003	7.9
	-11.5375	1.1		-0.8562500000000001	5.2
	-11.156250000000002	-5.3		-0.9374999999999999	1.4
	-12.781250000000004	-8.3		-1.025	-0.9
	-13.299999999999999	-5.2		-1.2000000000000002	1.9
	-11.275	-4.7		-0.25625000000000003	3.1
	-10.84375	-2.7		0.40000000000000013	0.1
	-9.33125	-3.7		0.68125	-0.3
Feb.	-8.474999999999998	-0.7		0.9687499999999999	4.9
	-10.28125	-1.7		0.39375000000000004	2.3
	-11.387500000000001	-8.5		-0.2875	0
	-10.700000000000001	-12.3		-0.78125	-4.3
	-11.462500000000002	-16.5		-1.0375	-6
	-11.45625	-18		-1.2562499999999999	-3.4
	-12.837499999999999	-17.6		-1.50625	-3.5
	-12.343750000000002	-7.1		-2.1374999999999997	3.6
	-13.20625	-9.3		-2.075	2.8
	-12.393749999999999	-4.1		-1.5125	2.8
	-11.725	-7.9		-1.3062500000000001	2.4
	-12.024999999999999	-6.8		-1.4249999999999998	5.1
	-11.91875	-3.2		-1.0375	5.5
	-11.325000000000001	-5.7		0.16874999999999996	5.6
	-9.96875	-2.7		1.1625	3
	-9.681250000000004	-3.3		1.0500000000000003	6.1
	-9.662500000000001	-2		0.9375000000000001	6.1
	-9.95625	0		0.8999999999999999	3.1
	-10.1125	-3		1.4062499999999998	2.2
	-8.331249999999999	-6		1.8125000000000004	2.2
	-9.568749999999998	-2.3		1.9062499999999996	8
	-9.312500000000002	-0.9		1.9250000000000003	9.8
	-9.68125	-4.2		1.3624999999999996	3.9
	-9.04375	-7		2.4999999999999996	-2.4
	-8.5875	-7.9		3.325	1.4
	-7.30625	0.8		4	5.8
	-6.51875	0.3		4.26875	6.2
	-5.668749999999998	-8.9		4.24375	3.7
Mar.	-5.74375	-13.8		4.387500000000001	-0.7
	-5.75625	-5.1		3.9000000000000004	9.2
	-6.906250000000001	3.2		3.5187500000000003	12.5
	-6.993749999999999	4.3		4	15.4
	-7.3999999999999995	5.2		3.6312499999999996	16.3
	-7.018750000000001	8.1		4.125	17.3
	-6.643750000000001	4.6		4.3374999999999995	13.7
	-5.05625	-1.2		3.8625000000000003	9.2
	-6.6625	3.3		4.88125	11.5
	-6.687500000000001	5.2		3.9125	9.5
	-6.46875	3.8		4.625	11.2
	-5.61875	-2.4		5.75	8.3
	-6.368749999999999	-5		5.699999999999999	9.8
	-6.306250000000001	2.6		6.075	15.1
	-5.175	4.6		5.568750000000001	13.4
	-5.156250000000001	-1.5		5.7	6.4
	-4.25	-3.5		6.325	6.3
	-4.54375	2.2		6.25	7.7
	-5.550000000000001	-4		5.287499999999999	1.2
	-6.3875	-5.8		5.38125	7.7
	-5.587499999999999	-10.6		7.143750000000001	10.2
	-4.3374999999999995	-2.8		6.2875000000000005	12.8
	-5.0562499999999995	-0.6		6.4	16.1
	-3.9875	4.5		7.5062500000000005	14.4
	-3.6250000000000004	-2.9		8.13125	14.4
	-4.60625	-2.4		8.456249999999999	14.6
	-4.4	0.4		10.675000000000002	15.7
	-2.6812500000000004	3.6		10.4125	8.7
	-3.1437500000000003	-2		8.793750000000001	8
	-4.562499999999999	-2.4		7.2562500000000005	5.6
	-4.668749999999999	-2.2		6.875000000000001	7.7
Apr.	-4.468750000000001	0.9		7.762500000000001	5.2
	-3.01875	-5.6		9.231250000000001	-0.9
	-3.7250000000000005	-8.7		8.812500000000002	3.4
	-3.4875000000000003	-11.1		10.2625	6.1
	-2.9875000000000003	-6.4		10.51875	12.7
	-2.63125	-1.9		11.174999999999999	16.2
	-1.4812499999999997	0.2		12.0375	17.1
	-1.38125	0.5		12.043750000000001	3.5
	-1.6937499999999999	-8.5		12.04375	6.8
	-1.1187500000000001	-7.8		11.14375	2.7
	-1.1750000000000003	-9.5		11.656249999999998	5.5
	-0.80625	-6		11.987499999999997	8.2
	-0.9875	-5.8		11.862499999999999	6
	-1.68125	-7.4		10.793750000000001	8.7
	-2.3125	-4.4		11.5625	9.6
	-1.44375	-4		11.93125	11.2
	-1.5374999999999996	-3		11.89375	15.4
	-1.3187499999999999	-0.8		13.325000000000001	15.2
	-0.7437499999999999	0.9		13.762500000000003	18.4
	0.33124999999999993	1.9		13.95	18.6
	0.5125000000000001	0.7		14.9125	15.2
	1.4625000000000001	-2.5		14.25625	15.7
	1.4374999999999998	1.3		12.687499999999996	17.2
	-0.1937500000000001	2.2		13.050000000000002	18.8
	0.20625	-1.1		13.931249999999999	17.6
	0.6499999999999999	2.2		14.756249999999998	20.1
	1.0187499999999998	5.2		15.00625	22.3
	1.9249999999999998	6.3		15.8375	24.9
	1.7937500000000002	1.5		15.71875	20.8
	2.6374999999999997	-3		16.625	15.6
May	3.44375	-2.1		17.08125	13.7
	3.4875000000000003	-3.1		16.474999999999998	10.2
	2.7937499999999997	-7.1		15.718749999999998	6.6
	3.3625	-6.6		15.224999999999998	10
	2.381249999999999	-4.3		14.96875	12.2
	2.65625	-2.1		14.3125	11.4
	2.03125	-2.3		14.5	15.2
	2.51875	-1.8		14.924999999999999	15.8
	2.0437499999999997	0.2		13.9	19.7
	1.7875000000000003	5.4		14.837499999999997	21.1
	1.9500000000000002	4.8		15.787500000000001	22.6
	3.6124999999999994	4.5		16.23125	16.7
	3.6625	3.1		16.381249999999998	21.5
	4.58125	5.5		16.53125	20.5
	3.7687500000000007	3.3		17.25625	19.1
	4.1	1.9		18.537499999999998	14.6
	5.6875	0.5		19.949999999999996	17.8
	5.6125	-0.9		18.875	17
	5.2875	0.6		19.75	19.5
	5.999999999999999	2.5		20.262499999999996	21.4
	6.925000000000002	3.8		20.90625	21.8
	7.018749999999999	3.3		21.625	22.8
	6.80625	4.3		21.775000000000002	20.4
	6.70625	-0.6		21.06875	11.5
	6.331249999999999	-2		20.787499999999998	17.7
	6.7437499999999995	-0.9		21.274999999999995	13.1
	6.1625000000000005	-3.6		19.075	11.6
	6.112500000000001	-4		20.5	17.9
	6.918749999999999	0.8		20.875000000000004	21.8
	7.20625	1.2		21.04375	21.3
	6.28125	1.9		20.537499999999998	22.4
Jun.	6.53125	4.2		20.51875	25.1
	5.968749999999999	7.9		20.1125	26.5
	5.46875	4.8		20.256250000000005	24.2
	6.1000000000000005	3.2		20.649999999999995	24.7
	6.0125	6.8		20.53125	27.2
	4.937500000000001	6		19.7	16.7
	5.137500000000001	3.7		21.256250000000005	22.8
	6.7875000000000005	4.5		23.11875	23.8
	7.356249999999999	5.4		24.000000000000007	26
	8.500000000000002	9		24.1625	27.6
	8.981250000000001	8.2		24.568749999999998	23.8
	9.974999999999998	2.3		25.10625	18.5
	9.49375	1.2		25.1375	13.9
	10.187499999999998	-3.7		26.068749999999998	10.7
	9.86875	0.5		25.662500000000005	13.3
	9.6375	0.5		25.83125	16.3
	10.437500000000002	2.9		27.231250000000003	21.1
	10.86875	4.1		26.85625	22.3
	10.168750000000001	5.5		26.318750000000005	23.8
	10.512500000000001	6.6		26.712500000000002	27.3
	10.718750000000002	9.9		27.05	28.9
	10.75	10.7		27.3375	26.7
	11.487499999999999	8.5		27.8625	27.5
	11.975	9.7		27.624999999999996	28.8
	11.925	9.3		28.699999999999996	27.3
	12.043750000000001	9.1		28.612499999999997	29.1
	12.25	10.6		27.668750000000003	30.8
	11.81875	14		28.6875	32.4
	12.10625	12.5		28.6875	30.8
	12.156250000000004	13.1		28.65625	28.3
Jul.	11.85625	10.8		28.668749999999996	29.3
	12.043750000000001	11.7		28.81875	31.6
	12.25	10.6		28.5625	27.2
	12.174999999999997	11.9		29.037499999999998	31.2
	11.962499999999999	12.1		28.681250000000006	31.4
	11.731250000000001	14.4		28.9875	31.8
	12.36875	13.8		29.206249999999994	32.2
	12.6125	12		29.425	23.3
	13.36875	11.8		29.60625	30.1
	12.899999999999999	13.4		28.881250000000005	32.8
	12.593750000000002	13.2		29.268749999999997	32
	12.724999999999998	13.2		29.193749999999998	30.8
	12.5875	12.9		28.518749999999997	31
	12.2375	11.2		28.71875	30.9
	12.068749999999998	12.3		28.975	30.6
	12.725	9.4		29.862499999999997	30.5
	12.668750000000001	12.3		29.46875	32.4
	13.41875	13.7		29.575	32.5
	13.0125	9.3		28.35	28.3
	12.21875	5.3		28.862499999999994	25.9
	12.7125	4.8		28.11875	26.9
	12.100000000000001	6.9		27.49375	29.5
	12.01875	10.4		27.3875	32.2
	11.93125	12.1		27.28125	33.1
	11.20625	12.8		26.4625	32
	11.06875	11		27.00625	31.7
	11.5375	11.6		27.668750000000003	30.7
	11.656249999999998	10.8		27.668750000000003	30.8
	11.343749999999998	11.4		27.900000000000002	28.2
	12.1625	6.4		28.525	20
	12.162500000000001	5.3		28.131249999999998	21.3
Aug.	11.156249999999998	6.7		28.331249999999994	22.8
	11.3125	8.1		28.95	26.8
	11.818749999999998		7.6	28.825		8.3
	12.299999999999999		7	28.831249999999997		8.1
	12.1375		6.7	28.1375		8.1
	12.18125		7.9	27.293749999999996		9.3
	11.8625		9	26.443750000000005		9.9
	11.087500000000002		7.7	25.98125		10.7
	10.10625		5.6	26.293750000000003		7.6
	10.5125		7.1	26.76875		9.4
	11.118749999999999		10.3	25.881249999999998		23.2
	10.087500000000002		10.2	25.61875		23.8
	10.6125		10.3	25.6		23.4
	9.856250000000001		10.3	26.15		24.3
	10.599999999999998		10.5	26.349999999999998		24
	9.956249999999999		10	25.7125		23.2
	9.98125		10.2	25.349999999999998		22.5
	10.2125		9.7	26.075		23.7
	10.475		9.8	25.956249999999997		23.7
	10.43125		9.5	25.68125		23.2
	9.756250000000001		9.3	25.625000000000004		23.2
	9.66875		9.3	24.862499999999997		22.9
	9.431249999999999		9.1	25.099999999999998		22.5
	9.5		8.8	25.806250000000006		22.9
	9.39375		8.4	24.5875		21.2
	8.325		7.8	22.862499999999997		21.1
	7.5874999999999995		7.5	23.318749999999998		21.5
	7.64375		7.6	22.99375		21.3
	7.3625		7.3	23.225		20.1
	7.712500000000001		6.8	21.5		20.4
	7.512499999999998		7.8	22.493750000000002		20.2
Sep.	7.174999999999999		7.5	21.168750000000003		19.3
	7.44375		7.1	21.625		19.3
	6.66875			21.00625
	6.93125			20.68125
	6.1625			18.8875
	5.75			19.15
	5.487499999999999			19.268749999999997
	5.0687500000000005			18.799999999999997
	4.7875000000000005			19.44375
	5.6875			20.693749999999998
	6.05625			20.343750000000004
	5.7125			20.43125
	5.80625			20.3125
	5.6625000000000005			19.63125
	5.431250000000001			18.731250000000003
	5.54375			18.14375
	4.2			17.05
	3.9437500000000005			17.05
	4.331250000000001			17.443749999999998
	3.6500000000000004			14.881249999999998
	2.30625			15.556249999999999
	2.5062499999999996			15.693749999999998
	2.4625			16.33125
	2.0625			15.63125
	2.29375			15.825
	2.5375			15.506250000000001
	1.56875			13.681250000000002
	-0.39375			12.543750000000001
	0.325			13.3375
	0.84375			13.993749999999999
Oct.	0.9812500000000001			14.025000000000002
	1.04375			14.799999999999997
	1.41875			14.956249999999997
	1.05			13.50625
	0.09375000000000007			13.36875
	0.35625			13.350000000000001
	0.2749999999999999			12.875
	0.75			13.15
	-0.325			10.85
	-0.7875			10.687500000000002
	-0.825			9.50625
	-2.6000000000000005			7.525
	-4.281249999999999			7.96875
	-3.0937500000000004			8.5375
	-2.25			8.98125
	-3.0875			9.16875
	-2.1875			10.243749999999999
	-1.53125			9.55625
	-2.09375			8.19375
	-2.9625000000000004			7.406249999999999
	-3.70625			7.65
	-3.9187499999999997			7.8
	-4.324999999999999			7.1375
	-4.3500000000000005			6.550000000000001
	-4.6812499999999995			6.500000000000001
	-4.437499999999999			6.000000000000001
	-5.856249999999999			5.187500000000001
	-6.89375			4.2562500000000005
	-6.418749999999999			4.81875
	-6.125			4.65625
	-5.937500000000001			5.23125
Nov.	-6.125000000000001			4.6375
	-6.3062499999999995			3.6
	-7.112499999999999			3
	-7.518750000000001			3.0125
	-7.843749999999999			2.23125
	-9.468749999999998			2.59375
	-8.7125			2.41875
	-7.0249999999999995			3.3437500000000004
	-8.4875			2.7750000000000004
	-10.006250000000001			0.8187500000000001
	-9.9			0.8
	-9.5875			1.45625
	-8.475			1.4249999999999998
	-9.05			1.10625
	-10.881250000000001			0.23749999999999993
	-11.625000000000002			-0.6374999999999998
	-9.6			-0.025000000000000078
	-9.200000000000001			0.7312500000000002
	-10.0125			-0.03750000000000012
	-10.106249999999996			0.25624999999999987
	-10.950000000000003			-0.44374999999999976
	-11.256250000000001			-0.5562499999999999
	-11.443749999999998			-0.16875000000000007
	-11.874999999999998			-0.7625000000000001
	-12.543750000000003			-1.2562499999999999
	-11.268749999999999			-0.5750000000000001
	-10.38125			-0.012499999999999956
	-9.043750000000001			0.49374999999999986
	-10.1125			-0.38125
	-11.225			-0.75625
Dec.	-11.98125			-2.1187499999999995
	-12.968750000000002			-2.41875
	-13.4375			-2.7999999999999994
	-12.04375			-1.8062500000000001
	-12.56875			-2.225
	-12.387499999999998			-1.3250000000000002
	-10.325			-0.4625000000000002
	-11.725000000000001			-1.51875
	-12.381250000000001			-1.7812499999999998
	-11.962499999999999			-2.59375
	-12.062499999999998			-1.6624999999999996
	-13.375000000000002			-3.7374999999999994
	-13.943750000000001			-3.7437500000000004
	-13.975000000000001			-3.4499999999999997
	-13.775			-2.7499999999999996
	-13.643749999999999			-2.9937499999999995
	-16.30666666666666			-5.013333333333334

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

33°C

Highest Temp

7 Aug. 26

-18°C

Lowest Temp

20 Feb. 26

Seasonal Breakdown

Hottest MonthJuly29.17°C

Coldest MonthJanuary-6.43°C

Wettest MonthFebruary4.66mm

Windiest MonthAugust22.95km/h

Ketchum 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 Ketchum historically?

July is historically Ketchum's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 36°C on 2024-08-02.

2. What is the coldest month in Ketchum historically?

January is Ketchum's coldest month, with average minimum temperatures around -12°C. The all-time record low of -30°C was recorded on 2016-12-18.

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

Ketchum's average annual rainfall is approximately 448.1mm, based on records spanning 17 years.

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

Ketchum historically records approximately 131.2 rainy days per year. December has the highest number of rain days at an average of 14.06 days.

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

The all-time highest temperature recorded in Ketchum is 36°C on 2024-08-02.

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

The all-time lowest temperature recorded in Ketchum is -30°C on 2016-12-18.

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

Ketchum experiences its strongest winds during July. The historic gust record of 53.6 kph was recorded on 2025-12-17.

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

Usually, Ketchum's humidity peaks in February at around 84.5% and drops to its lowest in August at approximately 33.4%.

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