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

Walla Walla Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-4.85625	-0.2		1.725	3.7
	-4.343749999999999	2.6		2.38125	10.6
	-2.9749999999999996	4.7		3.41875	8.3
	-2.3687500000000004	4.5		4.2437499999999995	8.5
	-1.2625000000000002	1		4.65	6.4
	-1.0812499999999998	0.8		5.31875	5.1
	-1.0124999999999995	0.9		4.9625	5.4
	-1.4749999999999996	-0.9		4.7875	1.8
	-1.03125	2		4.856249999999998	6.9
	-2.2125000000000004	2.5		4.175	8.4
	-2.1499999999999995	4		4.199999999999999	11
	-2.0124999999999997	4.7		4.26875	13.1
	-2.39375	5.9		4.137499999999999	13.1
	-2.6125000000000003	2.6		3.6999999999999993	5.9
Jan.	-3.3124999999999996	0.4		3.3499999999999996	2
	-2.3625	0.3		4.0625	2.3
	-2.0312499999999996	-1		5.1375	3.6
	-0.23749999999999993	-0.9		5.762499999999999	0.4
	-1.2437500000000001	-1.1		4.893749999999999	1.3
	-2.025	-1.7		4.812500000000001	3.5
	-1.4812499999999997	-3.7		5.35625	0.6
	-1.6687500000000002	-2.2		4.91875	-1.2
	-1.25	-3.8		5.6187499999999995	-0.5
	-0.3749999999999999	-5		6.8375	0.3
	-0.19374999999999992	-2.8		6.53125	3.8
	-1.1625	-1.4		6.15	5.2
	-0.7562500000000001	1.1		6.86875	6.5
	-0.4	1.4		6.86875	9.6
	-0.30625	3.4		6.9312499999999995	7.4
	-0.9	4.9		6.25	11.3
	-0.4500000000000002	5		6.393749999999999	12
	-1.0437500000000002	5		6.5	7.1
	-1.5375000000000005	4.9		5.89375	11.1
	-1.3499999999999999	4.2		5.70625	9.1
	-0.6875	2.7		7.0562499999999995	9.8
	-0.09375000000000017	2.5		6.987500000000002	5.9
	-0.3312499999999999	1.8		6.906249999999999	3.5
	-0.5250000000000002	3.3		6.5687500000000005	10.7
	-0.9999999999999997	8		6.2375	10.6
	-1.5999999999999999	1.9		6.562500000000001	8.1
	-2.20625	0.5		6.593750000000002	7.5
	-1.3375	0.4		6.6625000000000005	2.6
	-0.9999999999999999	0.5		7.118750000000001	6.6
	-2.025	1		6.8187500000000005	8
	-0.65625	4.4		6.19375	7.9
Feb.	-0.475	3.3		6.65	6.9
	-0.4500000000000001	0.5		7.15625	4.5
	-0.525	-1.5		7.793749999999999	6.9
	-1.20625	-0.9		6.312499999999999	3.6
	-1.4125000000000003	-2.3		6.0375	5.5
	-0.7999999999999999	-0.4		6.724999999999999	6.2
	-1.50625	-0.3		6.437499999999998	8.9
	-1.7999999999999998	5.7		6.26875	13.1
	-2.125	7.2		5.981249999999999	11.2
	-2.08125	3.1		6.03125	6.6
	-2.65	0.4		5.9375	6.3
	-2.4249999999999994	-0.3		6.456250000000001	11.3
	-1.175	0.4		7.293749999999999	11.4
	0.65625	1.8		8.325	9.4
	0.36249999999999993	2.3		8.762500000000001	9.4
	0.36875000000000013	3.9		8.950000000000001	12.1
	-0.2124999999999999	5.7		8.18125	12.6
	0.1812499999999999	5.7		9.100000000000001	8.9
	0.41249999999999987	1.8		9.424999999999999	6.4
	0.6499999999999998	2.9		9.662499999999998	6.3
	-0.11249999999999996	6.9		9.55625	13.9
	0.21875	3.9		9.44375	12.4
	0.15000000000000008	-0.7		10.3	6.5
	0.90625	-0.6		10.112499999999997	6.3
	1.40625	2.9		10.8375	8.1
	2.0625	6.4		12.575000000000001	10.2
	2.1374999999999997	1.3		12.149999999999999	5.2
	2.2062500000000003	-0.1		11.962499999999999	7.6
Mar.	2.2312500000000006	-1.7		10.806250000000002	7.5
	1.6062500000000002	7.1		10.456250000000002	13
	1.0875000000000001	11.4		9.74375	15.5
	1.5625	11.1		11.6	18.7
	1.00625	12.8		12.45625	18
	1.8375000000000001	13.4		12.875	20.3
	3.03125	4.6		11.83125	12.6
	2.3874999999999993	0.5		11.45	10.1
	1.9312500000000001	4.9		11.61875	12.5
	3.3125	9.3		12.062499999999998	11.7
	2.85625	2.4		12.13125	9.6
	3.3125	-1.2		12.443750000000001	10
	3.7312499999999997	1		13.393749999999999	14.7
	4.30625	7.3		12.687499999999998	14.4
	3.6312500000000005	2.1		12.5375	6.9
	3.28125	-1.4		13.3375	8.3
	2.8875	1		13.1625	9.2
	3.24375	4.7		13.96875	17
	2.9375000000000004	3.7		12.112500000000002	11.9
	3.25625	3.6		13.375	17.1
	3.6625	6		13.33125	21.7
	2.9250000000000003	6.3		12.06875	24.8
	3.225	9.2		13.275	24.3
	3.925	10.7		14.512500000000001	22.9
	3.7875	4.8		13.837499999999999	19.5
	2.8687500000000004	6		14.54375	23
	4.325	5		15.306249999999999	22.9
	4.025	10.3		14.50625	21.1
	3.3124999999999996	9.1		13.34375	17.4
	3.04375	8.3		12.687500000000002	17.3
	2.38125	5.3		13.74375	16.5
Apr.	3.5062499999999996	2.3		14.631249999999998	13
	3.9874999999999994	1.8		14.568750000000001	11.2
	3.9	2.9		14.481250000000001	16.2
	3.5625000000000004	3.5		16.21875	22.9
	4.8062499999999995	5.9		16.59375	25.8
	4.6375	9		16.18125	26
	5.5687500000000005	10.3		16.59375	24.8
	4.90625	7.3		16.28125	11.3
	4.987500000000002	6.5		16.812500000000004	17.3
	5.425	3.4		16.64375	15.1
	5.86875	2.8		16.73125	15.8
	5.74375	3.2		17.543750000000003	17.7
	5.39375	6		16.4875	19.6
	5.775	7		15.818749999999998	19.9
	5.65	7.8		16.68125	21.7
	5.949999999999999	7.4		16.65625	24.3
	6.018750000000001	11		17.525	26.8
	6.30625	13.1		18.375	28.2
	6.512500000000001	10.8		19.2125	27.7
	7.031249999999999	14.6		20.08125	27.6
	7.175	13.7		18.362499999999997	27
	7.14375	13.7		17.9125	28
	7.074999999999999	12.6		18.099999999999998	25.7
	6.224999999999999	11.8		19.1875	24.9
	6.8	10.1		19.3375	25.6
	7.231250000000001	9.8		19.96875	26.8
	7.65	10.1		20.5875	25.8
	8.26875	9.4		20.549999999999997	30.8
	8.443750000000001	10.3		21.04375	15.7
	8.668750000000001	8.3		22.056250000000002	20.9
May	9.224999999999998	7.9		21.787500000000005	19.5
	10.06875	6.6		20.562499999999996	13.5
	9.78125	5.1		20.750000000000004	19.6
	8.7125	7.5		19.118750000000002	22.4
	8.29375	9.2		19.856249999999996	23
	7.906250000000001	7.5		19.45625	20.8
	8.0625	10.9		19.23125	24.5
	8.206249999999999	10.6		19.037499999999998	27
	8.01875	13.2		19.60625	28.5
	8.925	13.3		19.387500000000003	28.2
	9.2	14.5		20.775	29.5
	9.249999999999998	10.5		20.118750000000002	19.2
	9.1625	11.7		20.337500000000002	26.6
	10.031250000000002	15.7		21.350000000000005	31.7
	10.206249999999999	14.2		21.793749999999996	24.8
	10.2	10		22.7875	22.3
	11.18125	9.4		23.225	23.1
	10.456250000000002	11.7		23.131249999999998	27.2
	11.562500000000002	11		24.368750000000002	26.9
	12.28125	14.1		23.974999999999998	26.8
	11.325	11.9		23.056250000000002	25.7
	11.5	10.9		24.312499999999996	23.7
	11.487499999999997	10.5		23.925	20.3
	12.15	7.7		25.174999999999997	22.2
	12.343749999999998	10.5		24.649999999999995	26.6
	12.28125	12.3		23.450000000000003	21
	11.7875	10.6		22.84375	21.3
	11.631250000000001	8.9		23.6	27.4
	10.86875	12.8		24.881249999999998	27.3
	11.668749999999998	11.2		23.88125	28.4
	10.68125	12.5		22.462500000000002	30.3
Jun.	10.5875	15.3		22.15625	33.1
	10.96875	18.6		22.624999999999996	32.4
	11.049999999999999	15		22.84375	28.9
	11.375	14.5		23.15625	29.9
	11.3375	15.2		22.69375	32.9
	11.21875	18.7		22.8375	29.6
	11.799999999999997	14.2		24.699999999999996	28.9
	12.487499999999999	15.3		27.025	31.2
	13.337499999999999	15.7		27.406250000000004	32.8
	14.11875	16.7		27.162500000000005	33.5
	13.712500000000002	17.8		26.950000000000003	31.2
	14.00625	13.9		28.2875	23.2
	14.943749999999998	12.8		29.231249999999996	21.3
	15.19375	11.8		29.131250000000005	24.8
	15.156250000000004	12		28.556250000000006	27.4
	15.499999999999996	13.7		29.906249999999996	27.5
	16.425	11.2		30.412499999999998	26.5
	15.912500000000001	11.7		29.168750000000003	27.5
	15.81875	14.1		28.625	30.4
	15.168750000000001	16		28.48125	32.5
	15.3625	16.2		29.7	32.5
	15.9125	14.5		30.98125	33.4
	16.625	18.1		31.231250000000003	37.4
	16.65	20.2		31.6625	33.3
	17.056250000000002	17.1		32.25	33.1
	17.775	16.6		30.724999999999998	33.9
	17.1125	18.9		30.4	33
	16.6875	18.7		31.3	29.7
	17.118750000000002	16.1		30.693749999999998	35.3
	16.6625	21.6		31.15625	34.2
Jul.	16.7625	21.7		31.58125	38.7
	17.206249999999997	22.8		31.093749999999996	38.1
	17.181250000000002	18.9		30.75625	33.1
	16.974999999999998	18.3		30.912499999999998	33
	17	16.6		30.931250000000002	33.3
	17.143749999999997	19.6		31.006249999999998	31.2
	16.943749999999998	18		30.7875	36.8
	17.268749999999997	22.5		31.4	39.3
	17.20625	23.5		32.025000000000006	36.8
	16.61875	20.3		31.087499999999995	37
	16.625	19.8		31.787499999999998	34.1
	16.481250000000003	16.3		31.525	31.1
	17.625	16.3		31.437500000000004	32.6
	18.03125	17.9		32.40625	32
	18.39375	16.2		34.13125	31.2
	19.337500000000002	17.2		34.7625	32.6
	19.55	17.4		34.08125	34.9
	19.06875	18.5		31.881249999999998	32.2
	18.381249999999998	13.2		33.2875	27.6
	18.693749999999998	12.3		32.25	27.8
	18.137500000000003	12		31.56875	30.4
	17.9125	15.1		32.03750000000001	33.9
	17.781250000000004	19.1		31.843749999999996	36.1
	18.437500000000004	19.8		31.525	37.4
	17.193749999999998	19.9		31.187500000000004	35.6
	17.906250000000004	18.5		31.38125	33.8
	17.6125	17.6		31.2625	32.7
	17.525	17.2		31.724999999999994	32.7
	18.05625	18.1		32.1875	31.4
	17.64375	16.6		31.2	31
	16.875	17.3		31.2125	31.8
Aug.	17.162499999999998		17.9	31.41875		28.9
	17.706249999999997		18	31.5625		32.6
	17.70625		18.5	31.700000000000003		31.7
	17.518749999999997		18.3	32.012499999999996		30
	17.912500000000005		15.5	31.612500000000004		32.2
	17.356250000000003		19.1	30.112500000000004		34.6
	16.3375		21.3	29.674999999999997		33.7
	16.8375		15.8	29.275000000000002		27.5
	16.10625		15.5	28.624999999999996		27.5
	15.550000000000002		14.9	29.131249999999998		28
	15.462500000000002		15.7	29.10625		28.3
	15.599999999999998		15.6	29.31875		29
	15.5625		15.9	29.462500000000006		28.6
	15.999999999999998		15.7	29.849999999999998		29.2
	15.662500000000001		16	29.550000000000004		28.5
	16.068749999999998		15.7	27.91875		26.9
	14.86875		15.2	27.024999999999995		26.7
	14.993749999999999		15	28.137500000000006		27.7
	15.25		15.6	29.249999999999996		28.4
	15.875		15.1	28.743750000000002		27.3
	14.80625		14.7	28.624999999999996		28.3
	14.624999999999998		14.8	28.80625		28
	14.593749999999998		14.8	28.487499999999997		26.9
	15.024999999999999		14	28.968749999999996		27.8
	14.8125		14.3	27.318749999999994		26.3
	14.206249999999999		14	26.90625		25.6
	13.5875		13.4	26.56875000000001		25.7
	13.375000000000002		13.1	26.862499999999994		25.5
	13.075		13.2	26.700000000000006		26.4
	13.612500000000002		13.6	25.99375		25.8
	12.149999999999999		13	25.6		25
Sep.	12.350000000000003			25.66875
	12.2125			24.65625
	12.612499999999997			24.81875
	12.743749999999997			22.86875
	11.4875			23.118750000000006
	12.156249999999998			23.59375
	11.25625			22.724999999999994
	10.874999999999998			22.656249999999996
	11.299999999999999			23.1625
	11.543749999999998			23.7375
	11.937499999999998			23.881249999999998
	11.612500000000002			23.23125
	11.062499999999998			23.0125
	10.912500000000001			22.2375
	10.543750000000001			21.325
	9.99375			21.2375
	9.593750000000002			20.4
	8.66875			21.156249999999996
	9.125			20.362500000000004
	8.4375			19.675
	8.374999999999998			19.868750000000002
	8.424999999999999			20.01875
	9.256249999999998			20.49375
	9.087499999999999			19.825
	8.4			19.70625
	8.86875			19.675
	7.112500000000001			16.4
	6.875000000000001			16.5375
	6.5875			17.387500000000003
	6.71875			17.51875
Oct.	7.3125			17.993750000000002
	7.4			18.38125
	7.499999999999999			17.875000000000004
	6.937500000000002			17.018749999999997
	7.2875			17.66875
	8.01875			18.13125
	7.59375			17.450000000000003
	7.2625			16.23125
	5.924999999999999			14.575
	5.2562500000000005			13.968749999999998
	4.2875			14.76875
	4.2625			11.9625
	3.993750000000001			12.81875
	4.4875			13
	5.0249999999999995			13.1125
	3.9562500000000003			13.343750000000002
	4.75625			13.575
	4.9625			12.537499999999998
	4.15625			12.03125
	4.26875			12.131250000000001
	4.825			12.8
	5.175000000000001			13.325000000000001
	4.5875			12.743749999999999
	2.856249999999999			11.35625
	2.1750000000000003			10.562499999999998
	2.675			10.15625
	1.9937499999999995			9.1
	1.725			9.01875
	1.9125000000000003			9.837499999999999
	2.7062500000000003			9.625
	3.05			9.950000000000001
Nov.	2.55625			9.85625
	1.46875			8.168750000000001
	1.5250000000000004			8.60625
	1.175			8.2125
	0.825			7.493750000000001
	0.018749999999999933			7.2625
	-0.47500000000000014			7.0249999999999995
	1.1437499999999998			8.25625
	-0.19374999999999998			7.96875
	-0.9124999999999998			6.41875
	-0.03124999999999989			7.5625
	1.1375000000000002			7.731249999999999
	1.1312499999999999			7.48125
	-0.39374999999999993			6.206249999999999
	-2.20625			5.281249999999999
	-1.6312499999999999			5.1
	-0.3562500000000001			6.2625
	-0.9375			5.29375
	-2.0499999999999994			4.949999999999999
	-1.375			4.500000000000001
	-1.4749999999999999			4.3
	-1.6562500000000007			4.9875
	-2.3125			4.156249999999999
	-2.3375000000000004			4.543749999999999
	-1.6187500000000004			5.631250000000001
	-0.012500000000000067			5.91875
	0.21875			4.906250000000001
	0.64375			6.1875
	-0.58125			5.475
	-1.1375000000000002			4.675
Dec.	-1.6249999999999998			4.4750000000000005
	-1.95			4.7625
	-1.9000000000000006			4.574999999999999
	-1.2062500000000003			5.5375000000000005
	-1.3000000000000003			5.249999999999999
	-1.025			5.581249999999999
	-0.28124999999999994			5.300000000000002
	-1.775			5
	-1.9562499999999998			4.806250000000001
	-2.44375			4.406249999999999
	-2.7499999999999996			3.075
	-3.4437500000000005			3.0437499999999997
	-2.2125000000000004			3.69375
	-0.8062500000000002			4.1125
	-2.5625000000000004			3.9
	-3.4750000000000005			2.9875000000000003
	-5.166666666666668			1.8933333333333333

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

39°C

Highest Temp

22 Jul. 26

-5°C

Lowest Temp

24 Jan. 26

Seasonal Breakdown

Hottest MonthJuly33.5°C

Coldest MonthJanuary0.9°C

Wettest MonthMarch9.01mm

Windiest MonthJune22.75km/h

Walla Walla 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 Walla Walla historically?

July is historically Walla Walla's hottest month, with average maximum temperatures around 31°C. During peak heatwave events, the highest recorded temperatures have reached 46°C on 2021-06-29.

2. What is the coldest month in Walla Walla historically?

December is Walla Walla's coldest month, with average minimum temperatures around -2°C. The all-time record low of -21°C was recorded on 2010-11-24.

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

Walla Walla's average annual rainfall is approximately 524.5mm, based on records spanning 17 years.

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

Walla Walla historically records approximately 136.1 rainy days per year. December has the highest number of rain days at an average of 17.5 days.

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

The all-time highest temperature recorded in Walla Walla is 46°C on 2021-06-29.

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

The all-time lowest temperature recorded in Walla Walla is -21°C on 2010-11-24.

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

Walla Walla experiences its strongest winds during April. The historic gust record of 54 kph was recorded on 2025-12-17.

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

Usually, Walla Walla's humidity peaks in December at around 79.6% and drops to its lowest in August at approximately 36.4%.

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Analyse hottest, coldest, windiest & wettest days