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

Decatur Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-5.1625000000000005	-7.3		1.8624999999999998	-0.5
	-5.575	-2.3		0.6625000000000003	1.6
	-6.4375	-2.3		1.3625000000000003	2.6
	-6.768749999999998	-3.5		0.3187500000000001	2.1
	-7.262499999999999	-1.3		0.43749999999999994	2.4
	-7.5375000000000005	1.8		-1.4000000000000001	6.3
	-7.45	2		-0.2500000000000001	6.2
	-6.250000000000003	2.4		0.35624999999999996	13.8
	-6.9437500000000005	4.8		1.65625	16
	-4.575	1.2		3.2375000000000007	6.7
	-3.5124999999999997	-3.1		4.874999999999999	3.5
	-5.487500000000001	-2.3		2.9500000000000006	7.9
	-7.5249999999999995	-0.9		-0.5062499999999999	10.3
	-6.98125	-4.7		-0.025000000000000133	5.2
Jan.	-6.793750000000001	-7.3		0.36250000000000004	-1.2
	-5.831250000000001	-3.2		1.5750000000000002	3.3
	-5.656250000000001	-9		2.40625	-2.5
	-5.6187499999999995	-11.7		1.9749999999999999	-4
	-7.05	-14.8		1.0625	-6.4
	-7.699999999999999	-14.2		-0.6374999999999998	0.5
	-7.800000000000001	-4		-0.6062500000000002	3
	-6.018749999999999	-6.7		1.8125	-1.8
	-5.268750000000001	-15.9		1.4687499999999998	-2.8
	-5.4750000000000005	-15.5		2.30625	-12.7
	-4.575000000000001	-12.8		2.1812499999999995	-7.5
	-5.03125	-19.3		1.21875	-9.8
	-5.7124999999999995	-13.9		1.83125	-2
	-4.70625	-18.5		2.5875	-5.1
	-4.90625	-14		2.3	-6.6
	-5.5687500000000005	-16.9		2.1437500000000003	-6.3
	-4.43125	-14.9		3.4625	-3.1
	-4.0375	-15.8		3.425	-4.1
	-5.2	-5.9		3.8812499999999996	0.6
	-5.23125	-5.9		3.2250000000000005	-1.1
	-5.73125	-6.4		3.5624999999999996	-1.6
	-6.237499999999999	-9.4		1.3624999999999998	-1
	-5.525000000000001	-1.8		2.5249999999999995	1.9
	-5.51875	-8		3.4499999999999997	-1.4
	-6.2625	-4.9		1.0687499999999999	-1.6
	-6.00625	-2.7		0.8562499999999998	2.7
	-7.325000000000001	-0.5		0.26249999999999996	6.6
	-6.7625	-3.4		1.1437499999999998	5.2
	-7.056250000000001	-1.4		0.41249999999999987	4.8
	-7.7562500000000005	0.3		1.6124999999999998	10.6
	-6.4	0.6		2.6937500000000005	6.8
Feb.	-5.6125	5.2		3.04375	8.5
	-4.8875	2.6		3.0500000000000007	7.6
	-5.156250000000001	2.9		3	9.2
	-5.018750000000001	9.1		4.012500000000001	18.9
	-4.6187499999999995	10.1		4.418749999999999	16.9
	-3.3062500000000004	1.6		7.375000000000001	10.8
	-0.9562499999999998	-2.6		6.906249999999999	6.8
	-1.2000000000000002	-6		7.93125	-0.5
	-1.8874999999999997	-8.2		6.625	0.7
	-3.5749999999999997	-4.5		5.375	3.7
	-3.7624999999999997	-1.8		4.05625	5.2
	-3.8375000000000012	-1.1		5.74375	8.1
	-1.9875	-0.7		7.5874999999999995	17
	-1.59375	0.8		9.093749999999998	11
	-1.4562499999999996	-1.6		7.993749999999999	3.6
	-2.8000000000000003	-0.4		6.7	3
	-3.3249999999999997	2.7		6.612500000000001	5.5
	-1.6999999999999988	3.1		7.937500000000001	9.3
	-0.7687500000000002	6.7		7.581249999999999	12.8
	-1.4812499999999997	9		8.7875	24.5
	-0.5125000000000001	6.7		9.418750000000001	18.2
	1.1499999999999997	1.7		10.356250000000001	16.2
	2.6375	4.5		12.118749999999999	18.7
	3.8000000000000007	16.1		11.106250000000001	23.7
	1.2875	3.4		11.18125	19.6
	0.16875000000000007	-1.4		10.212500000000002	9
	2.44375	4		10.8125	12.4
	3.3	0.4		12.075	8.6
Mar.	3.3375000000000004	8.4		12.6875	13.8
	2.8312499999999994	-6.2		12.368749999999999	0.6
	3.29375	-8.4		12.71875	0.9
	2.18125	-2.2		11.875	12
	2.0625000000000004	0.1		11.1625	19.4
	2.3375	8.2		12.856249999999998	24.8
	3.4875	5.5		13.3625	21.4
	3.49375	7.6		12.13125	21.3
	3.625	-0.1		12.537500000000001	9.2
	3.7875000000000005	-0.5		10.7375	12.6
	2.7375	6.5		10.862499999999997	17.5
	1.69375	14.5		10.725	26.9
	2.56875	2.6		11.543750000000001	12
	2.8125	-2.1		12.5	12.2
	4.8	3.6		13.38125	14.6
	4.65625	11.4		15.668750000000001	23.1
	5.5	15.1		14.037500000000003	22.9
	2.975	6		12.48125	9.8
	4.343750000000001	7.8		15.093750000000004	22.2
	5.8625	13.7		16.250000000000004	26.2
	6.0125	4.7		16.36875	18
	5.425000000000001	2.9		14.7375	15.7
	5.4875	4.5		14.937499999999998	17
	5.893750000000001	1.4		15.0625	12.3
	6.8	3.2		15.6	25.4
	7.30625	12.4		17.85	28
	7.625000000000001	8.7		17.15625	17.5
	6.637499999999999	4.6		16.825	23.6
	6.775	13.7		17.137500000000003	29
	8.043750000000001	18.3		18.3375	30.1
	7.225000000000001	18.1		17.3625	30.5
Apr.	7.29375	17.1		16.84375	28
	6.8812500000000005	14.9		15.787500000000001	27.4
	7.249999999999999	13.7		17.56875	29.9
	7.175	5.1		18.03125	11.9
	6.7437499999999995	2.5		17.69375	16.9
	7.012499999999999	1.1		17.24375	19.5
	6.618750000000001	8.7		16.568749999999998	27.7
	7.468750000000002	15.2		16.818749999999998	28.4
	7.799999999999999	13.2		17.425	29.3
	8.2875	14.2		16.900000000000002	22.4
	8.475	9.4		17.4375	23.3
	8.2875	8.3		18.53125	27.9
	7.643750000000001	14.4		18.2625	21.5
	8.7625	10.9		17.825000000000003	15.3
	10.0625	7.8		20.14375	16.5
	10.431249999999999	3.8		18.818749999999994	18.4
	10.606250000000001	5.4		19.406249999999996	14.3
	10.56875	3.6		19.962500000000002	15.8
	11.375	4.5		19.99375	23.9
	10.4625	12		18.618750000000002	27.6
	10.537500000000001	9.3		20.125	13.8
	11.068749999999998	6.7		20.46875	14.8
	11.8	4.2		23.13125	19.1
	12.00625	8.1		22.224999999999998	20.9
	11.399999999999999	9.8		21.54375	26.6
	11.5125	10.4		21.94375	23.3
	12.118750000000004	6.3		21.48125	24.6
	12.462500000000002	8.1		21.143750000000004	29.3
	11.68125	11.9		22.45	23.9
	12.55625	5.4		21.637500000000003	24.4
May	12.58125	11.6		21.375	27.1
	12.83125	17.2		22.056249999999995	30
	13.275	17.6		21.6625	30.6
	13.143749999999999	18.7		22.450000000000003	28.5
	12.393750000000002	15.2		23.175	27.5
	14.106249999999998	11.1		23.3875	18.7
	14.487499999999997	8.1		22.756249999999998	19.8
	13.81875	12.2		23.231250000000003	21.8
	13.725	14.8		24.074999999999996	26.2
	14.54375	16.4		25.25	27.9
	16.481250000000003	12.2		25.06875	30.2
	15.443749999999998	14.2		24.89375	31
	16.34375	17.4		25.693750000000005	30.6
	16.412499999999998	16.8		25.50625	33.3
	17.15625	14.5		26.15625	31.6
	16.424999999999997	15.2		25.906249999999996	32.5
	16.3625	15.9		25.40625	30
	15.312499999999998	16.4		24.900000000000002	30.8
	15.475	13.3		24.656249999999996	30.2
	16.0625	11.4		26.500000000000004	29.8
	16.63125	13.6		27.1	29.7
	17.35625	18.8		26.575000000000003	29.9
	16.55	21.7		26.425	32.7
	16.812500000000004	21.8		26.268750000000004	31.9
	15.775000000000002	22		26.13125	25.3
	16.35	21.8		26.73125	33
	17.08125	24.6		26.78125	34.2
	17.4125	20		27.10625	32.7
	17.80625	16.6		27.1875	27.6
	17.368750000000002	16.5		26.75625	29.2
	17.33125	16		27.3125	22.5
Jun.	18.299999999999997	12.1		28.456249999999997	26.6
	18.51875	13.6		28.256249999999998	26.5
	18.7125	12.9		29.06875	27.1
	19.468750000000004	16.3		28.474999999999994	24
	19.175	14.9		28.3125	27.9
	19.225	17.8		29.381249999999998	28.7
	19.9375	15.9		30.043750000000003	25.4
	19.793750000000006	14.7		28.418750000000006	22.5
	19.55	12.5		28.1125	26.3
	18.1625	15.2		27.43125	28.8
	18.48125	17.9		28.44375	28.9
	19.099999999999998	17.5		28.181250000000006	22.6
	18.9625	20.3		28.200000000000003	28.2
	18.481250000000003	22		28.493750000000002	31.3
	19.0875	23.2		28.1125	35
	19.575	23.6		28.393750000000004	35.5
	18.668750000000003	23.1		27.6625	35.7
	17.68125	23.2		26.775000000000002	36.1
	17.643749999999997	24		28.11875	36.2
	19.0125	21.2		28.73125	34.7
	20.018750000000004	20.8		29.481250000000003	29.5
	20.181250000000002	19.4		29.512500000000003	28.2
	19.7125	19.1		28.706249999999997	31.4
	19.1625	18.8		28.181250000000002	32.7
	19.18125	21		28.237500000000004	34.1
	19.075000000000003	19.7		28.5	33.5
	18.950000000000003	21.7		29.031249999999996	28.3
	20.037499999999998	19.4		29.312499999999996	31.7
	19.812499999999996	17.4		28.612499999999997	32.4
	19.25	18.9		29.29375	33.7
Jul.	19.525000000000002	19.9		28.01875	34.5
	19.650000000000002	20		28.806250000000002	34.8
	19.875	22.8		28.075	33.1
	19.91875	23		29.193749999999998	34.4
	20.318750000000005	21.8		29.95	32
	20.893750000000004	18		30.056250000000002	32
	20.099999999999998	22.6		28.756249999999994	33.7
	19.69375	16.8		28.71875	27
	20.056250000000002	11.8		29.618749999999995	26.9
	19.5	13		29.387500000000003	28.7
	19.6	18.8		29.074999999999996	26.7
	20.087500000000002	21.6		29.462500000000002	36.5
	20.25	23.5		28.95	37.1
	19.599999999999998	21.9		28.987500000000004	33.4
	19.018749999999997	15.2		27.675000000000004	32.1
	18.474999999999998	15.1		27.187499999999996	31.4
	18.225000000000005	17.8		26.750000000000004	30
	18.043750000000003	20.4		28.381250000000005	22.9
	18.2125	18.8		27.943749999999998	28
	18.7125	16.4		28.781250000000007	30.7
	18.5	16.6		28.168750000000003	32.1
	18.85	17.7		28.193749999999998	33.2
	19.08125	21		27.618749999999995	28.3
	18.768749999999997	18.7		27.625	31.9
	18.781249999999996	21.8		27.79375	33.7
	18.8875	20.3		28.275	34.1
	19.03125	24.5		28.243750000000002	36.3
	18.6	24.1		28.449999999999996	36.4
	18.36875	22.8		28.3	30.5
	17.84375	20		27.400000000000002	35.5
	17.68125	22.5		26.843750000000004	28.6
Aug.	16.98125	22.5		26.525000000000002	34
	18.068749999999994		23.1	27.36875		31.3
	18.7625		20	27.931250000000002		30.2
	18.30625		18.7	27.83125		31.7
	18.38125		19.7	28.143750000000004		28.1
	18.55625		19	28.4		24.5
	18.256249999999998		17.2	27.612500000000004		24.2
	17.20625		14.9	27.09375		25.8
	16.8875		17.2	27.74375		28
	17.2625		17.9	28.44375		28.8
	18.1125		18	29.018749999999997		28.8
	18.518750000000004		18.5	28.95625		29.1
	18.612499999999997		18.8	29.068749999999998		29.1
	18.618750000000002		18.5	29.181249999999995		28.7
	19.425		18.7	29.48125		29
	18.643749999999997		17.9	27.91875		27.4
	18.037499999999998		17.7	28.93125		27.8
	18.48125		17.7	27.868750000000002		27.3
	17.650000000000002		16.9	27.775		27.3
	18.08125		17.7	27.04375		27.5
	17.400000000000002		17	26.918750000000003		27
	16.212500000000002		16.9	26.418750000000003		26.6
	16.506249999999998		16.7	26.73125		26.4
	16.08125		15.7	26.356249999999996		25.9
	15.21875		14.5	25.487499999999997		24.9
	14.781249999999998		14.9	25.3875		25.8
	15.668750000000001		15.4	26.356249999999996		26.2
	15.125000000000002		15.2	25.375000000000004		26
	14.70625		15.1	25.625		25.7
	14.618749999999999		14.5	25.83125		25.6
	14.3125		14.2	26.23125		26.2
Sep.	14.95		14.8	25.9125		26.2
	15.15625			25.881250000000005
	15.28125			26.3375
	16.05			26.843750000000004
	15.48125			26.40625
	15.899999999999999			27.0625
	16.16875			25.675000000000004
	14.15625			24.443749999999994
	13.787500000000001			24.175
	13.66875			24.462499999999995
	14.31875			24.487499999999997
	13.21875			23.90625
	13.70625			23.9375
	13.2875			24.193749999999998
	13.03125			23.5875
	13.200000000000001			23.3125
	12.9375			23.787499999999998
	14.01875			22.75625
	12.375			22.11875
	11.693750000000001			21.86875
	11.918750000000001			22.831250000000004
	12.2375			22.025
	11.56875			21.743749999999995
	10.4375			21.8625
	10.374999999999998			22
	11.0625			22.575000000000006
	11.118749999999999			21.09375
	10.55			21.118750000000002
	10.699999999999998			19.9375
	9.59375			19.131249999999998
Oct.	9.2875			17.93125
	7.55625			16.78125
	7.25			16.725
	7.362500000000001			17.7125
	7.356249999999999			16.556250000000002
	7.625000000000001			18.125000000000004
	7.91875			17.462500000000002
	7.431250000000001			18.225
	9.1			18.70625
	9.762499999999998			17.7625
	8.5875			17.287499999999998
	8.23125			16.737499999999997
	6.749999999999999			15.28125
	5.531249999999999			12.500000000000002
	4.4875			12.98125
	7.01875			14.187500000000004
	5.0375			12.368749999999999
	3.4625000000000004			13.137500000000001
	4.831250000000001			14.624999999999998
	4.8687499999999995			14.725000000000003
	6.9312499999999995			15.093749999999998
	6.387499999999999			14.774999999999999
	6.2375			14.581249999999999
	4.59375			12.956249999999999
	4.606250000000001			13.10625
	4.18125			13.85
	4.2375			12.64375
	2.65625			13.618749999999999
	1.5187499999999998			9.06875
	0.24999999999999983			8.34375
	0.42499999999999993			9.61875
Nov.	1.7875			10.000000000000002
	1.9999999999999998			9.593749999999998
	1.76875			10.556250000000002
	1.4125			8.774999999999999
	0.925			9.3375
	1.8125000000000002			9.381250000000001
	2.2687500000000007			10.25
	0.5437499999999998			8.543750000000001
	1.1249999999999998			8.16875
	1.5562500000000001			9.45625
	1			9.11875
	0.31250000000000006			8.412500000000001
	-1.1812500000000001			5.937499999999999
	-1.1125			5.206250000000001
	-0.36875			7.175
	0.16875			8.031250000000002
	-0.175			6.43125
	-0.1875			6.356249999999999
	-0.10624999999999996			7.05
	0.38124999999999987			7.1875
	-0.7374999999999999			6.075
	-3.09375			3.58125
	-3.31875			2.6875
	-1.6687499999999997			4.79375
	-2.025			5.29375
	-2.04375			4.96875
	-2.7249999999999996			5.54375
	-2.475			4.875000000000001
	-1.74375			4.95625
	-2.075			5.6125
Dec.	-1.5312500000000004			4.9125000000000005
	-1.80625			4.35625
	-2.5250000000000004			3.3687500000000004
	-4.3375			2.5625
	-3.63125			4.0625
	-1.8687499999999997			5.31875
	-1.2937499999999997			5.593749999999999
	-2.2875			4.925
	-2.4375000000000004			4.637499999999999
	-1.85			4.893750000000001
	-1.2312499999999997			4.718750000000001
	-1.5250000000000001			5.0249999999999995
	-1.4250000000000003			5.94375
	-2.25			4.7625
	-2.0500000000000003			4.61875
	-2.9249999999999994			3.1125
	-2.6466666666666665			3.426666666666667

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

37°C

Highest Temp

27 Jul. 26

-19°C

Lowest Temp

26 Jan. 26

Seasonal Breakdown

Hottest MonthJuly32.34°C

Coldest MonthJanuary-7.36°C

Wettest MonthMarch8.72mm

Windiest MonthApril28.62km/h

Decatur 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 Decatur historically?

July is historically Decatur's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 38°C on 2023-08-24.

2. What is the coldest month in Decatur historically?

January is Decatur's coldest month, with average minimum temperatures around -6°C. The all-time record low of -26°C was recorded on 2019-01-30.

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

Decatur's average annual rainfall is approximately 1172.6mm, based on records spanning 17 years.

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

Decatur historically records approximately 169.1 rainy days per year. April has the highest number of rain days at an average of 16.2 days.

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

The all-time highest temperature recorded in Decatur is 38°C on 2023-08-24.

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

The all-time lowest temperature recorded in Decatur is -26°C on 2019-01-30.

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

Decatur experiences its strongest winds during April. The historic gust record of 55.1 kph was recorded on 2016-04-02.

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

Usually, Decatur's humidity peaks in July at around 82.7% and drops to its lowest in October at approximately 66.5%.

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

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Yearly Summary 2026

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