Rock Island Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Rock Island Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-9.275	-9.4		-1.8875000000000004	-3.8
	-9.95	-6		-2.318749999999999	-1
	-9.568750000000001	-4.8		-1.2	-1.6
	-8.9125	-5		-1.6562500000000002	0.2
	-9.768749999999999	-2.1		-1.48125	-0.4
	-10.625	0.5		-4.18125	1.9
	-9.75625	0.3		-1.9812500000000002	5.7
	-9.193750000000001	1.1		-1.5999999999999996	9.4
	-9.524999999999999	1.7		-0.13125	6.8
	-7.481249999999999	-2.7		0.03750000000000002	1.5
	-6.6499999999999995	-5.2		2.30625	2.3
	-7.90625	-2.8		-0.44999999999999996	4.9
	-10.10625	-0.8		-2.4499999999999997	5.3
	-9.262500000000001	-4.8		-2.125	1.1
Jan.	-9.650000000000002	-8.8		-1.6749999999999998	-3.5
	-9.024999999999999	-4.4		-1.1187500000000004	2.5
	-8.25	-11.5		-1.5	-5.5
	-9.06875	-14.7		-0.26875000000000004	-5.9
	-10.8375	-17.7		-1.6687499999999997	-11.1
	-11.74375	-16.7		-3.9687499999999996	-4.1
	-11.8375	-5.3		-3.2500000000000004	-2.1
	-8.0625	-11.8		-0.9062500000000002	-4.1
	-7.9750000000000005	-20.5		-1.125	-10.8
	-7.725	-18.9		-0.043749999999999956	-14.1
	-6.8375	-14.4		0.056250000000000216	-8.5
	-8.524999999999999	-17.9		-1.2125	-8.5
	-8.05	-11.7		-0.6749999999999999	-4.4
	-7.937500000000001	-15.6		-0.31875000000000003	-5.9
	-8.66875	-14.6		-0.2437499999999999	-9.3
	-8.299999999999999	-16.8		-0.46875	-8.7
	-8.237499999999999	-13.8		0.018749999999999878	-2.5
	-7.65	-12		0.53125	-5.9
	-8.06875	-8.2		-0.30000000000000004	-0.2
	-8.54375	-7.2		-0.12500000000000022	-1.2
	-8.700000000000001	-9.7		0.6624999999999999	-0.9
	-8.762500000000001	-5.1		-1.91875	2.5
	-7.9125000000000005	-2		0.8500000000000002	3.5
	-8.393750000000002	-8.4		0.025000000000000223	-1.5
	-8.387500000000001	-3.5		-1.5749999999999995	-1.1
	-8.837500000000002	-3.1		-2.4125	4.5
	-10.09375	-0.1		-1.8125	4.9
	-10.1375	-3		-1.0937500000000002	5.6
	-9.318750000000001	-0.7		-1.6812499999999992	5.6
	-10.56875	-0.9		-0.93125	13.8
	-9.075	-1.2		0.006250000000000144	7.8
Feb.	-8.2	2.4		0.018749999999999788	8.4
	-7.53125	1.3		1.03125	9.3
	-7.549999999999999	3.4		0.8749999999999994	8.4
	-7.843749999999999	6.4		2.3875	17.5
	-7.525	1.8		1.9874999999999998	7.3
	-5.4437500000000005	-0.7		4.65	6.4
	-4.0562499999999995	-3.4		3.9062499999999996	4.2
	-4.39375	-9.4		3.9499999999999993	-4.4
	-4.86875	-10.2		2.9000000000000004	-0.1
	-6.274999999999999	-4.6		2.2	4.7
	-6.9875	-4		1.375	3.7
	-6.7125	-2.8		4.06875	4.6
	-5.13125	-0.7		4.8	13.1
	-5.106250000000001	-2.9		5.562499999999999	2.9
	-3.8375	-3.2		5.6625	2.4
	-5.3875	-3.6		3.95625	6.7
	-5.525	0.7		4.225	2.8
	-3.3687499999999995	-1.5		5.6125	3.9
	-2.9812499999999997	2.2		5.262499999999999	10.5
	-3.1374999999999997	5.1		6.8374999999999995	17.4
	-2.3312500000000003	4.4		6.9750000000000005	17.4
	-0.33125000000000004	0.4		9.03125	18.2
	0.8625	5.9		8.8	21.4
	1.25625	10		8.625	15.3
	-0.59375	2		8.606250000000001	9.1
	-1.1687499999999997	-1.7		8.875	8.4
	0.61875	1.8		10.437500000000002	7.3
	1.89375	-1.1		11.49375	2.4
Mar.	0.8812500000000001	0.8		11.012500000000001	12.1
	1.5125000000000002	-9.3		10.893750000000002	-2.9
	1.71875	-11.2		10.93125	-1.1
	0.6625000000000001	-5.9		10.25625	9.4
	0.3062500000000001	0.3		10.26875	6.8
	1.0625000000000002	3.5		11.425	11
	1.98125	3.9		11.69375	16.6
	1.5374999999999999	4.2		10.693750000000001	15.9
	1.8875000000000002	2.1		9.925000000000002	9.8
	1.7125000000000001	0.6		8.874999999999998	12.2
	0.9437500000000001	3.3		8.3125	18.8
	0.5062500000000001	11.1		9.812499999999998	21.7
	1.1999999999999997	2.6		10.01875	9.6
	1.7625	-2.4		10.818750000000001	12.2
	3.0374999999999996	2		12.875000000000002	14.2
	2.88125	8.4		13.562500000000002	24.4
	3.5625000000000004	9.9		13.1	19.3
	1.6562500000000002	4.1		11.312500000000004	7.3
	3.3312500000000003	4.3		13.587499999999999	22.9
	3.6	6.4		13.143749999999999	13.4
	3.45	3.8		14.28125	8.5
	3.4062500000000004	1.2		13.575	15.2
	4.0625	2.8		14.2	12
	3.7499999999999996	-0.4		13.65	11
	4.78125	2.9		14.31875	26.7
	5.20625	9.1		16.999999999999996	24.7
	5.175	5.5		14.387499999999998	11.7
	4.9125	2		15.575	16.4
	6.25625	10.2		16.25625	26.7
	6.25	15.6		17.39375	26.8
	5.53125	18		14.587499999999997	30.2
Apr.	6.1125	16.1		15.11875	23.2
	4.925	14.6		14.718749999999996	25.6
	5.675	12.4		15.568750000000001	31.8
	5.2625	2.7		15.51875	13.2
	5.206250000000001	1		15.05	13.9
	5.6625	-0.2		15.2875	19.6
	5.406250000000001	9.1		15.606249999999998	29.3
	5.6	16		16.24375	30.8
	6.6875	13.7		16.3875	30.5
	7.281250000000001	12.2		17.381249999999998	23.9
	6.9125	6.8		15.9375	23.8
	6.29375	7.6		17.400000000000002	27.4
	5.937500000000001	14		16.84375	26.1
	7	9.3		16.84375	21.9
	8.50625	7.8		17.593749999999996	17.9
	8.712499999999999	3.3		16.33125	16
	8.65	2.4		17.393749999999997	14.1
	8.687500000000002	1.7		17.674999999999997	17.2
	8.98125	5.8		18.043750000000003	26.9
	9.3	7.7		19.875	29
	9.26875	8.1		19.418750000000003	19.5
	9.35625	3.9		19.5625	14.8
	10.71875	0.6		22.506249999999998	19.3
	10.86875	7.5		20.7375	24.6
	10.3375	10.3		20.33125	26.8
	10.525	5.4		20.8	23.2
	10.518750000000002	6.4		19.94375	23.2
	10.53125	7.8		20.61875	29.7
	10.39375	10.9		21.3	23.7
	10.912500000000001	5.6		21.012500000000003	27
May	11.66875	14.4		21.575	29.5
	11.58125	16.8		22.63125	31.6
	11.81875	18.8		21.1875	32.4
	11.187500000000002	18.9		21.73125	27.7
	11.36875	10.8		21.887500000000003	19.4
	12.487499999999999	6.7		21.34375	16.7
	12.737499999999999	7.1		20.8375	24.9
	12.31875	11		22.7375	23.1
	12.84375	13.9		23.4375	27.4
	13.83125	15.9		24.6375	30.8
	15.03125	13.6		24.35	32.9
	13.76875	13		24.049999999999997	34.3
	14.8125	12.3		25.081249999999994	35.3
	15.331250000000002	17		24.54375	34.5
	15.443750000000001	11.8		25.26875	33.4
	14.931249999999999	16.4		25.156249999999996	32.7
	14.625	15.6		24.793750000000003	27.5
	13.856249999999998	16.5		24.5125	32.4
	14.55625	11.4		24.2875	31.7
	15.3625	12.1		25.874999999999996	31.9
	16.14375	13.8		26.843749999999996	33.6
	16.5	21		26.6125	30.2
	15.88125	21.7		26.2	34
	15.881250000000001	21.7		25.443749999999998	30.8
	15.04375	21.1		25.131249999999998	29
	15.306249999999999	21.4		26.8875	34.3
	15.874999999999998	20.5		26.2875	35
	17.218749999999996	18.1		26.881250000000005	28.7
	17.050000000000004	13.9		26.35	29.2
	16.13125	16.9		26.275	33
	17.04375	14.9		26.88125	24.8
Jun.	17.556250000000002	10.5		27.89375	28.7
	17.1375	14.8		28.381249999999998	25.7
	18.212500000000002	13.6		28.962499999999995	21.7
	19.06875	15.4		28.03125	25.5
	17.89375	13.4		28.3	29.8
	18.2125	14.6		29.081249999999994	29.3
	19.368750000000002	15.3		28.90625	21.1
	18.7125	12.7		28.175	23.9
	18.5125	14		28.006249999999994	29
	17.81875	17		26.368750000000002	27.8
	17.950000000000003	16.2		27.35625	29.9
	18.38125	17.1		27.2875	24.3
	18.337500000000002	16.7		27.70625	26.6
	18.0125	19.2		27.900000000000002	33.2
	19.00625	23.5		27.831250000000004	37.2
	19.381249999999998	24.2		28.99375	37.2
	17.96875	23		26.993750000000002	37.6
	17.09375	23.8		26.7375	37.8
	17.35625	19.9		28.556250000000002	35.7
	18.925	19.5		29.25	30.4
	20.11875	19.8		29.09375	31.4
	19.950000000000003	18.4		28.981250000000003	32.8
	19.2375	17.1		28.268749999999997	34.7
	18.725	18.9		27.193750000000005	35.7
	18.418750000000003	21.2		28.262499999999996	35.2
	18.69375	20.4		28.375	33.2
	19.406249999999996	20.3		28.25625	33.7
	19.29375	17.4		29.05	34.7
	18.756249999999998	18.3		28.525000000000002	36.2
	18.79375	18.9		29.15625	38.7
Jul.	19.181250000000002	20.3		28.25	38.5
	19.206249999999997	21.2		27.98125	37.8
	18.825000000000003	22		28.687499999999996	35.4
	19.6875	23.5		29.5875	35.2
	20.5	19.4		30.381249999999994	33.8
	20.293750000000003	18.3		29.112499999999997	31.4
	19.593750000000004	19.6		28.993750000000002	29.4
	19.499999999999996	14.6		29.48125	27.8
	20.149999999999995	11.7		29.70624999999999	27.9
	19.593749999999996	15.8		29.187499999999996	28
	19.53125	18.9		29.124999999999993	30.8
	19.7875	23.5		29.212499999999995	37.6
	19.837500000000002	22.9		29.187499999999996	39.3
	19.23125	23		28.825	33.8
	18.656250000000004	17.3		27.999999999999996	33.4
	18.068749999999998	15.2		27.38125	33.4
	18.25	18.1		27.79375	24.9
	18.112500000000004	19.2		28.906249999999996	24.7
	18.46875	17.2		29.1625	29.5
	18.575	14.9		29.231250000000003	30.2
	18.14375	17		28.443749999999998	32.7
	18.525	20.4		28.668750000000003	26.3
	18.6125	19.1		28.156249999999996	26.5
	18.499999999999996	19.4		27.856250000000003	31.2
	18.637500000000003	18.9		28.187500000000004	31.5
	18.681250000000002	17.6		28.38125	33.9
	18.36875	23.6		27.775	37.1
	18.187500000000004	23		27.8375	32.7
	18.05625	23.2		27.825000000000003	28.8
	17.64375	20.4		27.493749999999995	28.5
	17.0875	21.1		27.06875	26.8
Aug.	16.825	22.3		27.381249999999998	29.6
	17.468750000000004	20.4		27.831249999999997	28.9
	17.943749999999998		18.1	27.650000000000006		29.5
	17.8		17.7	28.025		26
	17.6875		20	28.1625		26.7
	18.35		19.7	27.79375		26.5
	18.0625		17.9	27.8125		25.8
	16.599999999999998		18.3	27.043750000000003		26.5
	16.76875		19.8	28.306250000000002		27.5
	17.49375		18.8	28.818749999999998		25.1
	18.425		18	28.849999999999998		28.1
	17.78125		17.9	28.56875		28
	18.45625		18.6	28.943749999999998		28.6
	18.73125		18.5	28.8625		28.2
	18.56875		18.1	29.3375		28.2
	17.724999999999998		17.3	27.737499999999997		26.8
	16.993750000000002		16.3	27.837499999999995		26.6
	17.150000000000002		16.6	28.193749999999998		26.7
	17.143750000000004		16.4	27.25		27
	16.687500000000004		16.5	27.406250000000004		27.1
	16.443749999999998		16	26.806250000000002		26.6
	15.63125		16.2	26.275		26.5
	15.818750000000003		15.6	26.037499999999998		25.4
	15.087499999999999		14.6	26.087500000000002		24.7
	14.375000000000002		13.8	25.09375		24.4
	14.106250000000001		14.4	25.8875		25.7
	14.875		14.7	26.0875		25.7
	14.406250000000004		14.9	24.318749999999998		25.2
	14.08125		14.8	25.418749999999996		25.4
	14.418750000000001		14.1	25.681249999999995		24.6
	13.818749999999998		13.6	25.75625		26.1
Sep.	14.387499999999998		14.6	26.0875		26.2
	14.54375		14.9	25.943749999999998		25.6
	14.956249999999999			25.924999999999997
	14.825000000000001			25.575
	15.037499999999998			25.400000000000002
	15.61875			26.537500000000005
	14.843750000000002			24.4875
	13.56875			23.599999999999994
	13.312499999999998			23.599999999999998
	13.24375			23.95625
	13.075			23.693749999999998
	12.375			23.8625
	12.862499999999999			23.675
	11.51875			22.893749999999997
	10.9875			22.38125
	11.53125			22.831249999999997
	12.025000000000002			22.924999999999997
	12.11875			22.006249999999998
	11.343750000000002			22.193749999999998
	10.50625			20.9375
	11.037500000000001			21.25625
	10.85625			20.362499999999997
	10.306249999999999			19.893749999999997
	9.712499999999999			21.474999999999998
	10.062500000000002			21.643749999999994
	10.174999999999997			21.118750000000002
	9.331249999999999			20.256249999999994
	9.724999999999998			20.256249999999998
	9.243749999999999			17.7
	8.225			16.918750000000003
Oct.	7.518750000000001			16.5375
	6.625			16.1125
	6.7562500000000005			16.556250000000002
	7.0062500000000005			17.8625
	6.806249999999999			16.412499999999998
	6.925			17.65625
	6.637499999999998			16.056250000000002
	6.1125			16.606249999999996
	7.48125			17.78125
	7.731249999999999			16.58125
	7.218750000000002			15.575
	6.4625			15.41875
	5.15625			13.63125
	3.6625000000000005			10.412500000000001
	2.94375			12.1
	5.44375			12.931250000000002
	3.9687499999999996			10.956250000000002
	2.3375			12.61875
	3.85625			13.3125
	3.8687500000000004			13.706249999999999
	5.6625000000000005			13.575000000000001
	4.8687499999999995			13.731250000000001
	4.98125			13.837499999999997
	3.0875000000000004			11.13125
	2.74375			11.212499999999999
	3.0750000000000006			12.44375
	2.49375			11.2125
	1.4874999999999996			11.381249999999998
	-0.32500000000000007			7.325
	-0.9312499999999999			7.53125
	-0.4			8.2875
Nov.	0.85625			9.71875
	1.275			8.893749999999999
	0.7812499999999999			8.412500000000001
	-0.1812499999999999			7.24375
	-0.4375			8.275
	0.5750000000000002			7.962499999999999
	-0.8187499999999999			8.24375
	-1.925			7.1312500000000005
	-0.12500000000000008			7.0874999999999995
	-0.10000000000000014			7.893749999999999
	-0.6875			6.143750000000001
	-1.7812500000000002			6.268750000000001
	-3.3000000000000007			4.0375000000000005
	-3.2687500000000003			3.9625000000000004
	-2.025			5.96875
	-2.14375			5.456249999999999
	-2.175			3.6187500000000004
	-2.0625			4.925000000000001
	-2.1437500000000003			4.825000000000001
	-1.8875			5.725
	-2.425			3.98125
	-5.24375			1.4375000000000002
	-5.581249999999999			0.9999999999999999
	-3.3874999999999993			3.2562499999999996
	-4.58125			2.95
	-3.9124999999999996			2.6187500000000004
	-4.45625			2.88125
	-4.75625			2.5749999999999993
	-3.875			2.8437500000000004
	-4.199999999999999			4.08125
Dec.	-3.6062499999999993			3.4125
	-3.5687499999999996			2.825
	-4.168749999999999			1.6624999999999999
	-5.937500000000001			0.7999999999999998
	-5.643750000000001			1.76875
	-4.393749999999999			2.5375
	-3.40625			3.0250000000000004
	-4.56875			2.4125
	-4.9937499999999995			2.3375
	-4.44375			2.66875
	-3.6625			2.2625
	-4.431250000000002			1.9125000000000003
	-4.443749999999999			3.0562499999999995
	-3.9312500000000004			2.475
	-4.375000000000001			2.9875
	-6.050000000000002			0.12499999999999988
	-7.213333333333334			0.3266666666666666

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

39°C

Highest Temp

27 Jul. 26

-20°C

Lowest Temp

23 Jan. 26

Seasonal Breakdown

Hottest MonthJuly33.75°C

Coldest MonthJanuary-8.87°C

Wettest MonthAugust8.39mm

Windiest MonthApril28.53km/h

Rock Island Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

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Frequently Asked Questions

1. What is the hottest month in Rock Island historically?

July is historically Rock Island's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 39°C on 2026-07-27.

2. What is the coldest month in Rock Island historically?

January is Rock Island's coldest month, with average minimum temperatures around -9°C. The all-time record low of -33°C was recorded on 2019-01-31.

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

Rock Island's average annual rainfall is approximately 1132.1mm, based on records spanning 17 years.

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

Rock Island historically records approximately 160.05 rainy days per year. June 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 Rock Island?

The all-time highest temperature recorded in Rock Island is 39°C on 2026-07-27.

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

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

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

Rock Island experiences its strongest winds during April. The historic gust record of 52.2 kph was recorded on 2026-03-15.

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

Usually, Rock Island's humidity peaks in January at around 82.5% and drops to its lowest in October at approximately 67.2%.

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Rock Island Historic Weather RecordsAnalyse hottest, coldest, windiest & wettest days

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Yearly Summary 2026

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Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

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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?

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Rock Island Historic Weather Records
Analyse hottest, coldest, windiest & wettest days