Marion weather by month

Check out Marion weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Marion (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	4	7	14	20	25	30	32	31	27	21	14	7
Min temperature (night-time)	-6	-4	2	8	12	17	19	18	14	7	2	-3
Heat & Humidity	0	0	0	0	0	M	H	H	L	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Marion

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	5	5	6	8	9	10	10	10	8	7	5	4
Daily hours of daylight	10	11	12	13	14	15	14	14	12	11	10	10
UV Index (Maximum)	2	3	5	7	8	9	10	9	7	5	3	2

Rainfall in Marion

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	9	9	12	11	10	9	9	8	8	8	10	10
Average monthly rainfall (mm)	72	78	124	110	124	96	100	88	81	75	104	102

More about Marion

Marion by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Illinois (Marion) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Marion?

Marion has a cold climate with hot summers and some rainfall in all months.

Marion weather in January

Expect daytime maximum temperatures of 4°C in Marion, Illinois in January based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 72 mm of rainfall in the month, which might fall as snow.

4
4°C max day temperature
5
5 hours of sunshine per day
9
9 days with some rainfall
-6
-6°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
72
72 mm of monthly rainfall
2
2 (Low) UV index

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Marion weather in February

Expect daytime maximum temperatures of 7°C in Marion, Illinois in February based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 78 mm of rainfall in the month.

7
7°C max day temperature
5
5 hours of sunshine per day
9
9 days with some rainfall
-4
-4°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
78
78 mm of monthly rainfall
3
3 (Moderate) UV index

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Marion weather in March

Expect daytime maximum temperatures of 14°C in Marion, Illinois in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 124 mm of rainfall in the month.

14
14°C max day temperature
6
6 hours of sunshine per day
12
12 days with some rainfall
2
2°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
124
124 mm of monthly rainfall
5
5 (Moderate) UV index

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Marion weather in April

Expect daytime maximum temperatures of 20°C in Marion, Illinois in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 110 mm of rainfall in the month.

20
20°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
8
8°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
110
110 mm of monthly rainfall
7
7 (High) UV index

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Marion weather in May

Expect daytime maximum temperatures of 25°C in Marion, Illinois in May based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 124 mm of rainfall in the month.

25
25°C max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
12
12°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
124
124 mm of monthly rainfall
8
8 (Very High) UV index

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Marion weather in June

Expect daytime maximum temperatures of 30°C in Marion, Illinois in June based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 96 mm of rainfall in the month.

30
30°C max day temperature
10
10 hours of sunshine per day
9
9 days with some rainfall
17
17°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
96
96 mm of monthly rainfall
9
9 (Very High) UV index

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Marion weather in July

Expect daytime maximum temperatures of 32°C in Marion, Illinois in July and high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 100 mm of rainfall in the month.

32
32°C max day temperature
10
10 hours of sunshine per day
9
9 days with some rainfall
19
19°C min night temperature
14
14 hours of daylight per day
H
High heat & humidity
100
100 mm of monthly rainfall
10
10 (Very High) UV index

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Marion weather in August

Expect daytime maximum temperatures of 31°C in Marion, Illinois in August and high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 88 mm of rainfall in the month.

31
31°C max day temperature
10
10 hours of sunshine per day
8
8 days with some rainfall
18
18°C min night temperature
14
14 hours of daylight per day
H
High heat & humidity
88
88 mm of monthly rainfall
9
9 (Very High) UV index

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Marion weather in September

Expect daytime maximum temperatures of 27°C in Marion, Illinois in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 81 mm of rainfall in the month.

27
27°C max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
14
14°C min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
81
81 mm of monthly rainfall
7
7 (High) UV index

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Marion weather in October

Expect daytime maximum temperatures of 21°C in Marion, Illinois in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 75 mm of rainfall in the month.

21
21°C max day temperature
7
7 hours of sunshine per day
8
8 days with some rainfall
7
7°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
75
75 mm of monthly rainfall
5
5 (Moderate) UV index

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Marion weather in November

Expect daytime maximum temperatures of 14°C in Marion, Illinois in November based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 104 mm of rainfall in the month.

14
14°C max day temperature
5
5 hours of sunshine per day
10
10 days with some rainfall
2
2°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
104
104 mm of monthly rainfall
3
3 (Moderate) UV index

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Marion weather in December

Expect daytime maximum temperatures of 7°C in Marion, Illinois in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 10 days with some rainfall and typically 102 mm of rainfall in the month.