Marion weather by month

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

Temperature in Marion (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
39°F maximum daytime temperature in January in Marion39
45°F maximum daytime temperature in February in Marion45
57°F maximum daytime temperature in March in Marion57
68°F maximum daytime temperature in April in Marion68
77°F maximum daytime temperature in May in Marion77
86°F maximum daytime temperature in June in Marion86
90°F maximum daytime temperature in July in Marion90
88°F maximum daytime temperature in August in Marion88
81°F maximum daytime temperature in September in Marion81
70°F maximum daytime temperature in October in Marion70
57°F maximum daytime temperature in November in Marion57
45°F maximum daytime temperature in December in Marion45
Min temperature (night-time)
21°F minimum night-time temperature in January in Marion21
25°F minimum night-time temperature in February in Marion25
36°F minimum night-time temperature in March in Marion36
46°F minimum night-time temperature in April in Marion46
54°F minimum night-time temperature in May in Marion54
63°F minimum night-time temperature in June in Marion63
66°F minimum night-time temperature in July in Marion66
64°F minimum night-time temperature in August in Marion64
57°F minimum night-time temperature in September in Marion57
45°F minimum night-time temperature in October in Marion45
36°F minimum night-time temperature in November in Marion36
27°F minimum night-time temperature in December in Marion27
Heat & Humidity
No heat & humidity in January in Marion0
No heat & humidity in February in Marion0
No heat & humidity in March in Marion0
No heat & humidity in April in Marion0
No heat & humidity in May in Marion0
Moderate heat & humidity in June in MarionM
High heat & humidity in July in MarionH
High heat & humidity in August in MarionH
Low heat & humidity in September in MarionL
No heat & humidity in October in Marion0
No heat & humidity in November in Marion0
No heat & humidity in December in Marion0

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

Sunshine & Daylight in Marion

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Marion10
11 hours of daylight per day in February in Marion11
12 hours of daylight per day in March in Marion12
13 hours of daylight per day in April in Marion13
14 hours of daylight per day in May in Marion14
15 hours of daylight per day in June in Marion15
14 hours of daylight per day in July in Marion14
14 hours of daylight per day in August in Marion14
12 hours of daylight per day in September in Marion12
11 hours of daylight per day in October in Marion11
10 hours of daylight per day in November in Marion10
10 hours of daylight per day in December in Marion10
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Marion2
UV (maximum) index 3 (Moderate) in February in Marion3
UV (maximum) index 5 (Moderate) in March in Marion5
UV (maximum) index 7 (High) in April in Marion7
UV (maximum) index 8 (Very High) in May in Marion8
UV (maximum) index 9 (Very High) in June in Marion9
UV (maximum) index 10 (Very High) in July in Marion10
UV (maximum) index 9 (Very High) in August in Marion9
UV (maximum) index 7 (High) in September in Marion7
UV (maximum) index 5 (Moderate) in October in Marion5
UV (maximum) index 3 (Moderate) in November in Marion3
UV (maximum) index 2 (Low) in December in Marion2

Rainfall in Marion

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
9 days with some rainfall in January in Marion9
9 days with some rainfall in February in Marion9
12 days with some rainfall in March in Marion12
11 days with some rainfall in April in Marion11
10 days with some rainfall in May in Marion10
9 days with some rainfall in June in Marion9
9 days with some rainfall in July in Marion9
8 days with some rainfall in August in Marion8
8 days with some rainfall in September in Marion8
8 days with some rainfall in October in Marion8
10 days with some rainfall in November in Marion10
10 days with some rainfall in December in Marion10
Average monthly rainfall (inches)
2.8 inches monthly rainfall in January in Marion2.8
3.1 inches monthly rainfall in February in Marion3.1
4.9 inches monthly rainfall in March in Marion4.9
4.3 inches monthly rainfall in April in Marion4.3
4.9 inches monthly rainfall in May in Marion4.9
3.8 inches monthly rainfall in June in Marion3.8
3.9 inches monthly rainfall in July in Marion3.9
3.5 inches monthly rainfall in August in Marion3.5
3.2 inches monthly rainfall in September in Marion3.2
3.0 inches monthly rainfall in October in Marion3.0
4.1 inches monthly rainfall in November in Marion4.1
4.0 inches monthly rainfall in December in Marion4.0

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.

Metric (°C)  |  Imperial (°F)

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Tropical storm risk: Marion, Illinois hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
0
0
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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More about the USA

Compare Marion with the USA

Below the Marion chart shows average maximum daytime temperature for Marion, Illinois, USA and the USA (Washington).

Maximum daytime temperature (°F)

Marion, Illinois, USA
USA (Washington)
39
41
45
45
57
55
68
66
77
75
86
84
90
88
88
86
81
79
70
68
57
57
45
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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