Dubuque weather by month

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

Temperature
Rainfall
Sunshine & UV index

Temperature in Dubuque (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	-4	-1	6	15	21	26	29	27	23	16	7	-1
Min temperature (night-time)	-14	-11	-4	3	9	14	17	15	11	5	-2	-10
Heat & Humidity	0	0	0	0	0	L	M	M	0	0	0	0

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

Sunshine & UV index in Dubuque

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	5	7	7	8	10	11	10	10	8	7	5	4
Daily hours of daylight	9	11	12	13	15	15	15	14	12	11	10	9
UV Index (Maximum)	1	2	4	6	7	8	9	8	6	3	2	1

Rainfall in Dubuque

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	9	8	10	12	11	10	10	9	9	9	9	10
Average monthly rainfall (mm)	27	29	63	86	99	105	101	113	105	65	61	42

More about Dubuque

Dubuque by month

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

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The climate guide for Iowa (Dubuque) 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 Dubuque?

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

Dubuque weather in January

Expect daytime maximum temperatures of -4°C in Dubuque, Iowa in January based on long-term weather averages. There are 5 hours of sunshine per day on average, which might fall as snow.

-4
-4°C max day temperature
5
5 hours of sunshine per day
9
9 days with some rainfall
-14
-14°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
27
27 mm of monthly rainfall
1
1 (Low) UV index

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Dubuque weather in February

Expect daytime maximum temperatures of -1°C in Dubuque, Iowa in February based on long-term weather averages. There are 7 hours of sunshine per day on average, which might fall as snow.

-1
-1°C max day temperature
7
7 hours of sunshine per day
8
8 days with some rainfall
-11
-11°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
29
29 mm of monthly rainfall
2
2 (Low) UV index

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Dubuque weather in March

Expect daytime maximum temperatures of 6°C in Dubuque, Iowa in March based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 63 mm of rainfall in the month, which might fall as snow.

6
6°C max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
-4
-4°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
63
63 mm of monthly rainfall
4
4 (Moderate) UV index

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Dubuque weather in April

Expect daytime maximum temperatures of 15°C in Dubuque, Iowa in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 86 mm of rainfall in the month.

15
15°C max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
3
3°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
86
86 mm of monthly rainfall
6
6 (High) UV index

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Dubuque weather in May

Expect daytime maximum temperatures of 21°C in Dubuque, Iowa in May based on long-term weather averages. There are 10 hours of sunshine per day on average with 11 days with some rainfall and typically 99 mm of rainfall in the month.

21
21°C max day temperature
10
10 hours of sunshine per day
11
11 days with some rainfall
9
9°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
99
99 mm of monthly rainfall
7
7 (High) UV index

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Dubuque weather in June

Expect daytime maximum temperatures of 26°C in Dubuque, Iowa in June based on long-term weather averages. There are 11 hours of sunshine per day on average with 10 days with some rainfall and typically 105 mm of rainfall in the month.

26
26°C max day temperature
11
11 hours of sunshine per day
10
10 days with some rainfall
14
14°C min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
105
105 mm of monthly rainfall
8
8 (Very High) UV index

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Dubuque weather in July

Expect daytime maximum temperatures of 29°C in Dubuque, Iowa in July based on long-term weather averages. There are 10 hours of sunshine per day on average with 10 days with some rainfall and typically 101 mm of rainfall in the month.

29
29°C max day temperature
10
10 hours of sunshine per day
10
10 days with some rainfall
17
17°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
101
101 mm of monthly rainfall
9
9 (Very High) UV index

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Dubuque weather in August

Expect daytime maximum temperatures of 27°C in Dubuque, Iowa in August based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 113 mm of rainfall in the month.

27
27°C max day temperature
10
10 hours of sunshine per day
9
9 days with some rainfall
15
15°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
113
113 mm of monthly rainfall
8
8 (Very High) UV index

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Dubuque weather in September

Expect daytime maximum temperatures of 23°C in Dubuque, Iowa in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 105 mm of rainfall in the month.

23
23°C max day temperature
8
8 hours of sunshine per day
9
9 days with some rainfall
11
11°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
105
105 mm of monthly rainfall
6
6 (High) UV index

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Dubuque weather in October

Expect daytime maximum temperatures of 16°C in Dubuque, Iowa in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 65 mm of rainfall in the month.

16
16°C max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
5
5°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
65
65 mm of monthly rainfall
3
3 (Moderate) UV index

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Dubuque weather in November

Expect daytime maximum temperatures of 7°C in Dubuque, Iowa in November based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 61 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
-2
-2°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
61
61 mm of monthly rainfall
2
2 (Low) UV index

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Dubuque weather in December

Expect daytime maximum temperatures of -1°C in Dubuque, Iowa 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 42 mm of rainfall in the month, which might fall as snow.