St George weather by month

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

Temperature
Rainfall
Sunshine & UV index

Temperature in St George (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	11	16	19	24	30	35	38	37	33	27	18	12
Min temperature (night-time)	-3	0	3	7	12	17	21	20	14	7	1	-3
Heat & Humidity	0	0	0	0	L	H	VH	VH	H	L	0	0

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

Sunshine & UV index in St George

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

Rainfall in St George

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	4	4	5	4	3	2	4	4	3	3	3	4
Average monthly rainfall (mm)	26	24	27	13	11	5	16	19	14	15	19	18

More about St George

St George by month

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

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The climate guide for Utah (St George) 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 St George?

St George has a cool desert climate with hot summers.

St George weather in January

Expect daytime maximum temperatures of 11°C in St George, Utah in January based on long-term weather averages. There are 7 hours of sunshine per day on average.

11
11°C max day temperature
7
7 hours of sunshine per day
4
4 days with some rainfall
-3
-3°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
26
26 mm of monthly rainfall
2
2 (Low) UV index

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St George weather in February

Expect daytime maximum temperatures of 16°C in St George, Utah in February based on long-term weather averages. There are 8 hours of sunshine per day on average.

16
16°C max day temperature
8
8 hours of sunshine per day
4
4 days with some rainfall
0
0°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
24
24 mm of monthly rainfall
4
4 (Moderate) UV index

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St George weather in March

Expect daytime maximum temperatures of 19°C in St George, Utah in March based on long-term weather averages. There are 9 hours of sunshine per day on average.

19
19°C max day temperature
9
9 hours of sunshine per day
5
5 days with some rainfall
3
3°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
27
27 mm of monthly rainfall
6
6 (High) UV index

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St George weather in April

Expect daytime maximum temperatures of 24°C in St George, Utah in April based on long-term weather averages. There are 11 hours of sunshine per day on average.

24
24°C max day temperature
11
11 hours of sunshine per day
4
4 days with some rainfall
7
7°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
13
13 mm of monthly rainfall
7
7 (High) UV index

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St George weather in May

Expect daytime maximum temperatures of 30°C in St George, Utah in May based on long-term weather averages. There are 12 hours of sunshine per day on average.

30
30°C max day temperature
12
12 hours of sunshine per day
3
3 days with some rainfall
12
12°C min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
11
11 mm of monthly rainfall
9
9 (Very High) UV index

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St George weather in June

Expect daytime maximum temperatures of 35°C in St George, Utah in June and high heat and humidity based on long-term weather averages. There are 13 hours of sunshine per day on average.

35
35°C max day temperature
13
13 hours of sunshine per day
2
2 days with some rainfall
17
17°C min night temperature
15
15 hours of daylight per day
H
High heat & humidity
5
5 mm of monthly rainfall
10
10 (Very High) UV index

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St George weather in July

Expect daytime maximum temperatures of 38°C in St George, Utah in July and very high heat and humidity based on long-term weather averages. There are 12 hours of sunshine per day on average.

38
38°C max day temperature
12
12 hours of sunshine per day
4
4 days with some rainfall
21
21°C min night temperature
14
14 hours of daylight per day
VH
Very High heat & humidity
16
16 mm of monthly rainfall
11
11 (Extreme) UV index

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St George weather in August

Expect daytime maximum temperatures of 37°C in St George, Utah in August and very high heat and humidity based on long-term weather averages. There are 11 hours of sunshine per day on average.

37
37°C max day temperature
11
11 hours of sunshine per day
4
4 days with some rainfall
20
20°C min night temperature
14
14 hours of daylight per day
VH
Very High heat & humidity
19
19 mm of monthly rainfall
10
10 (Very High) UV index

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St George weather in September

Expect daytime maximum temperatures of 33°C in St George, Utah in September and high heat and humidity based on long-term weather averages. There are 11 hours of sunshine per day on average.

33
33°C max day temperature
11
11 hours of sunshine per day
3
3 days with some rainfall
14
14°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
14
14 mm of monthly rainfall
8
8 (Very High) UV index

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St George weather in October

Expect daytime maximum temperatures of 27°C in St George, Utah in October based on long-term weather averages. There are 9 hours of sunshine per day on average.

27
27°C max day temperature
9
9 hours of sunshine per day
3
3 days with some rainfall
7
7°C min night temperature
11
11 hours of daylight per day
L
Low heat & humidity
15
15 mm of monthly rainfall
5
5 (Moderate) UV index

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St George weather in November

Expect daytime maximum temperatures of 18°C in St George, Utah in November based on long-term weather averages. There are 8 hours of sunshine per day on average.

18
18°C max day temperature
8
8 hours of sunshine per day
3
3 days with some rainfall
1
1°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
19
19 mm of monthly rainfall
3
3 (Moderate) UV index

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St George weather in December

Expect daytime maximum temperatures of 12°C in St George, Utah in December based on long-term weather averages. There are 7 hours of sunshine per day on average.