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 (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	52	61	66	75	86	95	100	99	91	81	64	54
Min temperature (night-time)	27	32	37	45	54	63	70	68	57	45	34	27
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 (inches)	1.0	0.9	1.1	0.5	0.4	0.2	0.6	0.7	0.6	0.6	0.7	0.7

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 52°F in St George, Utah in January based on long-term weather averages. There are 7 hours of sunshine per day on average.

52
52°F max day temperature
7
7 hours of sunshine per day
4
4 days with some rainfall
27
27°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
1.0
1.0 inches of monthly rainfall
2
2 (Low) UV index

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St George weather in February

Expect daytime maximum temperatures of 61°F in St George, Utah in February based on long-term weather averages. There are 8 hours of sunshine per day on average.

61
61°F max day temperature
8
8 hours of sunshine per day
4
4 days with some rainfall
32
32°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
0.9
0.9 inches of monthly rainfall
4
4 (Moderate) UV index

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St George weather in March

Expect daytime maximum temperatures of 66°F in St George, Utah in March based on long-term weather averages. There are 9 hours of sunshine per day on average.

66
66°F max day temperature
9
9 hours of sunshine per day
5
5 days with some rainfall
37
37°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
1.1
1.1 inches of monthly rainfall
6
6 (High) UV index

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St George weather in April

Expect daytime maximum temperatures of 75°F in St George, Utah in April based on long-term weather averages. There are 11 hours of sunshine per day on average.

75
75°F max day temperature
11
11 hours of sunshine per day
4
4 days with some rainfall
45
45°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
0.5
0.5 inches of monthly rainfall
7
7 (High) UV index

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St George weather in May

Expect daytime maximum temperatures of 86°F in St George, Utah in May based on long-term weather averages. There are 12 hours of sunshine per day on average.

86
86°F max day temperature
12
12 hours of sunshine per day
3
3 days with some rainfall
54
54°F min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
0.4
0.4 inches of monthly rainfall
9
9 (Very High) UV index

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St George weather in June

Expect daytime maximum temperatures of 95°F 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.

95
95°F max day temperature
13
13 hours of sunshine per day
2
2 days with some rainfall
63
63°F min night temperature
15
15 hours of daylight per day
H
High heat & humidity
0.2
0.2 inches of monthly rainfall
10
10 (Very High) UV index

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St George weather in July

Expect daytime maximum temperatures of 100°F 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.

100
100°F max day temperature
12
12 hours of sunshine per day
4
4 days with some rainfall
70
70°F min night temperature
14
14 hours of daylight per day
VH
Very High heat & humidity
0.6
0.6 inches of monthly rainfall
11
11 (Extreme) UV index

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St George weather in August

Expect daytime maximum temperatures of 99°F 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.

99
99°F max day temperature
11
11 hours of sunshine per day
4
4 days with some rainfall
68
68°F min night temperature
14
14 hours of daylight per day
VH
Very High heat & humidity
0.7
0.7 inches of monthly rainfall
10
10 (Very High) UV index

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St George weather in September

Expect daytime maximum temperatures of 91°F 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.

91
91°F max day temperature
11
11 hours of sunshine per day
3
3 days with some rainfall
57
57°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
0.6
0.6 inches of monthly rainfall
8
8 (Very High) UV index

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St George weather in October

Expect daytime maximum temperatures of 81°F in St George, Utah in October based on long-term weather averages. There are 9 hours of sunshine per day on average.

81
81°F max day temperature
9
9 hours of sunshine per day
3
3 days with some rainfall
45
45°F min night temperature
11
11 hours of daylight per day
L
Low heat & humidity
0.6
0.6 inches of monthly rainfall
5
5 (Moderate) UV index

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St George weather in November

Expect daytime maximum temperatures of 64°F in St George, Utah in November based on long-term weather averages. There are 8 hours of sunshine per day on average.

64
64°F max day temperature
8
8 hours of sunshine per day
3
3 days with some rainfall
34
34°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
0.7
0.7 inches of monthly rainfall
3
3 (Moderate) UV index

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St George weather in December

Expect daytime maximum temperatures of 54°F in St George, Utah in December based on long-term weather averages. There are 7 hours of sunshine per day on average.