Annual mean 23°C · wettest around March · prevailing wind SW
Warmest
38.8 °C
Coldest
15.5 °C
Wettest
15%
Windiest
3.8 m/s
Prevailing
SW
3.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Fountain Hills over the whole year is 23°C. July is the hottest month, with highs of about 39°C; January is the coldest, with lows of about 7°C. Fountain Hills has no sharply defined rainy season: the chance of rain on a given day runs from 6% in May, the driest month, to 16% in March, the wettest. Winds in Fountain Hills are highest in May, averaging 3.2 m/s (12 km/h), and lightest in December, at 2.0 m/s (7 km/h). The prevailing wind is from the SW. The clearest skies in Fountain Hills come in June, when the sky is typically 14% covered; March is the cloudiest month, at 30%.
Month by month Fountain Hills climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
16°C
7°C
13°C
14%
29%
2.1 m/s
40
0
85
February
18°C
9°C
14°C
14%
27%
2.5 m/s
54
1
82
March
22°C
11°C
17°C
16%
30%
2.7 m/s
69
9
78
April
27°C
16°C
23°C
10%
19%
3.0 m/s
74
40
48
May
31°C
21°C
27°C
6%
15%
3.2 m/s
52
64
23
June
38°C
27°C
33°C
8%
14%
3.1 m/s
10
47
3
July
39°C
30°C
37°C
13%
26%
3.2 m/s
3
15
1
August
37°C
29°C
37°C
12%
27%
2.9 m/s
4
16
1
September
35°C
25°C
33°C
11%
20%
2.6 m/s
13
43
4
October
30°C
18°C
26°C
10%
16%
2.3 m/s
50
60
26
November
23°C
12°C
19°C
12%
20%
2.1 m/s
78
18
71
December
17°C
8°C
14°C
15%
28%
2.0 m/s
51
1
86
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Fountain Hills weather by season
Year round, Fountain Hills has days of about 16°C at their warmest in January, its coolest month, and 39°C in July, its warmest; the coolest hours of the day run from 7°C to 30°C through the year, and the average temperature over the year is 23°C around the clock. Rain is most likely around March and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Fountain Hills weather in winterDecember to February
High 17°CLow 8°CRain 14%
Winter in Fountain Hills has typical daily highs of about 17°C and lows of about 8°C, with a 14% chance of rain on a given day.
Fountain Hills weather in springMarch to May
High 27°CLow 16°CRain 11%
Spring in Fountain Hills has typical daily highs of about 27°C and lows of about 16°C, with a 11% chance of rain on a given day.
Fountain Hills weather in summerJune to August
High 38°CLow 29°CRain 11%
Summer in Fountain Hills has typical daily highs of about 38°C and lows of about 29°C, with a 11% chance of rain on a given day.
Fountain Hills weather in autumnSeptember to November
High 29°CLow 18°CRain 11%
Autumn in Fountain Hills has typical daily highs of about 29°C and lows of about 18°C, with a 11% chance of rain on a given day.
When is the rainy season in Fountain Hills?
Fountain Hills has no sharply defined rainy season: the chance of rain on a given day runs from 6% in May, the driest month, to 16% in March, the wettest.
What time of year is Fountain Hills windiest?
Winds in Fountain Hills are highest in May, averaging 3.2 m/s (12 km/h), and lightest in December, at 2.0 m/s (7 km/h). The prevailing wind is from the SW.
What is the average temperature in Fountain Hills year round?
The average temperature in Fountain Hills over the whole year is 23°C. July is the hottest month, with highs of about 39°C; January is the coldest, with lows of about 7°C.