Fountain Hills
Arizona, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Fountain Hills, AZ

January is a comfortable winter month in Fountain Hills, Arizona, with average temperature varying between 44.6°F (7°C) and 61.7°F (16.5°C). In Fountain Hills, Arizona, the average high-temperature in January is essentially the same as in December - a comfortable 61.7°F (16.5°C). Weather in January »

February, the last month of the winter, in Fountain Hills, is another comfortable month, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 46.9°F (8.3°C). In February, the average high-temperature is essentially the same as in January - a still comfortable 64°F (17.8°C). Weather in February »

March, the first month of the spring, in Fountain Hills, is an agreeable month, with average temperature fluctuating between 51.8°F (11°C) and 72.7°F (22.6°C). In Fountain Hills, the average high-temperature slightly increases, from an enjoyable 64°F (17.8°C) in February, to an agreeable 72.7°F (22.6°C). Weather in March »

April is a warm spring month in Fountain Hills, Arizona, with average temperature fluctuating between 56.8°F (13.8°C) and 79.3°F (26.3°C). In April, the average high-temperature slightly increases, from a pleasant 72.7°F (22.6°C) in March, to a moderately hot 79.3°F (26.3°C). Weather in April »

The last month of the spring, May, is a hot month in Fountain Hills, Arizona, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 63.1°F (17.3°C). In May, the average high-temperature slightly increases, from a warm 79.3°F (26.3°C) in April, to a hot 86.7°F (30.4°C). Weather in May »

June, the first month of the summer, in Fountain Hills, is a torrid month, with average temperature fluctuating between 98.2°F (36.8°C) and 71.6°F (22°C). In Fountain Hills, the average high-temperature rises, from a hot 86.7°F (30.4°C) in May, to a very hot 98.2°F (36.8°C). Weather in June »

July, like June, in Fountain Hills, Arizona, is a very hot summer month, with average temperature varying between 79.7°F (26.5°C) and 99.1°F (37.3°C). July is the warmest month, with an average high-temperature of 99.1°F (37.3°C) and an average low-temperature of 79.7°F (26.5°C). Weather in July »

August, the last month of the summer, in Fountain Hills, is another very hot month, with temperature in the range of an average high of 98.2°F (36.8°C) and an average low of 80.4°F (26.9°C). In Fountain Hills, the average high-temperature is almost the same as in July - a still very hot 98.2°F (36.8°C). Weather in August »

September, the first month of the autumn, in Fountain Hills, is still a tropical month, with average temperature varying between 74.7°F (23.7°C) and 92.5°F (33.6°C). In Fountain Hills, the average high-temperature in September slightly decreases, from a torrid 98.2°F (36.8°C) in August, to a hot 92.5°F (33.6°C). Weather in September »

October, like September, in Fountain Hills, Arizona, is another warm autumn month, with average temperature varying between 81.9°F (27.7°C) and 63°F (17.2°C). In October, the average high-temperature decreases, from a hot 92.5°F (33.6°C) in September, to a warm 81.9°F (27.7°C). Weather in October »

The last month of the autumn, November, is another pleasant month in Fountain Hills, Arizona, with average temperature fluctuating between 70.9°F (21.6°C) and 52.7°F (11.5°C). In Fountain Hills, the average high-temperature in November decreases, from a moderately hot 81.9°F (27.7°C) in October, to an agreeable 70.9°F (21.6°C). Weather in November »

The first month of the winter, December, is also a moderate month in Fountain Hills, Arizona, with average temperature ranging between min 44.2°F (6.8°C) and max 60.3°F (15.7°C). With an average high-temperature of 60.3°F (15.7°C) and an average low-temperature of 44.2°F (6.8°C), December is the coldest month. Weather in December »

How much does it rain in Fountain Hills?

Throughout the year, there are 67.9 rainfall days, and 10" (254mm) of precipitation is accumulated.

What is the driest month in Fountain Hills?

May and June are months with the least rain in Fountain Hills, Arizona, when the rain falls for 2.7 days and typically aggregates up to 0.12" (3mm) of rain.

What is the least humid month in Fountain Hills?

June is the least humid month in Fountain Hills, Arizona, with an average relative humidity of 17%.

When are the longest days in Fountain Hills?

June has the longest days of the year in Fountain Hills, with an average of 14.4h of daylight.

What month has the most sunshine in Fountain Hills?

With an average of 12.2h of sunshine, June has the most sunshine of the year in Fountain Hills.

When is the highest UV index in Fountain Hills?

Months with the highest UV index are June through August, with an average maximum UV index of 8.

What is the warmest month in Fountain Hills?

July is the warmest month in Fountain Hills, with an average high-temperature of 99.1°F (37.3°C) and an average low-temperature of 79.7°F (26.5°C).

What is the wettest month in Fountain Hills?

The month with the most rainfall in Fountain Hills is July when the rain falls for 12.2 days and typically aggregates up to 1.54" (39mm) of precipitation.

What is the coldest month in Fountain Hills?

The coldest month is December, with an average high-temperature of 60.3°F (15.7°C) and an average low-temperature of 44.2°F (6.8°C).

What is the most humid month in Fountain Hills?

With an average relative humidity of 46%, December is the most humid month in Fountain Hills.

What is the month with the shortest days in Fountain Hills?

With an average of 10h of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Fountain Hills?

The month with the least sunshine is December, with an average of 6.8h of sunshine.

When is the lowest UV index in Fountain Hills?

With an average maximum UV index of 3, December is the month with the lowest UV index in Fountain Hills.
Average temperature - Fountain Hills, AZ
Average humidity - Fountain Hills, AZ
Average rainfall - Fountain Hills, AZ

The wettest month (with the highest rainfall) is July (1.54").
The driest months (with the least rainfall) are May and June (0.12").

Average rainfall days - Fountain Hills, AZ
Average daylight / Average sunshine - Fountain Hills, AZ

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

The month with the most sunshine is June (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.8h).