Monthly weather forecast and climate
Phoenix, AZ

The city of Phoenix, Arizona at dusk
The city of Phoenix, Arizona at dusk

Weather in January

January, the same as December, is another enjoyable winter month in Phoenix, Arizona, with average temperature fluctuating between 64.2°F (17.9°C) and 47.5°F (8.6°C). In January, the average high-temperature is essentially the same as in December - a still comfortable 64.2°F (17.9°C). Weather in January »

Weather in February

February, the last month of the winter, in Phoenix, is another comfortable month, with average temperature ranging between min 50.2°F (10.1°C) and max 67.6°F (19.8°C). In Phoenix, the average high-temperature in February is practically the same as in January - a still enjoyable 67.6°F (19.8°C). Weather in February »

Weather in March

March, the first month of the spring, in Phoenix, is a warm month, with average temperature ranging between min 55.9°F (13.3°C) and max 76.1°F (24.5°C). In March, the average high-temperature slightly increases, from a comfortable 67.6°F (19.8°C) in February, to a warm 76.1°F (24.5°C). Weather in March »

Weather in April

April, like March, in Phoenix, Arizona, is another warm spring month, with average temperature fluctuating between 83.1°F (28.4°C) and 61.3°F (16.3°C). In Phoenix, the average high-temperature slightly increases, from 76.1°F (24.5°C) in March, to a still warm 83.1°F (28.4°C). Weather in April »

Weather in May

May, the last month of the spring, in Phoenix, is a hot month, with average temperature fluctuating between 90.9°F (32.7°C) and 67.6°F (19.8°C). In May, the average high-temperature slightly increases, from a moderately hot 83.1°F (28.4°C) in April, to a tropical 90.9°F (32.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a torrid month in Phoenix, Arizona, with average temperature fluctuating between 76.6°F (24.8°C) and 102°F (38.9°C). In June, the average high-temperature increases, from a hot 90.9°F (32.7°C) in May, to a sweltering 102°F (38.9°C). Weather in June »

Weather in July

July, like June, in Phoenix, Arizona, is a very hot summer month, with average temperature fluctuating between 103.6°F (39.8°C) and 84°F (28.9°C). July is the warmest month, with an average high-temperature of 103.6°F (39.8°C) and an average low-temperature of 84°F (28.9°C). Weather in July »

Weather in August

The last month of the summer, August, is another very hot month in Phoenix, Arizona, with average temperature ranging between min 84.7°F (29.3°C) and max 102.6°F (39.2°C). In Phoenix, the average high-temperature in August is relatively the same as in July - a still sweltering 102.6°F (39.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a sweltering month in Phoenix, Arizona, with average temperature ranging between min 78.8°F (26°C) and max 96.3°F (35.7°C). In Phoenix, the average high-temperature in September slightly decreases, from a torrid 102.6°F (39.2°C) in August, to a still very hot 96.3°F (35.7°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Phoenix, Arizona, with average temperature varying between 67.3°F (19.6°C) and 85.1°F (29.5°C). In Phoenix, the average high-temperature drops, from a very hot 96.3°F (35.7°C) in September, to a warm 85.1°F (29.5°C). Weather in October »

Weather in November

November, the last month of the autumn, in Phoenix, is also a moderately hot month, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 73.6°F (23.1°C). In November, the average high-temperature decreases, from a moderately hot 85.1°F (29.5°C) in October, to a still warm 73.6°F (23.1°C). Weather in November »

Weather in December

December, the first month of the winter, in Phoenix, is also an enjoyable month, with average temperature ranging between max 63°F (17.2°C) and min 47.8°F (8.8°C). December is the coldest month, with an average high-temperature of 63°F (17.2°C) and an average low-temperature of 47.8°F (8.8°C). Weather in December »
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FAQ

How many days does it rain in Phoenix?

In Phoenix, during the entire year, the rain falls for 44.6 days and collects up to 5.04" (128mm) of precipitation.

When it does not snow in Phoenix?

January through August, October through December are months without snowfall.

How much does it snow in Phoenix?

In Phoenix, during the entire year, snow aggregates up to 0.04" (1mm).

What is the driest month in Phoenix?

May and June are months with the least rain in Phoenix when the rain falls for 1.3 days and typically aggregates up to 0.08" (2mm) of rain.

When is the highest UV index in Phoenix?

May through August, with an average maximum UV index of 8, are months with the highest UV index in Phoenix.

What is the least humid month in Phoenix?

June is the least humid month in Phoenix, with an average relative humidity of 16%.

When are the longest days in Phoenix?

June has the longest days of the year in Phoenix, with an average of 14.3h of daylight.

What month has the most sunshine in Phoenix?

June has the most sunshine of the year in Phoenix, with an average of 12.1h of sunshine.

What is the warmest month in Phoenix?

The warmest month is July, with an average high-temperature of 103.6°F (39.8°C) and an average low-temperature of 84°F (28.9°C).

What is the wettest month in Phoenix?

July is the month with the most rainfall in Phoenix. Rain falls for 7.8 days and accumulates 0.75" (19mm) of precipitation.

When does it snow in Phoenix?

September is the only month when snow falls in Phoenix, Arizona.

What is the snowiest month in Phoenix?

The month with the most snowfall in Phoenix, Arizona, is September when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.

What is the coldest month in Phoenix?

The coldest month is December, with an average high-temperature of 63°F (17.2°C) and an average low-temperature of 47.8°F (8.8°C).

What is the most humid month in Phoenix?

With an average relative humidity of 43%, December is the most humid month in Phoenix, Arizona.

What is the month with the shortest days in Phoenix?

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

What is the month with the least sunshine in Phoenix?

With an average of 6.8h of sunshine, December has the least sunshine of the year.

What is the month with the lowest UV index in Phoenix?

December is the month with the lowest UV index in Phoenix, with an average maximum UV index of 3.

Average temperature
Phoenix, AZ

Average temperature - Phoenix, AZ

The warmest month (with the highest average high temperature) is July (39.8°C).
The month with the lowest average high temperature is December (17.2°C).

The month with the highest average low temperature is August (29.3°C).
The coldest month (with the lowest average low temperature) is January (8.6°C).

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Average pressure
Phoenix, AZ

Average pressure - Phoenix, AZ

The month with the highest atmospheric pressure is January (1018.9mbar).
The month with the lowest atmospheric pressure is June (1009.5mbar).

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Average wind speed
Phoenix, AZ

Average wind speed - Phoenix, AZ

The windiest month (with the highest average wind speed) is April (10.3km/h).
The calmest month (with the lowest average wind speed) is December (7km/h).

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Average rainfall
Phoenix, AZ

Average rainfall - Phoenix, AZ

The wettest month (with the highest rainfall) is July (19mm).
The driest months (with the least rainfall) are May and June (2mm).

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Average rainfall days
Phoenix, AZ

Average rainfall days - Phoenix, AZ

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (0.8 days).

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Average snowfall
Phoenix, AZ

Average snowfall - Phoenix, AZ

The month with the highest snowfall is September (1mm).
Months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).

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Average snowfall days
Phoenix, AZ

Average snowfall days - Phoenix, AZ

The month with the highest number of snowfall days is September (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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Average daylight / Average sunshine
Phoenix, AZ

Average daylight / Average sunshine - Phoenix, AZ

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

The month with the most sunshine is June (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days
Phoenix, AZ

Average sunshine days - Phoenix, AZ

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (21.1 days).

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Average visibility
Phoenix, AZ

Average visibility - Phoenix, AZ

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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