Climate and monthly weather forecast
Phoenix, AZ

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

Weather in January

January, like December, in Phoenix, Arizona, is another enjoyable winter month, with temperature in the range of an average high of 64.2°F (17.9°C) and an average low of 47.5°F (8.6°C). In Phoenix, the average high-temperature in January 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 an average temperature ranging between min 50.2°F (10.1°C) and max 67.6°F (19.8°C). In February, the average high-temperature is relatively the same as in January - a still comfortable 67.6°F (19.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a moderately hot month in Phoenix, Arizona, with an average temperature varying between 76.1°F (24.5°C) and 55.9°F (13.3°C). In Phoenix, the average high-temperature in March 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 a moderately hot spring month, with an average temperature ranging between min 61.3°F (16.3°C) and max 83.1°F (28.4°C). In April, the average high-temperature slightly increases from 76.1°F (24.5°C) in March to a still moderately hot 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 an average temperature varying between 67.6°F (19.8°C) and 90.9°F (32.7°C). In Phoenix, Arizona, the average high-temperature in May marginally rises from a warm 83.1°F (28.4°C) in April to a hot 90.9°F (32.7°C). Weather in May »

Weather in June

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

Weather in July

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

Weather in August

The last month of the summer, August, is another torrid month in Phoenix, Arizona, with an average temperature fluctuating between 102.6°F (39.2°C) and 84.7°F (29.3°C). In Phoenix, Arizona, the average high-temperature in August is practically the same as in July - a still sweltering 102.6°F (39.2°C). Weather in August »

Weather in September

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

Weather in October

October, the same as September, is another warm autumn month in Phoenix, Arizona, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 85.1°F (29.5°C). In Phoenix, the average high-temperature in October drops from a sweltering 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 another warm month, with an average temperature fluctuating between 56.3°F (13.5°C) and 73.6°F (23.1°C). In November, the average high-temperature drops 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

The first month of the winter, December, is still a comfortable month in Phoenix, Arizona, with an average temperature fluctuating between 63°F (17.2°C) and 47.8°F (8.8°C). With an average high-temperature of 63°F (17.2°C) and an average low-temperature of 47.8°F (8.8°C), December is the coldest month. Weather in December »
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FAQ

How many days does it rain in Phoenix?

Throughout the year, in Phoenix, there are 44.6 rainfall days, and 5.04" (128mm) of precipitation is accumulated.

When it does not snow in Phoenix?

January through August, October through December are months without snowfall in Phoenix, Arizona.

How much does it snow in Phoenix?

Throughout the year, 0.04" (1mm) of snow is accumulated.

What is the driest month in Phoenix?

The months with the least rainfall in Phoenix are May and June Rain falls for 1.3 days and accumulates 0.08" (2mm) of rain.

When is the highest UV index in Phoenix?

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

What is the least humid month in Phoenix?

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

When are the longest days in Phoenix?

With an average of 14h and 20min of daylight, June has the longest days of the year in Phoenix, Arizona.

What month has the most sunshine in Phoenix?

The month with the most sunshine is June, with an average of 12.1h of sunshine.

What is the warmest month in Phoenix?

July is the warmest month in Phoenix, Arizona, 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, Arizona. Rain falls for 7.8 days and accumulates 0.75" (19mm) of precipitation.

When does it snow in Phoenix?

The only month with snowfall is September.

What is the snowiest month in Phoenix?

The month with the most snowfall 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.

What is the month with the shortest days in Phoenix?

The month with the shortest days is December, with an average of 9h and 59min of daylight.

Is there Daylight Saving Time (DST) in Phoenix?

Phoenix does not observe Daylight Saving Time (DST). MST timezone is used over the entire year.

What is the month with the least sunshine in Phoenix?

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

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

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

Average temperature
Phoenix, AZ

Average temperature - Phoenix, AZ

The warmest month (with the highest average high temperature) is July (103.6°F).
The month with the lowest average high temperature is December (63°F).

The month with the highest average low temperature is August (84.7°F).
The coldest month (with the lowest average low temperature) is January (47.5°F).

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Average pressure
Phoenix, AZ

Average pressure - Phoenix, AZ

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

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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 (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).

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Average rainfall
Phoenix, AZ

Average rainfall - Phoenix, AZ

The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are May and June (0.08").

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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 (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0").

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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).
The 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: 14h and 20min).
The month with the shortest days is December (Average daylight: 9h and 59min).

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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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

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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