Climate and monthly weather forecast
Sierra Vista, AZ

The vast Sierra Vista region of Arizona
The vast Sierra Vista region of Arizona

Weather in January

January, like December, is another mild winter month in Sierra Vista, Arizona, with an average temperature varying between 57.4°F (14.1°C) and 37.8°F (3.2°C). In Sierra Vista, the average high-temperature in January is essentially the same as in December - a still moderate 57.4°F (14.1°C). Weather in January »

Weather in February

February, the last month of the winter in Sierra Vista, is also a moderate month, with an average temperature varying between 59.7°F (15.4°C) and 39.9°F (4.4°C). In Sierra Vista, Arizona, the average high-temperature in February is essentially the same as in January - a still moderate 59.7°F (15.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Sierra Vista, Arizona, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 45.1°F (7.3°C). In Sierra Vista, the average high-temperature in March slightly increases from a moderate 59.7°F (15.4°C) in February to an enjoyable 67.5°F (19.7°C). Weather in March »

Weather in April

April is a pleasant spring month in Sierra Vista, Arizona, with an average temperature ranging between max 73.2°F (22.9°C) and min 49.1°F (9.5°C). In Sierra Vista, Arizona, the average high-temperature in April marginally rises from an enjoyable 67.5°F (19.7°C) in March to a pleasant 73.2°F (22.9°C). Weather in April »

Weather in May

May, the last month of the spring in Sierra Vista, is a warm month, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 80.1°F (26.7°C). In May, the average high-temperature slightly increases from a pleasant 73.2°F (22.9°C) in April to a warm 80.1°F (26.7°C). Weather in May »

Weather in June

June, the first month of the summer in Sierra Vista, is a hot month, with an average temperature fluctuating between 64.9°F (18.3°C) and 90.1°F (32.3°C). With an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 64.9°F (18.3°C), June is the warmest month. Weather in June »

Weather in July

July, the same as June, in Sierra Vista, Arizona, is another tropical summer month, with temperature in the range of an average low of 69.6°F (20.9°C) and an average high of 86.5°F (30.3°C). In Sierra Vista, the average high-temperature in July is essentially the same as in June - a still tropical 86.5°F (30.3°C). Weather in July »

Weather in August

August, the last month of the summer in Sierra Vista, is also a hot month, with an average temperature ranging between max 86.5°F (30.3°C) and min 68.2°F (20.1°C). In August, the average high-temperature remains equal as in July - a still tropical 86.5°F (30.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Sierra Vista, Arizona, with an average temperature ranging between min 63.1°F (17.3°C) and max 81.7°F (27.6°C). In Sierra Vista, the average high-temperature in September is practically the same as in August - a warm 81.7°F (27.6°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Sierra Vista, Arizona, with an average temperature varying between 75.6°F (24.2°C) and 54.1°F (12.3°C). In Sierra Vista, the average high-temperature in October marginally drops from a moderately hot 81.7°F (27.6°C) in September to a still warm 75.6°F (24.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Sierra Vista, is another comfortable month, with an average temperature varying between 65.5°F (18.6°C) and 45°F (7.2°C). In Sierra Vista, the average high-temperature in November drops from a warm 75.6°F (24.2°C) in October to a comfortable 65.5°F (18.6°C). Weather in November »

Weather in December

December, the first month of the winter in Sierra Vista, is still a mild month, with an average temperature varying between 56.5°F (13.6°C) and 37.8°F (3.2°C). December is the coldest month, with an average high-temperature of 56.5°F (13.6°C) and an average low-temperature of 37.8°F (3.2°C). Weather in December »
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FAQ

How many days does it rain in Sierra Vista?

In Sierra Vista, Arizona, during the entire year, the rain falls for 92.2 days and collects up to 15.47" (393mm) of precipitation.

When does it snow in Sierra Vista?

Months with snowfall are January through March and December.

How much does it snow in Sierra Vista?

Throughout the year, there are 3 snowfall days, and 3.27" (83mm) of snow is accumulated.

What are the months with the lowest UV index in Sierra Vista?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the snowiest month in Sierra Vista?

The month with the most snowfall in Sierra Vista, Arizona, is February, when snow falls for 0.6 days and typically aggregates up to 1.46" (37mm) of snow.

When it does not snow in Sierra Vista?

In Sierra Vista, snow does not fall in April through November.

What is the least humid month in Sierra Vista?

The months with the lowest humidity are May and June, with an average relative humidity of 23%.

What is the driest month in Sierra Vista?

The month with the least rainfall in Sierra Vista is May, when the rain falls for 2.3 days and typically collects 0.12" (3mm) of precipitation.

What is the warmest month in Sierra Vista?

With an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 64.9°F (18.3°C), June is the warmest month in Sierra Vista, Arizona.

When are the longest days in Sierra Vista?

With an average of 14h and 10min of daylight, June has the longest days of the year.

What is the month with the most sunshine in Sierra Vista?

June and August, with an average of 12h of sunshine, are months with the most sunshine.

What is the month with the highest UV index in Sierra Vista?

The month with the highest UV index in Sierra Vista, Arizona, is June, with an average maximum UV index of 7.

What is the rainiest month in Sierra Vista?

The month with the most rainfall is July, when the rain falls for 21.3 days and typically aggregates up to 4.53" (115mm) of precipitation.

What is the most humid month in Sierra Vista?

September is the most humid month in Sierra Vista, with an average relative humidity of 50%.

What is the coldest month in Sierra Vista?

December is the coldest month in Sierra Vista, with an average high-temperature of 56.5°F (13.6°C) and an average low-temperature of 37.8°F (3.2°C).

What is the month with the shortest days in Sierra Vista?

With an average of 10h and 8min of daylight, December has the shortest days of the year.

Is there Daylight Saving Time (DST) in Sierra Vista?

Sierra Vista, Arizona, does not observe Daylight Saving Time (DST). MST timezone is used throughout the entire year.

What is the month with the least sunshine in Sierra Vista?

With an average of 6.9h of sunshine, December has the least sunshine of the year.

Average temperature
Sierra Vista, AZ

Average temperature - Sierra Vista, AZ

The warmest month (with the highest average high temperature) is June (90.1°F).
The month with the lowest average high temperature is December (56.5°F).

The month with the highest average low temperature is July (69.6°F).
The coldest months (with the lowest average low temperature) are January and December (37.8°F).

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Average pressure
Sierra Vista, AZ

Average pressure - Sierra Vista, AZ

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed
Sierra Vista, AZ

Average wind speed - Sierra Vista, AZ

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity
Sierra Vista, AZ

Average humidity - Sierra Vista, AZ

The month with the highest relative humidity is September (50%).
The months with the lowest relative humidity are May and June (23%).

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Average rainfall
Sierra Vista, AZ

Average rainfall - Sierra Vista, AZ

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (0.12").

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Average rainfall days
Sierra Vista, AZ

Average rainfall days - Sierra Vista, AZ

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is May (2.3 days).

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Average snowfall
Sierra Vista, AZ

Average snowfall - Sierra Vista, AZ

The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days
Sierra Vista, AZ

Average snowfall days - Sierra Vista, AZ

The month with the highest number of snowfall days is December (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Sierra Vista, AZ

Average daylight / Average sunshine - Sierra Vista, AZ

The month with the longest days is June (Average daylight: 14h and 10min).
The month with the shortest days is December (Average daylight: 10h and 8min).

The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

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Average sunshine days
Sierra Vista, AZ

Average sunshine days - Sierra Vista, AZ

The month with the most sunshine days is May (28.1 days).
The month with the least sunshine days is July (6.5 days).

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Average UV index
Sierra Vista, AZ

Average UV index - Sierra Vista, AZ

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
Sierra Vista, AZ

Average visibility - Sierra Vista, 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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