Climate and monthly weather forecast
Santa Rosa, AZ

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Weather in January

January, the same as December, is another refreshing winter month in Santa Rosa, Arizona, with an average temperature varying between 63.9°F (17.7°C) and 45.7°F (7.6°C). Upon the beginning of January, Santa Rosa's high-temperatures register at a still refreshing 63.9°F (17.7°C), closely mirroring the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Santa Rosa, is also an enjoyable month, with an average temperature varying between 47.8°F (8.8°C) and 65.8°F (18.8°C). An average high-temperature of a still refreshing 65.8°F (18.8°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »

Weather in March

The first month of the spring, March, is an agreeable month in Santa Rosa, Arizona, with an average temperature ranging between max 73°F (22.8°C) and min 52.9°F (11.6°C). The commencement of March sees a minor shift in the average high-temperature, moving from an enjoyable 65.8°F (18.8°C) in February to an agreeable 73°F (22.8°C). Weather in March »

Weather in April

April is a moderately hot spring month in Santa Rosa, Arizona, with an average temperature fluctuating between 79.5°F (26.4°C) and 56.5°F (13.6°C). In Santa Rosa, stepping into April brings a gentle temperature nudge, moving slightly up from March's agreeable 73°F (22.8°C) to a moderately hot 79.5°F (26.4°C). Weather in April »

Weather in May

May, the last month of the spring in Santa Rosa, is a tropical month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 61.9°F (16.6°C). The arrival of May witnesses a small shift in the average high-temperature, moving from a moderately hot 79.5°F (26.4°C) in April to a tropical 86.5°F (30.3°C). Weather in May »

Weather in June

June, the first month of the summer in Santa Rosa, is a torrid month, with temperature in the range of an average high of 97.3°F (36.3°C) and an average low of 71.2°F (21.8°C). With average temperatures fluctuating between a high of 97.3°F (36.3°C) and a low of 71.2°F (21.8°C), June stands out as the warmest month. Weather in June »

Weather in July

July, the same as June, is another fiery hot summer month in Santa Rosa, Arizona, with an average temperature fluctuating between 78.6°F (25.9°C) and 95.9°F (35.5°C). Santa Rosa's July reports an average high-temperature of a still sweltering 95.9°F (35.5°C), exhibiting a minor difference from June. Weather in July »

Weather in August

August, the last month of the summer in Santa Rosa, is also a sweltering month, with an average temperature ranging between max 95.5°F (35.3°C) and min 78.4°F (25.8°C). The initiation of August sees an average high-temperature of a still sweltering 95.5°F (35.3°C), showing minor variations from the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Santa Rosa, is still a tropical month, with temperature in the range of an average low of 73.6°F (23.1°C) and an average high of 91.2°F (32.9°C). September's advent presents an average high-temperature of a tropical 91.2°F (32.9°C), indicating a slight variation from the conditions of the previous month. Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Santa Rosa, Arizona, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 82.8°F (28.2°C). The average high-temperature slightly decreases in October, shifting from a hot 91.2°F (32.9°C) in September to a warm 82.8°F (28.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Santa Rosa, Arizona, with an average temperature ranging between min 52.7°F (11.5°C) and max 72.7°F (22.6°C). Santa Rosa observes a minor decrease in the average high-temperature with the arrival of November, falling from October's moderately hot 82.8°F (28.2°C) to a pleasant 72.7°F (22.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also an enjoyable month in Santa Rosa, Arizona, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 62.4°F (16.9°C). December, having an average high-temperature of 62.4°F (16.9°C) and an average low-temperature of 45.5°F (7.5°C), is the coldest month. Weather in December »
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

In Santa Rosa, during the entire year, the rain falls for 52.9 days and collects up to 6.46" (164mm) of precipitation.

What is the driest month?

The month with the least rainfall is May, when the rain falls for 1 days and typically collects 0.04" (1mm) of precipitation.

What are the warmest months?

June temperatures tend to peak at an average high of 97.3°F (36.3°C) and dip to a low of 71.2°F (21.8°C).

What is the least humid month?

The least humid month is June, with an average relative humidity of 20%.

When are the longest days?

June has the longest days of the year, with an average of 14h and 12min of daylight.

What month has the most sunshine in Santa Rosa?

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

When is the highest UV index?

The months with the highest UV index are July and August, with an average maximum UV index of 8.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 11 days and typically aggregates up to 1.38" (35mm) of precipitation.

What month is the coldest?

December, having an average high-temperature of 62.4°F (16.9°C) and an average low-temperature of 45.5°F (7.5°C), is the coldest month in Santa Rosa.

What is the most humid month?

The most humid month is December, with an average relative humidity of 44%.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

Is there Daylight Saving Time (DST)?

Santa Rosa does not utilize Daylight Saving Time (DST). MST timezone is used throughout the entire year.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 6.9h of sunshine.

What is the month with the lowest UV index?

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

Average temperature
Santa Rosa, AZ

Average temperature - Santa Rosa, AZ

The warmest month (with the highest average high temperature) is June (97.3°F).
The month with the lowest average high temperature is December (62.4°F).

The month with the highest average low temperature is July (78.6°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).

Average pressure
Santa Rosa, AZ

Average pressure - Santa Rosa, AZ

The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).

Average wind speed
Santa Rosa, AZ

Average wind speed - Santa Rosa, AZ

The windiest month (with the highest average wind speed) is May (9.3mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).

Average humidity
Santa Rosa, AZ

Average humidity - Santa Rosa, AZ

The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (20%).

Average rainfall
Santa Rosa, AZ

Average rainfall - Santa Rosa, AZ

The wettest month (with the highest rainfall) is August (1.38").
The driest month (with the least rainfall) is May (0.04").

Average rainfall days
Santa Rosa, AZ

Average rainfall days - Santa Rosa, AZ

The month with the highest number of rainy days is July (11.5 days).
The month with the least rainy days is May (1 days).

Average daylight / Average sunshine
Santa Rosa, AZ

Average daylight / Average sunshine - Santa Rosa, AZ

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

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 54min).

Average sunshine days
Santa Rosa, AZ

Average sunshine days - Santa Rosa, AZ

The month with the most sunshine days is May (29.8 days).
The month with the least sunshine days is August (17.2 days).

Average visibility
Santa Rosa, AZ

Average visibility - Santa Rosa, 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).

Santa Rosa, Arizona, USA

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