Climate and monthly weather forecast
Saint Johns, AZ

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Weather in January

January, like December, is a frosty winter month in Saint Johns, Arizona, with an average temperature fluctuating between 28.2°F (-2.1°C) and 45.5°F (7.5°C). In Saint Johns, the lowest temperatures are generally noted in January, averaging a high of 45.5°F (7.5°C) and a low of 28.2°F (-2.1°C). Weather in January »

Weather in February

February, the last month of the winter in Saint Johns, is a fresh month, with an average temperature varying between 50.7°F (10.4°C) and 31.5°F (-0.3°C). Shifting into February, Saint Johns records an average high-temperature of a fresh 50.7°F (10.4°C), presenting minor fluctuations compared to the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a refreshing month in Saint Johns, Arizona, with an average temperature fluctuating between 38.1°F (3.4°C) and 59.5°F (15.3°C). The commencement of March sees a minor shift in the average high-temperature, moving from a cool 50.7°F (10.4°C) in February to a moderate 59.5°F (15.3°C). Weather in March »

Weather in April

April in Saint Johns, Arizona, is a comfortable spring month, with an average temperature varying between 43°F (6.1°C) and 66.2°F (19°C). Observing a slight rise in April, the average high-temperature shifts from March's refreshing 59.5°F (15.3°C) to a comfortable 66.2°F (19°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Saint Johns, Arizona, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 74.1°F (23.4°C). With the onset of May, Saint Johns's weather sees a minor temperature rise, transitioning from a comfortable 66.2°F (19°C) in April to a moderately hot 74.1°F (23.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Saint Johns, Arizona, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 86.5°F (30.3°C). In Saint Johns, Arizona, the months of June and July register the highest average temperatures, peaking at 86.5°F (30.3°C). Weather in June »

Weather in July

July, like June, is another hot summer month in Saint Johns, Arizona, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 66.6°F (19.2°C). Saint Johns experiences the peak of its temperatures in June and July, when the average high-temperatures rise to 86.5°F (30.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Saint Johns, Arizona, with an average temperature ranging between min 65.1°F (18.4°C) and max 84.7°F (29.3°C). The arrival of August coincides with an average high-temperature of a warm 84.7°F (29.3°C), indicating a minimal shift from July's 86.5°F (30.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Saint Johns, is also a moderately hot month, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 59.2°F (15.1°C). September's presence records an average high-temperature of a still warm 79.5°F (26.4°C), closely mirroring August's climate. Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Saint Johns, Arizona, with an average temperature varying between 68.2°F (20.1°C) and 46.9°F (8.3°C). The onset of October is marked by a decrease in temperature, transitioning from a moderately hot 79.5°F (26.4°C) in September to an agreeable 68.2°F (20.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Saint Johns, is another mild month, with an average temperature fluctuating between 36.3°F (2.4°C) and 57.4°F (14.1°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from an agreeable 68.2°F (20.1°C) to a mild 57.4°F (14.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Saint Johns, Arizona, with an average temperature fluctuating between 29.1°F (-1.6°C) and 46.6°F (8.1°C). Stepping into December, Saint Johns observes a temperature decline, with the average high falling from November's mild 57.4°F (14.1°C) to a chilly 46.6°F (8.1°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Saint Johns?

January is the coldest month in Saint Johns, with an average high-temperature of 45.5°F (7.5°C) and an average low-temperature of 28.2°F (-2.1°C).

What is the most humid month in Saint Johns?

The most humid month is January, with an average relative humidity of 61%.

How many days does it rain in Saint Johns?

In Saint Johns, Arizona, during the entire year, the rain falls for 67.8 days and collects up to 6.34" (161mm) of precipitation.

When does it snow in Saint Johns?

January through April, November and December are months with snowfall in Saint Johns.

How many days does it snow in Saint Johns?

In Saint Johns, during the entire year, snow falls for 14.9 days and aggregates up to 7.87" (200mm) of snow.

When is the lowest UV index in Saint Johns?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 2.

What is the snowiest month in Saint Johns?

February is the month with the most snowfall. Snow falls for 3.1 days and accumulates 2.44" (62mm) of snow.

What is the driest month in Saint Johns?

The months with the least rainfall are May and June Rain falls for 4.3 days and accumulates 0.28" (7mm) of rain.

When it does not snow in Saint Johns?

In Saint Johns, Arizona, snow does not fall in May through October.

What are the warmest months in Saint Johns?

Saint Johns's peak temperatures tend to occur in June and July, with an average high-temperature of 86.5°F (30.3°C).

What is the least humid month in Saint Johns?

With an average relative humidity of 21%, June is the least humid month in Saint Johns, Arizona.

When are the longest days in Saint Johns?

June has the longest days of the year, with an average of 14h and 24min of daylight.

What is the month with the highest UV index in Saint Johns?

With an average maximum UV index of 7, June is the month with the highest UV index in Saint Johns, Arizona.

What is the wettest month in Saint Johns?

July is the month with the most rainfall in Saint Johns. Rain falls for 10.2 days and accumulates 0.83" (21mm) of precipitation.

What month has the most sunshine in Saint Johns?

August has the most sunshine of the year, with an average of 12.2h of sunshine.

What is the month with the shortest days in Saint Johns?

With an average of 9h and 54min of daylight, December has the shortest days of the year.

Is there Daylight Saving Time (DST) in Saint Johns?

Saint Johns, Arizona, does not utilize Daylight Saving Time (DST). MST timezone is used over the entire year.

What is the month with the least sunshine in Saint Johns?

December has the least sunshine of the year in Saint Johns, Arizona, with an average of 7h of sunshine.

Average temperature
Saint Johns, AZ

Average temperature - Saint Johns, AZ

The warmest months (with the highest average high temperature) are June and July (86.5°F).
The month with the lowest average high temperature is January (45.5°F).

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

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Average pressure
Saint Johns, AZ

Average pressure - Saint Johns, AZ

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed
Saint Johns, AZ

Average wind speed - Saint Johns, AZ

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).

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Average rainfall
Saint Johns, AZ

Average rainfall - Saint Johns, AZ

The wettest month (with the highest rainfall) is July (0.83").
The driest months (with the least rainfall) are May and June (0.28").

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Average rainfall days
Saint Johns, AZ

Average rainfall days - Saint Johns, AZ

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is November (2.9 days).

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Average snowfall
Saint Johns, AZ

Average snowfall - Saint Johns, AZ

The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Saint Johns, AZ

Average snowfall days - Saint Johns, AZ

The month with the highest number of snowfall days is December (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Saint Johns, AZ

Average daylight / Average sunshine - Saint Johns, AZ

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days
Saint Johns, AZ

Average sunshine days - Saint Johns, AZ

The month with the most sunshine days is June (25.8 days).
The month with the least sunshine days is July (17.4 days).

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Average visibility
Saint Johns, AZ

Average visibility - Saint Johns, 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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Saint Johns, Arizona, USA

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