Monthly weather forecast and climate
Saint Mary's, AK

Weather in January

January, like December, in Saint Mary's, Alaska, is another frigid cold winter month, with temperature in the range of an average low of 2.3°F (-16.5°C) and an average high of 11.3°F (-11.5°C). With an average high-temperature of 11.3°F (-11.5°C) and an average low-temperature of 2.3°F (-16.5°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a freezing cold month in Saint Mary's, Alaska, with average temperature varying between 5.4°F (-14.8°C) and 15.8°F (-9°C). In Saint Mary's, the average high-temperature is almost the same as in January - a freezing cold 15.8°F (-9°C). Weather in February »

Weather in March

The first month of the spring, March, is still a freezing cold month in Saint Mary's, Alaska, with average temperature fluctuating between 5.7°F (-14.6°C) and 18°F (-7.8°C). In Saint Mary's, the average high-temperature is essentially the same as in February - a still freezing cold 18°F (-7.8°C). Weather in March »

Weather in April

April, the same as March, in Saint Mary's, Alaska, is another subzero cold spring month, with average temperature varying between 31.6°F (-0.2°C) and 20.5°F (-6.4°C). In April, the average high-temperature increases, from a freezing cold 18°F (-7.8°C) in March, to a still subzero cold 31.6°F (-0.2°C). Weather in April »

Weather in May

May, the last month of the spring, in Saint Mary's, is a frosty month, with temperature in the range of an average high of 48.9°F (9.4°C) and an average low of 35.2°F (1.8°C). In Saint Mary's, the average high-temperature increases considerably, from a freezing cold 31.6°F (-0.2°C) in April, to a chilly 48.9°F (9.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a comfortable month in Saint Mary's, Alaska, with average temperature fluctuating between 45.1°F (7.3°C) and 61.2°F (16.2°C). In Saint Mary's, Alaska, the average high-temperature in June rises, from a chilly 48.9°F (9.4°C) in May, to a comfortable 61.2°F (16.2°C). Weather in June »

Weather in July

July, the same as June, is another comfortable summer month in Saint Mary's, Alaska, with average temperature varying between 61.5°F (16.4°C) and 47.5°F (8.6°C). The warmest month is July, with an average high-temperature of 61.5°F (16.4°C) and an average low-temperature of 47.5°F (8.6°C). Weather in July »

Weather in August

August, the last month of the summer, in Saint Mary's, is another mild month, with average temperature varying between 59°F (15°C) and 46.4°F (8°C). In August, the average high-temperature is practically the same as in July - a mild 59°F (15°C). Weather in August »

Weather in September

September, the first month of the autumn, in Saint Mary's, is also a fresh month, with average temperature varying between 40.1°F (4.5°C) and 51.1°F (10.6°C). In Saint Mary's, the average high-temperature marginally drops, from a mild 59°F (15°C) in August, to a cool 51.1°F (10.6°C). Weather in September »

Weather in October

October, the same as September, is another cold autumn month in Saint Mary's, Alaska, with average temperature varying between 31.1°F (-0.5°C) and 37.9°F (3.3°C). In October, the average high-temperature decreases, from a cool 51.1°F (10.6°C) in September, to a wintry 37.9°F (3.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a subzero cold month in Saint Mary's, Alaska, with average temperature fluctuating between 21.6°F (-5.8°C) and 14.9°F (-9.5°C). In Saint Mary's, the average high-temperature in November declines considerably, from a cold 37.9°F (3.3°C) in October, to a freezing cold 21.6°F (-5.8°C). Weather in November »

Weather in December

December, the first month of the winter, in Saint Mary's, is also a subzero cold month, with average temperature ranging between max 14.7°F (-9.6°C) and min 5.9°F (-14.5°C). In December, the average high-temperature marginally drops, from 21.6°F (-5.8°C) in November, to a still freezing cold 14.7°F (-9.6°C). Weather in December »
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FAQ

What is the coldest month in Saint Mary's?

With an average high-temperature of 11.3°F (-11.5°C) and an average low-temperature of 2.3°F (-16.5°C), January is the coldest month.

What is the most humid month in Saint Mary's?

Months with the highest humidity in Saint Mary's are January through March and December, with an average relative humidity of 91%.

How many days does it rain in Saint Mary's?

In Saint Mary's, during the entire year, the rain falls for 104.5 days and collects up to 15.75" (400mm) of precipitation.

What is the driest month in Saint Mary's?

January and June are months with the least rain in Saint Mary's when the rain falls for 2.4 days and typically aggregates up to 0.87" (22mm) of rain.

When does it snow in Saint Mary's?

Months with snowfall in Saint Mary's are January through May, September through December.

How many days does it snow in Saint Mary's?

Throughout the year, in Saint Mary's, there are 71.4 snowfall days, and 22.72" (577mm) of snow is accumulated.

When does it snow the most in Saint Mary's?

The month with the most snowfall is February when snow falls for 11.4 days and typically aggregates up to 5.28" (134mm) of snow.

What is the month with the lowest UV index in Saint Mary's?

Months with the lowest UV index in Saint Mary's, Alaska, are March, November and December, with an average maximum UV index of 1.

What month has the most sunshine in Saint Mary's?

With an average of 7.9h of sunshine, May has the most sunshine of the year in Saint Mary's, Alaska.

When is the highest UV index in Saint Mary's?

Months with the highest UV index are May through August, with an average maximum UV index of 3.

What is the least humid month in Saint Mary's?

June is the least humid month, with an average relative humidity of 66%.

When it does not snow in Saint Mary's?

June through August are months without snowfall in Saint Mary's, Alaska.

When are the longest days in Saint Mary's?

With an average of 19.6h of daylight, June has the longest days of the year in Saint Mary's, Alaska.

What is the warmest month in Saint Mary's?

July is the warmest month in Saint Mary's, with an average high-temperature of 61.5°F (16.4°C) and an average low-temperature of 47.5°F (8.6°C).

What is the wettest month in Saint Mary's?

August is the month with the most rainfall. Rain falls for 17.8 days and accumulates 2.13" (54mm) of precipitation.

What is the month with the shortest days in Saint Mary's?

December has the shortest days of the year in Saint Mary's, with an average of 5.3h of daylight.

What is the month with the least sunshine in Saint Mary's?

The month with the least sunshine in Saint Mary's, Alaska, is December, with an average of 2.6h of sunshine.

Average temperature
Saint Mary's, AK

Average temperature - Saint Mary

The warmest month (with the highest average high temperature) is July (61.5°F).
The month with the lowest average high temperature is January (11.3°F).

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (2.3°F).

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Average pressure
Saint Mary's, AK

Average pressure - Saint Mary

The month with the highest atmospheric pressure is July (29.91").
Months with the lowest atmospheric pressure are October and December (29.67").

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Average wind speed
Saint Mary's, AK

Average wind speed - Saint Mary

The windiest month (with the highest average wind speed) is February (11.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

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Average humidity
Saint Mary's, AK

Average humidity - Saint Mary

Months with the highest relative humidity are January, February, March and December (91%).
The month with the lowest relative humidity is June (66%).

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Average rainfall
Saint Mary's, AK

Average rainfall - Saint Mary

The wettest month (with the highest rainfall) is August (2.13").
The driest months (with the least rainfall) are January and June (0.87").

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Average rainfall days
Saint Mary's, AK

Average rainfall days - Saint Mary

The month with the highest number of rainy days is August (17.8 days).
Months with the least rainy days are January and February (2.4 days).

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Average snowfall
Saint Mary's, AK

Average snowfall - Saint Mary

The month with the highest snowfall is February (5.28").
Months with the least snowfall are June, July and August (0").

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Average snowfall days
Saint Mary's, AK

Average snowfall days - Saint Mary

The month with the highest number of snowfall days is February (11.4 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight / Average sunshine
Saint Mary's, AK

Average daylight / Average sunshine - Saint Mary

The month with the longest days is June (Average daylight: 19.6h).
The month with the shortest days is December (Average daylight: 5.3h).

The month with the most sunshine is May (Average sunshine: 7.9h).
The month with the least sunshine is December (Average sunshine: 2.6h).

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Average sunshine days
Saint Mary's, AK

Average sunshine days - Saint Mary

The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (10.9 days).

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Average UV index
Saint Mary's, AK

Average UV index - Saint Mary

Months with the highest UV index are May, June, July and August (UV index 3).
Months with the lowest UV index are March, November and December (UV index 1).

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Average visibility
Saint Mary's, AK

Average visibility - Saint Mary

Months with the highest visibility are May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March, April, November and December (5mi).

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