Climate and monthly weather forecast
Saint Maries, ID

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The climate of Saint Maries

Saint Maries, Idaho, prominently showcases a Mediterranean climate with warm summer, defined under the Köppen climate classification as Csb. Located in the northern hemisphere, the town experiences seasonal variations that greatly influence its weather patterns.

Each month brings a unique variation in temperatures, precipitations, and other weather parameters. This local climate is characterized by relatively warm summers and cold winters. The annual high temperature spectrum ranges from a chilly 31.8°F (-0.1°C) in December to a warm 80.2°F (26.8°C) in August. Likewise, a shear can be seen in monthly minimum temperatures, ranging from a frigid 21.2°F (-6°C) in December to a mild 50.2°F (10.1°C) in August.

The average annual relative humidity fluctuates noticeably from a high 92% in January to a low of 50% in August. Rainfall varies throughout the year as well, with the driest month being in July at 0.35" (9mm) and the wettest in January at 3.66" (93mm). Snowfall is also a common feature here, particularly during the colder months. In January, the town witnesses the most snowfall with 16.22" (412mm) compared to insignificant snowfall in May, June, July, and August.

The best time to visit Saint Maries

The best time for tourists to visit Saint Maries is during the peak summer months of June, July, and August. During this period, the town experiences the highest temperatures, with July and August witnessing highs of 79.5°F (26.4°C) and 80.2°F (26.8°C) respectively. Furthermore, these months have the lowest average humidity ranging from 53% to 50% and the least rainfall amounting approximately to 0.35" (9mm) and 0.43" (11mm).

The worst time to visit Saint Maries

The least favorable time to visit Saint Maries is during the cold months of December, January, and February when the town experiences the most severe weather conditions. The temperatures drop to chilling lows from 22.5°F (-5.3°C) in January to 21.2°F (-6°C) in December. The presence of heavy snowfall and high humidity, coupled with low visibility, makes navigating the town quite strenuous.

Spring weather in Saint Maries

Spring weather in Saint Maries, experienced in March, April, and May, brings a mix of warm temperatures and moderate rainfall. An upward trend in temperatures is witnessed from 42.4°F (5.8°C) in March to 62.2°F (16.8°C) in May. Likewise, the frequency of rainfall reduces from 3.11" (79mm) in March to 1.97" (50mm) in May.

Summer weather in Saint Maries

Summer, from June to August, in Saint Maries brings a pleasant contrast compared to the rest of the year. Temperatures hover at comfortable highs between 68°F (20°C) and 80.2°F (26.8°C). This season also marks the driest period, with rainfall reaching its yearly minimum at 0.35" (9mm) in July.

Autumn weather in Saint Maries

During October, November, and December, the autumn season is welcomed in Saint Maries with a noticeable drop in temperatures and a gradual increase in precipitation. Temperatures decrease from a mild 54.5°F (12.5°C) in October to a chilly 31.8°F (-0.1°C) in December. The precipitation mirrors this trend, with rainfall increasing from 2.2" (56mm) in October to 3.27" (83mm) in December.

Winter weather in Saint Maries

Winter in Saint Maries, spreading across January, February, and March, is characterized by cold temperatures and substantial snowfall. The temperature peaks are restricted between 33.4°F (0.8°C) in January and 42.4°F (5.8°C) in March. The town experiences most of its snowfall at this time, accumulating up to 16.22" (412mm) in January.

Weather in January

Saint Maries, Idaho greets the new year with cold and harsh weather conditions. January has the highest snowfall of the year with a substantial 16.22" (412mm) and the city experiences close to half this month enveloped in snowfall. Weather in January »

Weather in February

Although still positioned in the icy grip of winter, February marks the beginning of a slow, gradual transition towards warmer temperatures in Saint Maries, Idaho. Notably, the pressure sees a slight drop to 30.11" (765mm) from January's 30.19" (767mm). Weather in February »

Weather in March

While the days noticeably lengthen as spring approaches, the harsh winter is slow to release its hold over Saint Maries in March. With a significant decrease in snowfall to 7.95" (202mm) from 14.69" (373mm) in February, an end to the frosty season is in sight. Weather in March »

Weather in April

April is a marker of changing seasons in Saint Maries, as it officially bids goodbye to its final bout of snowfall resulting in a much welcome rise in temperatures. From a rainfall perspective, April receives slightly less precipitation than March with a difference of 2.36" (60mm). Weather in April »

Weather in May

May adds a charm to the weather in Saint Maries as the city basks in the fully arrived spring. A sharp increase in average minimum temperatures to 37.8°F (3.2°C) from April’s 31.6°F (-0.2°C) is the most notable change in May. Weather in May »

Weather in June

As June rolls in, there's a stark transformation in the general weather of Saint Maries. With temperatures hopping up to a warm 68°F (20°C) from a mild 62.2°F (16.8°C) in May, the city officially steps into summer. This is the time of the year when daylight hours are longest, offering ample time for outdoor activities. Weather in June »

Weather in July

July proves to be the most comfortable month in Saint Maries, with typically pleasant and predictable weather conditions. The city experiences its peak summer with the mercury soaring to 79.5°F (26.4°C) as the highest temperature. Weather in July »

Weather in August

August in Saint Maries maintains the summer routine with minor fluctuations in the weather. The peak summer temperature witnesses a nominal climb to 80.2°F (26.8°C) in contrast to July’s 79.5°F (26.4°C), marking it the month of the year with the highest temperature. Weather in August »

Weather in September

In line with the season's character, September brings the first signs of the impending fall to Saint Maries. The most distinct fall-like characteristic witnessed is a downshift in temperature, decreasing from 80.2°F (26.8°C) in August to 70.3°F (21.3°C). Weather in September »

Weather in October

October showcases the true essence of autumn, as Saint Maries steps away from the summer warmth and moves toward the cold winter. A more drastic decrease in temperature is evident, with levels dropping to 54.5°F (12.5°C) from 70.3°F (21.3°C) in September. Weather in October »

Weather in November

November, being a transitionary month, witnesses the beginnings of a harsher, colder climate in Saint Maries, Idaho. The most noteworthy shift occurs in the snowfall pattern with a surge to 4.96" (126mm) in contrast to a mere 0.31" (8mm) in October. Weather in November »

Weather in December

December seals the year in Saint Maries with firm footsteps into winter. The temperature continues its journey downward, reaching 31.8°F (-0.1°C), adding further to the seasonal chill. With snowfall spiraling to 13.39" (340mm) from November’s 4.96" (126mm), the city experiences most days of the month under a blanket of snow. Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month in Saint Maries?

With an average relative humidity of 92%, January is the most humid month in Saint Maries.

What is the wettest month in Saint Maries?

The month with the most rainfall is January, when the rain falls for 11.9 days and typically aggregates up to 3.66" (93mm) of precipitation.

How many days does it rain in Saint Maries?

Throughout the year, in Saint Maries, Idaho, there are 145.2 rainfall days, and 25.12" (638mm) of precipitation is accumulated.

When does it snow in Saint Maries?

January through May, September through December are months with snowfall in Saint Maries.

When does it snow the most in Saint Maries?

The month with the most snowfall in Saint Maries, Idaho, is January, when snow falls for 15.4 days and typically aggregates up to 16.22" (412mm) of snow.

How many days does it snow in Saint Maries?

Throughout the year, there are 70.2 snowfall days, and 59.69" (1516mm) of snow is accumulated.

What is the month with the lowest UV index in Saint Maries?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

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

February and December, with an average of 3.5h of sunshine, are months with the least sunshine in Saint Maries, Idaho.

When is Daylight Saving Time (DST) in Saint Maries?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Saint Maries, Idaho, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Saint Maries?

June through August are months without snowfall.

When are the longest days in Saint Maries?

June has the longest days of the year in Saint Maries, Idaho, with an average of 15h and 54min of daylight.

What is the driest month in Saint Maries?

The month with the least rainfall in Saint Maries is July, when the rain falls for 4.9 days and typically collects 0.35" (9mm) of precipitation.

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

The month with the highest UV index in Saint Maries is July, with an average maximum UV index of 6.

What is the hottest time of year in Saint Maries?

In Saint Maries, the peak temperatures are generally noted in August, averaging a high of 80.2°F (26.8°C) and a low of 50.2°F (10.1°C).

What is the least humid month in Saint Maries?

The least humid month in Saint Maries is August, with an average relative humidity of 50%.

What month has the most sunshine in Saint Maries?

With an average of 11.9h of sunshine, August has the most sunshine of the year.

What time of the year is the coldest in Saint Maries?

December stands out as Saint Maries's coldest month, with temperatures ranging between an average high of 31.8°F (-0.1°C) and a low of 21.2°F (-6°C).

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

December has the shortest days of the year in Saint Maries, Idaho, with an average of 8h and 30min of daylight.

Average temperature
Saint Maries, ID

Average temperature - Saint Maries, ID

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (31.8°F).

The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

Average pressure
Saint Maries, ID

Average pressure - Saint Maries, ID

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed
Saint Maries, ID

Average wind speed - Saint Maries, ID

The windiest month (with the highest average wind speed) is April (5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).

Average humidity
Saint Maries, ID

Average humidity - Saint Maries, ID

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (50%).

Average rainfall
Saint Maries, ID

Average rainfall - Saint Maries, ID

The wettest month (with the highest rainfall) is January (3.66").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days
Saint Maries, ID

Average rainfall days - Saint Maries, ID

The month with the highest number of rainy days is April (18.7 days).
The month with the least rainy days is July (4.9 days).

Average snowfall
Saint Maries, ID

Average snowfall - Saint Maries, ID

The month with the highest snowfall is January (16.22").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Saint Maries, ID

Average snowfall days - Saint Maries, ID

The month with the highest number of snowfall days is December (16.3 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Saint Maries, ID

Average daylight / Average sunshine - Saint Maries, ID

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 3h and 30min).

Average sunshine days
Saint Maries, ID

Average sunshine days - Saint Maries, ID

The month with the most sunshine days is July (25.2 days).
The month with the least sunshine days is March (7.5 days).

Average UV index
Saint Maries, ID

Average UV index - Saint Maries, ID

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average visibility
Saint Maries, ID

Average visibility - Saint Maries, ID

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

Saint Maries, Idaho, USA

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