Climate and monthly weather forecast
Sphinx, MT

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Weather in January

January, the same as December, in Sphinx, Montana, is another subzero cold winter month, with an average temperature varying between 9.9°F (-12.3°C) and 25°F (-3.9°C). January commences with an average high-temperature of a still subzero cold 25°F (-3.9°C), showing little deviation from December's 22.5°F (-5.3°C). Weather in January »

Weather in February

February, the last month of the winter in Sphinx, is another freezing cold month, with an average temperature varying between 25.2°F (-3.8°C) and 9.5°F (-12.5°C). During February, Sphinx records an average high-temperature of a still freezing cold 25.2°F (-3.8°C), marking a slight divergence from January's 25°F (-3.9°C). Weather in February »

Weather in March

March, the first month of the spring in Sphinx, is an icy month, with an average temperature ranging between min 17.6°F (-8°C) and max 32.9°F (0.5°C). March introduces a minor temperature shift, with average high-temperatures adjusting from February's subzero cold 25.2°F (-3.8°C) to an icy 32.9°F (0.5°C). Weather in March »

Weather in April

April, like March, in Sphinx, Montana, is a wintry spring month, with an average temperature ranging between min 22.1°F (-5.5°C) and max 40.1°F (4.5°C). April's onset is marked by a subtle temperature increase, moving from a cold 32.9°F (0.5°C) in March to a still icy 40.1°F (4.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a cool month in Sphinx, Montana, with an average temperature fluctuating between 30.6°F (-0.8°C) and 52°F (11.1°C). The commencement of May sees a shift in the average high-temperature, moving from a wintry 40.1°F (4.5°C) in April to a fresh 52°F (11.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a comfortable month in Sphinx, Montana, with an average temperature ranging between max 64°F (17.8°C) and min 38.5°F (3.6°C). June marks a rise in the average high-temperature, moving from May's cool 52°F (11.1°C) to an enjoyable 64°F (17.8°C). Weather in June »

Weather in July

July is a warm summer month in Sphinx, Montana, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 44.6°F (7°C). In Sphinx, Montana, the month of July registers the highest temperatures, averaging 74.8°F (23.8°C) at the peak and 44.6°F (7°C) at the lowest. Weather in July »

Weather in August

The last month of the summer, August, is another pleasant month in Sphinx, Montana, with an average temperature fluctuating between 45.1°F (7.3°C) and 72.7°F (22.6°C). The average high-temperature for August is an agreeable 72.7°F (22.6°C), closely aligning with the temperature of the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Sphinx, is still a comfortable month, with an average temperature ranging between max 63.5°F (17.5°C) and min 39.6°F (4.2°C). September's arrival comes with a decrease in the average high-temperature, moving from a pleasant 72.7°F (22.6°C) in August to a refreshing 63.5°F (17.5°C). Weather in September »

Weather in October

October, the same as September, in Sphinx, Montana, is another chilly autumn month, with an average temperature fluctuating between 27.5°F (-2.5°C) and 45.5°F (7.5°C). Sphinx's weather experiences a significant temperature drop with the arrival of October, falling from a refreshing 63.5°F (17.5°C) in September to a chilly 45.5°F (7.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an icy month in Sphinx, Montana, with an average temperature varying between 32.2°F (0.1°C) and 16.9°F (-8.4°C). With the onset of November, Sphinx's average high-temperature adjusts, receding from October's frosty 45.5°F (7.5°C) to a cold 32.2°F (0.1°C). Weather in November »

Weather in December

December, the first month of the winter in Sphinx, is still a freezing cold month, with temperature in the range of an average high of 22.5°F (-5.3°C) and an average low of 7.9°F (-13.4°C). Sphinx's coldest weather arrives in December, when temperatures average a high of 22.5°F (-5.3°C) and a low of 7.9°F (-13.4°C). Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the most humid months in Sphinx?

The months with the highest humidity are January and February, with an average relative humidity of 90%.

How much does it rain in Sphinx?

Throughout the year, in Sphinx, there are 116.1 rainfall days, and 23.5" (597mm) of precipitation is accumulated.

When does it snow in Sphinx?

Months with snowfall in Sphinx are January through December.

How many days does it snow in Sphinx?

In Sphinx, Montana, during the entire year, snow falls for 151.6 days and aggregates up to 124.06" (3151mm) of snow.

What is the month with the least sunshine in Sphinx?

The month with the least sunshine is January, with an average of 4.7h of sunshine.

What is the month with the lowest UV index in Sphinx?

The months with the lowest UV index in Sphinx are January and February, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Sphinx?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sphinx, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the rainiest month in Sphinx?

The months with the most rainfall in Sphinx, Montana, are April and May, with an average 2.91" (74mm) of precipitation.

What is the snowiest month in Sphinx?

April is the month with the most snowfall in Sphinx, Montana. Snow falls for 20.5 days and accumulates 19.88" (505mm) of snow.

When are the longest days in Sphinx?

The month with the longest days in Sphinx is June, with an average of 15h and 36min of daylight.

What are the warmest months in Sphinx?

The temperatures reach their highest averages in July, with highs of 74.8°F (23.8°C) and lows of 44.6°F (7°C).

What is the driest month in Sphinx?

The month with the least rainfall is July, when the rain falls for 12.5 days and typically collects 1.18" (30mm) of precipitation.

What month has the most sunshine in Sphinx?

July has the most sunshine of the year, with an average of 11.7h of sunshine.

What is the month with the highest UV index in Sphinx?

With an average maximum UV index of 5, July is the month with the highest UV index in Sphinx, Montana.

What is the least humid month in Sphinx?

The least humid month in Sphinx is August, with an average relative humidity of 51%.

When it does not snow in Sphinx?

The month with the least snowfall in Sphinx, Montana, is August, when snow falls for 0.3 days and typically aggregates up to 0.08" (2mm) of snow.

What month is the coldest in Sphinx?

Sphinx's December weather, with an average high temperature of 22.5°F (-5.3°C) and an average low temperature of 7.9°F (-13.4°C), tends to be the coldest of the year.

What is the month with the shortest days in Sphinx?

December has the shortest days of the year, with an average of 8h and 48min of daylight.

Average temperature
Sphinx, MT

Average temperature - Sphinx, MT

The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is December (22.5°F).

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (7.9°F).

Average pressure
Sphinx, MT

Average pressure - Sphinx, MT

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Sphinx, MT

Average wind speed - Sphinx, MT

The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity
Sphinx, MT

Average humidity - Sphinx, MT

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is August (51%).

Average rainfall
Sphinx, MT

Average rainfall - Sphinx, MT

The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is July (1.18").

Average rainfall days
Sphinx, MT

Average rainfall days - Sphinx, MT

The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (4.3 days).

Average snowfall
Sphinx, MT

Average snowfall - Sphinx, MT

The month with the highest snowfall is April (19.88").
The month with the least snowfall is August (0.08").

Average snowfall days
Sphinx, MT

Average snowfall days - Sphinx, MT

The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is August (0.3 days).

Average daylight / Average sunshine
Sphinx, MT

Average daylight / Average sunshine - Sphinx, MT

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days
Sphinx, MT

Average sunshine days - Sphinx, MT

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is May (5.7 days).

Average visibility
Sphinx, MT

Average visibility - Sphinx, MT

The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

Sphinx, Montana, USA

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