Climate and monthly weather forecast
Summit, UT

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Weather in January

January, the same as December, is an icy winter month in Summit, Utah, with an average temperature varying between 35.4°F (1.9°C) and 19°F (-7.2°C). In Summit, January and December are characterised by the lowest temperatures, recording an average high of 35.4°F (1.9°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Summit, Utah, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 21.6°F (-5.8°C). At the start of February, Summit's average high-temperature reaches a still cold 37.6°F (3.1°C), subtly different from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Summit, Utah, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 28.6°F (-1.9°C). The arrival of March brings a soft temperature shift, with the average high-temperature nudging from an icy 37.6°F (3.1°C) in February to a frosty 46°F (7.8°C). Weather in March »

Weather in April

April is a cool spring month in Summit, Utah, with an average temperature varying between 53.2°F (11.8°C) and 34.3°F (1.3°C). April's arrival signals a subtle increase in average high-temperatures, moving from March's frosty 46°F (7.8°C) to a cool 53.2°F (11.8°C). Weather in April »

Weather in May

May, the last month of the spring in Summit, is a refreshing month, with temperature in the range of an average high of 62.6°F (17°C) and an average low of 41.5°F (5.3°C). As Summit, Utah, transitions into May, a rise in the average high-temperature is observed, moving from a cool 53.2°F (11.8°C) in April to an enjoyable 62.6°F (17°C). Weather in May »

Weather in June

June, the first month of the summer in Summit, is a warm month, with an average temperature fluctuating between 76.3°F (24.6°C) and 51.8°F (11°C). With the onset of June, Summit's weather sees a temperature rise, transitioning from a comfortable 62.6°F (17°C) in May to a warm 76.3°F (24.6°C). Weather in June »

Weather in July

July, like June, in Summit, Utah, is another warm summer month, with an average temperature fluctuating between 80.8°F (27.1°C) and 59°F (15°C). July stands out as Summit's warmest month, with an average high-temperature of 80.8°F (27.1°C) and a low-temperature of 59°F (15°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Summit, Utah, with an average temperature fluctuating between 79.2°F (26.2°C) and 57.4°F (14.1°C). The shift into August records an average high-temperature of a still moderately hot 79.2°F (26.2°C), subtly varied from July's 80.8°F (27.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Summit, Utah, with an average temperature ranging between min 50.4°F (10.2°C) and max 72.3°F (22.4°C). Summit's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 79.2°F (26.2°C) to a pleasant 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, in Summit, Utah, is another refreshing autumn month, with an average temperature varying between 58.5°F (14.7°C) and 38.3°F (3.5°C). Summit's October weather shows a moderate shift in high-temperatures, falling from September's pleasant 72.3°F (22.4°C) to a refreshing 58.5°F (14.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Summit, Utah, with an average temperature fluctuating between 28.6°F (-1.9°C) and 47.1°F (8.4°C). In the transition to November, Summit observes a drop in the average high-temperature, moving from a mild 58.5°F (14.7°C) in October to a frosty 47.1°F (8.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Summit, Utah, with an average temperature ranging between min 18.9°F (-7.3°C) and max 35.4°F (1.9°C). Summit witnesses its lowest temperatures in January and December, reaching an average of 35.4°F (1.9°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Summit?

Summit sees its lowest temperatures during January and December, with an average high-temperature of 35.4°F (1.9°C).

What is the most humid month in Summit?

January is the most humid month in Summit, with an average relative humidity of 76%.

How much does it rain in Summit?

In Summit, Utah, during the entire year, the rain falls for 78.4 days and collects up to 11.61" (295mm) of precipitation.

When does it snow in Summit?

Months with snowfall in Summit, Utah, are January through May, October through December.

How many days does it snow in Summit?

In Summit, Utah, during the entire year, snow falls for 42.2 days and aggregates up to 38.31" (973mm) of snow.

When is the lowest UV index in Summit?

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

When is Daylight Saving Time (DST) in Summit?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Summit, 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 least humid month in Summit?

With an average relative humidity of 27%, June is the least humid month.

What is the driest month in Summit?

The month with the least rainfall is June, when the rain falls for 2.7 days and typically collects 0.2" (5mm) of precipitation.

When it does not snow in Summit?

June through September are months without snowfall in Summit, Utah.

When are the longest days in Summit?

June has the longest days of the year in Summit, with an average of 14h and 42min of daylight.

What are the months with the most sunshine in Summit?

June and August, with an average of 11.8h of sunshine, are months with the most sunshine.

What are the months with the highest UV index in Summit?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What time of the year is the hottest in Summit?

Summit, Utah, notes the warmest temperatures in July, with a average high of 80.8°F (27.1°C) and a low of 59°F (15°C).

What is the rainiest month in Summit?

July is the month with the most rainfall. Rain falls for 11.9 days and accumulates 1.34" (34mm) of precipitation.

What is the snowiest month in Summit?

December is the month with the most snowfall in Summit, Utah. Snow falls for 9.8 days and accumulates 8.19" (208mm) of snow.

What is the month with the shortest days in Summit?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Summit.

What is the month with the least sunshine in Summit?

The month with the least sunshine in Summit is December, with an average of 6.4h of sunshine.

Average temperature
Summit, UT

Average temperature - Summit, UT

The warmest month (with the highest average high temperature) is July (80.8°F).
The months with the lowest average high temperature are January and December (35.4°F).

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is December (18.9°F).

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Average pressure
Summit, UT

Average pressure - Summit, UT

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed
Summit, UT

Average wind speed - Summit, UT

The windiest month (with the highest average wind speed) is June (8.1mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).

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Average rainfall
Summit, UT

Average rainfall - Summit, UT

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days
Summit, UT

Average rainfall days - Summit, UT

The month with the highest number of rainy days is July (11.9 days).
The month with the least rainy days is June (2.7 days).

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Average snowfall
Summit, UT

Average snowfall - Summit, UT

The month with the highest snowfall is December (8.19").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Summit, UT

Average snowfall days - Summit, UT

The month with the highest number of snowfall days is December (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Summit, UT

Average daylight / Average sunshine - Summit, UT

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The months with the most sunshine are June and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days
Summit, UT

Average sunshine days - Summit, UT

The month with the most sunshine days is June (25.8 days).
The month with the least sunshine days is July (16 days).

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Average UV index
Summit, UT

Average UV index - Summit, UT

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Summit, UT

Average visibility - Summit, UT

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

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Summit, Utah, USA

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