Climate and monthly weather forecast
Kelly, WY

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Weather in January

January, like December, is another subzero cold winter month in Kelly, Wyoming, with an average temperature ranging between max 23.4°F (-4.8°C) and min 4.3°F (-15.4°C). The arrival of January sees a recorded average high-temperature of a still subzero cold 23.4°F (-4.8°C), showing little divergence from the previous month's conditions. Weather in January »

Weather in February

February, the last month of the winter in Kelly, is also a subzero cold month, with an average temperature ranging between min 6.6°F (-14.1°C) and max 23.9°F (-4.5°C). With the onset of February, the average high-temperature stands at a still subzero cold 23.9°F (-4.5°C), closely aligned with January's 23.4°F (-4.8°C). Weather in February »

Weather in March

The first month of the spring, March, is still a freezing cold month in Kelly, Wyoming, with an average temperature ranging between max 30°F (-1.1°C) and min 13.6°F (-10.2°C). As March arrives, Kelly's weather shows a minor increase in high-temperatures, edging from February's subzero cold 23.9°F (-4.5°C) to a still freezing cold 30°F (-1.1°C). Weather in March »

Weather in April

April in Kelly, Wyoming, is a cold spring month, with temperature in the range of an average high of 37°F (2.8°C) and an average low of 19.8°F (-6.8°C). Observing a minor shift, the average high-temperature during April adjusts from March's subzero cold 30°F (-1.1°C) to a cold 37°F (2.8°C). Weather in April »

Weather in May

May, the last month of the spring in Kelly, is a chilly month, with temperature in the range of an average high of 49.3°F (9.6°C) and an average low of 28.8°F (-1.8°C). With the onset of May, Kelly's average high-temperature experiences a rise, moving from April's wintry 37°F (2.8°C) to a chilly 49.3°F (9.6°C). Weather in May »

Weather in June

June, the first month of the summer in Kelly, is a comfortable month, with an average temperature varying between 61.3°F (16.3°C) and 36.9°F (2.7°C). With the onset of June, Kelly's average high-temperature sees a rise, moving from May's frosty 49.3°F (9.6°C) to a refreshing 61.3°F (16.3°C). Weather in June »

Weather in July

July is a pleasant summer month in Kelly, Wyoming, with an average temperature ranging between max 72°F (22.2°C) and min 43.9°F (6.6°C). In Kelly, the peak temperatures are generally noted in July, averaging a high of 72°F (22.2°C) and a low of 43.9°F (6.6°C). Weather in July »

Weather in August

August, the last month of the summer in Kelly, is another pleasant month, with an average temperature ranging between min 43.5°F (6.4°C) and max 70.3°F (21.3°C). Kelly experiences a transition to a still agreeable 70.3°F (21.3°C) in average high-temperatures with the arrival of August, not greatly differing from July's 72°F (22.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Kelly, is also an enjoyable month, with an average temperature fluctuating between 62.1°F (16.7°C) and 37°F (2.8°C). The shift from August to September coincides with a small decrease in the average high-temperature, down to an enjoyable 62.1°F (16.7°C) from a pleasant 70.3°F (21.3°C). Weather in September »

Weather in October

October, like September, is a frosty autumn month in Kelly, Wyoming, with an average temperature varying between 45°F (7.2°C) and 25.9°F (-3.4°C). The shift into October brings a noticeable decrease in the average high-temperature, falling from a comfortable 62.1°F (16.7°C) in September to a chilly 45°F (7.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Kelly, is another freezing cold month, with an average temperature fluctuating between 14.7°F (-9.6°C) and 30.9°F (-0.6°C). The onset of November brings a small change in high-temperatures, falling from a chilly 45°F (7.2°C) in October to a freezing cold 30.9°F (-0.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Kelly, Wyoming, with an average temperature ranging between min 4.1°F (-15.5°C) and max 21°F (-6.1°C). Kelly's temperature records reveal December as the coldest month, marked by average highs of 21°F (-6.1°C) and lows of 4.1°F (-15.5°C). Weather in December »

Frequently asked questions

How much does it rain?

Throughout the year, there are 116.8 rainfall days, and 27.95" (710mm) of precipitation is accumulated.

When does it snow in Kelly?

Months with snowfall are January through June, September through December.

How much does it snow?

In Kelly, during the entire year, snow falls for 130.7 days and aggregates up to 137.48" (3492mm) of snow.

When is the lowest UV index?

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the most humid month?

February is the most humid month, with an average relative humidity of 94%.

What is the wettest month?

February is the month with the most rainfall. Rain falls for 3.9 days and accumulates 3.23" (82mm) of precipitation.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 19.9 days and typically aggregates up to 25.94" (659mm) of snow.

What is the month with the least sunshine?

With an average of 3.6h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST) in Kelly?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

When are the longest days in Kelly?

June has the longest days of the year, with an average of 15h and 24min of daylight.

What time of the year is the hottest?

In Kelly, July is the month with the highest recorded average temperatures, measuring a high of 72°F (22.2°C) and a low of 43.9°F (6.6°C).

When it does not snow?

July and August are months without snowfall.

What month has the most sunshine?

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?

July is the month with the highest UV index, with an average maximum UV index of 5.

What is the least humid month?

August is the least humid month, with an average relative humidity of 50%.

What is the driest month in Kelly?

The month with the least rainfall in Kelly is August, when the rain falls for 12.8 days and typically collects 1.42" (36mm) of precipitation.

What month is the coldest?

During the coldest month in Kelly, December, temperatures average a high of 21°F (-6.1°C) and a low of 4.1°F (-15.5°C).

What is the month with the shortest days?

With an average of 9h and 0min of daylight, December has the shortest days of the year.

Average pressure
Kelly, WY

Average pressure - Kelly, WY

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Kelly, WY

Average wind speed - Kelly, WY

The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.5mph).

Average humidity
Kelly, WY

Average humidity - Kelly, WY

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (50%).

Average rainfall
Kelly, WY

Average rainfall - Kelly, WY

The wettest month (with the highest rainfall) is February (3.23").
The driest month (with the least rainfall) is August (1.42").

Average rainfall days
Kelly, WY

Average rainfall days - Kelly, WY

The month with the highest number of rainy days is May (16.2 days).
The months with the least rainy days are January and February (3.9 days).

Average snowfall
Kelly, WY

Average snowfall - Kelly, WY

The month with the highest snowfall is February (25.94").
The months with the least snowfall are July and August (0").

Average snowfall days
Kelly, WY

Average snowfall days - Kelly, WY

The month with the highest number of snowfall days is December (21.7 days).
The month with the least snowfall days is July (0 days).

Average daylight / Average sunshine
Kelly, WY

Average daylight / Average sunshine - Kelly, WY

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days
Kelly, WY

Average sunshine days - Kelly, WY

The month with the most sunshine days is July (15.6 days).
The month with the least sunshine days is April (7 days).

Average UV index
Kelly, WY

Average UV index - Kelly, WY

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

Average visibility
Kelly, WY

Average visibility - Kelly, WY

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January and February (2mi).

Kelly, Wyoming, USA

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