Climate and monthly weather forecast
Grass Creek, WY

Share

Weather in January

January, the same as December, in Grass Creek, Wyoming, is another subzero cold winter month, with an average temperature ranging between max 29.8°F (-1.2°C) and min 14.4°F (-9.8°C). The unfolding of January shows an average high-temperature of a still subzero cold 29.8°F (-1.2°C), indicating a slight variance from December's 27.3°F (-2.6°C). Weather in January »

Weather in February

February, the last month of the winter in Grass Creek, is another freezing cold month, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 28.2°F (-2.1°C). Grass Creek observes an average high-temperature of a still subzero cold 28.2°F (-2.1°C) in February, barely different from 29.8°F (-1.2°C) in January. Weather in February »

Weather in March

March, the first month of the spring in Grass Creek, is an icy month, with temperature in the range of an average low of 22.3°F (-5.4°C) and an average high of 37.6°F (3.1°C). March's onset brings a rise in the average high-temperature, moving from a freezing cold 28.2°F (-2.1°C) in February to a wintry 37.6°F (3.1°C). Weather in March »

Weather in April

April is a chilly spring month in Grass Creek, Wyoming, with an average temperature fluctuating between 44.1°F (6.7°C) and 27°F (-2.8°C). With the transition into April, Grass Creek experiences a subtle uplift in average high-temperatures, adjusting from a cold 37.6°F (3.1°C) in March to a frosty 44.1°F (6.7°C). Weather in April »

Weather in May

May, the last month of the spring in Grass Creek, is a cool month, with an average temperature fluctuating between 36.7°F (2.6°C) and 54.1°F (12.3°C). Grass Creek sees an increase in the average high-temperature with the arrival of May, moving from April's chilly 44.1°F (6.7°C) to a cool 54.1°F (12.3°C). Weather in May »

Weather in June

June, the first month of the summer in Grass Creek, is a comfortable month, with an average temperature ranging between min 46.8°F (8.2°C) and max 67.5°F (19.7°C). June's arrival signals an increase in average high-temperatures, moving from May's fresh 54.1°F (12.3°C) to a refreshing 67.5°F (19.7°C). Weather in June »

Weather in July

July is a moderately hot summer month in Grass Creek, Wyoming, with temperature in the range of an average high of 76.1°F (24.5°C) and an average low of 53.8°F (12.1°C). Grass Creek registers the highest average temperatures during the month of July, with peaks of 76.1°F (24.5°C) and lows of 53.8°F (12.1°C). Weather in July »

Weather in August

August, the last month of the summer in Grass Creek, is another warm month, with an average temperature ranging between min 52.7°F (11.5°C) and max 73.9°F (23.3°C). The shift into August records an average high-temperature of a still moderately hot 73.9°F (23.3°C), subtly varied from July's 76.1°F (24.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an enjoyable month in Grass Creek, Wyoming, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 65.8°F (18.8°C). September heralds a minor drop in average high-temperature, sliding from August's moderately hot 73.9°F (23.3°C) to a comfortable 65.8°F (18.8°C). Weather in September »

Weather in October

October, the same as September, in Grass Creek, Wyoming, is another chilly autumn month, with an average temperature ranging between max 48.9°F (9.4°C) and min 32.7°F (0.4°C). The arrival of October brings a significant change in Grass Creek's weather, with average high-temperatures dropping from September's enjoyable 65.8°F (18.8°C) to a chilly 48.9°F (9.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an icy month in Grass Creek, Wyoming, with temperature in the range of an average low of 21.4°F (-5.9°C) and an average high of 36.9°F (2.7°C). As November begins, there is a decrease in the average high-temperature, falling from a chilly 48.9°F (9.4°C) in October to an icy 36.9°F (2.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Grass Creek, Wyoming, with an average temperature varying between 11.8°F (-11.2°C) and 27.3°F (-2.6°C). December, with its average high-temperature of 27.3°F (-2.6°C) and an average low-temperature of 11.8°F (-11.2°C), holds the record as the coldest month. Weather in December »
[Resources]

Frequently asked questions

What is the driest month in Grass Creek?

January is the month with the least rainfall in Grass Creek. Rain falls for 1.6 days and accumulates 0.2" (5mm) of precipitation.

How many days does it rain in Grass Creek?

In Grass Creek, Wyoming, during the entire year, the rain falls for 93.8 days and collects up to 12.05" (306mm) of precipitation.

When does it snow in Grass Creek?

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

How many days does it snow in Grass Creek?

Throughout the year, in Grass Creek, there are 55.8 snowfall days, and 30.31" (770mm) of snow is accumulated.

What is the month with the lowest UV index in Grass Creek?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month in Grass Creek?

February is the most humid month in Grass Creek, Wyoming, with an average relative humidity of 77%.

What is the month with the least sunshine in Grass Creek?

With an average of 6.4h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST) in Grass Creek?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Grass Creek, 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 snowiest month in Grass Creek?

The month with the most snowfall is April, when snow falls for 9.4 days and typically aggregates up to 6.3" (160mm) of snow.

What is the wettest month in Grass Creek?

May is the month with the most rainfall in Grass Creek, Wyoming. Rain falls for 16.9 days and accumulates 2.48" (63mm) of precipitation.

When are the longest days in Grass Creek?

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

What is the month with the highest UV index in Grass Creek?

June and July, with an average maximum UV index of 5, are months with the highest UV index in Grass Creek.

What time of the year is the hottest in Grass Creek?

Temperature records in Grass Creek mark July as the warmest month, with highs averaging 76.1°F (24.5°C) and lows at 53.8°F (12.1°C).

What is the least humid month in Grass Creek?

The least humid month in Grass Creek is July, with an average relative humidity of 43%.

When it does not snow in Grass Creek?

In Grass Creek, Wyoming, snow does not fall in July and August.

What month has the most sunshine in Grass Creek?

The month with the most sunshine is July, with an average of 11.7h of sunshine.

What is the coldest month in Grass Creek?

The coldest time of the year is December, with temperatures averaging a high of 27.3°F (-2.6°C) and a low of 11.8°F (-11.2°C).

What is the month with the shortest days in Grass Creek?

The month with the shortest days in Grass Creek, Wyoming, is December, with an average of 9h and 0min of daylight.

Average temperature
Grass Creek, WY

Average temperature - Grass Creek, WY

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is December (27.3°F).

The month with the highest average low temperature is July (53.8°F).
The coldest month (with the lowest average low temperature) is December (11.8°F).

[Resources]

Average pressure
Grass Creek, WY

Average pressure - Grass Creek, WY

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

[Resources]

Average wind speed
Grass Creek, WY

Average wind speed - Grass Creek, WY

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

[Resources]

Average rainfall
Grass Creek, WY

Average rainfall - Grass Creek, WY

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is January (0.2").

[Resources]

Average rainfall days
Grass Creek, WY

Average rainfall days - Grass Creek, WY

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (1.6 days).

[Resources]

Average snowfall
Grass Creek, WY

Average snowfall - Grass Creek, WY

The month with the highest snowfall is April (6.3").
The months with the least snowfall are July and August (0").

[Resources]

Average snowfall days
Grass Creek, WY

Average snowfall days - Grass Creek, WY

The month with the highest number of snowfall days is April (9.4 days).
The months with the least snowfall days are July and August (0 days).

[Resources]

Average daylight / Average sunshine
Grass Creek, WY

Average daylight / Average sunshine - Grass Creek, 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: 6h and 24min).

[Resources]

Average sunshine days
Grass Creek, WY

Average sunshine days - Grass Creek, WY

The month with the most sunshine days is January (25 days).
The month with the least sunshine days is May (10.2 days).

[Resources]

Average UV index
Grass Creek, WY

Average UV index - Grass Creek, WY

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

[Resources]

Average visibility
Grass Creek, WY

Average visibility - Grass Creek, WY

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

[Resources]

Grass Creek, Wyoming, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location