April weather forecast
Sinclair, WY

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Weather in April

April in Sinclair, Wyoming, is a chilly spring month, with an average temperature ranging between max 47.8°F (8.8°C) and min 30.6°F (-0.8°C).

Temperature

April's onset witnesses a minor shift in the average high-temperature, moving from a wintry 39°F (3.9°C) in March to a frosty 47.8°F (8.8°C). Sinclair reports an average low-temperature of 30.6°F (-0.8°C) during the nights of April.

Humidity

The average relative humidity in April is 61%.

Rainfall

The month with the most rainfall is April, when the rain falls for 9.7 days and typically aggregates up to 1.42" (36mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is April, when snow falls for 8.9 days and typically aggregates up to 5.75" (146mm) of snow.

Daylight

In Sinclair, Wyoming, the average length of the day in April is 13h and 23min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:34 pm. On the last day of April, in Sinclair, sunrise is at 6:04 am and sunset at 8:06 pm MDT.

Sunshine

In April, the average sunshine is 10.1h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Sinclair, Wyoming. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in April translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the average April temperature in Sinclair?

The high-temperature in Sinclair, Wyoming, during April is 47.8°F (8.8°C) and the low-temperature is 30.6°F (-0.8°C).

What is the average humidity in April in Sinclair?

In April, the average relative humidity in Sinclair, Wyoming, is 61%.

What is the wettest month in Sinclair?

April is the month with the most rainfall in Sinclair. Rain falls for 9.7 days and accumulates 1.42" (36mm) of precipitation.

How much does it rain in Sinclair in April?

In April, in Sinclair, the rain falls for 9.7 days. Throughout April, 1.42" (36mm) of precipitation is accumulated.

What is the snowiest month in Sinclair?

The month with the most snowfall is April, when snow falls for 8.9 days and typically aggregates up to 5.75" (146mm) of snow.

How many days does it snow in April in Sinclair?

In April, in Sinclair, Wyoming, it is snowing for 8.9 days. Throughout April, 5.75" (146mm) of snow is accumulated.

How many hours of daylight does Sinclair have in April?

The average day length in April is 13h and 23min.

When are sunrise and sunset in April in Sinclair?

In April, on the first day of the month, sunrise is at 6:49 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:06 pm MDT.

How long on average sun shines in April in Sinclair?

The average sunshine duration in April is 10.1h.

When is the lowest UV index in Sinclair?

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

What is the UV index reading in April in Sinclair?

In Sinclair, the average daily maximum UV index in April is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Sinclair, WY

Average temperature in April - Sinclair, WY
  • Average high temperature in April: 47.8°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is December (26.4°F).

  • Average low temperature in April: 30.6°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

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Average pressure in April
Sinclair, WY

Average pressure in April - Sinclair, WY
  • Average pressure in April: 29.92"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in April
Sinclair, WY

Average wind speed in April - Sinclair, WY
  • Average wind speed in April: 12.5mph

The windiest month (with the highest average wind speed) is November (13.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.5mph).

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Average humidity in April
Sinclair, WY

Average humidity in April - Sinclair, WY
  • Average humidity in April: 61%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are July and August (35%).

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Average rainfall in April
Sinclair, WY

Average rainfall in April - Sinclair, WY
  • Average rainfall in April: 1.42"

The wettest month (with the highest rainfall) is April (1.42").
The driest month (with the least rainfall) is August (0.35").

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Average rainfall days in April
Sinclair, WY

Average rainfall days in April - Sinclair, WY
  • Average rainfall days in April: 9.7 days

The month with the highest number of rainy days is May (11.7 days).
The month with the least rainy days is November (3.2 days).

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Average snowfall in April
Sinclair, WY

Average snowfall in April - Sinclair, WY
  • Average snowfall in April: 5.75"

The month with the highest snowfall is April (5.75").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Sinclair, WY

Average snowfall days in April - Sinclair, WY
  • Average snowfall days in April: 8.9 days

The month with the highest number of snowfall days is February (14.6 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in April /
Average sunshine in April
Sinclair, WY

Average daylight in April / Average sunshine in April - Sinclair, WY
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in April: 10h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

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Average sunshine days in April
Sinclair, WY

Average sunshine days in April - Sinclair, WY
  • Average sunshine days in April: 11.9 days

The month with the most sunshine days is June (21.1 days).
The month with the least sunshine days is February (11.2 days).

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Average UV index in April
Sinclair, WY

Average UV index in April - Sinclair, WY
  • Average UV index in April: 2

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

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Average cloud cover in April
Sinclair, WY

Average cloud cover in April - Sinclair, WY
  • Average cloud cover in April: 33

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 13).

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Average visibility in April
Sinclair, WY

Average visibility in April - Sinclair, WY
  • Average visibility in April: 6mi

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

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Sinclair, Wyoming, USA

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