Riverton
Wyoming, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Riverton, WY

April is a fresh spring month in Riverton, Wyoming, with average temperature ranging between max 54.1°F (12.3°C) and min 35.2°F (1.8°C).

Temperature

In April, the average high-temperature marginally rises, from a frosty 46°F (7.8°C) in March, to a cool 54.1°F (12.3°C). In Riverton, the average low-temperature is 35.2°F (1.8°C).

Humidity

The average relative humidity in April is 53%.

Rainfall

In Riverton, in April, it is raining for 8.8 days, with typically 1.14" (29mm) of accumulated precipitation. In Riverton, during the entire year, the rain falls for 67.3 days and collects up to 6.93" (176mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Riverton, Wyoming. April is the month with the most snowfall. Snow falls for 5.7 days and accumulates 5.39" (137mm) of snow.

Daylight

The average length of the day in Riverton is 13.5h.

Sunshine

The average sunshine in April is 10.7h.

UV index

The average daily maximum UV index in Riverton is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in April in Riverton?

In April, in Riverton, Wyoming, the average high-temperature is 54.1°F (12.3°C), and the average low-temperature is 35.2°F (1.8°C).

What is the average humidity in April in Riverton?

The average relative humidity in April in Riverton, Wyoming, is 53%.

How much does it rain in Riverton in April?

In Riverton, Wyoming, in April, it is raining for 8.8 days, with typically 1.14" (29mm) of accumulated precipitation.

How much does it snow in Riverton in April?

In Riverton, Wyoming, during April, snow falls for 5.7 days and regularly aggregates up to 5.39" (137mm) of snow.

What is the snowiest month in Riverton?

April is the month with the most snowfall in Riverton. Snow falls for 5.7 days and accumulates 5.39" (137mm) of snow.

What is the average length of the day in April in Riverton?

The average length of the day in April in Riverton is 13.5h.

How long on average sun shines in April in Riverton?

In April, the average sunshine in Riverton is 10.7h.

What is the UV index intensity in April in Riverton?

In April, the average daily maximum UV index in Riverton is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in April - Riverton, WY
  • Average high temperature in April: 54.1°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (30.9°F).

  • Average low temperature in April: 35.2°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

Average humidity in April - Riverton, WY
  • Average humidity in April: 53%

The month with the highest relative humidity is January (77%).
Months with the lowest relative humidity are July and August (31%).

Average rainfall in April - Riverton, WY
  • Average rainfall in April: 1.14"

The wettest month (with the highest rainfall) is May (1.42").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in April - Riverton, WY
  • Average rainfall days in April: 8.8 days

The month with the highest number of rainy days is May (9.9 days).
The month with the least rainy days is January (2.5 days).

Average snowfall in April - Riverton, WY
  • Average snowfall in April: 5.39"

The month with the highest snowfall is April (5.39").
Months with the least snowfall are June, July and August (0").

Average snowfall days in April - Riverton, WY
  • Average snowfall days in April: 5.7 days

The month with the highest number of snowfall days is February (7.8 days).
Months with the least snowfall days are July and August (0 days).

Average daylight in April / Average sunshine in April - Riverton, WY
  • Average daylight in April: 13.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in April: 10.7h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 6.6h).

Average UV index in April - Riverton, WY
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).