April weather forecast
Lewis, CO

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Weather in April

April in Lewis, Colorado, is a moderate spring month, with an average temperature varying between 37.4°F (3°C) and 58.8°F (14.9°C).

Temperature

The onset of April introduces a subtle rise in the average high-temperature, nudging from a cool 50.2°F (10.1°C) in March to a mild 58.8°F (14.9°C). In Lewis, the nighttime temperature averages to a wintry 37.4°F (3°C) during April.

Humidity

The average relative humidity in April in Lewis is 39%.

Rainfall

In Lewis, during April, the rain falls for 8.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Lewis, during the entire year, the rain falls for 78.9 days and collects up to 9.84" (250mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. April is the last month it regularly snows in Lewis. During 1.6 snowfall days, in April, Lewis aggregates 0.67" (17mm) of snow. Throughout the year, in Lewis, there are 34.4 snowfall days, and 29.29" (744mm) of snow is accumulated.

Daylight

In Lewis, the average length of the day in April is 13h and 11min.
On the first day of April, sunrise is at 6:58 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:04 pm MDT.

Sunshine

The average sunshine in April in Lewis is 11.1h.

UV index

The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 4 in April translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Lewis?

In Lewis, in April, the average high-temperature is 58.8°F (14.9°C), and the average low-temperature is 37.4°F (3°C).

What is the average humidity in April in Lewis?

In Lewis, Colorado, the average relative humidity in April is 39%.

How many days does it rain in April in Lewis?

In April, in Lewis, the rain falls for 8.5 days. Throughout April, 0.67" (17mm) of precipitation is accumulated.

What is the last month it snows in Lewis?

April is the last month it regularly snows in Lewis, Colorado. During 1.6 snowfall days, in April, Lewis aggregates 0.67" (17mm) of snow.

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

In Lewis, the average day length in April is 13h and 11min.

When is the sunrise / sunset in April in Lewis?

On the first day of April in Lewis, Colorado, sunrise is at 6:58 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:04 pm MDT.

How many hours of sunshine does Lewis have in April?

In April, the average sunshine duration in Lewis, Colorado, is 11.1h.

How high is the UV index in April in Lewis?

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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
Lewis, CO

Average temperature in April - Lewis, CO
  • Average high temperature in April: 58.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in April: 37.4°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 (19.8°F).

Average pressure in April
Lewis, CO

Average pressure in April - Lewis, CO
  • Average pressure in April: 29.9"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in April
Lewis, CO

Average wind speed in April - Lewis, CO
  • Average wind speed in April: 9.3mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).

Average humidity in April
Lewis, CO

Average humidity in April - Lewis, CO
  • Average humidity in April: 39%

The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is June (26%).

Average rainfall in April
Lewis, CO

Average rainfall in April - Lewis, CO
  • Average rainfall in April: 0.67"

The wettest months (with the highest rainfall) are January and December (1.26").
The driest month (with the least rainfall) is June (0.2").

Average rainfall days in April
Lewis, CO

Average rainfall days in April - Lewis, CO
  • Average rainfall days in April: 8.5 days

The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is June (2.8 days).

Average snowfall in April
Lewis, CO

Average snowfall in April - Lewis, CO
  • Average snowfall in April: 0.67"

The month with the highest snowfall is January (8.11").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Lewis, CO

Average snowfall days in April - Lewis, CO
  • Average snowfall days in April: 1.6 days

The months with the highest number of snowfall days are January and December (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Lewis, CO

Average daylight in April / Average sunshine in April - Lewis, CO
  • Average daylight in April: 13h and 1min

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).

  • Average sunshine in April: 11h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 30min).

Average sunshine days in April
Lewis, CO

Average sunshine days in April - Lewis, CO
  • Average sunshine days in April: 19 days

The month with the most sunshine days is June (26.2 days).
The month with the least sunshine days is February (17.6 days).

Average UV index in April
Lewis, CO

Average UV index in April - Lewis, CO
  • Average UV index in April: 4

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

Average cloud cover in April
Lewis, CO

Average cloud cover in April - Lewis, CO
  • Average cloud cover in April: 20

The months with the most cloud cover are January and December (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 9).

Average visibility in April
Lewis, CO

Average visibility in April - Lewis, CO
  • Average visibility in April: 6mi

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).

Lewis, Colorado, USA

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