April weather forecast
Lanark, ID

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Weather in April

April is a frosty spring month in Lanark, Idaho, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 25°F (-3.9°C).

Temperature

The arrival of April signals an increase in the average high-temperature, moving from a cold 34.5°F (1.4°C) in March to a chilly 44.2°F (6.8°C). Lanark usually reports an average low-temperature of 25°F (-3.9°C) during the month of April.

Humidity

In Lanark, the average relative humidity in April is 77%.

Rainfall

In Lanark, Idaho, during April, the rain falls for 14.7 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Lanark, Idaho, during the entire year, the rain falls for 117.5 days and collects up to 20.24" (514mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In April, in Lanark, it is snowing for 12.3 days. Throughout April, 9.65" (245mm) of snow is accumulated. In Lanark, during the entire year, snow falls for 116.1 days and aggregates up to 91.14" (2315mm) of snow.

Daylight

The average length of the day in April in Lanark, Idaho, is 13h and 24min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of April, in Lanark, sunrise is at 6:21 am and sunset at 8:24 pm MDT.

Sunshine

In Lanark, the average sunshine in April is 9.1h.

UV index

In Lanark, the average daily maximum UV index in April is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 2 in April, converts into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Enhance your sun protection with tightly woven, yet airy clothing. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Lanark in April?

The average high-temperature and low-temperature in Lanark during April are 44.2°F (6.8°C) and 25°F (-3.9°C) respectively.

What is the average humidity in April in Lanark?

The average relative humidity in April in Lanark, Idaho, is 77%.

How many days does it rain in April in Lanark?

In Lanark, Idaho, in April, during 14.7 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

How many days does it snow in April in Lanark?

In Lanark, Idaho, during April, snow falls for 12.3 days and regularly aggregates up to 9.65" (245mm) of snow.

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

In Lanark, Idaho, the average day length in April is 13h and 24min.

When are sunrise and sunset in April in Lanark?

In April, on the first day of the month, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of the month, in Lanark, sunrise is at 6:21 am and sunset at 8:24 pm MDT.

How many hours of sunshine does Lanark have in April?

The average sunshine duration in April is 9.1h.

How high is the UV index in April in Lanark?

In Lanark, Idaho, the average daily maximum UV index in April is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe 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
Lanark, ID

Average temperature in April - Lanark, ID
  • Average high temperature in April: 44.2°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (25.2°F).

  • Average low temperature in April: 25°F

The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).

Average pressure in April
Lanark, ID

Average pressure in April - Lanark, ID
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in April
Lanark, ID

Average wind speed in April - Lanark, ID
  • Average wind speed in April: 5.5mph

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 (4.2mph).

Average humidity in April
Lanark, ID

Average humidity in April - Lanark, ID
  • Average humidity in April: 77%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).

Average rainfall in April
Lanark, ID

Average rainfall in April - Lanark, ID
  • Average rainfall in April: 2.48"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is July (0.63").

Average rainfall days in April
Lanark, ID

Average rainfall days in April - Lanark, ID
  • Average rainfall days in April: 14.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6 days).

Average snowfall in April
Lanark, ID

Average snowfall in April - Lanark, ID
  • Average snowfall in April: 9.65"

The month with the highest snowfall is February (18.39").
The months with the least snowfall are July and August (0").

Average snowfall days in April
Lanark, ID

Average snowfall days in April - Lanark, ID
  • Average snowfall days in April: 12.3 days

The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in April /
Average sunshine in April
Lanark, ID

Average daylight in April / Average sunshine in April - Lanark, ID
  • 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 6min).

  • Average sunshine in April: 9h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in April
Lanark, ID

Average sunshine days in April - Lanark, ID
  • Average sunshine days in April: 7.6 days

The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is February (6.8 days).

Average UV index in April
Lanark, ID

Average UV index in April - Lanark, ID
  • Average UV index in April: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in April
Lanark, ID

Average cloud cover in April - Lanark, ID
  • Average cloud cover in April: 39

The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in April
Lanark, ID

Average visibility in April - Lanark, ID
  • Average visibility in April: 5mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

Lanark, Idaho, USA

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