April weather forecast
Grasmere, ID

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Weather in April

April in Grasmere, Idaho, is a mild spring month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 59.9°F (15.5°C).

Temperature

April introduces a marginal temperature uplift, with average high-temperatures adjusting from March's cool 52.9°F (11.6°C) to a mild 59.9°F (15.5°C). An average nighttime temperature of 41.5°F (5.3°C) is witnessed throughout April.

Humidity

In April, the average relative humidity in Grasmere is 48%.

Rainfall

In Grasmere, during April, the rain falls for 10.8 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, in Grasmere, Idaho, there are 100.2 rainfall days, and 7.48" (190mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Grasmere. April is the last month it regularly snows in Grasmere, Idaho. During 0.3 snowfall days, in April, Grasmere aggregates 0.08" (2mm) of snow. Throughout the year, in Grasmere, there are 17.1 snowfall days, and 6.34" (161mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 24min.
On the first day of April, sunrise is at 7:24 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:42 pm MDT.

Sunshine

The average sunshine in April in Grasmere is 9.9h.

UV index

In April, the average daily maximum UV index in Grasmere, Idaho, is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 4 in April translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What are the temperatures in Grasmere in April?

An average high-temperature, in April, in Grasmere, is 59.9°F (15.5°C) and the average low-temperature is 41.5°F (5.3°C).

What is the average humidity in April in Grasmere?

In April, the average relative humidity is 48%.

How much does it rain in Grasmere in April?

In Grasmere, in April, it is raining for 10.8 days, with typically 0.75" (19mm) of accumulated precipitation.

What is the last month it snows in Grasmere?

April is the last month it regularly snows in Grasmere, Idaho. During 0.3 snowfall days, in April, Grasmere aggregates 0.08" (2mm) of snow.

How many hours of daylight does Grasmere have in April?

The average day length in April in Grasmere is 13h and 24min.

What time are sunrise and sunset in April in Grasmere?

On the first day of April in Grasmere, Idaho, sunrise is at 7:24 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:42 pm MDT.

How many hours of sunshine does Grasmere have in April?

In Grasmere, the average sunshine duration in April is 9.9h.

What is the UV index intensity in April in Grasmere?

The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Grasmere, ID

Average temperature in April - Grasmere, ID
  • Average high temperature in April: 59.9°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (36.7°F).

  • Average low temperature in April: 41.5°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).

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Average pressure in April
Grasmere, ID

Average pressure in April - Grasmere, ID
  • Average pressure in April: 29.96"Hg

The month with the highest atmospheric pressure is January (30.26"Hg).
The months with the lowest atmospheric pressure are June and August (29.88"Hg).

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Average wind speed in April
Grasmere, ID

Average wind speed in April - Grasmere, ID
  • Average wind speed in April: 8.8mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest months (with the lowest average wind speed) are January and September (6.5mph).

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Average humidity in April
Grasmere, ID

Average humidity in April - Grasmere, ID
  • Average humidity in April: 48%

The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is July (25%).

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Average rainfall in April
Grasmere, ID

Average rainfall in April - Grasmere, ID
  • Average rainfall in April: 0.75"

The wettest month (with the highest rainfall) is December (1.06").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in April
Grasmere, ID

Average rainfall days in April - Grasmere, ID
  • Average rainfall days in April: 10.8 days

The month with the highest number of rainy days is March (14.3 days).
The months with the least rainy days are July and August (3.7 days).

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Average snowfall in April
Grasmere, ID

Average snowfall in April - Grasmere, ID
  • Average snowfall in April: 0.08"

The month with the highest snowfall is December (2.64").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in April
Grasmere, ID

Average snowfall days in April - Grasmere, ID
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Grasmere, 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 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

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Average sunshine days in April
Grasmere, ID

Average sunshine days in April - Grasmere, ID
  • Average sunshine days in April: 15.8 days

The month with the most sunshine days is July (24 days).
The month with the least sunshine days is March (13.6 days).

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Average UV index in April
Grasmere, ID

Average UV index in April - Grasmere, ID
  • Average UV index in April: 4

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

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Average cloud cover in April
Grasmere, ID

Average cloud cover in April - Grasmere, ID
  • Average cloud cover in April: 26

The month with the most cloud cover is December (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in April
Grasmere, ID

Average visibility in April - Grasmere, ID
  • 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).

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Grasmere, Idaho, USA

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