April weather forecast
Keystone, NE

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Weather in April

April in Keystone, Nebraska, is a refreshing spring month, with an average temperature ranging between max 59.5°F (15.3°C) and min 39.7°F (4.3°C).

Temperature

The commencement of April sees a minor shift in the average high-temperature, moving from a cool 52.5°F (11.4°C) in March to a mild 59.5°F (15.3°C). The average low-temperature of 39.7°F (4.3°C) is witnessed during April.

Humidity

In Keystone, the average relative humidity in April is 58%.

Rainfall

In Keystone, Nebraska, in April, it is raining for 13.6 days, with typically 1.97" (50mm) of accumulated precipitation. In Keystone, during the entire year, the rain falls for 117.3 days and collects up to 17.28" (439mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Keystone, in April, during 2.3 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Keystone, Nebraska, during the entire year, snow falls for 35 days and aggregates up to 14.65" (372mm) of snow.

Daylight

The average length of the day in April in Keystone is 13h and 21min.
On the first day of April, sunrise is at 6:28 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:42 pm MDT.

Sunshine

The average sunshine in April in Keystone is 9.9h.

UV index

In April, the average daily maximum UV index in Keystone is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, an average UV index of 3 transforms into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What are April temperatures in Keystone?

April temperatures in Keystone, Nebraska, vary between a high-temperature of 59.5°F (15.3°C) and a low-temperature of 39.7°F (4.3°C).

What is the average humidity in April in Keystone?

The average relative humidity in April is 58%.

How many days does it rain in April in Keystone?

In April, the rain falls for 13.6 days. Throughout April, 1.97" (50mm) of precipitation is accumulated.

How many days does it snow in April in Keystone?

In Keystone, Nebraska, in April, during 2.3 snowfall days, 1.42" (36mm) of snow is typically accumulated.

How many hours of daylight does Keystone have in April?

In April, the average day length in Keystone, Nebraska, is 13h and 21min.

What time are sunrise and sunset in April in Keystone?

On the first day of April, sunrise is at 6:28 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:42 pm MDT.

How many hours of sunshine does Keystone have in April?

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

What is the UV index reading in April in Keystone?

The average daily maximum UV index in April in Keystone, Nebraska, is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Keystone, NE

Average temperature in April - Keystone, NE
  • Average high temperature in April: 59.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (37.4°F).

  • Average low temperature in April: 39.7°F

The month with the highest average low temperature is July (65.8°F).
The coldest months (with the lowest average low temperature) are January and December (22.3°F).

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Average pressure in April
Keystone, NE

Average pressure in April - Keystone, NE
  • Average pressure in April: 29.9"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in April
Keystone, NE

Average wind speed in April - Keystone, NE
  • Average wind speed in April: 12.6mph

The windiest month (with the highest average wind speed) is April (12.6mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).

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Average humidity in April
Keystone, NE

Average humidity in April - Keystone, NE
  • Average humidity in April: 58%

The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is September (53%).

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Average rainfall in April
Keystone, NE

Average rainfall in April - Keystone, NE
  • Average rainfall in April: 1.97"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in April
Keystone, NE

Average rainfall days in April - Keystone, NE
  • Average rainfall days in April: 13.6 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (3.8 days).

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Average snowfall in April
Keystone, NE

Average snowfall in April - Keystone, NE
  • Average snowfall in April: 1.42"

The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Keystone, NE

Average snowfall days in April - Keystone, NE
  • Average snowfall days in April: 2.3 days

The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Keystone, NE

Average daylight in April / Average sunshine in April - Keystone, NE
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in April: 9h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).

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Average sunshine days in April
Keystone, NE

Average sunshine days in April - Keystone, NE
  • Average sunshine days in April: 12.2 days

The month with the most sunshine days is November (22.7 days).
The months with the least sunshine days are May and June (10.6 days).

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Average UV index in April
Keystone, NE

Average UV index in April - Keystone, NE
  • Average UV index in April: 3

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
Keystone, NE

Average cloud cover in April - Keystone, NE
  • Average cloud cover in April: 34

The month with the most cloud cover is February (Cloud cover 36).
The months with the least cloud cover are July, August and September (Cloud cover 20).

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Average visibility in April
Keystone, NE

Average visibility in April - Keystone, NE
  • 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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Keystone, Nebraska, USA

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