April weather forecastKeystone, NE
April
Weather in April
April is a mild spring month in Keystone, Nebraska, with temperature in the range of an average high of 59.5°F (15.3°C) and an average low of 39.7°F (4.3°C).Temperature
With the start of April, the average high-temperature marginally shifts from March's cool 52.5°F (11.4°C) to a refreshing 59.5°F (15.3°C). During the month of April, Keystone's nighttime temperature lowers to an average of 39.7°F (4.3°C).Humidity
In Keystone, the average relative humidity in April is 58%.Rainfall
In Keystone, in April, during 13.6 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, there are 117.3 rainfall days, and 17.28" (439mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In April, it is snowing for 2.3 days. Throughout April, 1.42" (36mm) of snow is accumulated. In Keystone, during the entire year, snow falls for 35 days and aggregates up to 14.65" (372mm) of snow.Daylight
In Keystone, the average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:11 pm. On the last day of April, sunrise is at 5:43 am and sunset at 7:42 pm MDT.
Sunshine
The average sunshine in April is 9.9h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 3 during April translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in April /
Average sunshine in April
Keystone, NE
- Average daylight in April: 13h and 18min
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 54min
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).
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).
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).
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).
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).
