Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May introduces a minor uplift in high-temperatures, adjusting from a refreshing 59.5°F (15.3°C) in April to a pleasant 68.4°F (20.2°C). Keystone experiences a nighttime temperature average of 48.7°F (9.3°C) during May.Humidity
In Keystone, the average relative humidity in May is 61%.Rainfall
May is the month with the most rainfall. Rain falls for 17 days and accumulates 3.39" (86mm) of precipitation.Snowfall
Months with snowfall in Keystone, Nebraska, are January through May, October through December. May is the last month it regularly snows in Keystone. During 0.6 snowfall days, in May, Keystone aggregates 0.43" (11mm) of snow. In Keystone, 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 May is 14h and 31min.On the first day of May in Keystone, sunrise is at 5:42 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:12 pm MDT.
Sunshine
In Keystone, the average sunshine in May is 9.8h.UV index
The average daily maximum UV index in May in Keystone is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 suggests these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the temperature in May in Keystone?
What is the average humidity in May in Keystone?
What is the rainiest month in Keystone?
How much does it rain in Keystone in May?
What is the last month it snows in Keystone?
What is the average length of the day in May in Keystone?
What time are sunrise and sunset in May in Keystone?
How many hours of sunshine does Keystone have in May?
How high is the UV index in May in Keystone?
Average temperature in May
Keystone, NE
- Average high temperature in May: 68.4°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 May: 48.7°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 May
Keystone, NE
- Average pressure in May: 29.89"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 May
Keystone, NE
- Average wind speed in May: 11.4mph
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 May
Keystone, NE
- Average humidity in May: 61%
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is September (53%).
Average rainfall in May
Keystone, NE
- Average rainfall in May: 3.39"
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 May
Keystone, NE
- Average rainfall days in May: 17 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 May
Keystone, NE
- Average snowfall in May: 0.43"
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 May
Keystone, NE
- Average snowfall days in May: 0.6 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 May /
Average sunshine in May
Keystone, NE
- Average daylight in May: 14h and 3min
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 May: 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).
Average sunshine days in May
Keystone, NE
- Average sunshine days in May: 10.6 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 May
Keystone, NE
- Average UV index in May: 5
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 May
Keystone, NE
- Average cloud cover in May: 33
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 May
Keystone, NE
- Average visibility in May: 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).
Keystone, Nebraska, USA
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