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
May sees a rise in the average high-temperature, climbing from a refreshing 56.5°F (13.6°C) in April to a pleasant 68.2°F (20.1°C). Throughout May, Norris witnesses a consistent average low-temperature of 49.6°F (9.8°C).Humidity
In Norris, the average relative humidity in May is 60%.Rainfall
The month with the most rainfall in Norris is May, when the rain falls for 13.5 days and typically aggregates up to 2.09" (53mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Norris. May is the last month it regularly snows in Norris, South Dakota. During 0.6 snowfall days, in May, Norris aggregates 0.75" (19mm) of snow. In Norris, during the entire year, snow falls for 38.8 days and aggregates up to 16.1" (409mm) of snow.Daylight
In Norris, South Dakota, the average length of the day in May is 14h and 43min.On the first day of May in Norris, sunrise is at 6:36 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 9:18 pm CDT.
Sunshine
In Norris, the average sunshine in May is 9.8h.UV index
In May, the average daily maximum UV index in Norris is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 5 during May leads to these instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Norris in May?
What is the average humidity in May in Norris?
What is the rainiest month in Norris?
How much does it rain in Norris in May?
What is the last month it snows in Norris?
How many hours of daylight does Norris have in May?
When is the sunrise / sunset in May in Norris?
How long on average sun shines in May in Norris?
What is the UV index reading in May in Norris?
Average temperature in May
Norris, SD
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in May
Norris, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Norris, SD
- Average wind speed in May: 11.3mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).
Average humidity in May
Norris, SD
- Average humidity in May: 60%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).
Average rainfall in May
Norris, SD
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in May
Norris, SD
- Average rainfall days in May: 13.5 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in May
Norris, SD
- Average snowfall in May: 0.75"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Norris, SD
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Norris, SD
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in May
Norris, SD
- Average sunshine days in May: 15 days
The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).
Average UV index in May
Norris, SD
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Norris, SD
- Average cloud cover in May: 35
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in May
Norris, SD
- 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).
Norris, South Dakota, USA
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