May weather forecastHazel, SD
May
Weather in May
The last month of the spring, May, is a refreshing month in Hazel, South Dakota, with an average temperature fluctuating between 64.6°F (18.1°C) and 46.9°F (8.3°C).Temperature
As April transitions into May, Hazel sees a rise in the average high-temperature, moving from a cool 51.6°F (10.9°C) to a comfortable 64.6°F (18.1°C). The average low-temperature during May nights is a chilly 46.9°F (8.3°C).Humidity
In May, the average relative humidity is 71%.Rainfall
In Hazel, during May, the rain falls for 16.3 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Hazel. May is the last month it regularly snows. During 0.8 snowfall days, in May, Hazel aggregates 0.12" (3mm) of snow. In Hazel, during the entire year, snow falls for 64.3 days and aggregates up to 17.56" (446mm) of snow.Daylight
In May, the average length of the day is 14h and 51min.On the first day of May, sunrise is at 6:17 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 9:07 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a regular UV index of 5 translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hazel, SD
- Average high temperature in May: 64.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in May: 46.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in May
Hazel, SD
- Average pressure in May: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Hazel, SD
- Average wind speed in May: 10.3mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in May
Hazel, SD
- Average humidity in May: 71%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in May
Hazel, SD
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in May
Hazel, SD
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in May
Hazel, SD
- Average snowfall in May: 0.12"
The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hazel, SD
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Hazel, SD
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Hazel, SD
- Average sunshine days in May: 11.9 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in May
Hazel, SD
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Hazel, SD
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Hazel, SD
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





