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
In Saint Lawrence, the average high-temperature in May rises, from a fresh 54.5°F (12.5°C) in April, to an enjoyable 66.7°F (19.3°C). During May, Saint Lawrence experiences a consistent low-temperature average of 48.2°F (9°C).Humidity
In Saint Lawrence, South Dakota, the average relative humidity in May is 68%.Rainfall
In May, the rain falls for 13.6 days. Throughout May, 2.09" (53mm) of precipitation is accumulated. In Saint Lawrence, during the entire year, the rain falls for 97.3 days and collects up to 16.73" (425mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Saint Lawrence aggregates 0.04" (1mm) of snow. In Saint Lawrence, South Dakota, during the entire year, snow falls for 47.1 days and aggregates up to 16.06" (408mm) of snow.Daylight
The average length of the day in May in Saint Lawrence is 14h and 50min.On the first day of the month, sunrise is at 6:24 am and sunset at 8:40 pm. On the last day of May, sunrise is at 5:54 am and sunset at 9:13 pm CDT.
Sunshine
In May, the average sunshine in Saint Lawrence is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 5 during May translates into these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Saint Lawrence?
What is the average humidity in May in Saint Lawrence?
How much does it rain in Saint Lawrence in May?
What is the last month it snows in Saint Lawrence?
How many hours of daylight does Saint Lawrence have in May?
What time are sunrise and sunset in May in Saint Lawrence?
How long on average sun shines in May in Saint Lawrence?
How high is the UV index in May in Saint Lawrence?
Average temperature in May
Saint Lawrence, SD
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in May: 48.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in May
Saint Lawrence, SD
- Average pressure in May: 29.91"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Saint Lawrence, SD
- Average wind speed in May: 10.2mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in May
Saint Lawrence, SD
- Average humidity in May: 68%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in May
Saint Lawrence, SD
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in May
Saint Lawrence, SD
- Average rainfall days in May: 13.6 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in May
Saint Lawrence, SD
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Lawrence, SD
- Average snowfall days in May: 0.2 days
The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Saint Lawrence, SD
- Average daylight in May: 14h and 5min
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 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Saint Lawrence, SD
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in May
Saint Lawrence, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Saint Lawrence, SD
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in May
Saint Lawrence, 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).
Saint Lawrence, South Dakota, USA
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