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 shift into May brings an increase in the average high-temperature, moving from a cool 53.2°F (11.8°C) in April to an enjoyable 66.4°F (19.1°C). In Astoria, an average low-temperature of 48.6°F (9.2°C) is recorded during May nights.Humidity
The average relative humidity in May is 69%.Rainfall
In Astoria, South Dakota, during May, the rain falls for 14.3 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Astoria, during the entire year, the rain falls for 101.9 days and collects up to 14.61" (371mm) of precipitation.Snowfall
Months with snowfall in Astoria, South Dakota, are January through May, October through December. May is the last month it regularly snows in Astoria, South Dakota. During 0.3 snowfall days, in May, Astoria aggregates 0.12" (3mm) of snow. Throughout the year, there are 49.9 snowfall days, and 14.02" (356mm) of snow is accumulated.Daylight
The average length of the day in May in Astoria, South Dakota, is 14h and 50min.On the first day of May in Astoria, South Dakota, sunrise is at 6:15 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 9:03 pm CDT.
Sunshine
In Astoria, South Dakota, the average sunshine in May is 8.9h.UV index
In Astoria, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What are the temperatures in Astoria in May?
What is the average humidity in May in Astoria?
How much does it rain in Astoria in May?
What is the last month it snows in Astoria?
How many hours of daylight does Astoria have in May?
What time are sunrise and sunset in May in Astoria?
How many hours of sunshine does Astoria have in May?
What is the UV index intensity in May in Astoria?
Average temperature in May
Astoria, SD
- Average high temperature in May: 66.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in May: 48.6°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in May
Astoria, SD
- Average pressure in May: 29.93"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Astoria, SD
- Average wind speed in May: 9.7mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in May
Astoria, SD
- Average humidity in May: 69%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Astoria, SD
- Average rainfall in May: 1.89"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in May
Astoria, SD
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in May
Astoria, SD
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Astoria, SD
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Astoria, 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: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Astoria, SD
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in May
Astoria, 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 November (UV index 1).
Average cloud cover in May
Astoria, SD
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in May
Astoria, 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).
Astoria, South Dakota, USA
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