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
With the onset of May, Rockyford's average high-temperature experiences a rise, moving from April's moderate 55.9°F (13.3°C) to a comfortable 66.2°F (19°C). In the month of May, the nighttime temperature dips to a steady average of 46.9°F (8.3°C).Humidity
In Rockyford, the average relative humidity in May is 62%.Rainfall
May is the month with the most rainfall in Rockyford. Rain falls for 13.1 days and accumulates 2.13" (54mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Rockyford. May is the last month it regularly snows. During 1.2 snowfall days, in May, Rockyford aggregates 2.17" (55mm) of snow. In Rockyford, during the entire year, snow falls for 47.4 days and aggregates up to 22.72" (577mm) of snow.Daylight
In Rockyford, the average length of the day in May is 14h and 44min.On the first day of the month, sunrise is at 5:41 am and sunset at 7:52 pm. On the last day of May, in Rockyford, sunrise is at 5:11 am and sunset at 8:23 pm MDT.
Sunshine
In Rockyford, South Dakota, the average sunshine in May is 9.6h.UV index
In Rockyford, South Dakota, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 5 suggests these recommendations:
Make use of precautions - It is urged to ward off sun damage. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the temperature in May in Rockyford?
What is the average humidity in May in Rockyford?
What is the wettest month in Rockyford?
How much does it rain in Rockyford in May?
What is the last month it snows in Rockyford?
What is the average length of the day in May in Rockyford?
When are sunrise and sunset in May in Rockyford?
How many hours of sunshine does Rockyford have in May?
What is the UV index reading in May in Rockyford?
Average temperature in May
Rockyford, SD
- Average high temperature in May: 66.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in May: 46.9°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in May
Rockyford, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Rockyford, SD
- Average wind speed in May: 11.4mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (10.2mph).
Average humidity in May
Rockyford, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (48%).
Average rainfall in May
Rockyford, SD
- Average rainfall in May: 2.13"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in May
Rockyford, SD
- Average rainfall days in May: 13.1 days
The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are February and December (2.5 days).
Average snowfall in May
Rockyford, SD
- Average snowfall in May: 2.17"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Rockyford, SD
- Average snowfall days in May: 1.2 days
The month with the highest number of snowfall days is February (11.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Rockyford, 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 4min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in May
Rockyford, SD
- Average sunshine days in May: 15.5 days
The month with the most sunshine days is September (22.8 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in May
Rockyford, SD
- 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
Rockyford, SD
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in May
Rockyford, 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).
Rockyford, South Dakota, USA
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