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's arrival brings a temperature shift, moving from a refreshing 55.4°F (13°C) in April to an enjoyable 67.6°F (19.8°C). An average minimum temperature of 48.9°F (9.4°C) is recorded during the month of May.Humidity
In Rockham, the average relative humidity in May is 67%.Rainfall
In Rockham, in May, during 13.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, in Rockham, there are 97.6 rainfall days, and 17.83" (453mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Rockham, South Dakota.Daylight
The average length of the day in May in Rockham, South Dakota, is 14h and 52min.On the first day of May, sunrise is at 6:23 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 9:14 pm CDT.
Sunshine
In May, the average sunshine in Rockham is 9.1h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What is the usual temperature for Rockham in May?
What is the average humidity in May in Rockham?
How much does it rain in Rockham in May?
When it does not snow in Rockham?
Does it snow in Rockham in May?
What is the average length of the day in May in Rockham?
When are sunrise and sunset in May in Rockham?
How long on average sun shines in May in Rockham?
What is the UV index intensity in May in Rockham?
Average temperature in May
Rockham, SD
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in May
Rockham, 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 (29.84"Hg).
Average wind speed in May
Rockham, SD
- Average wind speed in May: 9.7mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in May
Rockham, SD
- Average humidity in May: 67%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in May
Rockham, SD
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in May
Rockham, SD
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in May
Rockham, SD
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Rockham, SD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rockham, 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: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Rockham, SD
- Average sunshine days in May: 15.2 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in May
Rockham, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in May
Rockham, SD
- Average cloud cover in May: 37
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in May
Rockham, 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).
Rockham, South Dakota, USA
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