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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another subzero cold winter month in Hayti, South Dakota, with an average temperature ranging between max 19.4°F (-7°C) and min 5.5°F (-14.7°C). Hayti, South Dakota, witnesses the coldest weather in January, with temperatures averaging a high of 19.4°F (-7°C) and a low of 5.5°F (-14.7°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Hayti, South Dakota, with temperature in the range of an average low of 8.4°F (-13.1°C) and an average high of 22.5°F (-5.3°C). February's onset records an average high-temperature of a still freezing cold 22.5°F (-5.3°C), a near match to January's 19.4°F (-7°C). Weather in February »
Weather in March
March, the first month of the spring in Hayti, is an icy month, with an average temperature varying between 23.7°F (-4.6°C) and 38.1°F (3.4°C). The onset of March marks a clear increase in the average high-temperature, escalating from a subzero cold 22.5°F (-5.3°C) in February to a cold 38.1°F (3.4°C). Weather in March »
Weather in April
April in Hayti, South Dakota, is a fresh spring month, with an average temperature fluctuating between 35.2°F (1.8°C) and 51.6°F (10.9°C). Hayti experiences a temperature shift with the start of April, with average high-temperatures moving from a cold 38.1°F (3.4°C) in March to a fresh 51.6°F (10.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Hayti, South Dakota, with an average temperature varying between 46.9°F (8.3°C) and 64.6°F (18.1°C). May indicates a change in the average high-temperature, moving up from a cool 51.6°F (10.9°C) in April to a refreshing 64.6°F (18.1°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Hayti, South Dakota, with an average temperature ranging between max 74.5°F (23.6°C) and min 56.8°F (13.8°C). The arrival of June brings a temperature shift, with the average high-temperature escalating from a refreshing 64.6°F (18.1°C) in May to a moderately hot 74.5°F (23.6°C). Weather in June »
Weather in July
July, like June, in Hayti, South Dakota, is another warm summer month, with an average temperature fluctuating between 80.8°F (27.1°C) and 60.8°F (16°C). Hayti's warmest month, July, generally records average temperatures ranging from a high of 80.8°F (27.1°C) to a low of 60.8°F (16°C). July's heat index is appraised at 84.2°F (29°C). Weather in July »
Weather in August
August, the last month of the summer in Hayti, is another warm month, with an average temperature varying between 59°F (15°C) and 80.1°F (26.7°C). Hayti observes a minor difference in average high-temperatures between July's 80.8°F (27.1°C) and August's 80.1°F (26.7°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Hayti, South Dakota, with an average temperature ranging between max 71.6°F (22°C) and min 51.3°F (10.7°C). A mild shift in the average high-temperature occurs in September, reducing from a moderately hot 80.1°F (26.7°C) in August to an agreeable 71.6°F (22°C). Weather in September »
Weather in October
October, the same as September, is a cool autumn month in Hayti, South Dakota, with an average temperature fluctuating between 39°F (3.9°C) and 54.3°F (12.4°C). October's arrival is marked by a significant decrease in the average high-temperature, moving from an agreeable 71.6°F (22°C) in September to a fresh 54.3°F (12.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Hayti, South Dakota, with an average temperature varying between 40.1°F (4.5°C) and 26.4°F (-3.1°C). November brings a decrease in the average high-temperature, shifting from a fresh 54.3°F (12.4°C) in October to an icy 40.1°F (4.5°C). Weather in November »
Weather in December
December, the first month of the winter in Hayti, is still a freezing cold month, with temperature in the range of an average high of 23.7°F (-4.6°C) and an average low of 12.4°F (-10.9°C). The onset of December marks a clear decrease in the average high-temperature, dropping from a cold 40.1°F (4.5°C) in November to a freezing cold 23.7°F (-4.6°C). Weather in December »
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
Temperature readings reach their annual highs in January, averaging 19.4°F (-7°C) and a minimum average of 5.5°F (-14.7°C).
What is the most humid month?
The most humid month is January, with an average relative humidity of 90%.
What is the driest month?
The months with the least rainfall are January and February Rain falls for 2.9 days and accumulates 0.59" (15mm) of rain.
How many days does it rain?
Throughout the year, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
When does it snow the most?
The months with the most snowfall are January and December, with an average 3.74" (95mm) of accumulated snow.
How many days does it snow?
Throughout the year, in Hayti, there are 64.3 snowfall days, and 17.56" (446mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.6h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month?
The month with the most rainfall is June, when the rain falls for 17.2 days and typically aggregates up to 3.19" (81mm) of precipitation.
When it does not snow?
In Hayti, snow does not fall in June through September.
When are the longest days?
With an average of 15h and 30min of daylight, June has the longest days of the year.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the hottest time of year?
The warmest time of the year is July, with temperatures averaging a high of 80.8°F (27.1°C) and a low of 60.8°F (16°C).
What month has the most sunshine?
With an average of 10.7h of sunshine, July has the most sunshine of the year.
What are the least humid months?
The months with the lowest humidity are September and October, with an average relative humidity of 68%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Hayti, SD
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).
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
Hayti, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"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
Hayti, SD
- Average wind speed in January:
11mph - Average wind speed in February:
10.8mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.6mph - Average wind speed in May:
10.3mph - Average wind speed in June:
9.4mph
- Average wind speed in July:
8.5mph - Average wind speed in August:
8.6mph - Average wind speed in September:
10mph - Average wind speed in October:
11.2mph - Average wind speed in November:
11mph - Average wind speed in December:
11mph
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
Hayti, SD
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall
Hayti, SD
- Average rainfall in January:
0.59" - Average rainfall in February:
0.59" - Average rainfall in March:
1.02" - Average rainfall in April:
1.46" - Average rainfall in May:
2.52" - Average rainfall in June:
3.19"
- Average rainfall in July:
2.91" - Average rainfall in August:
1.81" - Average rainfall in September:
1.57" - Average rainfall in October:
1.73" - Average rainfall in November:
0.63" - Average rainfall in December:
0.75"
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
Hayti, SD
- Average rainfall days in January:
2.9 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
12.4 days - Average rainfall days in September:
10.4 days - Average rainfall days in October:
8.3 days - Average rainfall days in November:
4.9 days - Average rainfall days in December:
3.5 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
Hayti, SD
- Average snowfall in January:
3.74" - Average snowfall in February:
3.35" - Average snowfall in March:
2.2" - Average snowfall in April:
1.46" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
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
Hayti, SD
- Average snowfall days in January:
14.4 days - Average snowfall days in February:
11.8 days - Average snowfall days in March:
10 days - Average snowfall days in April:
4.8 days - Average snowfall days in May:
0.8 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
2.3 days - Average snowfall days in November:
7.1 days - Average snowfall days in December:
13 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 / Average sunshine
Hayti, SD
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 3min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h 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 January:
3h and 4min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 0min
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
Hayti, SD
- Average sunshine days in January:
15.1 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
11.9 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
15.7 days - Average sunshine days in September:
18.2 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19 days - Average sunshine days in December:
16.3 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
Hayti, SD
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
Hayti, SD
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
Hayti, SD
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).
Hayti, South Dakota, USA
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