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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 a freezing cold winter month in Hamill, South Dakota, with an average temperature ranging between max 28.8°F (-1.8°C) and min 15.6°F (-9.1°C). January is the coldest month of the year, registering average temperatures as high as 28.8°F (-1.8°C) and as low as 15.6°F (-9.1°C). Weather in January »
Weather in February
February, the last month of the winter in Hamill, is a wintry month, with an average temperature ranging between max 32.5°F (0.3°C) and min 18.1°F (-7.7°C). With February's advent, Hamill sees an average high-temperature of an icy 32.5°F (0.3°C), subtly shifted from January's 28.8°F (-1.8°C). Weather in February »
Weather in March
March, the first month of the spring in Hamill, is a chilly month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 46.6°F (8.1°C). As Hamill transitions into March, the average high-temperature is observed to rise from an icy 32.5°F (0.3°C) in February to a frosty 46.6°F (8.1°C). Weather in March »
Weather in April
April is a refreshing spring month in Hamill, South Dakota, with an average temperature fluctuating between 56.7°F (13.7°C) and 39.2°F (4°C). The arrival of April brings a temperature shift, with the average high-temperature escalating from a chilly 46.6°F (8.1°C) in March to a mild 56.7°F (13.7°C). Weather in April »
Weather in May
May, the last month of the spring in Hamill, is an enjoyable month, with temperature in the range of an average high of 67.8°F (19.9°C) and an average low of 49.6°F (9.8°C). The arrival of May brings a change in Hamill's weather, with average high-temperatures moving from April's moderate 56.7°F (13.7°C) to an enjoyable 67.8°F (19.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Hamill, South Dakota, with an average temperature ranging between max 80.2°F (26.8°C) and min 61°F (16.1°C). June's onset is marked by a temperature increase, moving from a comfortable 67.8°F (19.9°C) in May to a moderately hot 80.2°F (26.8°C). Weather in June »
Weather in July
July in Hamill, South Dakota, is a hot summer month, with an average temperature fluctuating between 66.7°F (19.3°C) and 88°F (31.1°C). July is the month when Hamill's temperatures reach their peak, with averages of 88°F (31.1°C) and lows of 66.7°F (19.3°C). For most parts of July, the heat index is computed to be a fiery hot 95°F (35°C). Weather in July »
Weather in August
August, the last month of the summer in Hamill, is also a moderately hot month, with an average temperature fluctuating between 85.8°F (29.9°C) and 63.9°F (17.7°C). August experiences an average high-temperature of a warm 85.8°F (29.9°C), barely different from July's 88°F (31.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Hamill, is also a moderately hot month, with an average temperature varying between 76.6°F (24.8°C) and 56.3°F (13.5°C). September's arrival coincides with a drop in the average high-temperature, decreasing from August's 85.8°F (29.9°C) to a still warm 76.6°F (24.8°C). Weather in September »
Weather in October
October, the same as September, in Hamill, South Dakota, is another refreshing autumn month, with an average temperature varying between 42.8°F (6°C) and 59.2°F (15.1°C). With the onset of October, Hamill experiences a distinct temperature drop, with the average high-temperature reducing from September's moderately hot 76.6°F (24.8°C) to a refreshing 59.2°F (15.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Hamill, is another chilly month, with an average temperature varying between 31.1°F (-0.5°C) and 46.6°F (8.1°C). Hamill's weather in November involves a decrease in the average high-temperature, moving down from October's moderate 59.2°F (15.1°C) to a frosty 46.6°F (8.1°C). Weather in November »
Weather in December
December, the first month of the winter in Hamill, is still a freezing cold month, with an average temperature fluctuating between 18.3°F (-7.6°C) and 31.1°F (-0.5°C). As Hamill welcomes December, there is a noticeable shift in the average high-temperature, dropping from November's frosty 46.6°F (8.1°C) to a subzero cold 31.1°F (-0.5°C). Weather in December »
Updated: Jul 30, 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?
Hamill's temperature records reveal January as the coldest month, marked by average highs of 28.8°F (-1.8°C) and lows of 15.6°F (-9.1°C).
What is the most humid month?
The most humid month is January, with an average relative humidity of 82%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.47" (12mm) of precipitation.
How many days does it rain?
In Hamill, during the entire year, the rain falls for 103.9 days and collects up to 16.85" (428mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow?
Throughout the year, there are 39.7 snowfall days, and 14.45" (367mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.9h of sunshine.
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?
June is the month with the most rainfall in Hamill, South Dakota. Rain falls for 15.3 days and accumulates 2.8" (71mm) of precipitation.
When it does not snow?
In Hamill, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 24min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the warmest month?
July, with its average high-temperature of 88°F (31.1°C) and an average low-temperature of 66.7°F (19.3°C), holds the record as the warmest month.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 11.4h of sunshine.
What are the least humid months in Hamill?
The months with the lowest humidity are August and September, with an average relative humidity of 57%.
When does it snow the most?
December is the month with the most snowfall. Snow falls for 8 days and accumulates 3.19" (81mm) of snow.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 0min of daylight.
When is the lowest UV index in Hamill?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Hamill, SD
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure
Hamill, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Hamill, SD
- Average wind speed in January:
11.1mph - Average wind speed in February:
10.6mph - Average wind speed in March:
11.2mph - Average wind speed in April:
11.9mph - Average wind speed in May:
11mph - Average wind speed in June:
10.3mph
- Average wind speed in July:
9.9mph - Average wind speed in August:
9.8mph - Average wind speed in September:
10.7mph - Average wind speed in October:
11.6mph - Average wind speed in November:
10.9mph - Average wind speed in December:
10.9mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).
Average humidity
Hamill, SD
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).
Average rainfall
Hamill, SD
- Average rainfall in January:
0.47" - Average rainfall in February:
0.51" - Average rainfall in March:
1.22" - Average rainfall in April:
1.77" - Average rainfall in May:
2.6" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.46" - Average rainfall in September:
1.34" - Average rainfall in October:
1.3" - Average rainfall in November:
0.51" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Hamill, SD
- Average rainfall days in January:
2.7 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
7.3 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
8 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).
Average snowfall
Hamill, SD
- Average snowfall in January:
2.64" - Average snowfall in February:
2.52" - Average snowfall in March:
2.28" - Average snowfall in April:
1.73" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Hamill, SD
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
8 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
2.8 days - Average snowfall days in May:
0.2 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 days - Average snowfall days in October:
1.6 days - Average snowfall days in November:
3.9 days - Average snowfall days in December:
8 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hamill, 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 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - 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:
9h and 0min
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 January:
4h and 5min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 1min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
11h and 2min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 0min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days
Hamill, SD
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
20 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
20.2 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).
Average UV index
Hamill, SD
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Hamill, SD
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility
Hamill, SD
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).
Hamill, South Dakota, USA
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