October weather forecast
Hammer, SD

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Weather in October

October, the same as September, is a cool autumn month in Hammer, South Dakota, with an average temperature varying between 40.1°F (4.5°C) and 54.9°F (12.7°C).

Temperature

Hammer sees a considerable decrease in average high-temperatures during October, falling from a pleasant 72°F (22.2°C) in September to a fresh 54.9°F (12.7°C). During October nights, Hammer witnesses a consistent average temperature of 40.1°F (4.5°C).

Humidity

The average relative humidity in October is 67%.

Rainfall

In October, the rain falls for 8.9 days. Throughout October, 2.13" (54mm) of precipitation is accumulated. In Hammer, during the entire year, the rain falls for 107.9 days and collects up to 20.63" (524mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows in Hammer. Throughout October, in the average 1.4 snowfall days, it receives 0.35" (9mm) of snow. In Hammer, during the entire year, snow falls for 53.2 days and aggregates up to 20.12" (511mm) of snow.

Daylight

In Hammer, the average length of the day in October is 10h and 55min.
On the first day of the month, sunrise is at 7:27 am and sunset at 7:07 pm. On the last day of October, sunrise is at 8:07 am and sunset at 6:15 pm CDT.

Sunshine

In Hammer, the average sunshine in October is 5.9h.

UV index

The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 during October leads to these advisories:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

What are October temperatures in Hammer?

October temperatures vary between a high-temperature of 54.9°F (12.7°C) and a low-temperature of 40.1°F (4.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the average humidity in October?

The average relative humidity in October is 67%.

How much does it rain in October?

In Hammer, in October, during 8.9 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 1.4 snowfall days, it receives 0.35" (9mm) of snow.

How many hours of daylight does Hammer have in October?

The average day length in October is 10h and 55min.

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:27 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 6:15 pm CDT.

How long on average sun shines in October?

In October, the average sunshine duration is 5.9h.

What is the UV index reading in October?

In October, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Hammer, SD

Average temperature in October - Hammer, SD
  • Average high temperature in October: 54.9°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 (19°F).

  • Average low temperature in October: 40.1°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

Average pressure in October
Hammer, SD

Average pressure in October - Hammer, SD
  • Average pressure in October: 29.97"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in October
Hammer, SD

Average wind speed in October - Hammer, SD
  • Average wind speed in October: 10.9mph

The windiest months (with the highest average wind speed) are April and October (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).

Average humidity in October
Hammer, SD

Average humidity in October - Hammer, SD
  • Average humidity in October: 67%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).

Average rainfall in October
Hammer, SD

Average rainfall in October - Hammer, SD
  • Average rainfall in October: 2.13"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in October
Hammer, SD

Average rainfall days in October - Hammer, SD
  • Average rainfall days in October: 8.9 days

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (1.6 days).

Average snowfall in October
Hammer, SD

Average snowfall in October - Hammer, SD
  • Average snowfall in October: 0.35"

The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Hammer, SD

Average snowfall days in October - Hammer, SD
  • Average snowfall days in October: 1.4 days

The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Hammer, SD

Average daylight in October / Average sunshine in October - Hammer, SD
  • Average daylight in October: 10h and 5min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in October: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in October
Hammer, SD

Average sunshine days in October - Hammer, SD
  • Average sunshine days in October: 19.1 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in October
Hammer, SD

Average UV index in October - Hammer, SD
  • Average UV index in October: 2

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in October
Hammer, SD

Average cloud cover in October - Hammer, SD
  • Average cloud cover in October: 38

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 25).

Average visibility in October
Hammer, SD

Average visibility in October - Hammer, SD
  • Average visibility in October: 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).

Hammer, South Dakota, USA

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