October weather forecast
Merrill, IA

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Weather in October

October, like September, is another mild autumn month in Merrill, Iowa, with an average temperature ranging between min 42.8°F (6°C) and max 58.8°F (14.9°C).

Temperature

Merrill's October weather is characterized by a distinct downswing in high-temperatures, falling from September's warm 75°F (23.9°C) to a refreshing 58.8°F (14.9°C). An average nighttime temperature of 42.8°F (6°C) is noted during the month of October.

Humidity

October is the least humid month in Merrill, with an average relative humidity of 66%.

Rainfall

In Merrill, during October, the rain falls for 9 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Merrill, Iowa, there are 112 rainfall days, and 15.71" (399mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Merrill. October is the first month it typically snows in Merrill. Throughout October, in the average 0.8 snowfall days, it receives 0.24" (6mm) of snow. In Merrill, Iowa, during the entire year, snow falls for 34.7 days and aggregates up to 7.52" (191mm) of snow.

Daylight

In October, the average length of the day is 11h and 2min.
On the first day of the month, sunrise is at 7:23 am and sunset at 7:05 pm. On the last day of October, in Merrill, sunrise is at 7:58 am and sunset at 6:18 pm CDT.

Sunshine

In Merrill, Iowa, the average sunshine in October is 6.1h.

UV index

In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 3 in October converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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Frequently asked questions

What is the temperature in October in Merrill?

The average high-temperature, in October, in Merrill, is 58.8°F (14.9°C), while the average low-temperature is 42.8°F (6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

What is the least humid month in Merrill?

The least humid month in Merrill, Iowa, is October, with an average relative humidity of 66%.

What is the average humidity in October in Merrill?

In October, the average relative humidity is 66%.

How much does it rain in Merrill in October?

In Merrill, Iowa, in October, during 9 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When does it start snowing in Merrill?

October is the first month it typically snows in Merrill, Iowa. Throughout October, in the average 0.8 snowfall days, it receives 0.24" (6mm) of snow.

How many hours of daylight does Merrill have in October?

In Merrill, Iowa, the average day length in October is 11h and 2min.

When are sunrise and sunset in October in Merrill?

On the first day of October, sunrise is at 7:23 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 6:18 pm CDT.

How long on average sun shines in October in Merrill?

In Merrill, the average sunshine duration in October is 6.1h.

What is the UV index intensity in October in Merrill?

The average daily maximum UV index in October in Merrill, Iowa, is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Merrill, IA

Average temperature in October - Merrill, IA
  • Average high temperature in October: 58.8°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in October: 42.8°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

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Average pressure in October
Merrill, IA

Average pressure in October - Merrill, IA
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in October
Merrill, IA

Average wind speed in October - Merrill, IA
  • Average wind speed in October: 10.2mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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Average humidity in October
Merrill, IA

Average humidity in October - Merrill, IA
  • Average humidity in October: 66%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in October
Merrill, IA

Average rainfall in October - Merrill, IA
  • Average rainfall in October: 1.46"

The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in October
Merrill, IA

Average rainfall days in October - Merrill, IA
  • Average rainfall days in October: 9 days

The month with the highest number of rainy days is June (16.5 days).
The months with the least rainy days are February and December (2.6 days).

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Average snowfall in October
Merrill, IA

Average snowfall in October - Merrill, IA
  • Average snowfall in October: 0.24"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Merrill, IA

Average snowfall days in October - Merrill, IA
  • Average snowfall days in October: 0.8 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Merrill, IA

Average daylight in October / Average sunshine in October - Merrill, IA
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in October: 6h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in October
Merrill, IA

Average sunshine days in October - Merrill, IA
  • Average sunshine days in October: 19.5 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.9 days).

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Average UV index in October
Merrill, IA

Average UV index in October - Merrill, IA
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in October
Merrill, IA

Average cloud cover in October - Merrill, IA
  • Average cloud cover in October: 34

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in October
Merrill, IA

Average visibility in October - Merrill, IA
  • Average visibility in October: 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).

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Merrill, Iowa, USA

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