October weather forecast
River Junction, IA

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Weather in October

October, the same as September, in River Junction, Iowa, is a moderate autumn month, with an average temperature varying between 60.4°F (15.8°C) and 45°F (7.2°C).

Temperature

October's onset brings a noticeable temperature drop, falling from a warm 75.2°F (24°C) in September to a moderate 60.4°F (15.8°C). River Junction's nighttime temperature in October falls to an average of 45°F (7.2°C).

Humidity

October is the least humid month, with an average relative humidity of 72%.

Rainfall

In River Junction, in October, during 11.5 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In River Junction, during the entire year, the rain falls for 140.4 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.71" (18mm) of snow. In River Junction, during the entire year, snow falls for 37.7 days and aggregates up to 16.42" (417mm) of snow.

Daylight

In October, the average length of the day is 11h and 5min.
On the first day of October, sunrise is at 7:03 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:01 pm CDT.

Sunshine

In October, the average sunshine is 5.5h.

UV index

In River Junction, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 2 in October translates into this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

In River Junction, in October, the average high-temperature is 60.4°F (15.8°C), and the average low-temperature is 45°F (7.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 86°F (30°C).

What is the least humid month?

With an average relative humidity of 72%, October is the least humid month.

What is the average humidity in October?

The average relative humidity in October is 72%.

How much does it rain in October?

In River Junction, in October, it is raining for 11.5 days, with typically 2.48" (63mm) of accumulated precipitation.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.71" (18mm) of snow.

How many hours of daylight does River Junction have in October?

The average day length in October is 11h and 5min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:03 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:01 pm CDT.

How long on average sun shines in October?

In River Junction, the average sunshine duration in October is 5.5h.

How high is the UV index in October?

In October, the average daily maximum UV index in River Junction is 2. A UV Index of 2, and less, symbolizes a low 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
River Junction, IA

Average temperature in October - River Junction, IA
  • Average high temperature in October: 60.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in October: 45°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in October
River Junction, IA

Average pressure in October - River Junction, IA
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in October
River Junction, IA

Average wind speed in October - River Junction, IA
  • Average wind speed in October: 9.6mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in October
River Junction, IA

Average humidity in October - River Junction, IA
  • Average humidity in October: 72%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in October
River Junction, IA

Average rainfall in October - River Junction, IA
  • Average rainfall in October: 2.48"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").

Average rainfall days in October
River Junction, IA

Average rainfall days in October - River Junction, IA
  • Average rainfall days in October: 11.5 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).

Average snowfall in October
River Junction, IA

Average snowfall in October - River Junction, IA
  • Average snowfall in October: 0.71"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
River Junction, IA

Average snowfall days in October - River Junction, IA
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
River Junction, IA

Average daylight in October / Average sunshine in October - River Junction, IA
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in October: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in October
River Junction, IA

Average sunshine days in October - River Junction, IA
  • Average sunshine days in October: 17.9 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).

Average UV index in October
River Junction, IA

Average UV index in October - River Junction, IA
  • 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 January (UV index 1).

Average cloud cover in October
River Junction, IA

Average cloud cover in October - River Junction, IA
  • Average cloud cover in October: 38

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in October
River Junction, IA

Average visibility in October - River Junction, IA
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

River Junction, Iowa, USA

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