Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
A distinct shift in the average high-temperature is signaled in October, moving down from a warm 74.8°F (23.8°C) in September to a refreshing 60.1°F (15.6°C). During October nights, Marengo records an average temperature of 44.4°F (6.9°C).Humidity
The least humid month in Marengo is October, with an average relative humidity of 72%.Rainfall
In Marengo, in October, during 11.2 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Marengo, there are 141.8 rainfall days, and 29.61" (752mm) of precipitation is accumulated.Snowfall
January through May, 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 0.59" (15mm) of snow. In Marengo, Iowa, during the entire year, snow falls for 36.9 days and aggregates up to 15.91" (404mm) of snow.Daylight
The average length of the day in October in Marengo is 11h and 4min.On the first day of October in Marengo, sunrise is at 7:05 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 6:03 pm CDT.
Sunshine
In October, the average sunshine is 5.4h.UV index
In Marengo, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 during October leads to these advisories:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Marengo in October?
What is the least humid month in Marengo?
What is the average humidity in October in Marengo?
How many days does it rain in October in Marengo?
When does it start to snow in Marengo?
How many hours of daylight does Marengo have in October?
When is the sunrise / sunset in October in Marengo?
How many hours of sunshine does Marengo have in October?
How high is the UV index in October in Marengo?
Average temperature in October
Marengo, IA
- Average high temperature in October: 60.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in October: 44.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in October
Marengo, IA
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in October
Marengo, IA
- Average wind speed in October: 9.7mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in October
Marengo, IA
- Average humidity in October: 72%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Marengo, IA
- Average rainfall in October: 2.24"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in October
Marengo, IA
- Average rainfall days in October: 11.2 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in October
Marengo, IA
- Average snowfall in October: 0.59"
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Marengo, IA
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Marengo, IA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in October: 5h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in October
Marengo, IA
- Average sunshine days in October: 18 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in October
Marengo, 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
Marengo, IA
- Average cloud cover in October: 38
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in October
Marengo, 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).
Marengo, Iowa, USA
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