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
October's onset brings a noticeable temperature drop, falling from a moderately hot 75°F (23.9°C) in September to a mild 58.8°F (14.9°C). Throughout the month of October, the nighttime temperature dips to an average of 42.8°F (6°C).Humidity
With an average relative humidity of 66%, October is the least humid month in Merrill.Rainfall
In Merrill, Iowa, in October, it is raining for 9 days, with typically 1.46" (37mm) of accumulated precipitation. In Merrill, during the entire year, the rain falls for 112 days and collects up to 15.71" (399mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. 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. Throughout the year, there are 34.7 snowfall days, and 7.52" (191mm) of snow is accumulated.Daylight
In Merrill, the average length of the day in October 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, the average sunshine in October is 6.1h.UV index
In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 3 in October translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding the Sun during its peak radiation time around midday is a healthy practice. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in October?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
When does it start to snow?
What is the average length of the day in October?
When are sunrise and sunset in October?
How long on average sun shines in October?
What is the UV index reading in October?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Merrill, Iowa, USA
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