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
With the onset of October, Castle Grove's average high-temperature witnesses a clear drop, receding from September's agreeable 73°F (22.8°C) to a refreshing 58.6°F (14.8°C). During the nights in October, Castle Grove experiences a consistent average temperature of 43.2°F (6.2°C).Humidity
With an average relative humidity of 74%, October is the least humid month.Rainfall
In Castle Grove, in October, it is raining for 11.9 days, with typically 2.52" (64mm) of accumulated precipitation. In Castle Grove, during the entire year, the rain falls for 142.5 days and collects up to 28.27" (718mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in Castle Grove. Throughout October, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 43.2 snowfall days, and 17.17" (436mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 3min.On the first day of the month, sunrise is at 7:03 am and sunset at 6:46 pm. On the last day of October, sunrise is at 7:38 am and sunset at 5:59 pm CDT.
Sunshine
The average sunshine in October is 5.3h.UV index
In Castle Grove, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 during October translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures?
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?
How many hours of daylight does Castle Grove have in October?
When is the sunrise / sunset in October?
How long on average sun shines in October?
How high is the UV index in October?
Average temperature in October
Castle Grove, IA
- Average high temperature in October: 58.6°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in October: 43.2°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in October
Castle Grove, IA
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Castle Grove, IA
- Average wind speed in October: 9.5mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in October
Castle Grove, IA
- Average humidity in October: 74%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in October
Castle Grove, IA
- Average rainfall in October: 2.52"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in October
Castle Grove, IA
- Average rainfall days in October: 11.9 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in October
Castle Grove, IA
- Average snowfall in October: 0.35"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Castle Grove, IA
- Average snowfall days in October: 0.6 days
The month with the highest number of snowfall days is January (12.1 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
Castle Grove, 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 months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in October
Castle Grove, IA
- Average sunshine days in October: 16.9 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in October
Castle Grove, IA
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Castle Grove, IA
- Average cloud cover in October: 39
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in October
Castle Grove, IA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Castle Grove, Iowa, USA
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