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
Witnessing a clear drop in October, the average high-temperature declines from September's agreeable 70.7°F (21.5°C) to a refreshing 56.3°F (13.5°C). During October, an average low-temperature of 41.2°F (5.1°C) is observed.Humidity
With an average relative humidity of 76%, October is the least humid month.Rainfall
In Calmar, Iowa, in October, during 11.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Calmar, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 1.8 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 60.9 snowfall days, and 24.37" (619mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 1min.On the first day of October, sunrise is at 7:05 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 6:00 pm CDT.
Sunshine
In Calmar, the average sunshine in October is 5.2h.UV index
In October, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in October converts into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Calmar in October?
What is the least humid month?
What is the average humidity in October in Calmar?
How many days does it rain in October?
When does it start snowing?
What is the average length of the day in October?
When are sunrise and sunset in October?
How many hours of sunshine does Calmar have in October?
How high is the UV index in October?
Average temperature in October
Calmar, IA
- Average high temperature in October: 56.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in October: 41.2°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in October
Calmar, IA
- Average pressure in October: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in October
Calmar, IA
- Average wind speed in October: 9.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in October
Calmar, IA
- Average humidity in October: 76%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).
Average rainfall in October
Calmar, IA
- Average rainfall in October: 2.6"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in October
Calmar, IA
- Average rainfall days in October: 11.7 days
The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in October
Calmar, IA
- Average snowfall in October: 0.43"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Calmar, IA
- Average snowfall days in October: 1.8 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Calmar, 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 0min).
- Average sunshine in October: 5h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in October
Calmar, IA
- Average sunshine days in October: 15.6 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).
Average UV index in October
Calmar, IA
- Average UV index in October: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in October
Calmar, IA
- Average cloud cover in October: 41
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Calmar, IA
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Calmar, Iowa, USA
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