October weather forecastRiverdale, IA
October
Weather in October
October, the same as September, is another enjoyable autumn month in Riverdale, Iowa, with an average temperature fluctuating between 61.3°F (16.3°C) and 45°F (7.2°C).Temperature
The shift from September to October involves a decrease in the average high-temperature, dropping from a moderately hot 75.4°F (24.1°C) to an enjoyable 61.3°F (16.3°C). October is noted for a mean low-temperature of 45°F (7.2°C).Humidity
The least humid month is October, with an average relative humidity of 71%.Rainfall
In Riverdale, in October, during 8.4 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Riverdale, during the entire year, the rain falls for 99.4 days and collects up to 9.57" (243mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. In Riverdale, in October, during 0.6 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Riverdale, during the entire year, snow falls for 24.5 days and aggregates up to 4.09" (104mm) of snow.Daylight
The average length of the day in October in Riverdale, Iowa, is 11h and 5min.On the first day of October, sunrise is at 6:59 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:57 pm CDT.
Sunshine
The average sunshine in October is 5.5h.UV index
In Riverdale, 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 radiation for the ordinary person.Note: The UV index of 2 during October translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Riverdale, IA
- Average high temperature in October: 61.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in October: 45°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 (15.4°F).
Average pressure in October
Riverdale, IA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Riverdale, IA
- Average wind speed in October: 9.5mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in October
Riverdale, IA
- Average humidity in October: 71%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Riverdale, IA
- Average rainfall in October: 0.71"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in October
Riverdale, IA
- Average rainfall days in October: 8.4 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in October
Riverdale, IA
- Average snowfall in October: 0.31"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in October
Riverdale, IA
- Average snowfall days in October: 0.6 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Riverdale, IA
- Average daylight in October: 11h and 6min
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 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Riverdale, IA
- Average sunshine days in October: 21.3 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in October
Riverdale, IA
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in October
Riverdale, IA
- Average cloud cover in October: 39
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in October
Riverdale, 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).
