October weather forecastDiagonal, IA
October
Weather in October
October, the same as September, is another refreshing autumn month in Diagonal, Iowa, with an average temperature fluctuating between 61.5°F (16.4°C) and 44.6°F (7°C).Temperature
The start of October brings a distinct shift in the average high-temperature, dropping from September's warm 75.9°F (24.4°C) to a comfortable 61.5°F (16.4°C). During the month of October, Diagonal's nighttime temperature lowers to an average of 44.6°F (7°C).Humidity
With an average relative humidity of 71%, October is the least humid month.Rainfall
In Diagonal, in October, it is raining for 9.5 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 126.9 rainfall days, and 22.6" (574mm) 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 0.8 snowfall days, it receives 0.47" (12mm) of snow. In Diagonal, during the entire year, snow falls for 28.7 days and aggregates up to 11.85" (301mm) of snow.Daylight
In Diagonal, the average length of the day in October is 11h and 6min.On the first day of the month, sunrise is at 7:14 am and sunset at 6:58 pm. On the last day of October, in Diagonal, sunrise is at 7:47 am and sunset at 6:14 pm CDT.
Sunshine
The average sunshine in October is 5.8h.UV index
In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 in October translates into these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Diagonal, IA
- Average high temperature in October: 61.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in October: 44.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in October
Diagonal, IA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in October
Diagonal, IA
- Average wind speed in October: 9.3mph
The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in October
Diagonal, IA
- Average humidity in October: 71%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Diagonal, IA
- Average rainfall in October: 1.65"
The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").
Average rainfall days in October
Diagonal, IA
- Average rainfall days in October: 9.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in October
Diagonal, IA
- Average snowfall in October: 0.47"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Diagonal, IA
- Average snowfall days in October: 0.8 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Diagonal, 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 18min).
- Average sunshine in October: 5h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in October
Diagonal, IA
- Average sunshine days in October: 19.2 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in October
Diagonal, IA
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in October
Diagonal, IA
- Average cloud cover in October: 35
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in October
Diagonal, 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).





