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
The shift from September to October is characterized by a clear decrease in the average high-temperature, reducing from a moderately hot 74.8°F (23.8°C) to a mild 60.3°F (15.7°C). Throughout the month of October, the nighttime temperature in Greenfield dips to an average of 43.7°F (6.5°C).Humidity
The least humid month in Greenfield is October, with an average relative humidity of 70%.Rainfall
In Greenfield, in October, it is raining for 10.4 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Greenfield, there are 138.2 rainfall days, and 28.23" (717mm) 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 1 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 35.5 snowfall days, and 15.71" (399mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 5min.On the first day of October in Greenfield, sunrise is at 7:15 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 6:13 pm CDT.
Sunshine
The average sunshine in October in Greenfield is 5.7h.UV index
The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, a daily maximum UV index of 2 leads to the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Greenfield?
What is the least humid month in Greenfield?
What is the average humidity in October in Greenfield?
How many days does it rain in October in Greenfield?
When does it start snowing in Greenfield?
How many hours of daylight does Greenfield have in October?
What time are sunrise and sunset in October in Greenfield?
How many hours of sunshine does Greenfield have in October?
How high is the UV index in October in Greenfield?
Average temperature in October
Greenfield, IA
- Average high temperature in October: 60.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in October: 43.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in October
Greenfield, 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
Greenfield, IA
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in October
Greenfield, IA
- Average humidity in October: 70%
The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Greenfield, IA
- Average rainfall in October: 2.24"
The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in October
Greenfield, IA
- Average rainfall days in October: 10.4 days
The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (4 days).
Average snowfall in October
Greenfield, IA
- Average snowfall in October: 0.35"
The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Greenfield, IA
- Average snowfall days in October: 1 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Greenfield, IA
- Average daylight in October: 11h and 1min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in October
Greenfield, IA
- Average sunshine days in October: 18.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in October
Greenfield, 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
Greenfield, IA
- Average cloud cover in October: 35
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in October
Greenfield, IA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Greenfield, Iowa, USA
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