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 arrival of October brings a significant change in Williamson's weather, with average high-temperatures dropping from September's warm 75.7°F (24.3°C) to a refreshing 61.3°F (16.3°C). In October, in Williamson, the average low-temperature is a frosty 44.6°F (7°C).Humidity
With an average relative humidity of 72%, October is the least humid month in Williamson.Rainfall
In Williamson, Iowa, in October, it is raining for 10.5 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 131.1 rainfall days, and 25.71" (653mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Williamson, Iowa. October is the first month it typically snows. Throughout October, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 33.4 snowfall days, and 13.54" (344mm) of snow is accumulated.Daylight
In October, the average length of the day in Williamson is 11h and 5min.On the first day of October, sunrise is at 7:10 am and sunset at 6:54 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 6:09 pm CDT.
Sunshine
The average sunshine in October in Williamson is 5.6h.UV index
In Williamson, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In October, a daily UV index of 2 turns into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended. On your guard! Snow's reflection can almost 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 the temperatures in Williamson in October?
What is the least humid month in Williamson?
What is the average humidity in October in Williamson?
How much does it rain in Williamson in October?
When does it start to snow in Williamson?
How many hours of daylight does Williamson have in October?
When are sunrise and sunset in October in Williamson?
How long on average sun shines in October in Williamson?
What is the UV index reading in October in Williamson?
Average temperature in October
Williamson, IA
- Average high temperature in October: 61.3°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in October: 44.6°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in October
Williamson, 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 (29.89"Hg).
Average wind speed in October
Williamson, 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
Williamson, IA
- Average humidity in October: 72%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Williamson, IA
- Average rainfall in October: 2.05"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in October
Williamson, IA
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in October
Williamson, IA
- Average snowfall in October: 0.35"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Williamson, IA
- Average snowfall days in October: 0.6 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Williamson, 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 12min).
Average sunshine days in October
Williamson, IA
- Average sunshine days in October: 18 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in October
Williamson, 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
Williamson, IA
- Average cloud cover in October: 36
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in October
Williamson, IA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Williamson, Iowa, USA
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