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 brings a noticeable decrease in the average high-temperature, dropping from a moderately hot 74.8°F (23.8°C) to a mild 59.9°F (15.5°C). Throughout the nights in October, Grand Junction experiences an average low-temperature of 43.9°F (6.6°C).Humidity
The least humid month is October, with an average relative humidity of 69%.Rainfall
In Grand Junction, Iowa, in October, during 9.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Grand Junction, during the entire year, the rain falls for 125.7 days and collects up to 26.5" (673mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.6 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 38.1 snowfall days, and 15.31" (389mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 4min.On the first day of the month, sunrise is at 7:14 am and sunset at 6:57 pm. On the last day of October, in Grand Junction, sunrise is at 7:49 am and sunset at 6:11 pm CDT.
Sunshine
In Grand Junction, the average sunshine in October is 5.7h.UV index
The months with the lowest UV index in Grand Junction, Iowa, are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in Grand Junction?
What is the least humid month in Grand Junction?
What is the average humidity in October in Grand Junction?
How many days does it rain in October in Grand Junction?
When does it start to snow in Grand Junction?
How many hours of daylight does Grand Junction have in October?
What time are sunrise and sunset in October in Grand Junction?
How long on average sun shines in October in Grand Junction?
What are the months with the lowest UV index in Grand Junction?
How high is the UV index in October in Grand Junction?
Average temperature in October
Grand Junction, IA
- Average high temperature in October: 59.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in October: 43.9°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in October
Grand Junction, IA
- Average pressure in October: 30"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
Grand Junction, IA
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in October
Grand Junction, IA
- Average humidity in October: 69%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).
Average rainfall in October
Grand Junction, IA
- Average rainfall in October: 2.2"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in October
Grand Junction, IA
- Average rainfall days in October: 9.5 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in October
Grand Junction, IA
- Average snowfall in October: 0.12"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Grand Junction, IA
- Average snowfall days in October: 0.6 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Grand Junction, IA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- 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
Grand Junction, IA
- Average sunshine days in October: 19.2 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in October
Grand Junction, IA
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in October
Grand Junction, IA
- Average cloud cover in October: 36
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in October
Grand Junction, IA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Grand Junction, Iowa, USA
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