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
As September gives way to October, the average high-temperature displays a considerable decrease, falling from a moderately hot 74.7°F (23.7°C) to a refreshing 57.2°F (14°C). Custer observes an average nighttime low-temperature of 41.4°F (5.2°C) during the month of October.Humidity
In October, the average relative humidity in Custer is 55%.Rainfall
In Custer, in October, during 9.1 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 107 rainfall days, and 12.17" (309mm) of precipitation is accumulated.Snowfall
Months with snowfall in Custer are January through May, September through December. In October, in Custer, Montana, it is snowing for 1.9 days. Throughout October, 0.55" (14mm) of snow is accumulated. In Custer, during the entire year, snow falls for 48.3 days and aggregates up to 17.68" (449mm) of snow.Daylight
The average length of the day in October is 10h and 54min.On the first day of October, sunrise is at 7:09 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:56 pm MDT.
Sunshine
In Custer, the average sunshine in October is 6.4h.UV index
In Custer, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In October, the average maximum UV index of 3 translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What are October temperatures in Custer?
What is the average humidity in October in Custer?
How many days does it rain in October in Custer?
How much does it snow in Custer in October?
How many hours of daylight does Custer have in October?
What time are sunrise and sunset in October in Custer?
How many hours of sunshine does Custer have in October?
What is the UV index intensity in October in Custer?
Average temperature in October
Custer, MT
- Average high temperature in October: 57.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The months with the lowest average high temperature are January and December (31.1°F).
- Average low temperature in October: 41.4°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in October
Custer, MT
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in October
Custer, MT
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).
Average humidity in October
Custer, MT
- Average humidity in October: 55%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in October
Custer, MT
- Average rainfall in October: 0.79"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is December (0.55").
Average rainfall days in October
Custer, MT
- Average rainfall days in October: 9.1 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is December (4.5 days).
Average snowfall in October
Custer, MT
- Average snowfall in October: 0.55"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Custer, MT
- Average snowfall days in October: 1.9 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Custer, MT
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in October: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in October
Custer, MT
- Average sunshine days in October: 18.2 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.5 days).
Average UV index in October
Custer, MT
- Average UV index in October: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Custer, MT
- Average cloud cover in October: 30
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in October
Custer, MT
- 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).
Custer, Montana, USA
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