October weather forecastCuster, MT
October
Weather in October
October, like September, is another refreshing autumn month in Custer, Montana, with temperature in the range of an average high of 57.2°F (14°C) and an average low of 41.4°F (5.2°C).Temperature
As Custer transitions into October, a noticeable drop in the average high-temperature is observed, falling from a warm 74.7°F (23.7°C) in September to a mild 57.2°F (14°C). Throughout October, Custer encounters an average temperature drop to an icy 41.4°F (5.2°C).Humidity
The average relative humidity in October 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
January through May, September through December are months with snowfall. In Custer, in October, during 1.9 snowfall days, 0.55" (14mm) of snow is typically accumulated. In Custer, during the entire year, snow falls for 48.3 days and aggregates up to 17.68" (449mm) of snow.Daylight
In October, the average length of the day in Custer 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
The average sunshine in October is 6.4h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 54min
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 24min
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).
