October weather forecastGallatin Gateway, MT
October
Weather in October
October in Gallatin Gateway is synonymous with the arrival of the cold with a drop in temperatures to 48.4°F (9.1°C). The city starts transforming into its winter mantle; hues of fall give way to frosted landscapes. As November approaches, residents brace themselves for an increase in snowfall and further dropping temperatures.Temperature
Witnessing a clear downswing, the average high-temperature during October drops from September's refreshing 65.3°F (18.5°C) to a frosty 48.4°F (9.1°C). Gallatin Gateway experiences an average low-temperature of 29.8°F (-1.2°C) in the month of October.Humidity
In October, the average relative humidity is 70%.Rainfall
In Gallatin Gateway, in October, during 12 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 131 rainfall days, and 23.15" (588mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In October, it is snowing for 8.8 days. Throughout October, 7.17" (182mm) of snow is accumulated. In Gallatin Gateway, during the entire year, snow falls for 122.8 days and aggregates up to 91.1" (2314mm) of snow.Daylight
In October, the average length of the day is 10h and 55min.On the first day of the month, sunrise is at 7:24 am and sunset at 7:04 pm. On the last day of October, sunrise is at 8:04 am and sunset at 6:12 pm MDT.
Sunshine
The average sunshine in October in Gallatin Gateway is 6.3h.UV index
The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In October, the UV index of 2 transforms into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Gallatin Gateway, MT
- Average high temperature in October: 48.4°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (24.8°F).
- Average low temperature in October: 29.8°F
The months with the highest average low temperature are July and August (46.9°F).
The coldest month (with the lowest average low temperature) is December (10.4°F).
Average pressure in October
Gallatin Gateway, MT
- Average pressure in October: 30.04"Hg
The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Gallatin Gateway, MT
- Average wind speed in October: 5.6mph
The windiest month (with the highest average wind speed) is January (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in October
Gallatin Gateway, MT
- Average humidity in October: 70%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (51%).
Average rainfall in October
Gallatin Gateway, MT
- Average rainfall in October: 1.85"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is August (1.3").
Average rainfall days in October
Gallatin Gateway, MT
- Average rainfall days in October: 12 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in October
Gallatin Gateway, MT
- Average snowfall in October: 7.17"
The month with the highest snowfall is February (15.51").
The months with the least snowfall are July and August (0").
Average snowfall days in October
Gallatin Gateway, MT
- Average snowfall days in October: 8.8 days
The month with the highest number of snowfall days is February (20.3 days).
The month with the least snowfall days is July (0 days).
Average daylight in October /
Average sunshine in October
Gallatin Gateway, MT
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in October: 6h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in October
Gallatin Gateway, MT
- Average sunshine days in October: 13.8 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is April (7 days).
Average UV index in October
Gallatin Gateway, MT
- Average UV index in October: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in October
Gallatin Gateway, MT
- Average cloud cover in October: 35
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in October
Gallatin Gateway, MT
- Average visibility in October: 6mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).





