October weather forecastWestby, MT
October
Weather in October
October, like September, in Westby, Montana, is a cool autumn month, with an average temperature ranging between min 37.9°F (3.3°C) and max 52.7°F (11.5°C).Temperature
October's arrival sees a clear drop in the average high-temperature, decreasing from September's pleasant 70°F (21.1°C) to a cool 52.7°F (11.5°C). During the month of October, Westby anticipates a mean low-temperature of 37.9°F (3.3°C).Humidity
In October, the average relative humidity is 62%.Rainfall
In October, in Westby, the rain falls for 7.6 days. Throughout October, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 93.3 rainfall days, and 12.01" (305mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Westby. October is the first month it typically snows in Westby. Throughout October, in the average 3.2 snowfall days, it receives 1.57" (40mm) of snow. Throughout the year, there are 66.5 snowfall days, and 19.02" (483mm) of snow is accumulated.Daylight
The average length of the day in October is 10h and 47min.On the first day of October, sunrise is at 7:56 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 8:42 am and sunset at 6:36 pm CDT.
Sunshine
In October, the average sunshine in Westby is 6.1h.UV index
In Westby, Montana, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In October, a regular UV index of 2 translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Westby, MT
- Average high temperature in October: 52.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (19.8°F).
- Average low temperature in October: 37.9°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (6.3°F).
Average pressure in October
Westby, MT
- Average pressure in October: 29.96"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in October
Westby, MT
- Average wind speed in October: 10.9mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).
Average humidity in October
Westby, MT
- Average humidity in October: 62%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).
Average rainfall in October
Westby, MT
- Average rainfall in October: 0.79"
The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in October
Westby, MT
- Average rainfall days in October: 7.6 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in October
Westby, MT
- Average snowfall in October: 1.57"
The month with the highest snowfall is November (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Westby, MT
- Average snowfall days in October: 3.2 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Westby, MT
- Average daylight in October: 10h and 48min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in October: 6h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in October
Westby, MT
- Average sunshine days in October: 19.7 days
The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).
Average UV index in October
Westby, MT
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in October
Westby, MT
- Average cloud cover in October: 36
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).
Average visibility in October
Westby, MT
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
