October weather forecastHarrison, MT
October
Weather in October
October, the same as September, is a cool autumn month in Harrison, Montana, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 33.4°F (0.8°C).Temperature
The shift into October is marked by a considerable temperature decrease, with the average high-temperature dropping from a pleasant 70.9°F (21.6°C) in September to a cool 53.8°F (12.1°C). Harrison throughout October, experiences an average nighttime temperature of 33.4°F (0.8°C).Humidity
In October, the average relative humidity in Harrison is 62%.Rainfall
In Harrison, Montana, during October, the rain falls for 10.5 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 134.2 rainfall days, and 11.34" (288mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Harrison, Montana, in October, during 3.6 snowfall days, 0.98" (25mm) of snow is typically accumulated. In Harrison, during the entire year, snow falls for 79.6 days and aggregates up to 30.08" (764mm) of snow.Daylight
The average length of the day in October is 10h and 55min.On the first day of the month, sunrise is at 7:26 am and sunset at 7:06 pm. On the last day of October, sunrise is at 8:06 am and sunset at 6:14 pm MDT.
Sunshine
In Harrison, the average sunshine in October is 7.3h.UV index
In Harrison, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 2 in October interprets into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Harrison, MT
- Average high temperature in October: 53.8°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (28°F).
- Average low temperature in October: 33.4°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (12.7°F).
Average pressure in October
Harrison, MT
- Average pressure in October: 30.05"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
Harrison, MT
- Average wind speed in October: 5.2mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in October
Harrison, MT
- Average humidity in October: 62%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (44%).
Average rainfall in October
Harrison, MT
- Average rainfall in October: 0.71"
The wettest month (with the highest rainfall) is June (1.57").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in October
Harrison, MT
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is April (16.5 days).
The month with the least rainy days is August (7.6 days).
Average snowfall in October
Harrison, MT
- Average snowfall in October: 0.98"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are July and August (0").
Average snowfall days in October
Harrison, MT
- Average snowfall days in October: 3.6 days
The month with the highest number of snowfall days is February (16.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in October /
Average sunshine in October
Harrison, 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 48min).
- Average sunshine in October: 7h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in October
Harrison, MT
- Average sunshine days in October: 16.3 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is April (9.3 days).
Average UV index in October
Harrison, 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 December (UV index 1).
Average cloud cover in October
Harrison, MT
- Average cloud cover in October: 27
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in October
Harrison, MT
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
