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
October is marked by a significant decrease, with the average high-temperature retreating from an enjoyable 66.2°F (19°C) in September to a fresh 50°F (10°C). During the October nights, an average temperature of 30.4°F (-0.9°C) is observed.Humidity
In October, the average relative humidity is 69%.Rainfall
In Darby, in October, during 14.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Darby, during the entire year, the rain falls for 163.6 days and collects up to 20.83" (529mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Darby, in October, snow falls for 3.5 days, with typically accumulated 1.54" (39mm) of snow. Throughout the year, there are 101.1 snowfall days, and 59.17" (1503mm) of snow is accumulated.Daylight
In October, the average length of the day is 10h and 54min.On the first day of October, sunrise is at 7:36 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 8:17 am and sunset at 6:23 pm MDT.
Sunshine
In October, the average sunshine is 7.3h.UV index
In October, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October?
How many days does it rain in October?
How much does it snow in October?
How many hours of daylight does Darby have in October?
When is the sunrise / sunset in October?
How long on average sun shines in October?
What is the UV index reading in October?
Average temperature in October
Darby, MT
- Average high temperature in October: 50°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (26.8°F).
- Average low temperature in October: 30.4°F
The month with the highest average low temperature is August (46.9°F).
The coldest month (with the lowest average low temperature) is December (14°F).
Average pressure in October
Darby, MT
- Average pressure in October: 30.06"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Darby, MT
- Average wind speed in October: 4.8mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in October
Darby, MT
- Average humidity in October: 69%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (50%).
Average rainfall in October
Darby, MT
- Average rainfall in October: 1.46"
The wettest months (with the highest rainfall) are February and April (2.36").
The driest month (with the least rainfall) is August (0.75").
Average rainfall days in October
Darby, MT
- Average rainfall days in October: 14.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is July (8 days).
Average snowfall in October
Darby, MT
- Average snowfall in October: 1.54"
The month with the highest snowfall is February (13.03").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Darby, MT
- Average snowfall days in October: 3.5 days
The month with the highest number of snowfall days is February (19.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Darby, 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: 7h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in October
Darby, MT
- Average sunshine days in October: 13.1 days
The month with the most sunshine days is July (18.9 days).
The month with the least sunshine days is February (5.6 days).
Average UV index in October
Darby, 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 February and December (UV index 1).
Average cloud cover in October
Darby, MT
- Average cloud cover in October: 31
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in October
Darby, MT
- Average visibility in October: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Darby, Montana, USA
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