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
In Boulder, Montana, the average high-temperature in October significantly decreases from an enjoyable 67.5°F (19.7°C) in September to a fresh 50.9°F (10.5°C). The average low-temperature, in Boulder, is 31.3°F (-0.4°C).Humidity
The average relative humidity in October in Boulder, Montana, is 65%.Rainfall
In Boulder, during 11 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Boulder, there are 133.7 rainfall days, and 16.38" (416mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Boulder. In Boulder, snow falls for 6.5 days, with typically accumulated 3.94" (100mm) of snow. In Boulder, Montana, during the entire year, snow falls for 105.8 days and aggregates up to 55.12" (1400mm) of snow.Daylight
The average length of the day in October in Boulder is 10h and 53min.On the first day of October in Boulder, sunrise is at 7:27 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 6:16 pm MDT.
Sunshine
In October, the average sunshine in Boulder is 7h.UV index
In October, the average daily maximum UV index in Boulder is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in October interpret 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. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
FAQ
What is the temperature in October in Boulder?
What is the average humidity in October in Boulder?
How many days does it rain in October in Boulder?
How many days does it snow in October in Boulder?
What is the average length of the day in October in Boulder?
When are sunrise and sunset in October in Boulder?
How many hours of sunshine does Boulder have in October?
What is the UV index reading in October in Boulder?
Average temperature in October
Boulder, MT
- Average high temperature in October: 50.9°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in October: 31.3°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in October
Boulder, MT
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Boulder, MT
- Average wind speed in October: 6.2mph
The windiest months (with the highest average wind speed) are January and November (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in October
Boulder, MT
- Average humidity in October: 65%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).
Average rainfall in October
Boulder, MT
- Average rainfall in October: 1.06"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in October
Boulder, MT
- Average rainfall days in October: 11 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in October
Boulder, MT
- Average snowfall in October: 3.94"
The month with the highest snowfall is February (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days in October
Boulder, MT
- Average snowfall days in October: 6.5 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in October /
Average sunshine in October
Boulder, MT
- Average daylight in October: 10h and 53min
The month with the longest days is June (Average daylight: 15h and 43min).
The month with the shortest days is December (Average daylight: 8h and 41min).
- Average sunshine in October: 7h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in October
Boulder, MT
- Average sunshine days in October: 15 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in October
Boulder, 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
Boulder, MT
- Average cloud cover in October: 30
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in October
Boulder, 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).
Weather forecast for your location
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