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
As September transitions into October, a clear downswing in temperatures is observed, with average highs retreating from a comfortable 67.1°F (19.5°C) to a chilly 49.8°F (9.9°C). Greenough reports an average low-temperature of 29.5°F (-1.4°C) during the nights of October.Humidity
In October, the average relative humidity is 71%.Rainfall
In Greenough, in October, during 3.5 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, there are 46.4 rainfall days, and 2.4" (61mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Greenough, in October, snow falls for 2.4 days, with typically accumulated 0.51" (13mm) of snow. Throughout the year, there are 31.4 snowfall days, and 7.64" (194mm) of snow is accumulated.Daylight
In Greenough, the average length of the day in October is 10h and 52min.On the first day of the month, sunrise is at 7:33 am and sunset at 7:12 pm. On the last day of October, in Greenough, sunrise is at 8:15 am and sunset at 6:18 pm MDT.
Sunshine
In October, the average sunshine in Greenough is 7.2h.UV index
In October, the average daily maximum UV index in Greenough, Montana, is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 2 in October leads to these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the average October temperature in Greenough?
What is the average humidity in October in Greenough?
How many days does it rain in October in Greenough?
How many days does it snow in October in Greenough?
How many hours of daylight does Greenough have in October?
What time are sunrise and sunset in October in Greenough?
How many hours of sunshine does Greenough have in October?
How high is the UV index in October in Greenough?
Average temperature in October
Greenough, MT
- Average high temperature in October: 49.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.1°F).
- Average low temperature in October: 29.5°F
The months with the highest average low temperature are July and August (45.5°F).
The coldest month (with the lowest average low temperature) is December (12.2°F).
Average pressure in October
Greenough, MT
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Greenough, MT
- Average wind speed in October: 5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in October
Greenough, MT
- Average humidity in October: 71%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in October
Greenough, MT
- Average rainfall in October: 0.12"
The wettest month (with the highest rainfall) is June (0.43").
The driest month (with the least rainfall) is December (0.08").
Average rainfall days in October
Greenough, MT
- Average rainfall days in October: 3.5 days
The month with the highest number of rainy days is April (6.8 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in October
Greenough, MT
- Average snowfall in October: 0.51"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are July and August (0").
Average snowfall days in October
Greenough, MT
- Average snowfall days in October: 2.4 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in October /
Average sunshine in October
Greenough, MT
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in October: 7h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in October
Greenough, MT
- Average sunshine days in October: 25.5 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is April (21.9 days).
Average UV index in October
Greenough, MT
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Greenough, MT
- Average cloud cover in October: 31
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in October
Greenough, MT
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Greenough, Montana, USA
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