October weather forecastGreycliff, MT
October
Weather in October
October, the same as September, is a cool autumn month in Greycliff, Montana, with an average temperature varying between 34.3°F (1.3°C) and 51.1°F (10.6°C).Temperature
October signals a clear decrease in the average high-temperature, dropping from September's comfortable 66.7°F (19.3°C) to a fresh 51.1°F (10.6°C). Greycliff's average low-temperature during October nights is observed to be a cold 34.3°F (1.3°C).Humidity
In October, the average relative humidity is 63%.Rainfall
In Greycliff, in October, it is raining for 10.6 days, with typically 0.94" (24mm) of accumulated precipitation. In Greycliff, during the entire year, the rain falls for 129.6 days and collects up to 15.83" (402mm) of precipitation.Snowfall
Months with snowfall in Greycliff are January through May, September through December. In Greycliff, during October, snow falls for 4.9 days and regularly aggregates up to 2.99" (76mm) of snow. In Greycliff, during the entire year, snow falls for 67.6 days and aggregates up to 38.19" (970mm) of snow.Daylight
In October, the average length of the day in Greycliff, Montana, is 10h and 55min.On the first day of the month, sunrise is at 7:18 am and sunset at 6:58 pm. On the last day of October, in Greycliff, sunrise is at 7:58 am and sunset at 6:06 pm MDT.
Sunshine
The average sunshine in October in Greycliff, Montana, is 6.7h.UV index
The months with the lowest UV index in Greycliff are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in October suggests the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Greycliff, MT
- Average high temperature in October: 51.1°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in October: 34.3°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).
Average pressure in October
Greycliff, MT
- Average pressure in October: 30.02"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in October
Greycliff, MT
- Average wind speed in October: 9.1mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in October
Greycliff, MT
- Average humidity in October: 63%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (47%).
Average rainfall in October
Greycliff, MT
- Average rainfall in October: 0.94"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in October
Greycliff, MT
- Average rainfall days in October: 10.6 days
The month with the highest number of rainy days is May (19.8 days).
The months with the least rainy days are January and December (5.3 days).
Average snowfall in October
Greycliff, MT
- Average snowfall in October: 2.99"
The month with the highest snowfall is March (7.09").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Greycliff, MT
- Average snowfall days in October: 4.9 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Greycliff, 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 42min).
- Average sunshine in October: 6h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 12min).
Average sunshine days in October
Greycliff, MT
- Average sunshine days in October: 16.9 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (7.7 days).
Average UV index in October
Greycliff, MT
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in October
Greycliff, MT
- Average cloud cover in October: 28
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in October
Greycliff, MT
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
