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
A notable decrease in the average high-temperature is observed during October, falling from a pleasant 70.5°F (21.4°C) in September to a cool 54.3°F (12.4°C). During October, the average low-temperature is a wintry 38.8°F (3.8°C).Humidity
The average relative humidity in October is 59%.Rainfall
In Saint Johns, in October, during 7.7 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Saint Johns, during the entire year, the rain falls for 98.7 days and collects up to 8.23" (209mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In October, it is snowing for 1.9 days. Throughout October, 0.79" (20mm) of snow is accumulated. Throughout the year, there are 53.5 snowfall days, and 14.25" (362mm) of snow is accumulated.Daylight
In October, the average length of the day in Saint Johns is 10h and 47min.On the first day of October in Saint Johns, sunrise is at 7:20 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 6:00 pm MDT.
Sunshine
The average sunshine in October in Saint Johns is 6.6h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Saint Johns. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In October, the maximum UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What is the average October temperature in Saint Johns?
What is the average humidity in October in Saint Johns?
How much does it rain in Saint Johns in October?
How many days does it snow in October in Saint Johns?
How many hours of daylight does Saint Johns have in October?
When are sunrise and sunset in October in Saint Johns?
How many hours of sunshine does Saint Johns have in October?
When is the lowest UV index in Saint Johns?
What is the UV index intensity in October in Saint Johns?
Average temperature in October
Saint Johns, MT
- Average high temperature in October: 54.3°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The months with the lowest average high temperature are January and December (27.1°F).
- Average low temperature in October: 38.8°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure in October
Saint Johns, MT
- Average pressure in October: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in October
Saint Johns, MT
- Average wind speed in October: 10.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in October
Saint Johns, MT
- Average humidity in October: 59%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (40%).
Average rainfall in October
Saint Johns, MT
- Average rainfall in October: 0.59"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days in October
Saint Johns, MT
- Average rainfall days in October: 7.7 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in October
Saint Johns, MT
- Average snowfall in October: 0.79"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Saint Johns, MT
- Average snowfall days in October: 1.9 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Saint Johns, MT
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in October: 6h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in October
Saint Johns, MT
- Average sunshine days in October: 19.7 days
The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in October
Saint Johns, 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, October, November and December (UV index 2).
Average cloud cover in October
Saint Johns, MT
- Average cloud cover in October: 29
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in October
Saint Johns, 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).
Saint Johns, Montana, USA
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