Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 85.3°F (29.6°C) in August to a still warm 74.3°F (23.5°C). Pocatello anticipates a considerable drop in temperature at night in September, with an average low of 51.1°F (10.6°C).Humidity
In Pocatello, the average relative humidity in September is 38%.Rainfall
In Pocatello, during September, the rain falls for 7.5 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, in Pocatello, there are 116.1 rainfall days, and 11.26" (286mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.35" (9mm) of snow. In Pocatello, during the entire year, snow falls for 70.2 days and aggregates up to 31.61" (803mm) of snow.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:55 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:12 pm MDT.
Sunshine
In September, the average sunshine is 9.9h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Pocatello in September?
What is the average humidity in September in Pocatello?
How much does it rain in Pocatello in September?
When does it start snowing in Pocatello?
What is the average length of the day in September in Pocatello?
When is the sunrise / sunset in September in Pocatello?
How many hours of sunshine does Pocatello have in September?
What is the UV index reading in September in Pocatello?
Average temperature in September
Pocatello, ID
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is August (57.4°F).
The coldest months (with the lowest average low temperature) are January and December (17.8°F).
Average pressure in September
Pocatello, ID
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Pocatello, ID
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is January (6.9mph).
Average humidity in September
Pocatello, ID
- Average humidity in September: 38%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (33%).
Average rainfall in September
Pocatello, ID
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Pocatello, ID
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is July (6.3 days).
Average snowfall in September
Pocatello, ID
- Average snowfall in September: 0.35"
The month with the highest snowfall is January (8.27").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Pocatello, ID
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (15.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Pocatello, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Pocatello, ID
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in September
Pocatello, ID
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Pocatello, ID
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in September
Pocatello, ID
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Pocatello, Idaho, USA
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