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 arrival of September indicates a decrease in the average high-temperature, moving from a warm 81.7°F (27.6°C) in August to an agreeable 70.9°F (21.6°C). Despite a significant disparity with daytime temperatures, an average low-temperature of 49.1°F (9.5°C) is recorded during September.Humidity
The average relative humidity in September is 39%.Rainfall
In Picabo, in September, it is raining for 6.2 days, with typically 0.43" (11mm) of accumulated precipitation. In Picabo, during the entire year, the rain falls for 74.4 days and collects up to 8.03" (204mm) of precipitation.Snowfall
Months with snowfall in Picabo are January through May, September through December. September is the first month it typically snows in Picabo. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 44.1 snowfall days, and 29.65" (753mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 7:01 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:18 pm MDT.
Sunshine
In Picabo, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index in Picabo is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
How many hours of daylight does Picabo have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Picabo have in September?
What is the UV index reading in September?
Average temperature in September
Picabo, ID
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in September: 49.1°F
The months with the highest average low temperature are July and August (55.6°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Picabo, ID
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Picabo, ID
- Average wind speed in September: 6.6mph
The windiest months (with the highest average wind speed) are April and June (7.6mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in September
Picabo, ID
- Average humidity in September: 39%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (32%).
Average rainfall in September
Picabo, ID
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is February (1.02").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Picabo, ID
- Average rainfall days in September: 6.2 days
The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Picabo, ID
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (7.87").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Picabo, ID
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Picabo, 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 0min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in September
Picabo, ID
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is October (23.5 days).
The month with the least sunshine days is May (15.6 days).
Average UV index in September
Picabo, ID
- Average UV index in September: 4
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 September
Picabo, ID
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Picabo, 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).
Picabo, Idaho, USA
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