September weather forecastSweet, ID
September
Weather in September
September, the first month of the autumn in Sweet, is still a warm month, with an average temperature ranging between max 78.1°F (25.6°C) and min 53.4°F (11.9°C).Temperature
Sweet's transition into September involves a shift in temperature, receding from a tropical 89.2°F (31.8°C) in August to a moderately hot 78.1°F (25.6°C). Nightly readings in September display a noticeable downturn from daily highs, with the average low-temperature registering a fresh 53.4°F (11.9°C).Humidity
The average relative humidity in September is 38%.Rainfall
In Sweet, in September, it is raining for 5 days, with typically 0.31" (8mm) of accumulated precipitation. In Sweet, Idaho, during the entire year, the rain falls for 91.7 days and collects up to 10.28" (261mm) of precipitation.Snowfall
May through October are months without snowfall in Sweet.Daylight
The average length of the day in September is 12h and 29min.On the first day of September in Sweet, Idaho, sunrise is at 7:09 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:27 pm MDT.
Sunshine
The average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index in Sweet is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sweet, ID
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (34.9°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in September
Sweet, ID
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in September
Sweet, ID
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in September
Sweet, ID
- Average humidity in September: 38%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in September
Sweet, ID
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is March (1.54").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Sweet, ID
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in September
Sweet, ID
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Sweet, ID
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sweet, ID
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Sweet, ID
- Average sunshine days in September: 23.7 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).
Average UV index in September
Sweet, ID
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sweet, ID
- Average cloud cover in September: 14
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in September
Sweet, ID
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
