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
September's arrival comes with a decrease in the average high-temperature, moving from a warm 78.4°F (25.8°C) in August to a pleasant 68.9°F (20.5°C). September nights present a sharp contrast to daytime highs, with average temperatures of 40.8°F (4.9°C).Humidity
In September, the average relative humidity is 59%.Rainfall
In Red River Hot Springs, in September, it is raining for 9.4 days, with typically 1.14" (29mm) of accumulated precipitation. In Red River Hot Springs, Idaho, during the entire year, the rain falls for 138.5 days and collects up to 26.54" (674mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Red River Hot Springs. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 1.06" (27mm) of snow. In Red River Hot Springs, Idaho, during the entire year, snow falls for 112.5 days and aggregates up to 101.3" (2573mm) of snow.Daylight
In September, the average length of the day in Red River Hot Springs is 12h and 31min.On the first day of September, sunrise is at 6:02 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:22 pm PDT.
Sunshine
In September, the average sunshine in Red River Hot Springs, Idaho, is 9.7h.UV index
The average daily maximum UV index in September in Red River Hot Springs is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the temperature in September in Red River Hot Springs?
What is the average humidity in September in Red River Hot Springs?
How many days does it rain in September in Red River Hot Springs?
When does it start to snow in Red River Hot Springs?
How many hours of daylight does Red River Hot Springs have in September?
When is the sunrise / sunset in September in Red River Hot Springs?
How long on average sun shines in September in Red River Hot Springs?
What is the UV index intensity in September in Red River Hot Springs?
Average temperature in September
Red River Hot Springs, ID
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (29.5°F).
- Average low temperature in September: 40.8°F
The month with the highest average low temperature is August (46.4°F).
The coldest month (with the lowest average low temperature) is December (16.3°F).
Average pressure in September
Red River Hot Springs, ID
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Red River Hot Springs, ID
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest months (with the lowest average wind speed) are August and September (3.9mph).
Average humidity in September
Red River Hot Springs, ID
- Average humidity in September: 59%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (53%).
Average rainfall in September
Red River Hot Springs, ID
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is August (0.79").
Average rainfall days in September
Red River Hot Springs, ID
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in September
Red River Hot Springs, ID
- Average snowfall in September: 1.06"
The month with the highest snowfall is February (20.35").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Red River Hot Springs, ID
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is February (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Red River Hot Springs, ID
- Average daylight in September: 12h and 3min
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 September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Red River Hot Springs, ID
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is April (6 days).
Average UV index in September
Red River Hot Springs, ID
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in September
Red River Hot Springs, ID
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Red River Hot Springs, ID
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Red River Hot Springs, Idaho, USA
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