September weather forecastOld Beaver, ID
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Old Beaver, Idaho, with an average temperature ranging between max 65.8°F (18.8°C) and min 40.1°F (4.5°C).Temperature
September shows a mild decline in the average high-temperature, falling from August's moderately hot 75.7°F (24.3°C) to a comfortable 65.8°F (18.8°C). A significant temperature decrease to an average an icy 40.1°F (4.5°C) characterizes Old Beaver's nighttime temperatures during September.Humidity
In September, the average relative humidity in Old Beaver is 53%.Rainfall
In Old Beaver, in September, it is raining for 7.9 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 106.1 rainfall days, and 20.83" (529mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through July, September through December. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 1.69" (43mm) of snow. Throughout the year, in Old Beaver, there are 138.1 snowfall days, and 107.64" (2734mm) of snow is accumulated.Daylight
In September, the average length of the day in Old Beaver, Idaho, is 12h and 30min.On the first day of the month, sunrise is at 6:52 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:10 pm MDT.
Sunshine
In September, the average sunshine in Old Beaver is 9.9h.UV index
In Old Beaver, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Old Beaver, ID
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (22.3°F).
- Average low temperature in September: 40.1°F
The month with the highest average low temperature is August (46.6°F).
The coldest months (with the lowest average low temperature) are January and December (6.8°F).
Average pressure in September
Old Beaver, ID
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Old Beaver, ID
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity in September
Old Beaver, ID
- Average humidity in September: 53%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Old Beaver, ID
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is February (2.64").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in September
Old Beaver, ID
- Average rainfall days in September: 7.9 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in September
Old Beaver, ID
- Average snowfall in September: 1.69"
The month with the highest snowfall is January (19.84").
The month with the least snowfall is August (0").
Average snowfall days in September
Old Beaver, ID
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is December (23 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Old Beaver, ID
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Old Beaver, ID
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in September
Old Beaver, ID
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Old Beaver, ID
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in September
Old Beaver, ID
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (3mi).
