September weather forecastBig Creek, ID
September
Weather in September
September, the first month of the autumn in Big Creek, is still a refreshing month, with an average temperature ranging between min 39.7°F (4.3°C) and max 65.7°F (18.7°C).Temperature
September indicates a shift in the average high-temperature, from August's moderately hot 75.7°F (24.3°C) to a refreshing 65.7°F (18.7°C). Big Creek observes a dramatic plunge from daytime highs in September, settling at an average low-temperature of 39.7°F (4.3°C).Humidity
The average relative humidity in September is 55%.Rainfall
In Big Creek, during September, the rain falls for 7.7 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Big Creek, there are 81 rainfall days, and 32.68" (830mm) of precipitation is accumulated.Snowfall
January through December are months with snowfall. In Big Creek, in September, during 2.9 snowfall days, 2.32" (59mm) of snow is typically accumulated. In Big Creek, during the entire year, snow falls for 160 days and aggregates up to 210.63" (5350mm) of snow.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 7:04 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:22 pm MDT.
Sunshine
In Big Creek, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily UV index of 3 turns into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Big Creek, ID
- Average high temperature in September: 65.7°F
The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is December (25.3°F).
- Average low temperature in September: 39.7°F
The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in September
Big Creek, ID
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Big Creek, ID
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is March (6mph).
The calmest months (with the lowest average wind speed) are May, June, August and September (5.3mph).
Average humidity in September
Big Creek, ID
- Average humidity in September: 55%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
Big Creek, ID
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is February (4.49").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in September
Big Creek, ID
- Average rainfall days in September: 7.7 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in September
Big Creek, ID
- Average snowfall in September: 2.32"
The month with the highest snowfall is February (36.1").
The month with the least snowfall is August (0.08").
Average snowfall days in September
Big Creek, ID
- Average snowfall days in September: 2.9 days
The month with the highest number of snowfall days is March (24.9 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in September /
Average sunshine in September
Big Creek, ID
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Big Creek, ID
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is July (22.3 days).
The months with the least sunshine days are February and March (6.3 days).
Average UV index in September
Big Creek, 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 January, February, March, April, November and December (UV index 1).
Average cloud cover in September
Big Creek, ID
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Big Creek, 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 and February (3mi).
