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
Saint Maries in September experiences a subtle temperature decline, with average high-temperatures reducing from a warm 80.2°F (26.8°C) in August to an agreeable 70.3°F (21.3°C). During September, Saint Maries reports a marked contrast from daily peak temperatures, with an average nighttime reading of 43.7°F (6.5°C).Humidity
The average relative humidity in September in Saint Maries is 59%.Rainfall
In September, the rain falls for 7.4 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Saint Maries, Idaho, during the entire year, the rain falls for 145.2 days and collects up to 25.12" (638mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Saint Maries. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Saint Maries, there are 70.2 snowfall days, and 59.69" (1516mm) of snow is accumulated.Daylight
The average length of the day in September in Saint Maries is 12h and 32min.On the first day of September in Saint Maries, Idaho, sunrise is at 6:06 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:26 pm PDT.
Sunshine
The average sunshine in September is 9.7h.UV index
In Saint Maries, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the usual temperature for Saint Maries in September?
What is the average humidity in September in Saint Maries?
How many days does it rain in September in Saint Maries?
When does it start snowing in Saint Maries?
How many hours of daylight does Saint Maries have in September?
When are sunrise and sunset in September in Saint Maries?
How long on average sun shines in September in Saint Maries?
What is the UV index reading in September in Saint Maries?
Average temperature in September
Saint Maries, ID
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (31.8°F).
- Average low temperature in September: 43.7°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure in September
Saint Maries, ID
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in September
Saint Maries, ID
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is April (5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).
Average humidity in September
Saint Maries, ID
- Average humidity in September: 59%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Saint Maries, ID
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is January (3.66").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in September
Saint Maries, ID
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is April (18.7 days).
The month with the least rainy days is July (4.9 days).
Average snowfall in September
Saint Maries, ID
- Average snowfall in September: 0.08"
The month with the highest snowfall is January (16.22").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Saint Maries, ID
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (16.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Saint Maries, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 3h and 30min).
Average sunshine days in September
Saint Maries, ID
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is July (25.2 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in September
Saint Maries, 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, November and December (UV index 1).
Average cloud cover in September
Saint Maries, ID
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Saint Maries, ID
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Saint Maries, Idaho, USA
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