September weather forecast
Moyie Springs, ID

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Weather in September

September, the first month of the autumn in Moyie Springs, is also an enjoyable month, with an average temperature fluctuating between 39.9°F (4.4°C) and 65.8°F (18.8°C).

Temperature

Onset of September witnesses a reduction in the average high-temperature, falling from a warm 76.3°F (24.6°C) in August to an enjoyable 65.8°F (18.8°C). A steep decline to a wintry 39.9°F (4.4°C) characterizes the September nights.

Humidity

In September, the average relative humidity is 64%.

Rainfall

In September, the rain falls for 9.5 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. Throughout the year, there are 157.1 rainfall days, and 21.61" (549mm) of precipitation is accumulated.

Snowfall

January through April, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 70.6 snowfall days, and 41.77" (1061mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 34min.
On the first day of September, sunrise is at 6:02 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:24 pm PDT.

Sunshine

The average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 3 during September translates into the following directions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. 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. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Moyie Springs in September?

In September, the average high-temperature and low-temperature in Moyie Springs are 65.8°F (18.8°C) and 39.9°F (4.4°C) respectively.

What is the average humidity in September?

The average relative humidity in September is 64%.

How many days does it rain in September?

In Moyie Springs, during September, the rain falls for 9.5 days and regularly aggregates up to 0.87" (22mm) of precipitation.

When does it start to snow?

September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.51" (13mm) of snow.

How many hours of daylight does Moyie Springs have in September?

In September, the average day length is 12h and 34min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:02 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:24 pm PDT.

How long on average sun shines in September?

In Moyie Springs, the average sunshine duration in September is 9.7h.

What is the UV index intensity in September in Moyie Springs?

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Moyie Springs, ID

Average temperature in September - Moyie Springs, ID
  • Average high temperature in September: 65.8°F

The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (27.3°F).

  • Average low temperature in September: 39.9°F

The month with the highest average low temperature is August (47.7°F).
The coldest months (with the lowest average low temperature) are January and December (16.3°F).

Average pressure in September
Moyie Springs, ID

Average pressure in September - Moyie Springs, ID
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Moyie Springs, ID

Average wind speed in September - Moyie Springs, ID
  • Average wind speed in September: 3.7mph

The windiest month (with the highest average wind speed) is June (4.3mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).

Average humidity in September
Moyie Springs, ID

Average humidity in September - Moyie Springs, ID
  • Average humidity in September: 64%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Moyie Springs, ID

Average rainfall in September - Moyie Springs, ID
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is August (0.43").

Average rainfall days in September
Moyie Springs, ID

Average rainfall days in September - Moyie Springs, ID
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is April (19.7 days).
The month with the least rainy days is August (6.5 days).

Average snowfall in September
Moyie Springs, ID

Average snowfall in September - Moyie Springs, ID
  • Average snowfall in September: 0.51"

The month with the highest snowfall is January (11.02").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in September
Moyie Springs, ID

Average snowfall days in September - Moyie Springs, ID
  • Average snowfall days in September: 0.3 days

The month with the highest number of snowfall days is December (17.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Moyie Springs, ID

Average daylight in September / Average sunshine in September - Moyie Springs, ID
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • 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 January (Average sunshine: 3h and 48min).

Average sunshine days in September
Moyie Springs, ID

Average sunshine days in September - Moyie Springs, ID
  • Average sunshine days in September: 18 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is March (7.7 days).

Average UV index in September
Moyie Springs, ID

Average UV index in September - Moyie 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 January, February, November and December (UV index 1).

Average cloud cover in September
Moyie Springs, ID

Average cloud cover in September - Moyie Springs, ID
  • Average cloud cover in September: 25

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in September
Moyie Springs, ID

Average visibility in September - Moyie Springs, ID
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

Moyie Springs, Idaho, USA

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