September weather forecast
Santa Rita, MT

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Weather in September

The first month of the autumn, September, is still a comfortable month in Santa Rita, Montana, with an average temperature varying between 48.4°F (9.1°C) and 67.6°F (19.8°C).

Temperature

The arrival of September indicates a decrease in the average high-temperature, moving from a moderately hot 78.1°F (25.6°C) in August to a comfortable 67.6°F (19.8°C). During September, the average low-temperature is recorded at a chilly 48.4°F (9.1°C).

Humidity

The average relative humidity in September is 49%.

Rainfall

In Santa Rita, in September, it is raining for 6.2 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, there are 70.4 rainfall days, and 8.46" (215mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 54.3 snowfall days, and 19.49" (495mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 34min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:10 pm. On the last day of September, in Santa Rita, sunrise is at 7:28 am and sunset at 7:09 pm MDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

In Santa Rita, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the UV index of 4 transforms into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature, in September, in Santa Rita, is 67.6°F (19.8°C), while the average low-temperature is 48.4°F (9.1°C).

What is the average humidity in September?

The average relative humidity in September is 49%.

How much does it rain in September?

In Santa Rita, during September, the rain falls for 6.2 days and regularly aggregates up to 0.71" (18mm) of precipitation.

When does it start to snow?

September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 0.51" (13mm) of snow.

How many hours of daylight does Santa Rita have in September?

The average day length in September is 12h and 34min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:47 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:09 pm MDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.6h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Santa Rita, MT

Average temperature in September - Santa Rita, MT
  • Average high temperature in September: 67.6°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (27.1°F).

  • Average low temperature in September: 48.4°F

The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (15.3°F).

Average pressure in September
Santa Rita, MT

Average pressure in September - Santa Rita, MT
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in September
Santa Rita, MT

Average wind speed in September - Santa Rita, MT
  • Average wind speed in September: 9.5mph

The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).

Average humidity in September
Santa Rita, MT

Average humidity in September - Santa Rita, MT
  • Average humidity in September: 49%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (43%).

Average rainfall in September
Santa Rita, MT

Average rainfall in September - Santa Rita, MT
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in September
Santa Rita, MT

Average rainfall days in September - Santa Rita, MT
  • Average rainfall days in September: 6.2 days

The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is November (2.6 days).

Average snowfall in September
Santa Rita, MT

Average snowfall in September - Santa Rita, MT
  • Average snowfall in September: 0.51"

The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July and August (0").

Average snowfall days in September
Santa Rita, MT

Average snowfall days in September - Santa Rita, MT
  • Average snowfall days in September: 0.8 days

The month with the highest number of snowfall days is December (10.2 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in September /
Average sunshine in September
Santa Rita, MT

Average daylight in September / Average sunshine in September - Santa Rita, MT
  • 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 July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

Average sunshine days in September
Santa Rita, MT

Average sunshine days in September - Santa Rita, MT
  • Average sunshine days in September: 22.4 days

The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is April (17.4 days).

Average UV index in September
Santa Rita, MT

Average UV index in September - Santa Rita, MT
  • 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, March, October, November and December (UV index 2).

Average cloud cover in September
Santa Rita, MT

Average cloud cover in September - Santa Rita, MT
  • Average cloud cover in September: 23

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in September
Santa Rita, MT

Average visibility in September - Santa Rita, MT
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Santa Rita, Montana, USA

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