September weather forecast
Malta, MT

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Weather in September

September signifies the advent of fall in Malta. The intense heat subsides, making room for milder temperatures. Radiant foliage begins to emerge, redefining the city's landscape. Despite lesser daylight hours, clear skies remain prominent. The city adjusts its pace to match with the slowing rhythm of nature amidst the cooling weather.

Temperature

Malta's transition into September involves a shift in temperature, receding from a warm 82.2°F (27.9°C) in August to an agreeable 70.9°F (21.6°C). Malta records a steady low-temperature average of 53.4°F (11.9°C) during September.

Humidity

In September, the average relative humidity is 46%.

Rainfall

In September, the rain falls for 8.7 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 103.3 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow. In Malta, during the entire year, snow falls for 59.6 days and aggregates up to 20.28" (515mm) of snow.

Daylight

The average length of the day in September is 12h and 34min.
On the first day of September, sunrise is at 6:30 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:51 pm MDT.

Sunshine

The average sunshine in September is 9.9h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 4 during September translates into the following guidance:
Guard yourself - Avoiding sunburn is suggested. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Boost your sun resistance with garments that are densely woven yet spacious. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

During September, Malta experiences an average high-temperature of 70.9°F (21.6°C) and a low-temperature of 53.4°F (11.9°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 82.4°F (28°C).

What is the average humidity in September?

The average relative humidity in September is 46%.

How many days does it rain in September?

In Malta, in September, it is raining for 8.7 days, with typically 1.1" (28mm) of accumulated precipitation.

When does it start snowing?

September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow.

How many hours of daylight does Malta have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:30 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:51 pm MDT.

How long on average sun shines in September?

In Malta, the average sunshine duration in September is 9.9h.

What is the UV index reading in September in Malta?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Malta, MT

Average temperature in September - Malta, MT
  • Average high temperature in September: 70.9°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The months with the lowest average high temperature are January and February (25.7°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).

Average pressure in September
Malta, MT

Average pressure in September - Malta, MT
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in September
Malta, MT

Average wind speed in September - Malta, MT
  • Average wind speed in September: 9.9mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).

Average humidity in September
Malta, MT

Average humidity in September - Malta, MT
  • Average humidity in September: 46%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (41%).

Average rainfall in September
Malta, MT

Average rainfall in September - Malta, MT
  • Average rainfall in September: 1.1"

The wettest months (with the highest rainfall) are May and June (1.89").
The driest months (with the least rainfall) are February and December (0.55").

Average rainfall days in September
Malta, MT

Average rainfall days in September - Malta, MT
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (4 days).

Average snowfall in September
Malta, MT

Average snowfall in September - Malta, MT
  • Average snowfall in September: 0.2"

The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July and August (0").

Average snowfall days in September
Malta, MT

Average snowfall days in September - Malta, MT
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Malta, MT

Average daylight in September / Average sunshine in September - Malta, MT
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Malta, MT

Average sunshine days in September - Malta, MT
  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is September (19.6 days).
The month with the least sunshine days is April (13.4 days).

Average UV index in September
Malta, MT

Average UV index in September - Malta, MT
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Malta, MT

Average cloud cover in September - Malta, MT
  • Average cloud cover in September: 24

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).

Average visibility in September
Malta, MT

Average visibility in September - Malta, MT
  • Average visibility in September: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Malta, Montana, USA

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