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
The arrival of September signals a shift in temperature, down from a moderately hot 81.3°F (27.4°C) in August to an agreeable 70.5°F (21.4°C). Throughout the September nights, Gildford Colony encounters a low-temperature of 52.5°F (11.4°C).Humidity
In September, the average relative humidity in Gildford Colony is 45%.Rainfall
In Gildford Colony, in September, during 7.6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, in Gildford Colony, there are 98.7 rainfall days, and 8.23" (209mm) of precipitation is accumulated.Snowfall
Months with snowfall in Gildford Colony 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 0.51" (13mm) of snow. In Gildford Colony, during the entire year, snow falls for 53.5 days and aggregates up to 14.25" (362mm) of snow.Daylight
The average length of the day in September is 12h and 34min.On the first day of September in Gildford Colony, sunrise is at 6:39 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:01 pm MDT.
Sunshine
The average sunshine in September in Gildford Colony, Montana, is 10.1h.UV index
In September, the average daily maximum UV index in Gildford Colony is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise prevention - Protecting skin and eyes from harm is required. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the usual temperature for Gildford Colony in September?
What is the average humidity in September in Gildford Colony?
How many days does it rain in September in Gildford Colony?
When does it start to snow in Gildford Colony?
What is the average length of the day in September in Gildford Colony?
When are sunrise and sunset in September in Gildford Colony?
How long on average sun shines in September in Gildford Colony?
What is the UV index reading in September in Gildford Colony?
Average temperature in September
Gildford Colony, MT
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The months with the lowest average high temperature are January and December (27.1°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure in September
Gildford Colony, MT
- Average pressure in September: 29.93"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Gildford Colony, MT
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Gildford Colony, MT
- Average humidity in September: 45%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Gildford Colony, MT
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days in September
Gildford Colony, MT
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Gildford Colony, MT
- Average snowfall in September: 0.51"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Gildford Colony, MT
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Gildford Colony, 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 18min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Gildford Colony, MT
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in September
Gildford Colony, 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
Gildford Colony, MT
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in September
Gildford Colony, 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).
Gildford Colony, Montana, USA
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