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
A decrease in the average high-temperature is observed during September, shifting from a warm 79.9°F (26.6°C) in August to an agreeable 69.3°F (20.7°C). During September nights, Hamilton witnesses a consistent average temperature of 51.3°F (10.7°C).Humidity
In Hamilton, the average relative humidity in September is 62%.Rainfall
In Hamilton, during September, the rain falls for 9.6 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 101.7 rainfall days, and 14.96" (380mm) of precipitation is accumulated.Snowfall
Months with snowfall in Hamilton are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 73.1 snowfall days, and 18.07" (459mm) of snow is accumulated.Daylight
In September, the average length of the day in Hamilton is 12h and 34min.On the first day of September in Hamilton, sunrise is at 6:47 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:10 pm CDT.
Sunshine
In September, the average sunshine in Hamilton, North Dakota, is 8.8h.UV index
In September, the average daily maximum UV index in Hamilton is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Heed the precautions - It is counselled to guard against solar damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What are September temperatures in Hamilton?
What is the average humidity in September in Hamilton?
How much does it rain in Hamilton in September?
When does it start to snow in Hamilton?
What is the average length of the day in September in Hamilton?
What time are sunrise and sunset in September in Hamilton?
How many hours of sunshine does Hamilton have in September?
How high is the UV index in September in Hamilton?
Average temperature in September
Hamilton, ND
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is January (14.2°F).
- Average low temperature in September: 51.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (0.9°F).
Average pressure in September
Hamilton, ND
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Hamilton, ND
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in September
Hamilton, ND
- Average humidity in September: 62%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Hamilton, ND
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (2.56").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Hamilton, ND
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Hamilton, ND
- Average snowfall in September: 0.04"
The month with the highest snowfall is December (3.43").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Hamilton, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Hamilton, ND
- 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Hamilton, ND
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Hamilton, ND
- 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
Hamilton, ND
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Hamilton, ND
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Hamilton, North Dakota, USA
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