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
Saint Joseph records a mild change in average high-temperature during September, easing from a moderately hot 78.6°F (25.9°C) in August to a pleasant 70.9°F (21.6°C). Saint Joseph's temperature lowers to a mean of 50.9°F (10.5°C) during the nights in September.Humidity
In Saint Joseph, the average relative humidity in September is 74%.Rainfall
In Saint Joseph, in September, it is raining for 9.3 days, with typically 1.26" (32mm) of accumulated precipitation. In Saint Joseph, during the entire year, the rain falls for 109.6 days and collects up to 17.52" (445mm) of precipitation.Snowfall
In Saint Joseph, snow does not fall in June through September.Daylight
In Saint Joseph, Minnesota, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:39 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In Saint Joseph, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 in September translates into these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Saint Joseph in September?
What is the average humidity in September in Saint Joseph?
How much does it rain in Saint Joseph in September?
When it does not snow in Saint Joseph?
Does it snow in Saint Joseph in September?
How many hours of daylight does Saint Joseph have in September?
When is the sunrise / sunset in September in Saint Joseph?
How many hours of sunshine does Saint Joseph have in September?
What is the UV index intensity in September in Saint Joseph?
Average temperature in September
Saint Joseph, MN
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in September
Saint Joseph, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Saint Joseph, MN
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Saint Joseph, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (70%).
Average rainfall in September
Saint Joseph, MN
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Saint Joseph, MN
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in September
Saint Joseph, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Joseph, MN
- Average snowfall days in September: 0 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, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Joseph, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Saint Joseph, MN
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Saint Joseph, MN
- 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
Saint Joseph, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Saint Joseph, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Saint Joseph, Minnesota, USA
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