September weather forecastLake Saint Croix Beach, MN
September
Weather in September
September, the first month of the autumn in Lake Saint Croix Beach, is also an agreeable month, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 70.5°F (21.4°C).Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a pleasant 70.5°F (21.4°C) from August's moderately hot 77.4°F (25.2°C). In September, the average low-temperature records at a fresh 51.8°F (11°C) during the nights.Humidity
The average relative humidity in September is 78%.Rainfall
In Lake Saint Croix Beach, in September, during 12.2 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Lake Saint Croix Beach, during the entire year, the rain falls for 130.4 days and collects up to 24.29" (617mm) of precipitation.Snowfall
In Lake Saint Croix Beach, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:34 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:52 pm CDT.
Sunshine
In Lake Saint Croix Beach, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lake Saint Croix Beach, MN
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in September
Lake Saint Croix Beach, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Lake Saint Croix Beach, MN
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Lake Saint Croix Beach, MN
- Average humidity in September: 78%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Lake Saint Croix Beach, MN
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Lake Saint Croix Beach, MN
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Lake Saint Croix Beach, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.67").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lake Saint Croix Beach, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lake Saint Croix Beach, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Lake Saint Croix Beach, MN
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in September
Lake Saint Croix Beach, 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
Lake Saint Croix Beach, MN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Lake Saint Croix Beach, 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).
