September weather forecastLake Crystal, MN
September
Weather in September
September, the first month of the autumn in Lake Crystal, is still a pleasant month, with an average temperature varying between 72.5°F (22.5°C) and 53.4°F (11.9°C).Temperature
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a moderately hot 78.4°F (25.8°C) to a pleasant 72.5°F (22.5°C). Lake Crystal's September nights cool down to an average low-temperature of 53.4°F (11.9°C).Humidity
In September, the average relative humidity in Lake Crystal is 74%.Rainfall
In Lake Crystal, in September, it is raining for 8.8 days, with typically 1.06" (27mm) of accumulated precipitation. In Lake Crystal, during the entire year, the rain falls for 91.8 days and collects up to 10.28" (261mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day in Lake Crystal is 12h and 30min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:14 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September in Lake Crystal is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lake Crystal, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (21.2°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in September
Lake Crystal, MN
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Lake Crystal, MN
- Average wind speed in September: 8.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in September
Lake Crystal, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are May and October (69%).
Average rainfall in September
Lake Crystal, MN
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in September
Lake Crystal, MN
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in September
Lake Crystal, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Lake Crystal, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 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 Crystal, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Lake Crystal, MN
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is June (14.3 days).
Average UV index in September
Lake Crystal, MN
- Average UV index in September: 4
The months with the highest UV index are June and 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 Crystal, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Lake Crystal, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
