Weather in September
Temperature
LaCrosse's average high-temperature decreases in September, falling from a hot 87.3°F (30.7°C) in August to a moderately hot 77.5°F (25.3°C). In LaCrosse, the average temperature during the nights of September marks a significant drop from the daily high, settling at a chilly 43.5°F (6.4°C).Rainfall
In September, the rain falls for 4 days. Throughout September, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 94 rainfall days, and 14.37" (365mm) of precipitation is accumulated.Snowfall
In LaCrosse, Washington, snow does not fall in May through September.Daylight
In LaCrosse, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:30 pm. On the last day of September, in LaCrosse, sunrise is at 6:50 am and sunset at 6:32 pm PDT.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
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Average temperature in September
LaCrosse, WA
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (88.8°F).
The month with the lowest average high temperature is January (37.1°F).
- Average low temperature in September: 43.5°F
The month with the highest average low temperature is July (51.7°F).
The coldest month (with the lowest average low temperature) is January (23.3°F).
Average rainfall in September
LaCrosse, WA
- Average rainfall in September: 0.7"
The wettest month (with the highest rainfall) is December (2.1").
The driest months (with the least rainfall) are July and August (0.4").
Average rainfall days in September
LaCrosse, WA
- Average rainfall days in September: 4 days
The month with the highest number of rainy days is December (13 days).
The months with the least rainy days are July and August (3 days).
Average snowfall in September
LaCrosse, WA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.6").
The months with the least snowfall are May, June, July, August and September (0").
Average daylight in September
LaCrosse, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
LaCrosse, Washington, USA
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