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
Hammond in September experiences a gentle temperature dip, with average high-temperatures reducing from a warm 76.3°F (24.6°C) in August to a pleasant 70°F (21.1°C). In the month of September, Hammond experiences an average low-temperature of 50.9°F (10.5°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In Hammond, in September, during 10.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 99.2 rainfall days, and 12.17" (309mm) of precipitation is accumulated.Snowfall
In Hammond, snow does not fall in June through September.Daylight
In September, the average length of the day in Hammond is 12h and 31min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:51 pm CDT.
Sunshine
In September, the average sunshine in Hammond is 8.5h.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 unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Hammond have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Hammond have in September?
How high is the UV index in September?
Average temperature in September
Hammond, WI
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.7°F).
Average pressure in September
Hammond, WI
- 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
Hammond, WI
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Hammond, WI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Hammond, WI
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in September
Hammond, WI
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is June (14.8 days).
The month with the least rainy days is February (1 days).
Average snowfall in September
Hammond, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hammond, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hammond, WI
- 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 3min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Hammond, WI
- Average sunshine days in September: 18 days
The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in September
Hammond, WI
- 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
Hammond, WI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Hammond, WI
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Hammond, Wisconsin, USA
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