Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October's arrival sees a clear drop in the average high-temperature, decreasing from September's comfortable 66.9°F (19.4°C) to a fresh 50.5°F (10.3°C). Mercer, during October nights, observes an average temperature of 38.3°F (3.5°C).Humidity
In October, the average relative humidity in Mercer is 80%.Rainfall
In Mercer, in October, it is raining for 12.6 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, in Mercer, there are 126.3 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 5.4 snowfall days, it receives 2.05" (52mm) of snow. In Mercer, during the entire year, snow falls for 120.8 days and aggregates up to 54.92" (1395mm) of snow.Daylight
In October, the average length of the day is 10h and 54min.On the first day of October in Mercer, sunrise is at 6:59 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:46 pm CDT.
Sunshine
The average sunshine in October is 4.4h.UV index
In October, the average daily maximum UV index in Mercer is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: An average UV index of 2 in October transforms into this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What is the usual temperature for Mercer in October?
What is the average humidity in October in Mercer?
How many days does it rain in October in Mercer?
When does it start snowing in Mercer?
What is the average length of the day in October in Mercer?
When are sunrise and sunset in October in Mercer?
How long on average sun shines in October in Mercer?
What is the UV index intensity in October in Mercer?
Average temperature in October
Mercer, WI
- Average high temperature in October: 50.5°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (18.3°F).
- Average low temperature in October: 38.3°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in October
Mercer, WI
- Average pressure in October: 29.96"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Mercer, WI
- Average wind speed in October: 8.4mph
The windiest month (with the highest average wind speed) is November (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in October
Mercer, WI
- Average humidity in October: 80%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (71%).
Average rainfall in October
Mercer, WI
- Average rainfall in October: 2.6"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in October
Mercer, WI
- Average rainfall days in October: 12.6 days
The months with the highest number of rainy days are May and June (16 days).
The month with the least rainy days is January (3 days).
Average snowfall in October
Mercer, WI
- Average snowfall in October: 2.05"
The month with the highest snowfall is December (10.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Mercer, WI
- Average snowfall days in October: 5.4 days
The month with the highest number of snowfall days is January (25.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Mercer, WI
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in October: 4h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in October
Mercer, WI
- Average sunshine days in October: 12.5 days
The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is January (6.3 days).
Average UV index in October
Mercer, WI
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in October
Mercer, WI
- Average cloud cover in October: 56
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in October
Mercer, WI
- Average visibility in October: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).
Mercer, Wisconsin, USA
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