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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Mercer, Wisconsin, with an average temperature varying between 18.3°F (-7.6°C) and 7°F (-13.9°C). The coldest period is January, when temperatures fluctuate between an average high of 18.3°F (-7.6°C) and a low of 7°F (-13.9°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Mercer, Wisconsin, with an average temperature ranging between max 21.7°F (-5.7°C) and min 9°F (-12.8°C). Transitioning into February, Mercer experiences an average high-temperature of a still freezing cold 21.7°F (-5.7°C), marking a minor shift from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a cold month in Mercer, Wisconsin, with an average temperature varying between 34.7°F (1.5°C) and 21.2°F (-6°C). March's arrival coincides with a temperature rise, moving from February's subzero cold 21.7°F (-5.7°C) to an icy 34.7°F (1.5°C). Weather in March »
Weather in April
April in Mercer, Wisconsin, is a chilly spring month, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 46.9°F (8.3°C). The beginning of April marks a shift in the average high-temperature, moving from March's cold 34.7°F (1.5°C) to a frosty 46.9°F (8.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Mercer, Wisconsin, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 63.3°F (17.4°C). The changeover to May signals a significant increase in the average high-temperature, rising from a frosty 46.9°F (8.3°C) in April to an enjoyable 63.3°F (17.4°C). Weather in May »
Weather in June
June, the first month of the summer in Mercer, is an agreeable month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 51.4°F (10.8°C). June's arrival is marked by an increase in the average high-temperature, moving from a refreshing 63.3°F (17.4°C) in May to an agreeable 73°F (22.8°C). Weather in June »
Weather in July
July in Mercer, Wisconsin, is a moderately hot summer month, with an average temperature ranging between max 77.5°F (25.3°C) and min 56.8°F (13.8°C). The temperatures reach their highest averages in July, with highs of 77.5°F (25.3°C) and lows of 56.8°F (13.8°C). Weather in July »
Weather in August
August, the last month of the summer in Mercer, is another warm month, with an average temperature varying between 75.2°F (24°C) and 55.6°F (13.1°C). The transition from July to August sees an average high-temperature of a still warm 75.2°F (24°C), indicating a minor variance from the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is also an enjoyable month in Mercer, Wisconsin, with an average temperature ranging between max 66.9°F (19.4°C) and min 48.9°F (9.4°C). The move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 75.2°F (24°C) to a refreshing 66.9°F (19.4°C). Weather in September »
Weather in October
October, like September, in Mercer, Wisconsin, is a cool autumn month, with an average temperature varying between 50.5°F (10.3°C) and 38.3°F (3.5°C). As Mercer, Wisconsin, steps into October, the average high-temperature decreases significantly from the an enjoyable 66.9°F (19.4°C) of September to a fresh 50.5°F (10.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an icy month in Mercer, Wisconsin, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 25.9°F (-3.4°C). The arrival of November brings a distinct temperature shift, with the average high-temperature dropping from a cool 50.5°F (10.3°C) in October to a cold 36°F (2.2°C). Weather in November »
Weather in December
December, the first month of the winter in Mercer, is also a subzero cold month, with an average temperature ranging between min 14.4°F (-9.8°C) and max 23.7°F (-4.6°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a cold 36°F (2.2°C) to a freezing cold 23.7°F (-4.6°C). Weather in December »
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
With its average high temperature of 18.3°F (-7.6°C) and a low of 7°F (-13.9°C), January is regarded as the coldest month.
What is the most humid month?
The most humid month is January, with an average relative humidity of 93%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 3 days and typically collects 1.26" (32mm) of precipitation.
How much does it rain?
In Mercer, during the entire year, the rain falls for 126.3 days and collects up to 24.09" (612mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 120.8 snowfall days, and 54.92" (1395mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 1.9h of sunshine, January has the least sunshine of the year.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Mercer?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the least humid month?
With an average relative humidity of 71%, May is the least humid month.
What is the rainiest month in Mercer?
May is the month with the most rainfall. Rain falls for 16 days and accumulates 3.15" (80mm) of precipitation.
When it does not snow in Mercer?
In Mercer, snow does not fall in June through September.
When are the longest days?
With an average of 15h and 42min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 5, are months with the highest UV index.
What is the warmest month in Mercer?
July is the warmest month, with the temperature often reaching an average high of 77.5°F (25.3°C) and an average low of 56.8°F (13.8°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 9.9h of sunshine.
When does it snow the most?
December is the month with the most snowfall. Snow falls for 23.5 days and accumulates 10.75" (273mm) of snow.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 42min of daylight.
Average temperature
Mercer, WI
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).
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
Mercer, WI
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.07"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
Mercer, WI
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
7mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.6mph - Average wind speed in October:
8.4mph - Average wind speed in November:
8.8mph - Average wind speed in December:
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
Mercer, WI
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (71%).
Average rainfall
Mercer, WI
- Average rainfall in January:
1.26" - Average rainfall in February:
1.3" - Average rainfall in March:
1.46" - Average rainfall in April:
2.72" - Average rainfall in May:
3.15" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.28" - Average rainfall in August:
1.85" - Average rainfall in September:
1.61" - Average rainfall in October:
2.6" - Average rainfall in November:
1.54" - Average rainfall in December:
1.65"
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
Mercer, WI
- Average rainfall days in January:
3 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
9 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
16 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
14.2 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
4.3 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
Mercer, WI
- Average snowfall in January:
9.17" - Average snowfall in February:
9.06" - Average snowfall in March:
6.61" - Average snowfall in April:
8.15" - Average snowfall in May:
1.34" - Average snowfall in June:
0"
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
Mercer, WI
- Average snowfall days in January:
25.6 days - Average snowfall days in February:
22.3 days - Average snowfall days in March:
16.4 days - Average snowfall days in April:
10.7 days - Average snowfall days in May:
1.6 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
5.4 days - Average snowfall days in November:
15.3 days - Average snowfall days in December:
23.5 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 / Average sunshine
Mercer, WI
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 4min
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 January:
1h and 5min - Average sunshine in February:
2h and 1min - Average sunshine in March:
4h and 2min - Average sunshine in April:
6h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 1min - Average sunshine in September:
7h and 5min - Average sunshine in October:
4h and 2min - Average sunshine in November:
3h and 4min - Average sunshine in December:
2h and 1min
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
Mercer, WI
- Average sunshine days in January:
6.3 days - Average sunshine days in February:
6.7 days - Average sunshine days in March:
9.7 days - Average sunshine days in April:
9.1 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
12.5 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
7.2 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
Mercer, WI
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
Mercer, WI
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
Mercer, WI
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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