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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
Climate and monthly weather forecast
Weather in January
January, like December, in Napoleon, Indiana, is another cold winter month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 35.2°F (1.8°C). January is the coldest month, exhibiting average temperatures of 35.2°F (1.8°C) at the peak and 22.8°F (-5.1°C) at the base. Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Napoleon, Indiana, with an average temperature ranging between min 26.1°F (-3.3°C) and max 39.9°F (4.4°C). Napoleon records a slight change with February's average high-temperatures adjusting to a still icy 39.9°F (4.4°C) from January's 35.2°F (1.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Napoleon, Indiana, with an average temperature ranging between max 50.9°F (10.5°C) and min 35.2°F (1.8°C). In March, the meteorological conditions change with the average high-temperature moving from a cold 39.9°F (4.4°C) in February to a cool 50.9°F (10.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in Napoleon, Indiana, with an average temperature varying between 63°F (17.2°C) and 45.3°F (7.4°C). The rise of average high-temperatures is seen in April, with an increase from a cool 50.9°F (10.5°C) in March to a refreshing 63°F (17.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Napoleon, Indiana, with an average temperature varying between 55.2°F (12.9°C) and 72.5°F (22.5°C). May brings an increase in the average high-temperature, progressing from a comfortable 63°F (17.2°C) in April to an agreeable 72.5°F (22.5°C). Weather in May »
Weather in June
June, the first month of the summer in Napoleon, is a warm month, with an average temperature varying between 62.4°F (16.9°C) and 80.2°F (26.8°C). As June sets, the average high-temperature shows a slight increase, moving up from an agreeable 72.5°F (22.5°C) in May to a warm 80.2°F (26.8°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Napoleon, Indiana, with an average temperature ranging between min 65.3°F (18.5°C) and max 82.9°F (28.3°C). In Napoleon, the average temperatures in July are the highest, with a peak at 82.9°F (28.3°C) and a low of 65.3°F (18.5°C). The heat index for July is estimated at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Napoleon, Indiana, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 63.3°F (17.4°C). The introduction of August notes a subtle temperature variation to a still warm 82°F (27.8°C) from July's 82.9°F (28.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Napoleon, is still a warm month, with an average temperature varying between 58.3°F (14.6°C) and 76.5°F (24.7°C). With the arrival of September, Napoleon experiences a modest decline in average high-temperatures, transitioning from a moderately hot 82°F (27.8°C) in August to a still warm 76.5°F (24.7°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Napoleon, Indiana, with an average temperature fluctuating between 63.9°F (17.7°C) and 46.9°F (8.3°C). October brings a drop in Napoleon's average high-temperature, falling from a warm 76.5°F (24.7°C) in September to a comfortable 63.9°F (17.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Napoleon, is another cool month, with an average temperature ranging between min 36.3°F (2.4°C) and max 50.9°F (10.5°C). As October transitions to November, the average high-temperature falls from a comfortable 63.9°F (17.7°C) to a fresh 50.9°F (10.5°C). Weather in November »
Weather in December
December, the first month of the winter in Napoleon, is still a cold month, with an average temperature ranging between max 40.6°F (4.8°C) and min 29.7°F (-1.3°C). December indicates a shift in the average high-temperature, from November's fresh 50.9°F (10.5°C) to a cold 40.6°F (4.8°C). Weather in December »
Updated: Jun 20, 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 time of the year is the coldest?
In Napoleon, January is the coldest month, with temperatures averaging a high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C).
How many days does it rain?
In Napoleon, during the entire year, the rain falls for 169.3 days and collects up to 36.18" (919mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
How many days does it snow?
Throughout the year, in Napoleon, there are 31.2 snowfall days, and 11.42" (290mm) of snow is accumulated.
What is the month with the least sunshine in Napoleon?
January has the least sunshine of the year, with an average of 4h of sunshine.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 7.5 days and typically aggregates up to 2.83" (72mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the wettest month?
April is the month with the most rainfall. Rain falls for 16.8 days and accumulates 4.09" (104mm) of precipitation.
When it does not snow?
In Napoleon, snow does not fall in May through September.
When are the longest days in Napoleon?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
Napoleon's warmest month, July, registers temperatures that range from a high of 82.9°F (28.3°C) to a low of 65.3°F (18.5°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.2h of sunshine.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 14.2 days and typically collects 2.24" (57mm) of precipitation.
What is the least humid month?
October is the least humid month, with an average relative humidity of 74%.
What is the most humid month?
With an average relative humidity of 82%, December is the most humid month.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
What is the month with the lowest UV index in Napoleon?
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Napoleon, IN
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Napoleon, IN
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Napoleon, IN
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.3mph - Average wind speed in September:
6mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity
Napoleon, IN
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Napoleon, IN
- Average rainfall in January:
2.68" - Average rainfall in February:
2.8" - Average rainfall in March:
3.27" - Average rainfall in April:
4.09" - Average rainfall in May:
3.86" - Average rainfall in June:
3.07"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.68" - Average rainfall in September:
2.24" - Average rainfall in October:
2.76" - Average rainfall in November:
2.68" - Average rainfall in December:
2.87"
The wettest month (with the highest rainfall) is April (4.09").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days
Napoleon, IN
- Average rainfall days in January:
9.9 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
14.7 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
20.3 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall
Napoleon, IN
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Napoleon, IN
- Average snowfall days in January:
8.1 days - Average snowfall days in February:
7.5 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0 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:
0.1 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
6.8 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Napoleon, IN
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
5h and 2min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Napoleon, IN
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
13 days - Average sunshine days in March:
11.6 days - Average sunshine days in April:
11.2 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
12.2 days - Average sunshine days in September:
13.5 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
16.8 days - Average sunshine days in December:
13.9 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (8.8 days).
Average UV index
Napoleon, IN
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Napoleon, IN
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Napoleon, IN
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).