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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, the same as December, in Chillicothe, Iowa, is a freezing cold winter month, with an average temperature varying between 16.2°F (-8.8°C) and 29.3°F (-1.5°C). January stands out as Chillicothe's coldest month, with temperatures ranging between an average high of 29.3°F (-1.5°C) and a low of 16.2°F (-8.8°C). Weather in January »
Weather in February
February, the last month of the winter in Chillicothe, is a cold month, with an average temperature varying between 33.3°F (0.7°C) and 19.4°F (-7°C). The advent of February denotes an average high-temperature of a wintry 33.3°F (0.7°C), subtly different from January's 29.3°F (-1.5°C). Weather in February »
Weather in March
March, the first month of the spring in Chillicothe, is a frosty month, with an average temperature ranging between min 33.1°F (0.6°C) and max 48.2°F (9°C). March's onset brings a clear escalation in the average high-temperature, soaring from a cold 33.3°F (0.7°C) in February to a chilly 48.2°F (9°C). Weather in March »
Weather in April
April in Chillicothe, Iowa, is a refreshing spring month, with an average temperature ranging between max 60.1°F (15.6°C) and min 42.6°F (5.9°C). April's arrival sees a rise in the average high-temperature, jumping from March's frosty 48.2°F (9°C) to a refreshing 60.1°F (15.6°C). Weather in April »
Weather in May
May, the last month of the spring in Chillicothe, is a pleasant month, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 70°F (21.1°C). May brings a rise in the average high-temperature, transitioning from April's moderate 60.1°F (15.6°C) to an agreeable 70°F (21.1°C). Weather in May »
Weather in June
June, the first month of the summer in Chillicothe, is a warm month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.9°F (26.6°C). An upsurge in temperatures occurs as May gives way to June, with average highs shifting from a pleasant 70°F (21.1°C) to a moderately hot 79.9°F (26.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Chillicothe, Iowa, with an average temperature ranging between min 65.3°F (18.5°C) and max 82.6°F (28.1°C). July tends to be the warmest month, with temperatures averaging a daily high of 82.6°F (28.1°C) and a low of 65.3°F (18.5°C). The average heat index in July is appraised at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Chillicothe, Iowa, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 81.7°F (27.6°C). With the onset of August, a modest change to a still warm 81.7°F (27.6°C) from July's 82.6°F (28.1°C) is noted in high-temperature. Weather in August »
Weather in September
September, the first month of the autumn in Chillicothe, is still a warm month, with an average temperature varying between 75.7°F (24.3°C) and 56.5°F (13.6°C). As August makes way for September, Chillicothe's average high-temperature eases from 81.7°F (27.6°C) to a still warm 75.7°F (24.3°C). Weather in September »
Weather in October
October, like September, in Chillicothe, Iowa, is another comfortable autumn month, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 44.8°F (7.1°C). October suggests a modest reduction in the average high-temperature, shifting from a warm 75.7°F (24.3°C) in September to a refreshing 61.7°F (16.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Chillicothe, is also a frosty month, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 33.6°F (0.9°C). The commencement of November indicates a shift in the average high-temperature, receding from October's comfortable 61.7°F (16.5°C) to a chilly 47.8°F (8.8°C). Weather in November »
Weather in December
December, the first month of the winter in Chillicothe, is still a cold month, with an average temperature ranging between min 23.9°F (-4.5°C) and max 35.1°F (1.7°C). Observing a mild shift, the average high-temperature during December reduces from November's frosty 47.8°F (8.8°C) to a wintry 35.1°F (1.7°C). Weather in December »
Updated: Aug 15, 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 is the coldest month?
January stands out as Chillicothe's coldest month, with temperatures ranging between an average high of 29.3°F (-1.5°C) and a low of 16.2°F (-8.8°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 5.2 days and typically collects 1.06" (27mm) of precipitation.
How many days does it rain?
In Chillicothe, during the entire year, the rain falls for 134.5 days and collects up to 27.17" (690mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall in Chillicothe.
How many days does it snow?
Throughout the year, there are 33.5 snowfall days, and 14.17" (360mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.2h of sunshine.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 8.3 days and accumulates 4.17" (106mm) of snow.
When is Daylight Saving Time (DST) in Chillicothe?
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 wettest month in Chillicothe?
May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 4.02" (102mm) of precipitation.
What is the most humid month?
The most humid month is June, with an average relative humidity of 83%.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest in Chillicothe?
July, with an average high of 82.6°F (28.1°C) and a low of 65.3°F (18.5°C), signifies the warmest month of the year in Chillicothe.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.2h of sunshine.
What is the least humid month?
October is the least humid month, with an average relative humidity of 72%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Chillicothe, IA
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (29.3°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 (16.2°F).
Average pressure
Chillicothe, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Chillicothe, IA
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
7mph - Average wind speed in August:
6.9mph - Average wind speed in September:
7.9mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.2mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity
Chillicothe, IA
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Chillicothe, IA
- Average rainfall in January:
1.06" - Average rainfall in February:
1.18" - Average rainfall in March:
2.13" - Average rainfall in April:
2.83" - Average rainfall in May:
4.02" - Average rainfall in June:
3.86"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days
Chillicothe, IA
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
14 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16.2 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
10.9 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.2 days).
Average snowfall
Chillicothe, IA
- Average snowfall in January:
3.86" - Average snowfall in February:
4.17" - Average snowfall in March:
1.73" - Average snowfall in April:
1.26" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Chillicothe, IA
- Average snowfall days in January:
10.2 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
4.6 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Chillicothe, IA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
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 12min).
Average sunshine days
Chillicothe, IA
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
18.9 days
The month with the most sunshine days is December (18.9 days).
The month with the least sunshine days is May (11.6 days).
Average UV index
Chillicothe, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Chillicothe, IA
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility
Chillicothe, IA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).