Climate and monthly weather forecastChillicothe, OH
Climate and monthly weather forecast
The climate of Chillicothe
Chillicothe, situated in the Ohio Valley, falls into the Koppen climate category Cfa; representing a humid subtropical climate with no dry season. This characteristic directly influences the year-round weather conditions and is reflected in the monthly averages.Fluctuations in temperature throughout the year are substantial, with minimum values occurring in January at 22.8°F (-5.1°C), and maximum values peaking at 83.8°F (28.8°C) in July. With respect to rainfall, precipitation is distributed evenly across the year, with the highest levels occurring in May at 2.95" (75mm) and the lowest in September at 1.54" (39mm). Snowfall is a common occurrence during the colder part of the year with maximum amounts recorded in January and December of precipitation is typically accumulated. Throughout the year, there are 156.4 rainfall days, and 25.63" (651mm) of precipitation is accumulated. Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 9.6 days and accumulates 2.48" (63mm) of snow. In Chillicothe, the average length of the day in January is 9h and 46min.
On the first day of the month, sunrise is at 7:51 am and sunset at 5:19 pm. On the last day of January, sunrise is at 7:39 am and sunset at 5:50 pm EST. With an average of 3.8h of sunshine, January has the least sunshine of the year. In January, the average daily maximum UV index in Chillicothe is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 2 in January transforms into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Weather in February
There is a slight rise in temperature as February progresses, contributing to an incrementally milder climate. The month mirrors January's high humidity, prolonged cloud cover, and intermittent snowfall. With 2.28" (58mm) of snow, winter lovers can anticipate some continuing fun. Weather in February »Weather in March
March carries the baton from February with a marked improvement in weather conditions. With a shift towards more moderate temperatures, inhabitants of Chillicothe will begin to note the distinct transition from winter to spring. A notable change is the increasing daylight hours, gradually lengthening each day. Weather in March »Weather in April
April ushers in a mellow climate, with temperatures ranging from 44.2°F (6.8°C) to 63.1°F (17.3°C). This marks a substantial leap from March's chill, heralding the embrace of more comfortable weather. Sunshine dominates an ample portion of the day, a pleasant change from the earlier months' gloom. Weather in April »Weather in May
May signals the advent of warmer days, as the trend towards rising temperatures continues in Chillicothe. A significant increase in rainfall of 2.95" (75mm) hints towards the blooming season of flowers and the freshness that follows showers. Weather in May »Weather in June
June continues the upward swing in temperature, bringing with it an air of summer sunshine. Balmy temperatures, higher daylight hours, and dropping cloud percentage form an inviting ensemble for outdoor activities. More sunshine graces Chillicothe and a dip in wind speed adds to the appeal. Weather in June »Weather in July
July, seeped in the mid-summer essence, registers the highest temperatures of the year, oscillating from 64°F (17.8°C) to 83.8°F (28.8°C). It's peak season for sunbathing, with the UV Index tipping to 6. Extended daylight, lower wind speeds, and clear skies paint an ideal background for any summer activity. Weather in July »Weather in August
August continues the celebration of summer in Chillicothe with temperatures relatively similar to July. The overall footing of the season remains constant, marked by a drop in humidity and increasing sunshine hours. The month observes a decrease in rainfall from 2.56" (65mm) to 1.93" (49mm), reinforcing the emphasis on sunny, outdoor exploits. Weather in August »Weather in September
September introduces the first whiff of autumn, accompanied by a modest drop in temperature. Yet, the transition is subtle, keeping in line with the bright tenor of the previous months. Chillicothe witnesses an increase in wind speed, introducing a pleasantly crisp feel to the air. Weather in September »Weather in October
October is indicative of autumn's full arrival in Chillicothe, as temperatures plunge significantly. The feel of the weather mirrors the emblematic fall attributes - a cooler breeze, fewer hours of daylight, and an enhanced fall foliage. Weather in October »Weather in November
November pushes the temperature scale further down in Chillicothe, with a more substantial dip compared to October. The nip in the air finds accompaniment in dense cloud cover and frequent rainfall. Adding to the wintry prelude is the appearance of snowfall, with November recording 0.79" (20mm) of snow. Weather in November »Weather in December
December welcomes winter full swing into Chillicothe. This sees colder temperatures, dwindling daylight, and an increase in snowfall to 1.57" (40mm). The reduction in hours of sunshine, paired with a rise in cloud percentage, underscores the wintry setting. Weather in December »Updated: Aug 28, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month that records the lowest temperatures, with averages ranging from a high of 35.4°F (1.9°C) to a low of 22.8°F (-5.1°C).
January and February, with an average relative humidity of 82%, are most humid months.
Throughout the year, there are 156.4 rainfall days, and 25.63" (651mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
January is the month with the most snowfall. Snow falls for 9.6 days and accumulates 2.48" (63mm) of snow.
Throughout the year, there are 31.6 snowfall days, and 8.94" (227mm) of snow is accumulated.
The month with the least sunshine in Chillicothe is January, with an average of 3.8h of sunshine.
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.
The month with the most rainfall is May, when the rain falls for 17.9 days and typically aggregates up to 2.95" (75mm) of precipitation.
May through October are months without snowfall.
With an average of 14h and 54min of daylight, June has the longest days of the year.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July, with average temperatures reaching a high of 83.8°F (28.8°C) and a low of 64°F (17.8°C), is the warmest month.
With an average of 10.6h of sunshine, August has the most sunshine of the year.
September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.54" (39mm) of precipitation.
With an average relative humidity of 75%, November is the least humid month.
The month with the shortest days is December, with an average of 9h and 30min of daylight.
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Chillicothe, OH
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Chillicothe, OH
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Chillicothe, OH
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.3mph - Average wind speed in March:
7.9mph - Average wind speed in April:
8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Chillicothe, OH
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall
Chillicothe, OH
- Average rainfall in January:
1.69" - Average rainfall in February:
2.17" - Average rainfall in March:
2.36" - Average rainfall in April:
2.36" - Average rainfall in May:
2.95" - Average rainfall in June:
2.17"
- Average rainfall in July:
2.56" - Average rainfall in August:
1.93" - Average rainfall in September:
1.54" - Average rainfall in October:
1.73" - Average rainfall in November:
1.77" - Average rainfall in December:
2.4"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days
Chillicothe, OH
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
13.9 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (8.4 days).
Average snowfall
Chillicothe, OH
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Chillicothe, OH
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
0.8 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 days - Average snowfall days in November:
2.2 days - Average snowfall days in December:
6.8 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Chillicothe, OH
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 30min
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:
3h and 48min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 54min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 36min - Average sunshine in September:
8h and 12min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Chillicothe, OH
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
16 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
14.9 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (9.8 days).
Average UV index
Chillicothe, OH
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
Chillicothe, OH
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Chillicothe, OH
The months with the highest visibility are February, March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, May, July and September (5mi).
