Annual mean 13°C · wettest around May · prevailing wind SW
Warmest
28.8 °C
Coldest
-1.7 °C
Wettest
32%
Windiest
5.0 m/s
Prevailing
SW
3.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Chillicothe over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -4°C. Chillicothe has no sharply defined rainy season: the chance of rain on a given day runs from 27% in September, the driest month, to 32% in May, the wettest. Winds in Chillicothe are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 1.9 m/s (7 km/h). The prevailing wind is from the SW. The clearest skies in Chillicothe come in June, when the sky is typically 20% covered; January is the cloudiest month, at 39%.
Month by month Chillicothe climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-0°C
-4°C
-5°C
29%
39%
3.0 m/s
0
0
6
February
4°C
-3°C
-2°C
28%
32%
3.3 m/s
4
0
21
March
10°C
3°C
5°C
31%
37%
3.7 m/s
11
0
42
April
16°C
8°C
11°C
32%
33%
3.6 m/s
36
2
64
May
22°C
14°C
20°C
32%
34%
2.6 m/s
65
26
57
June
28°C
20°C
28°C
30%
20%
2.4 m/s
38
64
15
July
29°C
21°C
31°C
31%
22%
2.0 m/s
21
63
5
August
27°C
19°C
29°C
31%
23%
1.9 m/s
40
62
13
September
26°C
16°C
25°C
27%
21%
2.0 m/s
58
53
32
October
18°C
9°C
15°C
29%
29%
2.5 m/s
48
12
64
November
10°C
3°C
6°C
29%
27%
2.8 m/s
14
0
45
December
4°C
-1°C
-1°C
29%
33%
2.9 m/s
2
0
16
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Chillicothe weather by season
Year round, Chillicothe has days of about -0°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -4°C to 21°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around May and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Chillicothe weather in winterDecember to February
High 2°CLow -3°CRain 29%
Winter in Chillicothe has typical daily highs of about 2°C and lows of about -3°C, with a 29% chance of rain on a given day.
Chillicothe weather in springMarch to May
High 16°CLow 8°CRain 32%
Spring in Chillicothe has typical daily highs of about 16°C and lows of about 8°C, with a 32% chance of rain on a given day.
Chillicothe weather in summerJune to August
High 28°CLow 20°CRain 31%
Summer in Chillicothe has typical daily highs of about 28°C and lows of about 20°C, with a 31% chance of rain on a given day.
Chillicothe weather in autumnSeptember to November
High 18°CLow 9°CRain 28%
Autumn in Chillicothe has typical daily highs of about 18°C and lows of about 9°C, with a 28% chance of rain on a given day.
When is the rainy season in Chillicothe?
Chillicothe has no sharply defined rainy season: the chance of rain on a given day runs from 27% in September, the driest month, to 32% in May, the wettest.
What time of year is Chillicothe windiest?
Winds in Chillicothe are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 1.9 m/s (7 km/h). The prevailing wind is from the SW.
What is the average temperature in Chillicothe year round?
The average temperature in Chillicothe over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -4°C.