What is the hottest month in Cincinnati?

July is Cincinnati's hottest month, with the highest average daily high of the year. The month-by-month table above shows Cincinnati's exact average high and low for each month, based on the 1991–2020 climate normals — the standard 30-year reference period meteorologists use.

What is the coldest month in Cincinnati?

January is Cincinnati's coldest month, with the lowest average daily low of the year. The averages-by-month chart above gives the exact average high and low for every month, so you can see how cold a typical winter day runs.

How much does it rain in Cincinnati?

Cincinnati's total annual precipitation and its wettest and driest months are shown in the rainfall-by-month section above. Those figures are 1991–2020 normals — the average monthly precipitation total across that 30-year window — so they reflect a typical year rather than any single wet or dry season.

What months are best to visit Cincinnati?

The most comfortable months in Cincinnati are usually the shoulder seasons — spring and fall — when temperatures sit between the summer peak and winter low and rainfall is moderate. Compare the average high, low, and precipitation for each month in the table above to pick the window that fits the weather you want.

Has Cincinnati gotten hotter?

Yes. The warming-stripes chart above plots Cincinnati's annual mean temperature for every complete year of station data from 1951 to 2025, and the trend line fitted to 1951–2025 rises about 1.1°F (+0.15°F per decade) — recent decades average warmer than the start of that window.

What is the record high temperature in Cincinnati?

Cincinnati's all-time record high — the hottest single day in the station record — is shown in the records section above, along with the date it occurred. Records are drawn from the nearest long-term weather station's full daily history, which begins in 1949, so they capture the most extreme heat on record, not just a typical summer day.

What is the record low temperature in Cincinnati?

Cincinnati's all-time record low and the date it was set appear in the records section above. Like the record high, it comes from the station's full daily history back to 1949, so it reflects the coldest day on record rather than an average winter low.

Cincinnati, Ohio Climate

Cincinnati weather by month — average highs and lows, rainfall, all-time records, and the warming record since 1951

Hottest month: 87°FJuly average high
Coldest month: 24°FJanuary average low
Precipitation: 43.4 ina year
Wettest month: May4.7 in on average

1991–2020 NOAA climate normals

At 1:37 AM EDT on Sep 21 it was 71°F in Cincinnati — 13° above the 58°F typical for that hour (estimated from the Sep 21 normal high of 77°F and low of 54°F, interpolated from the monthly normals).

Cincinnati weather by month

Average high, low, and rainfall for every month, from Cincinnati’s 1991–2020 climate normals, the standard 30-year reference period. Each band runs from the month’s average low to its average high: a tall band is a big day-to-night swing.

41°24°

2.9″Jan

45°26°

2.8″Feb

55°33°

3.9″Mar

67°43°

4.4″Apr

75°53°

4.7″May

83°61°

4.6″Jun

87°65°

4.4″Jul

86°64°

3.4″Aug

80°56°

3.1″Sep

68°44°

3.0″Oct

55°34°

2.9″Nov

45°28°

3.3″Dec

Average high → low (°F)Rainfall (inches)1991–2020 normals

Cincinnati monthly weather averages — average high, average low, and rainfall for each month, from the 1991–2020 U.S. Climate Normals (NOAA).
Month	Avg High	Avg Low	Rainfall
January	41°F	24°F	2.9 in
February	45°F	26°F	2.8 in
March	55°F	33°F	3.9 in
April	67°F	43°F	4.4 in
May	75°F	53°F	4.7 in
June	83°F	61°F	4.6 in
July	87°F	65°F	4.4 in
August	86°F	64°F	3.4 in
September	80°F	56°F	3.1 in
October	68°F	44°F	3.0 in
November	55°F	34°F	2.9 in
December	45°F	28°F	3.3 in
Annual	65°F	44°F	43.4 in

Cincinnati’s warming record since 1951

Cincinnati has warmed 1.1°F since 1951 (+0.15°F per decade, 1951–2025 trend)Gaps are years with incomplete station data.

Not what a typical year looks like, but how the typical year has changed. Each stripe is one complete year’s average temperature at the station, 1951 to 2025, colored against the mean of those years: blue for cooler years, red for warmer ones. The figure under the stripes is the least-squares trend line fitted to 1951–2025 — Cincinnati averages about 1.1°F warmer by that trend than in 1951.

Compared with the national rankingThe fastest-warming cities ranking fits every city to the same years, 1970–2025, so rates compare like for like. Over that window Cincinnati warms at +0.16°F per decade, #66 of 66. The figure above uses the station’s own record, 1951–2025, so the two rates differ.

Cincinnati rainfall by month

Cincinnati averages 43.4 inches of precipitation a year. The wettest month is May and the driest is February.

Cincinnati temperature records

All-time record high: 105°Fset July 30, 1999
All-time record low: -22°Fset January 19, 1994

Records are drawn from the nearest long-term weather station’s full daily history, so they capture the most extreme single day Cincinnati has recorded — not a typical seasonal high or low.

Frequently asked

What is the hottest month in Cincinnati?: July is Cincinnati's hottest month, with the highest average daily high of the year. The month-by-month table above shows Cincinnati's exact average high and low for each month, based on the 1991–2020 climate normals — the standard 30-year reference period meteorologists use.
What is the coldest month in Cincinnati?: January is Cincinnati's coldest month, with the lowest average daily low of the year. The averages-by-month chart above gives the exact average high and low for every month, so you can see how cold a typical winter day runs.
How much does it rain in Cincinnati?: Cincinnati's total annual precipitation and its wettest and driest months are shown in the rainfall-by-month section above. Those figures are 1991–2020 normals — the average monthly precipitation total across that 30-year window — so they reflect a typical year rather than any single wet or dry season.
What months are best to visit Cincinnati?: The most comfortable months in Cincinnati are usually the shoulder seasons — spring and fall — when temperatures sit between the summer peak and winter low and rainfall is moderate. Compare the average high, low, and precipitation for each month in the table above to pick the window that fits the weather you want.
Has Cincinnati gotten hotter?: Yes. The warming-stripes chart above plots Cincinnati's annual mean temperature for every complete year of station data from 1951 to 2025, and the trend line fitted to 1951–2025 rises about 1.1°F (+0.15°F per decade) — recent decades average warmer than the start of that window.
What is the record high temperature in Cincinnati?: Cincinnati's all-time record high — the hottest single day in the station record — is shown in the records section above, along with the date it occurred. Records are drawn from the nearest long-term weather station's full daily history, which begins in 1949, so they capture the most extreme heat on record, not just a typical summer day.
What is the record low temperature in Cincinnati?: Cincinnati's all-time record low and the date it was set appear in the records section above. Like the record high, it comes from the station's full daily history back to 1949, so it reflects the coldest day on record rather than an average winter low.