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Contents
- The climate of Hamilton
- The best time to visit Hamilton
- The worst time to visit Hamilton
- Spring weather in Hamilton
- Summer weather in Hamilton
- Autumn weather in Hamilton
- Winter weather in Hamilton
- 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
The climate of Hamilton
Hamilton, Ohio, USA falls within the Köppen climate classification of Cfa, typically characterized as a humid subtropical climate with no distinct dry season. A close inspection of weather patterns indicates a full spectrum of temperature oscillations and variations in relative humidity, rainfall, and snowfall. Soil moisture in Hamilton varies widely from month to month due to these climatic factors. Monthly averages enable the residents and tourists alike to gauge the town's overall weather throughout the year.
January and February show the coolest temperatures with the highs averaging between 35.2°F (1.8°C) and 39.7°F (4.3°C) and lows from 22.8°F (-5.1°C) to 26.1°F (-3.3°C). The warmest temperatures occur from June to August, where highs fluctuate from 80.1°F (26.7°C) to 83.3°F (28.5°C) and lows range from 62.6°F (17°C) to 65.7°F (18.7°C). The relative humidity generally stays high, hitting around 81% in the colder months and dipping to 74% in October, making it the least humid month.
Rainfall averages peak at 2.99" (76mm) in May, slightly lessening to 2.24" (57mm) in June and hitting the year's low at 1.42" (36mm) in September. The number of rainfall days shows a similar pattern, peaking in May and June, then again in July, and dropping in the autumn months. Snowfall is mostly confined to the winter season with the highest average of 1.81" (46mm) in February and March and no snowfall from May to September.
January and February show the coolest temperatures with the highs averaging between 35.2°F (1.8°C) and 39.7°F (4.3°C) and lows from 22.8°F (-5.1°C) to 26.1°F (-3.3°C). The warmest temperatures occur from June to August, where highs fluctuate from 80.1°F (26.7°C) to 83.3°F (28.5°C) and lows range from 62.6°F (17°C) to 65.7°F (18.7°C). The relative humidity generally stays high, hitting around 81% in the colder months and dipping to 74% in October, making it the least humid month.
Rainfall averages peak at 2.99" (76mm) in May, slightly lessening to 2.24" (57mm) in June and hitting the year's low at 1.42" (36mm) in September. The number of rainfall days shows a similar pattern, peaking in May and June, then again in July, and dropping in the autumn months. Snowfall is mostly confined to the winter season with the highest average of 1.81" (46mm) in February and March and no snowfall from May to September.
The best time to visit Hamilton
In considering various climate conditions, the best time to tour Hamilton, Ohio would most likely be from May to October. This period promises optimal climatic conditions, such as comfortable temperatures from 62.6°F (17°C) to 82.6°F (28.1°C), low snowfall, and adequate sunshine hours that peak at approximately 10.3 hours in June and July. The UV index ranges between 6 in these months, suggesting sufficient sun protection measures are required.
During this period, one may enjoy longer daylight hours, extending from 13.3 hours in April to a maximum of 14.9 hours in June before decreasing to 11.1 hours in October. The abundance of daylight combines with amiable weather conditions to create an encouraging environment for outdoor pursuits and explorations.
During this period, one may enjoy longer daylight hours, extending from 13.3 hours in April to a maximum of 14.9 hours in June before decreasing to 11.1 hours in October. The abundance of daylight combines with amiable weather conditions to create an encouraging environment for outdoor pursuits and explorations.
The worst time to visit Hamilton
The least desirable time to visit Hamilton would likely be the months of January and February. These winter months showcase the coldest temperatures, hovering around 35.2°F (1.8°C) and 39.7°F (4.3°C) with lows from 22.8°F (-5.1°C) to 26.1°F (-3.3°C). During this time, the chances of snowfall are higher, with an average of 1.38" (35mm) in January and 1.81" (46mm) in February. The accumulation of snowfall coupled with low temperatures may hinder outdoor activities.
Spring weather in Hamilton
Spring typically exhibits a gradual increase in temperature and rainfall in Hamilton. March experiences a moderate high of 50.2°F (10.1°C), which eventually rises to 62.6°F (17°C) in April, and further to 72.5°F (22.5°C) in May. Simultaneously, rainfall averages increase from 2.17" (55mm) in March to 2.64" (67mm) in April to a peak of 2.99" (76mm) in May.
Summer weather in Hamilton
Summers in Hamilton present warm temperatures with average highs fluctuating between 80.1°F (26.7°C) in June, peaking at 83.3°F (28.5°C) in July, and slightly dipping to 82.6°F (28.1°C) in August. Along with these temperatures, summer brings in decreased rainfall from 2.24" (57mm) in June to a yearly low of 1.69" (43mm) in August.
Autumn weather in Hamilton
Autumn in Hamilton offers a gradual decline in temperatures, with highs falling from 77°F (25°C) in September to 50.9°F (10.5°C) in November. Rainfall also shows a similar downward trend, starting at 1.42" (36mm) in September and slightly increasing to 1.77" (45mm) by November.
Winter weather in Hamilton
Winters in Hamilton present rather cold conditions. Notably, December to February are the coldest months, with high temperatures plunging to an average between 35.2°F (1.8°C) to 40.8°F (4.9°C) and lows hitting between 22.8°F (-5.1°C) to 29.5°F (-1.4°C). As expected, winter also brings snow, peaking at 1.81" (46mm) in February.
Weather in January
January in Hamilton, Ohio, greets the residents with chilly winds and frosty temperatures. The lowest temperature recorded is 22.8°F (-5.1°C), while the highest soars to 35.2°F (1.8°C). The sunlight is scarce, and the days can be quite gloomy. Weather in January »
Weather in February
As the year progresses, Hamilton experiences a slight elevation in the temperature from January to February, making conditions a little more tolerable. Though Hamilton sits under heavy clouds most of the time, moments of clear skies allow the sunshine to brighten up the city. Weather in February »
Weather in March
With the arrival of March, Hamilton glimpses the first signs of spring. Temperatures gradually rise, providing a distinct contrast to the frosty landscape of the preceding months. There is a significant increase in rainfall to 2.17" (55mm) as the snow dissipates, paving the way for spring showers. Weather in March »
Weather in April
April in Hamilton, Ohio, witnesses a further rise in temperature and consecutive decline in snowfall, indicating the departure of winter. Now, April showers dominate the weather scenarios, with a rainfall amount reaching 2.64" (67mm). Weather in April »
Weather in May
As May dawns, the weather in Hamilton, Ohio, transforms completely. Post the cool spell of April, the temperatures continue climbing higher, indicating the onset of summer. Rainfall amounts peak at this time of the year, measuring at 2.99" (76mm). Weather in May »
Weather in June
Come June, and summer formally arrives in Hamilton, Ohio. There is an evident escalation in the temperature scale, and the cool breeze winds down to a mild murmur. Despite the decreased rainfall rate at 2.24" (57mm), humidity levels rise due to the evaporation from sun-soaked ground surfaces. Weather in June »
Weather in July
Hamilton city, Ohio, is in the throes of its hottest month in July. The mercury levels hover steadily at the higher end of the spectrum during this time. Though rainfall levels drop only slightly to 2.36" (60mm), the high humidity can create an enclosure of a sweltering atmosphere. Weather in July »
Weather in August
During August, Hamilton weather experiences a minor dip in the average temperature levels, but it continues to resonate with summer vibes. The summer sun still reigns supreme with clear skies and longer daylight periods. The monthly rainfall dips further to 1.69" (43mm), marking a decline in summer showers. Weather in August »
Weather in September
In September, Hamilton begins transitioning from the scorching summer environment to a cooler, bearable climate. A noticeable drop in temperatures signals the onset of the autumn season. A drop in rainfall to 1.42" (36mm) and an equally reduced cloud cover allows for clearer skies and prominent sunsets. Weather in September »
Weather in October
As October rolls in, Hamilton, Ohio, experiences full-fledged autumn. The temperatures continue dropping, and the conditions become increasingly pleasant. Though rainfall levels rise slightly to 1.5" (38mm), the weather remains largely dry with a moderate amount of sunshine. Weather in October »
Weather in November
The month of November brings around a distinctive chill in the air in Hamilton, Ohio. There is a significant drop in temperature indicating the onset of the winter season. Despite the cooler climate, rainfall maintains a steady increase to measure at 1.77" (45mm). Weather in November »
Weather in December
December ushers in a wintry touch to Hamilton, Ohio's weather. The temperatures stoop down considerably, with the lowest being 29.5°F (-1.4°C) and the highest reaching 40.8°F (4.9°C). The most noticeable weather feature during this month is the return of snowfall, up to 1.22" (31mm). Weather in December »
Updated: Jul 31, 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 time of year?
Temperature records mark January as the coldest month, with highs averaging 35.2°F (1.8°C) and lows at 22.8°F (-5.1°C).
What is the most humid month?
January, February and December, with an average relative humidity of 81%, are most humid months.
How many days does it rain?
Throughout the year, in Hamilton, there are 147.8 rainfall days, and 24.33" (618mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall.
How much does it snow?
In Hamilton, during the entire year, snow falls for 25 days and aggregates up to 6.57" (167mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4h of sunshine.
When does it snow the most?
The months with the most snowfall are February and March, with an average 1.81" (46mm) of accumulated 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?
May is the month with the most rainfall. Rain falls for 18.1 days and accumulates 2.99" (76mm) of precipitation.
When it does not snow?
May through October are months without snowfall.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What are the months with the most sunshine?
June and July, with an average of 10.3h of sunshine, are months with the most sunshine.
What month is the hottest?
In Hamilton, the peak average temperatures are observed in July, with a high of 83.3°F (28.5°C) and a low of 65.7°F (18.7°C).
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 1.42" (36mm) of precipitation.
What is the least humid month in Hamilton?
With an average relative humidity of 74%, October is the least humid month.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
When is the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Hamilton, OH
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Hamilton, 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:
29.96"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:
30.04"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
Hamilton, OH
- Average wind speed in January:
9.1mph - Average wind speed in February:
9mph - 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:
6.4mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.9mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity
Hamilton, OH
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Hamilton, OH
- Average rainfall in January:
1.61" - Average rainfall in February:
2.01" - Average rainfall in March:
2.17" - Average rainfall in April:
2.64" - Average rainfall in May:
2.99" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.36" - Average rainfall in August:
1.69" - Average rainfall in September:
1.42" - Average rainfall in October:
1.5" - Average rainfall in November:
1.77" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days
Hamilton, OH
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
8.2 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (7.9 days).
Average snowfall
Hamilton, OH
The months with the highest snowfall are February and March (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Hamilton, OH
- Average snowfall days in January:
7.1 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
4.2 days - Average snowfall days in April:
0.7 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 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
4.9 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Hamilton, OH
- Average daylight in January:
9h and 5min - 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 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 2min
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 24min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Hamilton, OH
- Average sunshine days in January:
17 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
19 days - Average sunshine days in December:
16 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index
Hamilton, OH
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Hamilton, OH
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Hamilton, OH
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).
Hamilton, Ohio, USA
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