Climate and monthly weather forecast
McComb, MS

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The climate of McComb

McComb, Mississippi sits comfortably within the humid subtropical climate zone, recognized by the Köppen climate classification as 'Cfa'. This region, located in the United States, remains devoid of a dry season, while still experiencing relatively high humidity levels throughout the year.

Through a closer inspection of climatological data, an annual weather pattern emerges. Generally, the temperatures vary significantly over the year, reaching their peak during the summer months and dipping to the lowest during winter. Specifically, average high temperatures scale from 56.7°F (13.7°C) in January to 90.9°F (32.7°C) come July. In sync with this trend, low temperatures show a similar pattern, fluctuating between 39.7°F (4.3°C) in January and climbing up to 72.1°F (22.3°C) in both July and August.

Periods of rainfall permeate the entire year, yet display stark differences in intensity. These varied quantities range from 0.79" (20mm) in November to 2.6" (66mm) during August, providing insight into the precipitation behavior of the region. Notably, snowfall seen in McComb is insignificant, limited to just 0.12" (3mm) in January and December alone.

The best time to visit McComb

Owing to the humid subtropical climate, the favorable times for visits to McComb will largely be dictated by personal preference and weather tolerance levels. Nevertheless, for those seeking a balance between heat and rain, April to June would be the recommended period. During this time, temperatures remain pleasantly warm, hovering from 69.3°F (20.7°C) to 90°F (32.2°C), while rainfall is on the lower end of the scale, at an average of 1.26" (32mm) to 1.61" (41mm).

The worst time to visit McComb

Navigating McComb would be less pleasant during the peak summer months of July and August. With temperatures soaring to high averages of 90.3°F (32.4°C) to 90.9°F (32.7°C) and rainfall peaking concerning 2.52" (64mm) to 2.6" (66mm), the heat and humidity conditions could be overwhelming. This time of the year is particularly less desirable for outdoor activities or sightseeing.

Spring weather in McComb

Spring winds into McComb with a noticeable climb in temperatures and a gradual increase in rainfall. March witnesses high temperatures of 69.3°F (20.7°C) to 76.8°F (24.9°C) in April and the low temperatures scale up from 50°F (10°C) to 55.9°F (13.3°C). While the rainfall measures 1.26" (32mm) in March, it increases slightly to 1.38" (35mm) in April.

Summer weather in McComb

Summer hits a hot streak in McComb with the high temperatures scaling upward from 83.8°F (28.8°C) in May, reaching a boiling point of 90.9°F (32.7°C) in July and dropping to 86.7°F (30.4°C) by September. The lows follow suit, with temperatures steadily rising from 63.1°F (17.3°C) in May to 72.1°F (22.3°C) in both July and August. The rainfall also hits a high during July and August with 2.52" (64mm) and 2.6" (66mm) respectively.

Autumn weather in McComb

Autumn presents a cooling trend in McComb. High temperatures fall from 86.7°F (30.4°C) in September to a mild 66°F (18.9°C) by November. Likewise, low temperatures follow a similar pattern, averaging 68°F (20°C) in September and trailing off to 47.3°F (8.5°C) in November. Rainfall declines quite significantly during this period as well, decreasing from 1.42" (36mm) in September to a minimal 0.79" (20mm) in November.

Winter weather in McComb

Winter months in McComb are characterized by the coolest temperatures and sporadic snowfall. While the highs range from 59°F (15°C) to 66°F (18.9°C) during this period, lows can reach 39.7°F (4.3°C) in January. Rainfall falls to an average 1.26" (32mm) in December and January, and snow makes a trivial appearance with just 0.12" (3mm) in January.

Weather in January

The chilly month of January brings a mild winter season to McComb, Mississippi, while the moderate rainfall results in wet conditions. There's a noticeable dip in daylight hours, compared to the preceding months, resulting in shorter days and longer nights. Weather in January »

Weather in February

In McComb, the weather in February represents a transition phase from winter to spring. As compared to January, there's an observable rise in the average temperature, humidity, and daylight hours. These changes paint a picture of a town inching closer towards warmer months even though the temperatures remain relatively low. Weather in February »

Weather in March

March brings a noticeable change in McComb's weather, acting as a gateway to the vibrant spring season. Warmer conditions gradually creep in, extending outdoor activities for residents and tourists alike. This month's main characteristic is the influx of longer day time, indicating the onset of the vernal equinox. Weather in March »

Weather in April

April in McComb signals the full onslaught of the spring season. The city lives up to its reputation of displaying a temperate continental climate, characterized by moderate rainfall and increased daylight hours. Concurrently, the monthly minimum and maximum temperatures progress towards a warmer spectrum, paving the way for milder weather conditions in the city. Weather in April »

Weather in May

The weather in May in McComb, Mississippi showcases a sharp transition from the cool spring to the early onset of summer. The rise in temperature combined with increased hours of sunshine sets the stage for warm and generally sunny weather. Weather in May »

Weather in June

June sets the stage for the full onset of summer in McComb, Mississippi. Residents experience the warmest and longest days of the year during this time. The city's landscapes bask under the glory of abundant sunlight, prompting an active outdoor life amidst the natural surroundings. Weather in June »

Weather in July

July in McComb sees the weather at its zenith in terms of heat. It's resoundingly the hottest month of the year, with average daily temperatures reaching their maximum at 90.9°F (32.7°C). This extreme presents a stark contrast to the pleasantly mild temperatures of the spring months prior. Weather in July »

Weather in August

August carries forward the torrid weather conditions typical of McComb's summer season. Despite a slight dip in temperatures compared to July, the weather remains substantially hot throughout the month. The city remains drenched in sunshine for extended periods, offering ample opportunities for enjoying the summer sun. Weather in August »

Weather in September

September witnesses the gradual transition of McComb's weather from the peak summer conditions to the cooler autumn season. The temperatures start to decline, giving a noticeable relief from the scorching summer heat. Rainfall continues to be significant, although not quite as high as August's peak. Weather in September »

Weather in October

October showcases a significant shift in McComb's weather with the onset of the autumn season. It's a time when the blazing summer gives way to softer sunlight and moderate temperatures. The fall foliage in full swing adds to the city's charm. Weather in October »

Weather in November

November marks the transition from fall to winter in McComb. The weather undergoes noticeable changes with a substantial dip in temperature and daylight hours. As winter starts creeping in, the city experiences a sharp reduction in temperature, with the mercury falling to residuals of 66°F (18.9°C) on average. Weather in November »

Weather in December

The last month of the year, December, brings the full-blown winter season to McComb, Mississippi. Subdued sunlight, lesser daylight hours, and a chill in the air mark this time of the year. While temperatures continue to plunge further, signs of frost become increasingly common. Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in McComb?

McComb, Mississippi, experiences its average lowest temperatures in January, reaching a peak of 56.7°F (13.7°C) and a minimum of 39.7°F (4.3°C).

How many days does it rain in McComb?

In McComb, Mississippi, during the entire year, the rain falls for 151.2 days and collects up to 17.8" (452mm) of precipitation.

When does it snow in McComb?

Months with snowfall in McComb are January, March and December.

When does it snow the most in McComb?

The months with the most snowfall in McComb, Mississippi, are January and December, with an average 0.12" (3mm) of accumulated snow.

How many days does it snow in McComb?

In McComb, during the entire year, snow falls for 1 days and aggregates up to 0.28" (7mm) of snow.

What are the months with the lowest UV index in McComb?

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

What are the most humid months in McComb?

The months with the highest humidity in McComb, Mississippi, are February and December, with an average relative humidity of 82%.

When it does not snow in McComb?

February, April through November are months without snowfall in McComb.

What are the months with the least sunshine in McComb?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in McComb, Mississippi.

When is Daylight Saving Time (DST) in McComb?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in McComb, Mississippi, 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.

When are the longest days in McComb?

The month with the longest days is June, with an average of 14h and 6min of daylight.

What month has the most sunshine in McComb?

The month with the most sunshine in McComb, Mississippi, is June, with an average of 10.4h of sunshine.

When is the highest UV index in McComb?

June through August, with an average maximum UV index of 7, are months with the highest UV index in McComb.

What is the warmest month in McComb?

McComb's warmest month, July, registers temperatures that range from a high of 90.9°F (32.7°C) to a low of 72.1°F (22.3°C).

What is the wettest month in McComb?

August is the month with the most rainfall in McComb. Rain falls for 18.9 days and accumulates 2.6" (66mm) of precipitation.

What is the least humid month in McComb?

October is the least humid month in McComb, with an average relative humidity of 72%.

What is the driest month in McComb?

November is the month with the least rainfall. Rain falls for 6.9 days and accumulates 0.79" (20mm) of precipitation.

What is the month with the shortest days in McComb?

The month with the shortest days is December, with an average of 10h and 12min of daylight.

Average temperature
McComb, MS

Average temperature - McComb, MS

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (56.7°F).

The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

Average pressure
McComb, MS

Average pressure - McComb, MS

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed
McComb, MS

Average wind speed - McComb, MS

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity
McComb, MS

Average humidity - McComb, MS

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall
McComb, MS

Average rainfall - McComb, MS

The wettest month (with the highest rainfall) is August (2.6").
The driest month (with the least rainfall) is November (0.79").

Average rainfall days
McComb, MS

Average rainfall days - McComb, MS

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (6.9 days).

Average snowfall
McComb, MS

Average snowfall - McComb, MS

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are February, April, May, June, July, August, September, October and November (0").

Average snowfall days
McComb, MS

Average snowfall days - McComb, MS

The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight / Average sunshine
McComb, MS

Average daylight / Average sunshine - McComb, MS

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days
McComb, MS

Average sunshine days - McComb, MS

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (8.9 days).

Average UV index
McComb, MS

Average UV index - McComb, MS

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average visibility
McComb, MS

Average visibility - McComb, MS

The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).

McComb, Mississippi, USA

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