McComb, United States experiences average highs of 25°C (77°F) and lows of 16°C (61°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
McComb, United States Weather & Climate 2026
Monthly climate averages for McComb, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Aug At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.2/10
Best: March, April, May, October
UV Index
6
High
Temperature 25°C / 16°C
Feels Like 27°C / 16°C
Rainy Days 12
Rainfall 119 mm
Sunshine 9 h
Humidity 75%
Wind Speed 14 km/h
Dew Point 16°C
Snow Days 1 days
Frost Days 3 days
Hottest Month
32°C
July
Avg Low24°C
Rain20days
Coldest Month
6°C
January
Avg High15°C
Rain11days
Driest Month
6days
October
Avg High27°C
Avg Low17°C
Windiest Month
17 km/h
February (Gusts 40)
Worst Time to Visit
Consider avoiding July, August due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:59
Daylight 14.2h
Sunset 20:09
Live conditions—
McComb on the map · live conditions
McComb, United States
- Continent
- Americas
- Country
- United States
- City
- McComb
- Population
- 12.7K
- Elevation
- 129 m
- Coordinates
- 31.24°, -90.45°
Seasonal Breakdown
Spring
Mar–May
Avg High 25°C
Avg Low 15°C
Rain 11 days/mo
3/3 best months
Summer
Jun–Aug
Avg High 32°C
Avg Low 23°C
Rain 17 days/mo
Autumn
Sep–Nov
Avg High 26°C
Avg Low 16°C
Rain 8 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 17°C
Avg Low 8°C
Rain 11 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 15°C / 6°C . Feb: 19°C / 9°C . Mar: 22°C / 12°C . Apr: 24°C / 14°C . May: 28°C / 19°C . Jun: 31°C / 22°C . Jul: 32°C / 24°C . Aug: 32°C / 24°C . Sep: 31°C / 21°C . Oct: 27°C / 17°C . Nov: 21°C / 11°C . Dec: 17°C / 8°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 137 mm. Feb: 110 mm. Mar: 123 mm. Apr: 134 mm. May: 144 mm. Jun: 116 mm. Jul: 133 mm. Aug: 157 mm. Sep: 91 mm. Oct: 72 mm. Nov: 78 mm. Dec: 132 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 76%. Mar: 74%. Apr: 74%. May: 76%. Jun: 77%. Jul: 80%. Aug: 78%. Sep: 73%. Oct: 68%. Nov: 73%. Dec: 78%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 16 km/h . Feb: 17 km/h . Mar: 17 km/h . Apr: 16 km/h . May: 14 km/h . Jun: 12 km/h . Jul: 11 km/h . Aug: 11 km/h . Sep: 11 km/h . Oct: 13 km/h . Nov: 14 km/h . Dec: 15 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 7h. Mar: 8h. Apr: 10h. May: 11h. Jun: 11h. Jul: 11h. Aug: 10h. Sep: 10h. Oct: 9h. Nov: 8h. Dec: 6h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 4. Dec: UV 4.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 1 days. Feb: 0 days. Mar: 0 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 0 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 18 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 33°C | Jul · 32°C |
| Coldest month | Jan 2025 · 3°C | Jan · 6°C |
| Wettest month | May 2025 · 194 mm | Aug · 157 mm |
| Windiest month | Mar 2025 · 18 km/h | Feb · 17 km/h |
Month-by-Month Weather Table
January
Fair 
February
Good March best
Excellent April best
Excellent May best
Excellent June
Poor July
Wet August
Poor September
Good October best
Excellent November
Good December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 15°C / 6°C | 13°C / 3°C | 11days (137 mm) Wet | 6.8h Fair | 73% Muggy | 3.7 Moderate | Fair | View Details |
| February | 19°C / 9°C | 18°C / 7°C | 11days (110 mm) Wet | 6.8h Fair | 76% Humid | 4.9 Moderate | Good | View Details |
| March best | 22°C / 12°C | 22°C / 11°C | 11days (123 mm) Wet | 8.3h Good | 74% Muggy | 6.2 High | Excellent | View Details |
| April best | 24°C / 14°C | 25°C / 14°C | 10days (134 mm) Wet | 9.5h Good | 74% Muggy | 7.2 Very High | Excellent | View Details |
| May best | 28°C / 19°C | 31°C / 21°C | 12days (144 mm) Wet | 10.5h Excellent | 76% Humid | 7.8 Very High | Excellent | View Details |
| June | 31°C / 22°C | 36°C / 26°C | 15days (116 mm) Wet | 11h Excellent | 77% Humid | 8.3 Very High | Poor | View Details |
| July | 32°C / 24°C | 38°C / 28°C | 20days (133 mm) Wet | 11h Excellent | 80% Humid | 8.2 Very High | Wet | View Details |
| August | 32°C / 24°C | 37°C / 27°C | 16days (157 mm) Wet | 10.4h Excellent | 78% Humid | 7.9 Very High | Poor | View Details |
| September | 31°C / 21°C | 34°C / 24°C | 9days (91 mm) Wet | 10.1h Excellent | 73% Muggy | 6.9 High | Good | View Details |
| October best | 27°C / 17°C | 28°C / 17°C | 6days (72 mm) Good | 9.1h Good | 68% Muggy | 5.8 High | Excellent | View Details |
| November | 21°C / 11°C | 20°C / 10°C | 8days (78 mm) Wet | 7.7h Good | 73% Muggy | 4.2 Moderate | Good | View Details |
| December | 17°C / 8°C | 16°C / 6°C | 11days (132 mm) Wet | 6.3h Fair | 78% Humid | 3.6 Moderate | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit McComb are March, April, May, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for McComb, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in McComb is July, with average daytime highs of 32°C (90°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in McComb is January, with average overnight lows of 6°C (42°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in McComb is August, averaging 157mm of precipitation across 16 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in McComb runs through July, August, June, May, with the heaviest rainfall in July. Based on 10-year averages for McComb.
McComb receives approximately 107 sunshine hours per year. The sunniest month is June with around 11 hours. Based on climate data for McComb.
The least favorable months to visit McComb are July, August, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider March, April, May, October instead.
The annual average UV index in McComb is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in McComb is 75%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, McComb receives snow. Months with snowfall average 1 snow days and 1 cm (0 in) of accumulation, with about 3 frost days during winter.
Average wind speeds in McComb are 14 km/h (9 mph). The windiest month is February with peak winds reaching 17 km/h (10 mph) (gusts up to 40 km/h / 25 mph).
McComb averages 6 clear-sky days per month with overall cloud cover around 55%. The clearest skies occur in October.
The annual average dew point in McComb is 16°C (61°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
McComb has a Humid Subtropical climate, classified as Cfa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in McComb ranges from 16°C (61°F) to 27°C (81°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit McComb, with a climate score of 4.3/10. Consider visiting during March, April, May, October instead for better conditions.
For June in McComb, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 31°C (89°F) and 15 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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