Climate and monthly weather forecastDennis, MS
Climate and monthly weather forecast
Weather in January
January, the same as December, in Dennis, Mississippi, is another chilly winter month, with an average temperature varying between 33.3°F (0.7°C) and 48°F (8.9°C). January, on average, is the coldest month, registering a high temperature of 48°F (8.9°C) and a low of 33.3°F (0.7°C). Weather in January »Weather in February
The last month of the winter, February, is a fresh month in Dennis, Mississippi, with an average temperature fluctuating between 53.1°F (11.7°C) and 37.6°F (3.1°C). In February, Dennis notes an average high-temperature of a fresh 53.1°F (11.7°C), hardly different from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a comfortable month in Dennis, Mississippi, with an average temperature varying between 44.2°F (6.8°C) and 61.3°F (16.3°C). With the beginning of March, Dennis's average high-temperature sees a minor increase, transitioning from a fresh 53.1°F (11.7°C) in February to an enjoyable 61.3°F (16.3°C). Weather in March »Weather in April
April is a pleasant spring month in Dennis, Mississippi, with an average temperature fluctuating between 51.8°F (11°C) and 70.9°F (21.6°C). The start of April brings a rise in the average high-temperature, moving from a refreshing 61.3°F (16.3°C) in March to an agreeable 70.9°F (21.6°C). Weather in April »Weather in May
May, the last month of the spring in Dennis, is a warm month, with an average temperature varying between 60.1°F (15.6°C) and 79.5°F (26.4°C). As May sets, the average high-temperature shows a slight increase, moving up from a pleasant 70.9°F (21.6°C) in April to a warm 79.5°F (26.4°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Dennis, Mississippi, with an average temperature ranging between min 67.6°F (19.8°C) and max 87.4°F (30.8°C). Dennis's transition into June sees a mild rise in the average high-temperature, edging from a warm 79.5°F (26.4°C) in May to a tropical 87.4°F (30.8°C). Weather in June »Weather in July
July, the same as June, in Dennis, Mississippi, is a hot summer month, with an average temperature varying between 69.8°F (21°C) and 90°F (32.2°C). Dennis's temperatures tend to reach their peak averages in July, with a high of 90°F (32.2°C) and a low of 69.8°F (21°C). The heat index in July is estimated at an extremely hot 109.4°F (43°C). Weather in July »Weather in August
August, the last month of the summer in Dennis, is another tropical month, with an average temperature ranging between max 89.1°F (31.7°C) and min 69.3°F (20.7°C). The transition from July to August sees average high-temperatures adjusting to a still tropical 89.1°F (31.7°C), from a not significantly different 90°F (32.2°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Dennis, Mississippi, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 64°F (17.8°C). The transition into September shows a subtle variation to a warm 84°F (28.9°C) from August's 89.1°F (31.7°C) in the average high-temperature. Weather in September »Weather in October
October, like September, is an agreeable autumn month in Dennis, Mississippi, with an average temperature varying between 52.5°F (11.4°C) and 72.3°F (22.4°C). Dennis in October demonstrates a small temperature transition, adjusting from an average high of a moderately hot 84°F (28.9°C) in September to a pleasant 72.3°F (22.4°C). Weather in October »Weather in November
November, the last month of the autumn in Dennis, is also a moderate month, with an average temperature varying between 42.6°F (5.9°C) and 59.5°F (15.3°C). The onset of November brings a small change in high-temperatures, falling from a pleasant 72.3°F (22.4°C) in October to a mild 59.5°F (15.3°C). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Dennis, Mississippi, with an average temperature fluctuating between 37.9°F (3.3°C) and 52°F (11.1°C). In the transition to December, Dennis observes a minor drop in the average high-temperature, shifting from a refreshing 59.5°F (15.3°C) in November to a fresh 52°F (11.1°C). Weather in December »Updated: Feb 12, 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
The coldest period is January, when temperatures fluctuate between an average high of 48°F (8.9°C) and a low of 33.3°F (0.7°C).
Throughout the year, in Dennis, there are 169.1 rainfall days, and 38.11" (968mm) of precipitation is accumulated.
Months with snowfall in Dennis are January through March, November and December.
Throughout the year, in Dennis, Mississippi, there are 7.3 snowfall days, and 1.85" (47mm) of snow is accumulated.
February is the month with the most rainfall. Rain falls for 12.8 days and accumulates 4.13" (105mm) of precipitation.
The month with the most snowfall is February, when snow falls for 2.3 days and typically aggregates up to 0.59" (15mm) of snow.
The months with the least sunshine in Dennis are February and December, with an average of 4.6h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
April through October are months without snowfall.
With an average of 14h and 24min of daylight, June has the longest days of the year.
With an average of 10.3h of sunshine, June has the most sunshine of the year.
June and July, with an average maximum UV index of 7, are months with the highest UV index in Dennis, Mississippi.
In Dennis, the peak temperatures are generally noted in July, averaging a high of 90°F (32.2°C) and a low of 69.8°F (21°C).
The least humid month is October, with an average relative humidity of 72%.
The month with the least rainfall in Dennis is November, when the rain falls for 9.5 days and typically collects 2.28" (58mm) of precipitation.
The most humid month in Dennis, Mississippi, is December, with an average relative humidity of 80%.
With an average of 9h and 54min of daylight, December has the shortest days of the year in Dennis, Mississippi.
With an average maximum UV index of 2, December is the month with the lowest UV index.
Average temperature
Dennis, MS
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (48°F).
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure
Dennis, MS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Dennis, MS
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.6mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity
Dennis, MS
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Dennis, MS
- Average rainfall in January:
3.31" - Average rainfall in February:
4.13" - Average rainfall in March:
3.46" - Average rainfall in April:
3.43" - Average rainfall in May:
3.03" - Average rainfall in June:
2.87"
The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days
Dennis, MS
- Average rainfall days in January:
11.8 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
15.2 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
18.8 days - Average rainfall days in August:
18 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
13.2 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.5 days).
Average snowfall
Dennis, MS
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Dennis, MS
- Average snowfall days in January:
2.1 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
1.1 days - Average snowfall days in April:
0.1 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:
0.5 days - Average snowfall days in December:
1.2 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Dennis, MS
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
4h and 48min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 12min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days
Dennis, MS
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (9.8 days).
Average UV index
Dennis, MS
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Dennis, MS
The months with the most cloud cover are February and December (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility
Dennis, MS
The months with the highest visibility are February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, May and July (5mi).
