Climate and monthly weather forecastGrand Gulf, MS
Climate and monthly weather forecast
Weather in January
January, like December, in Grand Gulf, Mississippi, is a cool winter month, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 39.7°F (4.3°C). The coldest month is January, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 39.7°F (4.3°C). Weather in January »Weather in February
The last month of the winter, February, is a moderate month in Grand Gulf, Mississippi, with an average temperature varying between 59.7°F (15.4°C) and 44.2°F (6.8°C). Grand Gulf experiences an average high-temperature of a mild 59.7°F (15.4°C) with the onset of February, subtly varied from January's 55°F (12.8°C). Weather in February »Weather in March
March, the first month of the spring in Grand Gulf, is a pleasant month, with an average temperature fluctuating between 50.2°F (10.1°C) and 68°F (20°C). March's onset brings a subtle temperature rise, moving from a refreshing 59.7°F (15.4°C) in February to an agreeable 68°F (20°C). Weather in March »Weather in April
April is a warm spring month in Grand Gulf, Mississippi, with an average temperature varying between 55.9°F (13.3°C) and 76.1°F (24.5°C). With the onset of April, Grand Gulf's weather sees a minor temperature rise, transitioning from a pleasant 68°F (20°C) in March to a warm 76.1°F (24.5°C). Weather in April »Weather in May
May, the last month of the spring in Grand Gulf, is another warm month, with an average temperature ranging between min 63.5°F (17.5°C) and max 83.8°F (28.8°C). The arrival of May signals a slight increase in the average high-temperature, moving from a moderately hot 76.1°F (24.5°C) in April to a still warm 83.8°F (28.8°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Grand Gulf, Mississippi, with temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 90.3°F (32.4°C). June's onset brings a minor rise in the average high-temperature, moving from a moderately hot 83.8°F (28.8°C) in May to a hot 90.3°F (32.4°C). Weather in June »Weather in July
July, like June, is another tropical summer month in Grand Gulf, Mississippi, with temperature in the range of an average high of 91.9°F (33.3°C) and an average low of 72.7°F (22.6°C). Grand Gulf experiences a recorded average high-temperature of a still hot 91.9°F (33.3°C) in July, closely aligned with June's 90.3°F (32.4°C). Weather in July »Weather in August
August, the last month of the summer in Grand Gulf, is also a hot month, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 92.1°F (33.4°C). August, noted for its average high-temperature of 92.1°F (33.4°C) and an average low-temperature of 72.1°F (22.3°C), is considered the warmest month. During August, the heat index is evaluated at a burning hot 116.6°F (47°C). Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in Grand Gulf, Mississippi, with an average temperature ranging between max 88.2°F (31.2°C) and min 67.6°F (19.8°C). In September, the average high-temperature registers at a still hot 88.2°F (31.2°C), nearly identical to August's 92.1°F (33.4°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Grand Gulf, Mississippi, with an average temperature fluctuating between 78.1°F (25.6°C) and 57.2°F (14°C). Transition into October marks a drop in the average high-temperature, moving from a tropical 88.2°F (31.2°C) in September to a warm 78.1°F (25.6°C). Weather in October »Weather in November
November, the last month of the autumn in Grand Gulf, is another refreshing month, with temperature in the range of an average high of 65.5°F (18.6°C) and an average low of 47.5°F (8.6°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's moderately hot 78.1°F (25.6°C) to an enjoyable 65.5°F (18.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderate month in Grand Gulf, Mississippi, with an average temperature ranging between max 58.1°F (14.5°C) and min 43.7°F (6.5°C). The onset of December entails a subtle temperature shift, as the average high-temperature eases from a refreshing 65.5°F (18.6°C) in November to a mild 58.1°F (14.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grand Gulf, MS
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is January (55°F).
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure
Grand Gulf, MS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"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
Grand Gulf, MS
- Average wind speed in January:
7.4mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.4mph - Average wind speed in April:
7.3mph - Average wind speed in May:
6mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
5mph - Average wind speed in September:
5mph - Average wind speed in October:
6.1mph - Average wind speed in November:
6.7mph - Average wind speed in December:
7.1mph
The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity
Grand Gulf, MS
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Grand Gulf, MS
- Average rainfall in January:
1.93" - Average rainfall in February:
1.69" - Average rainfall in March:
1.89" - Average rainfall in April:
2.09" - Average rainfall in May:
1.97" - Average rainfall in June:
1.89"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.83" - Average rainfall in September:
1.73" - Average rainfall in October:
1.57" - Average rainfall in November:
1.22" - Average rainfall in December:
1.85"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days
Grand Gulf, MS
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
11.1 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
10.6 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
17.4 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
6.9 days - Average rainfall days in November:
7.3 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is October (6.9 days).
Average snowfall
Grand Gulf, MS
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Grand Gulf, MS
- Average snowfall days in January:
0.7 days - Average snowfall days in February:
0.5 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 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:
0.1 days - Average snowfall days in December:
0.3 days
The month with the highest number of snowfall days is January (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Grand Gulf, MS
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 12min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 6min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days
Grand Gulf, MS
- Average sunshine days in January:
19.5 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
16.9 days - Average sunshine days in April:
17.3 days - Average sunshine days in May:
16.1 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
11 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
22.6 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is August (11 days).
Average UV index
Grand Gulf, 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 cloud cover
Grand Gulf, MS
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility
Grand Gulf, MS
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).





