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Contents
- 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
Weather in January
January, the same as December, in Grand River, Louisiana, is a moderate winter month, with an average temperature varying between 43.5°F (6.4°C) and 59°F (15°C). In Grand River, January is the month with the lowest recorded average temperatures, measuring a high of 59°F (15°C) and a low of 43.5°F (6.4°C). Weather in January »
Weather in February
February, the last month of the winter in Grand River, is a comfortable month, with temperature in the range of an average low of 48.4°F (9.1°C) and an average high of 64°F (17.8°C). The ushering in of February brings an average high-temperature of a comfortable 64°F (17.8°C), closely mirroring the 59°F (15°C) of January. Weather in February »
Weather in March
The first month of the spring, March, is a pleasant month in Grand River, Louisiana, with an average temperature varying between 71.4°F (21.9°C) and 53.8°F (12.1°C). In Grand River, the onset of March comes with a modest high-temperature shift, transitioning from February's enjoyable 64°F (17.8°C) to a pleasant 71.4°F (21.9°C). Weather in March »
Weather in April
April in Grand River, Louisiana, is a warm spring month, with an average temperature fluctuating between 58.8°F (14.9°C) and 78.4°F (25.8°C). April's arrival coincides with a marginal rise in the average high-temperature, moving from March's agreeable 71.4°F (21.9°C) to a moderately hot 78.4°F (25.8°C). Weather in April »
Weather in May
The last month of the spring, May, is also a moderately hot month in Grand River, Louisiana, with an average temperature fluctuating between 66.4°F (19.1°C) and 85.3°F (29.6°C). May's onset is marked by a subtle temperature increase, moving from a moderately hot 78.4°F (25.8°C) in April to a still warm 85.3°F (29.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in Grand River, Louisiana, with an average temperature ranging between min 72.3°F (22.4°C) and max 90.7°F (32.6°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's warm 85.3°F (29.6°C) to a hot 90.7°F (32.6°C). Weather in June »
Weather in July
July, the same as June, in Grand River, Louisiana, is a hot summer month, with an average temperature ranging between min 74.1°F (23.4°C) and max 91.2°F (32.9°C). During July and August, Grand River registers its highest temperatures, averaging a high of 91.2°F (32.9°C). July's mean heat index is estimated at a life-threatening hot 116.6°F (47°C). Weather in July »
Weather in August
August, the last month of the summer in Grand River, is another hot month, with an average temperature ranging between max 91.2°F (32.9°C) and min 74.5°F (23.6°C). Grand River's peak temperatures tend to occur in July and August, with an average high-temperature of 91.2°F (32.9°C). The heat index value during August is estimated at a blazing hot 116.6°F (47°C). Weather in August »
Weather in September
September, the first month of the autumn in Grand River, is also a hot month, with an average temperature ranging between min 70.3°F (21.3°C) and max 87.3°F (30.7°C). September's presence marks an average high-temperature of a still hot 87.3°F (30.7°C), subtly varied from August's 91.2°F (32.9°C). Weather in September »
Weather in October
October, like September, in Grand River, Louisiana, is another warm autumn month, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 79.9°F (26.6°C). The average high-temperature shows a slight dip in October, from September's tropical 87.3°F (30.7°C) to a warm 79.9°F (26.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Grand River, is another pleasant month, with an average temperature varying between 51.1°F (10.6°C) and 68.9°F (20.5°C). The transition into November involves a decrease in the average high-temperature, falling from a warm 79.9°F (26.6°C) in October to an agreeable 68.9°F (20.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a refreshing month in Grand River, Louisiana, with an average temperature fluctuating between 47.3°F (8.5°C) and 61.9°F (16.6°C). The onset of December entails a subtle temperature shift, as the average high-temperature eases from a pleasant 68.9°F (20.5°C) in November to an enjoyable 61.9°F (16.6°C). Weather in December »
Updated: Jun 15, 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 are the coldest months?
Grand River experiences its average lowest temperatures in January, reaching a peak of 59°F (15°C) and a minimum of 43.5°F (6.4°C).
How many days does it rain?
Throughout the year, there are 148.6 rainfall days, and 15.51" (394mm) of precipitation is accumulated.
When does it snow?
January is the only month when snow falls.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 0.3 days and typically aggregates up to 0.08" (2mm) of snow.
How many days does it snow?
Throughout the year, there are 0.3 snowfall days, and 0.08" (2mm) of snow is accumulated.
What are the most humid months?
February and December, with an average relative humidity of 81%, are most humid months.
When it does not snow?
February through December are months without snowfall.
What is the driest month in Grand River?
The month with the least rainfall is March, when the rain falls for 9.8 days and typically collects 0.67" (17mm) of precipitation.
When is Daylight Saving Time (DST) in Grand River?
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.
When are the longest days?
With an average of 14h and 6min of daylight, June has the longest days of the year.
What month has the most sunshine?
With an average of 10.5h of sunshine, June has the most sunshine of the year.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 7.
What time of the year is the hottest?
July and August represent the warmest period, with an average high-temperature of 91.2°F (32.9°C).
What is the rainiest month?
The month with the most rainfall is July, when the rain falls for 19.4 days and typically aggregates up to 2.56" (65mm) of precipitation.
What is the least humid month?
The least humid month is October, with an average relative humidity of 73%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 10h and 12min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 5.1h of sunshine.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 3.
Average temperature
Grand River, LA
The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (59°F).
The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).
Average pressure
Grand River, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"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:
29.96"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed
Grand River, LA
- Average wind speed in January:
6.6mph - Average wind speed in February:
6.9mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.8mph - Average wind speed in May:
5.6mph - Average wind speed in June:
4.9mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.5mph - Average wind speed in November:
6mph - Average wind speed in December:
6.5mph
The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity
Grand River, LA
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Grand River, LA
- Average rainfall in January:
0.98" - Average rainfall in February:
1.06" - Average rainfall in March:
0.67" - Average rainfall in April:
1.34" - Average rainfall in May:
1.3" - Average rainfall in June:
1.34"
- Average rainfall in July:
2.56" - Average rainfall in August:
2.01" - Average rainfall in September:
1.18" - Average rainfall in October:
1.26" - Average rainfall in November:
0.71" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days
Grand River, LA
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
9.2 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
9.5 days - Average rainfall days in May:
12.1 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
19.4 days - Average rainfall days in August:
20.9 days - Average rainfall days in September:
16 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
7.1 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (7.1 days).
Average snowfall
Grand River, LA
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Grand River, LA
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 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 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Grand River, LA
- Average daylight in January:
10h and 3min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 4min - Average daylight in June:
14h and 1min
- Average daylight in July:
13h and 5min - Average daylight in August:
13h and 1min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 4min - Average daylight in December:
10h and 1min
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).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 2min - Average sunshine in March:
7h and 4min - Average sunshine in April:
9h and 2min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days
Grand River, LA
- Average sunshine days in January:
20.9 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
20 days - Average sunshine days in April:
18.4 days - Average sunshine days in May:
16.2 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
7.3 days - Average sunshine days in August:
7.3 days - Average sunshine days in September:
11.3 days - Average sunshine days in October:
20.1 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
17.6 days
The month with the most sunshine days is November (21.4 days).
The months with the least sunshine days are July and August (7.3 days).
Average UV index
Grand River, LA
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Grand River, LA
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility
Grand River, LA
The months with the highest visibility are January, February, June, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July, August and September (5mi).
Grand River, Louisiana, USA
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