Climate and monthly weather forecast
Grimes, LA

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Weather in January

January, the same as December, is another fresh winter month in Grimes, Louisiana, with an average temperature varying between 39.2°F (4°C) and 53.1°F (11.7°C). Grimes's coldest weather arrives in January, when temperatures average a high of 53.1°F (11.7°C) and a low of 39.2°F (4°C). Weather in January »

Weather in February

February, the last month of the winter in Grimes, is a moderate month, with an average temperature ranging between max 57.2°F (14°C) and min 42.6°F (5.9°C). The beginning of February records an average high-temperature of a mild 57.2°F (14°C), almost echoing the conditions of the previous month. Weather in February »

Weather in March

March, the first month of the spring in Grimes, is an enjoyable month, with an average temperature fluctuating between 49.1°F (9.5°C) and 65.7°F (18.7°C). Grimes's weather shows a minor temperature rise with the arrival of March, moving from a moderate 57.2°F (14°C) in February to a still refreshing 65.7°F (18.7°C). Weather in March »

Weather in April

April is a moderately hot spring month in Grimes, Louisiana, with an average temperature fluctuating between 56.1°F (13.4°C) and 74.3°F (23.5°C). April introduces a minor temperature shift, with average high-temperatures adjusting from March's enjoyable 65.7°F (18.7°C) to a warm 74.3°F (23.5°C). Weather in April »

Weather in May

The last month of the spring, May, is also a moderately hot month in Grimes, Louisiana, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 64.9°F (18.3°C). Grimes's May weather indicates a minor ascent in high-temperatures, adjusting from a moderately hot 74.3°F (23.5°C) in April to a still warm 82.4°F (28°C). Weather in May »

Weather in June

June, the first month of the summer in Grimes, is a hot month, with an average temperature fluctuating between 89.8°F (32.1°C) and 72.1°F (22.3°C). As Grimes transitions into June, a marginal rise in the average high-temperature is observed, moving from a warm 82.4°F (28°C) in May to a hot 89.8°F (32.1°C). Weather in June »

Weather in July

July, like June, is another hot summer month in Grimes, Louisiana, with temperature in the range of an average low of 73.4°F (23°C) and an average high of 91°F (32.8°C). Grimes's July weather, marked by an average high temperature of 91°F (32.8°C) and an average low temperature of 73.4°F (23°C), is the warmest in the year. July's average heat index is evaluated at a blazing hot 113°F (45°C). Weather in July »

Weather in August

The last month of the summer, August, is another tropical month in Grimes, Louisiana, with an average temperature ranging between min 72.7°F (22.6°C) and max 90.3°F (32.4°C). The shift into August finds Grimes at an average high-temperature of a still tropical 90.3°F (32.4°C), closely comparable to July's conditions. Weather in August »

Weather in September

The first month of the autumn, September, is still a hot month in Grimes, Louisiana, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 67.8°F (19.9°C). An average high-temperature of a still tropical 86.9°F (30.5°C) marks September, exhibiting a close resemblance to the conditions in August. Weather in September »

Weather in October

October, like September, in Grimes, Louisiana, is a moderately hot autumn month, with an average temperature varying between 76.5°F (24.7°C) and 58.1°F (14.5°C). Grimes in October demonstrates a small temperature transition, adjusting from an average high of a hot 86.9°F (30.5°C) in September to a moderately hot 76.5°F (24.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in Grimes, Louisiana, with an average temperature ranging between max 63.5°F (17.5°C) and min 47.7°F (8.7°C). In Grimes, the average high-temperature in November drops from a warm 76.5°F (24.7°C) in October to an enjoyable 63.5°F (17.5°C). Weather in November »

Weather in December

December, the first month of the winter in Grimes, is still a refreshing month, with an average temperature ranging between max 55.9°F (13.3°C) and min 43°F (6.1°C). December's arrival signals a moderate reduction in the average high-temperature, easing from a comfortable 63.5°F (17.5°C) in November to a still refreshing 55.9°F (13.3°C). Weather in December »
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The coldest time of the year in Grimes is January, with temperatures averaging a high of 53.1°F (11.7°C) and a low of 39.2°F (4°C).

How much does it rain?

Throughout the year, there are 158.9 rainfall days, and 37.28" (947mm) of precipitation is accumulated.

When does it snow in Grimes?

Months with snowfall in Grimes are January through March.

When does it snow the most?

The months with the most snowfall are January and February, with an average 0.16" (4mm) of accumulated snow.

How many days does it snow?

Throughout the year, there are 2.2 snowfall days, and 0.43" (11mm) of snow is accumulated.

When is the lowest UV index?

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

What is the most humid month?

February is the most humid month, with an average relative humidity of 80%.

What is the month with the least sunshine?

With an average of 4.9h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST)?

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.

What is the wettest month?

The month with the most rainfall is April, when the rain falls for 13.1 days and typically aggregates up to 4.41" (112mm) of precipitation.

When it does not snow?

April through December are months without snowfall.

When are the longest days?

With an average of 14h and 18min of daylight, June has the longest days of the year.

What month has the most sunshine?

With an average of 10.7h of sunshine, June has the most sunshine of the year.

What are the months with the highest UV index?

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

What are the warmest months?

Grimes witnesses the warmest weather in July, with temperatures averaging a high of 91°F (32.8°C) and a low of 73.4°F (23°C).

What is the driest month?

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.85" (47mm) of precipitation.

What is the least humid month?

The least humid month is October, with an average relative humidity of 67%.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

Average temperature
Grimes, LA

Average temperature - Grimes, LA

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.1°F).

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure
Grimes, LA

Average pressure - Grimes, LA

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
Grimes, LA

Average wind speed - Grimes, LA

The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity
Grimes, LA

Average humidity - Grimes, LA

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (67%).

Average rainfall
Grimes, LA

Average rainfall - Grimes, LA

The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days
Grimes, LA

Average rainfall days - Grimes, LA

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.5 days).

Average snowfall
Grimes, LA

Average snowfall - Grimes, LA

The months with the highest snowfall are January and February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days
Grimes, LA

Average snowfall days - Grimes, LA

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Grimes, LA

Average daylight / Average sunshine - Grimes, LA

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days
Grimes, LA

Average sunshine days - Grimes, LA

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.2 days).

Average UV index
Grimes, LA

Average UV index - Grimes, LA

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
Grimes, LA

Average visibility - Grimes, LA

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

Grimes, Louisiana, USA

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