Climate and monthly weather forecast
Saint Joseph, LA

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Weather in January

January, the same as December, is a cool winter month in Saint Joseph, Louisiana, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 55°F (12.8°C). Saint Joseph records the coldest temperatures in January, averaging a high of 55°F (12.8°C) and a low of 40.3°F (4.6°C). Weather in January »

Weather in February

February, the last month of the winter in Saint Joseph, is a mild month, with an average temperature varying between 59.7°F (15.4°C) and 44.4°F (6.9°C). A minimal variation is noted in Saint Joseph's average high-temperature at the onset of February, reaching a mild 59.7°F (15.4°C) from January's 55°F (12.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Saint Joseph, Louisiana, with an average temperature fluctuating between 50.5°F (10.3°C) and 67.6°F (19.8°C). As Saint Joseph welcomes March, the average high-temperature displays a subtle shift, adjusting from a refreshing 59.7°F (15.4°C) in February to an enjoyable 67.6°F (19.8°C). Weather in March »

Weather in April

April in Saint Joseph, Louisiana, is a moderately hot spring month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 75.6°F (24.2°C). With the onset of April, Saint Joseph's average high-temperature experiences a slight rise, moving from March's comfortable 67.6°F (19.8°C) to a warm 75.6°F (24.2°C). Weather in April »

Weather in May

May, the last month of the spring in Saint Joseph, is another warm month, with an average temperature ranging between max 83.1°F (28.4°C) and min 64.4°F (18°C). May's arrival brings a slight change in high-temperatures, adjusting from a moderately hot 75.6°F (24.2°C) in April to a still warm 83.1°F (28.4°C). Weather in May »

Weather in June

June, the first month of the summer in Saint Joseph, is a tropical month, with an average temperature varying between 89.2°F (31.8°C) and 71.4°F (21.9°C). Saint Joseph's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's warm 83.1°F (28.4°C) to a hot 89.2°F (31.8°C). Weather in June »

Weather in July

July, the same as June, in Saint Joseph, Louisiana, is a hot summer month, with an average temperature fluctuating between 72.9°F (22.7°C) and 91.2°F (32.9°C). With average temperatures fluctuating between a high of 91.2°F (32.9°C) and a low of 72.9°F (22.7°C), July stands out as the warmest month. For July, the heat index is appraised at a burning hot 114.8°F (46°C). Weather in July »

Weather in August

August, the last month of the summer in Saint Joseph, is another tropical month, with an average temperature fluctuating between 73°F (22.8°C) and 91°F (32.8°C). The shift from July to August is characterized by an average high-temperature of a still hot 91°F (32.8°C), not significantly different from the 91.2°F (32.9°C) of July. Weather in August »

Weather in September

The first month of the autumn, September, is still a tropical month in Saint Joseph, Louisiana, with an average temperature ranging between max 87.8°F (31°C) and min 68°F (20°C). Saint Joseph observes a minor difference in average high-temperatures between August's 91°F (32.8°C) and September's 87.8°F (31°C). Weather in September »

Weather in October

October, like September, in Saint Joseph, Louisiana, is a moderately hot autumn month, with an average temperature varying between 58.1°F (14.5°C) and 77.9°F (25.5°C). The average high-temperature drops in October, from September's hot 87.8°F (31°C) to a moderately hot 77.9°F (25.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Saint Joseph, is also an enjoyable month, with an average temperature fluctuating between 65.1°F (18.4°C) and 48.4°F (9.1°C). November suggests a modest reduction in the average high-temperature, shifting from a warm 77.9°F (25.5°C) in October to an enjoyable 65.1°F (18.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a refreshing month in Saint Joseph, Louisiana, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 44.1°F (6.7°C). December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 65.1°F (18.4°C) in November to a still refreshing 58.1°F (14.5°C). Weather in December »
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is the coldest month, exhibiting average temperatures of 55°F (12.8°C) at the peak and 40.3°F (4.6°C) at the base.

How many days does it rain?

In Saint Joseph, Louisiana, during the entire year, the rain falls for 154.1 days and collects up to 35.12" (892mm) of precipitation.

When does it snow?

Months with snowfall are January through March.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 0.8 days and typically aggregates up to 0.55" (14mm) of snow.

How many days does it snow?

Throughout the year, in Saint Joseph, there are 1.6 snowfall days, and 0.91" (23mm) of snow is accumulated.

What is the month with 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?

With an average relative humidity of 81%, February is the most humid month.

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 rainiest month?

The month with the most rainfall is April, when the rain falls for 13.6 days and typically aggregates up to 3.43" (87mm) of precipitation.

When it does not snow?

In Saint Joseph, snow does not fall in April through December.

When are the longest days?

With an average of 14h and 12min of daylight, June has the longest days of the year.

What month has the most sunshine?

With an average of 10.6h of sunshine, June has the most sunshine of the year.

What are the months 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 month is the hottest?

Saint Joseph's warmest weather arrives in July, when temperatures average a high of 91.2°F (32.9°C) and a low of 72.9°F (22.7°C).

What is the least humid month?

The least humid month in Saint Joseph is October, with an average relative humidity of 69%.

What is the driest month?

November is the month with the least rainfall. Rain falls for 9.5 days and accumulates 2.13" (54mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 6min of daylight.

What is the month with the least sunshine?

With an average of 4.8h of sunshine, December has the least sunshine of the year.

Average temperature
Saint Joseph, LA

Average temperature - Saint Joseph, LA

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

Average pressure
Saint Joseph, LA

Average pressure - Saint Joseph, 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
Saint Joseph, LA

Average wind speed - Saint Joseph, LA

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).

Average humidity
Saint Joseph, LA

Average humidity - Saint Joseph, LA

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).

Average rainfall
Saint Joseph, LA

Average rainfall - Saint Joseph, LA

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days
Saint Joseph, LA

Average rainfall days - Saint Joseph, LA

The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).

Average snowfall
Saint Joseph, LA

Average snowfall - Saint Joseph, LA

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days
Saint Joseph, LA

Average snowfall days - Saint Joseph, 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, October, November and December (0 days).

Average daylight / Average sunshine
Saint Joseph, LA

Average daylight / Average sunshine - Saint Joseph, LA

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).

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days
Saint Joseph, LA

Average sunshine days - Saint Joseph, LA

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).

Average UV index
Saint Joseph, LA

Average UV index - Saint Joseph, 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
Saint Joseph, LA

Average visibility - Saint Joseph, 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).

Saint Joseph, Louisiana, USA

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