The climate of Slidell
The climate of
Slidell,
Louisiana, falls under the Cfa category according to the Köppen climate classification. This classification corresponds to an overall humid subtropical climate where there is no dry season, pertained to southern United States and mostly along its Gulf Coast. A weather pattern that is characterized by hot and humid summer and mild to cool winter prevails in Slidell.
Throughout the year, the climate in Slidell fluctuates noticeably, with temperatures ranging from 45.1°F (7.3°C) to 90.9°F (32.7°C).
July and
August are the warmest months, with the average high temperature hovering around 90°F (32.2°C). On the other hand, from
December to
February, the city experiences its lowest temperatures, going down to about 45.1°F (7.3°C).
It's worth noting that Slidell gets a wet season, particularly in summer, marked by significantly high rainfall. The maximum amount that the city receives is from 4.41" (112mm) to 4.92" (125mm) between July and August. Rainfall is relatively less from
November to
March, with February being the driest month receiving just around 1.5" (38mm).
The Best Time to Visit Slidell
Considering the climate profile, the time between
March and
May is deemed the most propitious for visitation. During this period, the weather remains pleasantly warm with temperatures fluctuating between 64°F (17.8°C) and 83.8°F (28.8°C). Rainfall is relatively moderate in spring, ranging from 1.61" (41mm) to 2.68" (68mm), making it ideal for outdoor activities.
The Worst Time to Visit Slidell
June through
September might be less desirable for tourists due to considerably hot and humid conditions. Moreover,
July and
August experience high precipitation levels, reaching up to 4.92" (125mm), affecting outdoor activities.
Spring Weather in Slidell
In
Slidell, spring runs from
March to
May. It is a period of comfortable temperatures, with highs ranging from 64°F (17.8°C) to 83.8°F (28.8°C). Relative humidity in spring stays about 74% to 75%. Rainfall ranges from 1.61" (41mm) to 2.68" (68mm), and the sun shines approximately between 7.9 hours to 10.6 hours a day.
Summer Weather in Slidell
During summer, ranging from
June to
August,
Slidell observes some of its highest temperatures, soaring up to 90°F (32.2°C). Humidity also remains high at around 73% to 74% during this period. Rainfall reaches its peak, oscillating between 2.99" (76mm) and 4.92" (125mm). On average, sunlight persists for around 10.6 to 11.1 hours daily.
Autumn Weather in Slidell
Autumn, from
September to
November, sees a gradual relief from the summer heat. Temperatures during this period drop to a more comfortable range, from 68.4°F (20.2°C) to 87.3°F (30.7°C). Rainfall tends to significantly decrease, with levels falling from 2.4" (61mm) in September to 1.5" (38mm) by November. Daily sunshine hours also reduce, from 10.3 hours to about 6.1 hours by the end of autumn.
Winter Weather in Slidell
Winter in
Slidell, which spans from
December to
February, is marked by the coolest temperatures of the year. The average high ranges from 59.4°F (15.2°C) to 70.7°F (21.5°C), while the lowest temperature hits around 49.5°F (9.7°C) in December. Despite the cool temperatures, Slidell experiences little to no snowfall during winter, with precipitation primarily occurring in the form of rain, fluctuating from 1.73" (44mm) to 2.68" (68mm). These months receive the least amount of sunshine: around 5.1 hours to 5.7 hours per day.
Weather in January
The start of the year in
Slidell,
Louisiana brings about mild yet humid conditions. Winters here are known for relatively mild temperatures, with
January's average high reaching up to 59.4°F (15.2°C) and average lows around 45.1°F (7.3°C).
Weather in January »Weather in February
Light intensifies as daylight hours start to increase gradually from
January, marking the slow transition from winter to spring. Compared to January, the average high temperature rises slightly to 64°F (17.8°C), and the average low to 49.8°F (9.9°C), signaling the onset of warmer days.
Weather in February »Weather in March
The transformation from winter to spring becomes apparent in
March, with average maximum temperatures hitting 70.7°F (21.5°C) and a significant increase in sunshine hours. Despite an increase in daylight, there's a slight rise in rainfalls, with March seeing 1.61" (41mm) of precipitation over 13 days.
Weather in March »
Weather in April
April stands out in
Slidell,
Louisiana, as it brings about a marked increase in sun exposure and a continued rise in temperature. There's a clear shift towards a more summery climate with the average maximum temperature now touching 77.4°F (25.2°C).
Weather in April » Weather in May
Towards the end of spring,
May is a month characterized by warm and slightly humid weather. There's a significant jump in temperature from
April to May, as the maximum average temperature reaches a sizzling 83.8°F (28.8°C). This rise in temperature signals the early arrival of summer.
Weather in May »Weather in June
June represents the official commencement of summer in
Slidell,
Louisiana, with temperature averages soaring up to a high of 90°F (32.2°C) while humidity remains steady at 73%. An escalated level of sunlight with 14.1 daylight hours adds to warmer climate conditions.
Weather in June »
Weather in July
July continues the summer rhythm, proceeding to be one of the warmest months in
Slidell,
Louisiana. However, the highest temperature for the year prevails during this month, with the mercury touching a high of 90.9°F (32.7°C). Despite the heat, July does not miss out on rain, with cumulatively the most substantial rainfall experienced over the year.
Weather in July » Weather in August
The warmth continues into
August, with practically no change from the high temperatures of
July. From a climatological perspective, it's intriguing to observe that despite the slight dip in average high temperatures to 90.7°F (32.6°C), the average low increases to 77.4°F (25.2°C).
Weather in August »Weather in September
September in
Slidell,
Louisiana, comes with a slight relief from high temperatures. The average high temperature drops to 87.3°F (30.7°C), indicating the descent into fall. Though the temperature starts to cool down, humidity remains high at 75%.
Weather in September »
Weather in October
October experiences more drastic changes in
Slidell,
Louisiana, signaling the heart of fall. Specifically, the drop in temperature from
September is quite noticeable, with average highs reducing to 79.3°F (26.3°C). A drop in humidity down to 70% implies drier air, making the weather more comfortable.
Weather in October » Weather in November
Slidell,
Louisiana, in
November observes cooler temperatures and crisp nights. The average high temperature further recoils to 68.4°F (20.2°C) while the visible sun falls to 10.6 hours per day. Decreasing temperatures, lowering rainfall, and lesser sunshine hours depicts a smooth transition into winters.
Weather in November » Weather in December
December concludes the year in
Slidell,
Louisiana, with a cold snap. The average high temperature cools down to 62.1°F (16.7°C), indicating the arrival of winter. It is noteworthy that Slidell experiences 6 miles of visibility consistently throughout the year, indicating a relatively clear environment.
Weather in December »