Climate and monthly weather forecastSaint Thomas, LA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Saint Thomas, Louisiana, is another refreshing winter month, with an average temperature fluctuating between 44.8°F (7.1°C) and 60.1°F (15.6°C). In Saint Thomas, the lowest temperatures are generally noted in January, averaging a high of 60.1°F (15.6°C) and a low of 44.8°F (7.1°C). Weather in January »Weather in February
The last month of the winter, February, is a comfortable month in Saint Thomas, Louisiana, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 49.8°F (9.9°C). Saint Thomas's entry into February measures an average high-temperature of a still refreshing 65.1°F (18.4°C), closely parallel to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Saint Thomas, is an agreeable month, with an average temperature ranging between max 72.1°F (22.3°C) and min 54.7°F (12.6°C). With the transition into March, Saint Thomas experiences a subtle uplift in average high-temperatures, adjusting from an enjoyable 65.1°F (18.4°C) in February to an agreeable 72.1°F (22.3°C). Weather in March »Weather in April
April in Saint Thomas, Louisiana, is a moderately hot spring month, with an average temperature ranging between max 78.6°F (25.9°C) and min 59.9°F (15.5°C). The average high-temperature mildly increases in April, edging from an agreeable 72.1°F (22.3°C) in March to a warm 78.6°F (25.9°C). Weather in April »Weather in May
The last month of the spring, May, is another warm month in Saint Thomas, Louisiana, with an average temperature varying between 66.7°F (19.3°C) and 84.7°F (29.3°C). In Saint Thomas, the average high-temperature in May slightly rises, from a moderately hot 78.6°F (25.9°C) in April, to a still warm 84.7°F (29.3°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Saint Thomas, Louisiana, with an average temperature fluctuating between 89.4°F (31.9°C) and 72.9°F (22.7°C). June brings an average high-temperature of a hot 89.4°F (31.9°C), nearly identical to the preceding month. Weather in June »Weather in July
July, like June, is another hot summer month in Saint Thomas, Louisiana, with an average temperature ranging between min 74.5°F (23.6°C) and max 90.1°F (32.3°C). Saint Thomas's temperature records reveal July as the warmest month, marked by average highs of 90.1°F (32.3°C) and lows of 74.5°F (23.6°C). July's average heat index is appraised at a life-threatening hot 113°F (45°C). Weather in July »Weather in August
August, the last month of the summer in Saint Thomas, is also a hot month, with an average temperature varying between 74.8°F (23.8°C) and 90°F (32.2°C). Saint Thomas starts August with an average high-temperature of a still hot 90°F (32.2°C), a minor shift from July's 90.1°F (32.3°C). Weather in August »Weather in September
September, the first month of the autumn in Saint Thomas, is also a hot month, with an average temperature varying between 86.9°F (30.5°C) and 70.9°F (21.6°C). September's presence marks an average high-temperature of a still tropical 86.9°F (30.5°C), subtly varied from August's 90°F (32.2°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Saint Thomas, Louisiana, with an average temperature ranging between min 61.7°F (16.5°C) and max 79.7°F (26.5°C). October witnesses a gentle descent in average high-temperature, descending from September's tropical 86.9°F (30.5°C) to a moderately hot 79.7°F (26.5°C). Weather in October »Weather in November
November, the last month of the autumn in Saint Thomas, is also an agreeable month, with temperature in the range of an average high of 69.1°F (20.6°C) and an average low of 51.8°F (11°C). November comes with a decrease in the average high-temperature, falling from a moderately hot 79.7°F (26.5°C) in October to a pleasant 69.1°F (20.6°C). Weather in November »Weather in December
December, the first month of the winter in Saint Thomas, is still a comfortable month, with an average temperature varying between 48.7°F (9.3°C) and 63°F (17.2°C). Saint Thomas's December weather shows a modest shift in high-temperatures, falling from November's agreeable 69.1°F (20.6°C) to a refreshing 63°F (17.2°C). Weather in December »Updated: Aug 23, 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
January, on average, is the coldest month, registering a high temperature of 60.1°F (15.6°C) and a low of 44.8°F (7.1°C).
In Saint Thomas, during the entire year, the rain falls for 170.8 days and collects up to 30.16" (766mm) of precipitation.
Months with snowfall are January and December.
The month with the most snowfall is January, when snow falls for 0.1 days and typically aggregates up to 0.16" (4mm) of snow.
In Saint Thomas, during the entire year, snow falls for 0.2 days and aggregates up to 0.2" (5mm) of snow.
The months with the highest humidity are February, July through September and December, with an average relative humidity of 80%.
In Saint Thomas, snow does not fall in February through November.
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.
The month with the longest days is June, with an average of 14h and 0min of daylight.
June has the most sunshine of the year, with an average of 10.5h of sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
July is the warmest month of the year, registering average temperatures as high as 90.1°F (32.3°C) and as low as 74.5°F (23.6°C).
The month with the most rainfall in Saint Thomas is July, when the rain falls for 22.3 days and typically aggregates up to 4.76" (121mm) of precipitation.
With an average relative humidity of 74%, October is the least humid month.
The month with the least rainfall in Saint Thomas is November, when the rain falls for 8.5 days and typically collects 1.3" (33mm) of precipitation.
December has the shortest days of the year, with an average of 10h and 18min of daylight.
The month with the least sunshine is December, with an average of 5.1h of sunshine.
With an average maximum UV index of 3, December is the month with the lowest UV index.
Average temperature
Saint Thomas, LA
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (60.1°F).
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).
Average pressure
Saint Thomas, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"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
Saint Thomas, LA
- Average wind speed in January:
7.3mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.1mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7.1mph
The windiest months (with the highest average wind speed) are February and April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity
Saint Thomas, LA
The months with the highest relative humidity are February, July, August, September and December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Saint Thomas, LA
- Average rainfall in January:
2.01" - Average rainfall in February:
1.89" - Average rainfall in March:
1.42" - Average rainfall in April:
2.48" - Average rainfall in May:
2.44" - Average rainfall in June:
2.68"
- Average rainfall in July:
4.76" - Average rainfall in August:
4.25" - Average rainfall in September:
2.36" - Average rainfall in October:
2.32" - Average rainfall in November:
1.3" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is July (4.76").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days
Saint Thomas, LA
- Average rainfall days in January:
10.5 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
11.7 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
22.3 days - Average rainfall days in August:
22.1 days - Average rainfall days in September:
17.5 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
13 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall
Saint Thomas, LA
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days
Saint Thomas, LA
- Average snowfall days in January:
0.1 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:
0.1 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Saint Thomas, LA
- Average daylight in January:
10h and 30min - Average daylight in February:
11h and 12min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 54min - Average daylight in May:
13h and 42min - Average daylight in June:
14h and 0min
- Average daylight in July:
13h and 48min - Average daylight in August:
13h and 12min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 42min - Average daylight in December:
10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in January:
5h and 30min - Average sunshine in February:
5h and 24min - Average sunshine in March:
7h and 36min - Average sunshine in April:
9h and 24min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 54min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 6min
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
Saint Thomas, LA
- Average sunshine days in January:
18.7 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
16.5 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
6.4 days - Average sunshine days in August:
6.4 days - Average sunshine days in September:
10.1 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
15.6 days
The month with the most sunshine days is November (20.2 days).
The months with the least sunshine days are July and August (6.4 days).
Average UV index
Saint Thomas, 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
Saint Thomas, LA
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility
Saint Thomas, LA
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
