Climate and monthly weather forecastWashington, LA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Washington, Louisiana, is another refreshing winter month, with an average temperature fluctuating between 42.4°F (5.8°C) and 57.7°F (14.3°C). In Washington, the lowest temperatures are generally noted in January, averaging a high of 57.7°F (14.3°C) and a low of 42.4°F (5.8°C). Weather in January »Weather in February
February, the last month of the winter in Washington, is an enjoyable month, with an average temperature fluctuating between 62.6°F (17°C) and 47.5°F (8.6°C). With the onset of February, a modest change to an enjoyable 62.6°F (17°C) from January's 57.7°F (14.3°C) is noted in high-temperature. Weather in February »Weather in March
The first month of the spring, March, is a pleasant month in Washington, Louisiana, with an average temperature varying between 70.5°F (21.4°C) and 52.7°F (11.5°C). Washington observes a slight uplift in the average high-temperature with the onset of March, adjusting from February's comfortable 62.6°F (17°C) to a pleasant 70.5°F (21.4°C). Weather in March »Weather in April
April is a moderately hot spring month in Washington, Louisiana, with an average temperature varying between 77.5°F (25.3°C) and 58.5°F (14.7°C). Washington experiences a minor temperature shift with the start of April, with average high-temperatures moving from an agreeable 70.5°F (21.4°C) in March to a moderately hot 77.5°F (25.3°C). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Washington, Louisiana, with an average temperature ranging between min 65.8°F (18.8°C) and max 84.6°F (29.2°C). May's arrival is noted with a slight increase in the average high-temperature, moving from a moderately hot 77.5°F (25.3°C) in April to a still warm 84.6°F (29.2°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Washington, Louisiana, with an average temperature fluctuating between 89.4°F (31.9°C) and 71.8°F (22.1°C). Entering June, the average high-temperature is recorded at a hot 89.4°F (31.9°C), exhibiting a minimal shift from May's 84.6°F (29.2°C). Weather in June »Weather in July
July, like June, is a hot summer month in Washington, Louisiana, with an average temperature ranging between min 73.2°F (22.9°C) and max 90.3°F (32.4°C). In Washington, temperatures reach their average annual highs in July, measuring 90.3°F (32.4°C) and a minimum average of 73.2°F (22.9°C). The heat index value for July is appraised at a blazing hot 114.8°F (46°C). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Washington, Louisiana, with an average temperature varying between 90.1°F (32.3°C) and 73.8°F (23.2°C). August begins with an average high-temperature of a still hot 90.1°F (32.3°C), reflecting close similarity to the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in Washington, Louisiana, with temperature in the range of an average low of 69.6°F (20.9°C) and an average high of 86.9°F (30.5°C). September's arrival registers an average high-temperature of a still hot 86.9°F (30.5°C), closely aligning with the temperature of the previous month. Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Washington, Louisiana, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 59.9°F (15.5°C). The start of October signals a gentle decrease in the average high-temperature, transitioning from a tropical 86.9°F (30.5°C) in September to a moderately hot 79.5°F (26.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another refreshing month in Washington, Louisiana, with an average temperature ranging between min 50.5°F (10.3°C) and max 67.6°F (19.8°C). A decrease in the average high-temperature is observed during November, shifting from a moderately hot 79.5°F (26.4°C) in October to a comfortable 67.6°F (19.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a refreshing month in Washington, Louisiana, with an average temperature varying between 46.2°F (7.9°C) and 60.6°F (15.9°C). December signifies a gentle decline in Washington's average high-temperature, easing from a comfortable 67.6°F (19.8°C) in November to a mild 60.6°F (15.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Washington, LA
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (57.7°F).
The month with the highest average low temperature is August (73.8°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure
Washington, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.96"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 month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Washington, LA
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.9mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
5mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6mph - Average wind speed in November:
6.7mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity
Washington, LA
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Washington, LA
- Average rainfall in January:
0.98" - Average rainfall in February:
0.63" - Average rainfall in March:
0.63" - Average rainfall in April:
0.83" - Average rainfall in May:
0.94" - Average rainfall in June:
1.14"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.57" - Average rainfall in September:
0.75" - Average rainfall in October:
0.91" - Average rainfall in November:
0.71" - Average rainfall in December:
0.98"
The wettest months (with the highest rainfall) are July and August (1.57").
The driest months (with the least rainfall) are February and March (0.63").
Average rainfall days
Washington, LA
- Average rainfall days in January:
7.6 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
8.8 days - Average rainfall days in May:
10.1 days - Average rainfall days in June:
14 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
7.9 days - Average rainfall days in November:
6.6 days - Average rainfall days in December:
9.1 days
The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is November (6.6 days).
Average snowfall
Washington, LA
The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days
Washington, LA
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0.2 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 month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Washington, LA
- Average daylight in January:
10h and 24min - Average daylight in February:
11h and 6min - 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 6min
- Average daylight in July:
13h and 54min - 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 36min - Average daylight in December:
10h and 12min
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 18min - Average sunshine in February:
5h and 12min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 42min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 24min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days
Washington, LA
- Average sunshine days in January:
21.5 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
18.8 days - Average sunshine days in April:
19.7 days - Average sunshine days in May:
18.3 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
10.7 days - Average sunshine days in September:
13.8 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
21.9 days - Average sunshine days in December:
19.8 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is August (10.7 days).
Average UV index
Washington, 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 cloud cover
Washington, LA
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility
Washington, LA
The months with the highest visibility are January, February, October, November and December (6mi).
The months with the lowest visibility are March, April, May, June, July, August and September (5mi).





