Climate and monthly weather forecastWashington, TX
Climate and monthly weather forecast
Weather in January
January, like December, is a moderate winter month in Washington, Texas, with an average temperature varying between 42.6°F (5.9°C) and 58.8°F (14.9°C). Temperature readings reach their annual highs in January, averaging 58.8°F (14.9°C) and a minimum average of 42.6°F (5.9°C). Weather in January »Weather in February
The last month of the winter, February, is a refreshing month in Washington, Texas, with an average temperature fluctuating between 63.1°F (17.3°C) and 46.9°F (8.3°C). At the onset of February, Washington records an average high-temperature of a comfortable 63.1°F (17.3°C), showing little deviation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is an agreeable month in Washington, Texas, with an average temperature ranging between max 70.3°F (21.3°C) and min 52.9°F (11.6°C). March comes with a subtle rise, with the average high-temperature adjusting from a refreshing 63.1°F (17.3°C) in February to a pleasant 70.3°F (21.3°C). Weather in March »Weather in April
April in Washington, Texas, is a moderately hot spring month, with an average temperature ranging between max 76.8°F (24.9°C) and min 58.3°F (14.6°C). April's arrival signals a modest temperature shift, moving from a pleasant 70.3°F (21.3°C) in March to a moderately hot 76.8°F (24.9°C). Weather in April »Weather in May
May, the last month of the spring in Washington, is another warm month, with an average temperature fluctuating between 65.7°F (18.7°C) and 83.8°F (28.8°C). The arrival of May witnesses a small shift in the average high-temperature, moving from a moderately hot 76.8°F (24.9°C) in April to a still warm 83.8°F (28.8°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Washington, Texas, with an average temperature fluctuating between 90.3°F (32.4°C) and 72.1°F (22.3°C). As Washington welcomes June, the average high-temperature displays a subtle shift, adjusting from a moderately hot 83.8°F (28.8°C) in May to a tropical 90.3°F (32.4°C). Weather in June »Weather in July
July, the same as June, in Washington, Texas, is another tropical summer month, with an average temperature fluctuating between 93.7°F (34.3°C) and 74.3°F (23.5°C). Washington observes a minor difference in average high-temperatures between June's 90.3°F (32.4°C) and July's 93.7°F (34.3°C). Weather in July »Weather in August
The last month of the summer, August, is a sweltering month in Washington, Texas, with an average temperature fluctuating between 74.8°F (23.8°C) and 95.5°F (35.3°C). August, with its average high-temperature of 95.5°F (35.3°C) and an average low-temperature of 74.8°F (23.8°C), holds the record as the warmest month. August's average heat index is estimated at a burning hot 122°F (50°C). Weather in August »Weather in September
The first month of the autumn, September, is still a hot month in Washington, Texas, with temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 88.7°F (31.5°C). The shift from August to September coincides with a small decrease in the average high-temperature, down to a tropical 88.7°F (31.5°C) from a torrid 95.5°F (35.3°C). Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Washington, Texas, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 60.4°F (15.8°C). As October commences, the average high-temperature shows a reduction, transitioning from a hot 88.7°F (31.5°C) in September to a moderately hot 79.5°F (26.4°C). Weather in October »Weather in November
November, the last month of the autumn in Washington, is another pleasant month, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 68.4°F (20.2°C). Onset of November comes with a temperature decline, the average high falling from a moderately hot 79.5°F (26.4°C) in October to an agreeable 68.4°F (20.2°C). Weather in November »Weather in December
December, the first month of the winter in Washington, is also a moderate month, with an average temperature fluctuating between 45.5°F (7.5°C) and 60.1°F (15.6°C). The average high-temperature slightly decreases in December, shifting from a pleasant 68.4°F (20.2°C) in November to a refreshing 60.1°F (15.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Washington, TX
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (58.8°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 (42.6°F).
Average pressure
Washington, TX
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.94"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 (29.93"Hg).
Average wind speed
Washington, TX
- Average wind speed in January:
7.8mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.1mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.1mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.4mph - Average wind speed in December:
7.6mph
The windiest months (with the highest average wind speed) are February and March (8.3mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity
Washington, TX
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (67%).
Average rainfall
Washington, TX
- Average rainfall in January:
1.93" - Average rainfall in February:
1.65" - Average rainfall in March:
2.72" - Average rainfall in April:
2.8" - Average rainfall in May:
4.29" - Average rainfall in June:
2.52"
- Average rainfall in July:
1.93" - Average rainfall in August:
2.4" - Average rainfall in September:
2.83" - Average rainfall in October:
3.11" - Average rainfall in November:
1.81" - Average rainfall in December:
2.72"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days
Washington, TX
- Average rainfall days in January:
10.7 days - Average rainfall days in February:
13.5 days - Average rainfall days in March:
14.2 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
13.5 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
16.5 days - Average rainfall days in October:
11.4 days - Average rainfall days in November:
11.9 days - Average rainfall days in December:
12.7 days
The month with the highest number of rainy days is September (16.5 days).
The month with the least rainy days is January (10.7 days).
Average snowfall
Washington, TX
The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days
Washington, TX
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0.1 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 (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Washington, TX
- Average daylight in January:
10h and 30min - 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 24min - Average sunshine in February:
6h and 0min - Average sunshine in March:
6h and 30min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
5h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days
Washington, TX
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
12 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
14.7 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
11.6 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
16 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (11 days).
Average UV index
Washington, TX
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
Washington, TX
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Washington, TX
The months with the highest visibility are January, February, March, August, September, October, November and December (6mi).
The months with the lowest visibility are April, May, June and July (5mi).





