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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is a wintry winter month in Washington, Missouri, with an average temperature varying between 24.1°F (-4.4°C) and 38.1°F (3.4°C). In Washington, the month of January is known for its lowest average temperatures, reaching a high of 38.1°F (3.4°C) and a low of 24.1°F (-4.4°C). Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in Washington, Missouri, with temperature in the range of an average high of 42.8°F (6°C) and an average low of 27.9°F (-2.3°C). The introduction of February notes a subtle temperature variation to a frosty 42.8°F (6°C) from January's 38.1°F (3.4°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Washington, Missouri, with an average temperature ranging between max 54.9°F (12.7°C) and min 37.6°F (3.1°C). As February gives way to March, the average high-temperature displays an increase, moving from a frosty 42.8°F (6°C) to a cool 54.9°F (12.7°C). Weather in March »
Weather in April
April is a comfortable spring month in Washington, Missouri, with an average temperature fluctuating between 66.2°F (19°C) and 46.9°F (8.3°C). April's arrival brings a change in high-temperatures, moving from a fresh 54.9°F (12.7°C) in March to a refreshing 66.2°F (19°C). Weather in April »
Weather in May
May, the last month of the spring in Washington, is a moderately hot month, with an average temperature varying between 75.7°F (24.3°C) and 56.3°F (13.5°C). The shift into May is marked by a rise in the average high-temperature, moving from April's enjoyable 66.2°F (19°C) to a warm 75.7°F (24.3°C). Weather in May »
Weather in June
June, the first month of the summer in Washington, is still a warm month, with an average temperature fluctuating between 85.6°F (29.8°C) and 64.9°F (18.3°C). The shift into June is accompanied by a temperature increase, with the average high-temperature rising from a moderately hot 75.7°F (24.3°C) in May to a still warm 85.6°F (29.8°C). Weather in June »
Weather in July
July in Washington, Missouri, is a hot summer month, with an average temperature varying between 68.2°F (20.1°C) and 88.3°F (31.3°C). With average high and low temperatures of 88.3°F (31.3°C) and 68.2°F (20.1°C) respectively, July is Washington's warmest month. The heat index for July is calculated to be a scorching 104°F (40°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Washington, Missouri, with an average temperature varying between 65.8°F (18.8°C) and 87.1°F (30.6°C). With the advent of August, Washington experiences an average high-temperature of a still hot 87.1°F (30.6°C), mirroring a close resemblance to the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Washington, is also a moderately hot month, with an average temperature fluctuating between 59.2°F (15.1°C) and 80.1°F (26.7°C). As August transitions into September, Washington sees a gentle drop in the average high-temperature, transitioning from a tropical 87.1°F (30.6°C) to a moderately hot 80.1°F (26.7°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Washington, Missouri, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 48.2°F (9°C). October weather is marked by a drop in the average high-temperature, falling from a moderately hot 80.1°F (26.7°C) in September to a refreshing 66.2°F (19°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Washington, Missouri, with an average temperature varying between 53.8°F (12.1°C) and 37.2°F (2.9°C). The onset of November coincides with a reduction in the average high-temperature, falling from an enjoyable 66.2°F (19°C) in October to a fresh 53.8°F (12.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Washington, Missouri, with an average temperature fluctuating between 43.2°F (6.2°C) and 29.7°F (-1.3°C). With December's arrival, Washington sees a decrease in average high-temperatures, moving from a fresh 53.8°F (12.1°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Washington?
In Washington, the average lowest temperatures are observed in January, with a high of 38.1°F (3.4°C) and a low of 24.1°F (-4.4°C).
How many days does it rain in Washington?
Throughout the year, there are 133.1 rainfall days, and 27.24" (692mm) of precipitation is accumulated.
When does it snow in Washington?
January through March, September, November and December are months with snowfall.
How many days does it snow in Washington?
Throughout the year, in Washington, there are 16.6 snowfall days, and 5.87" (149mm) of snow is accumulated.
What is the month with the least sunshine in Washington?
January has the least sunshine of the year in Washington, Missouri, with an average of 4.6h of sunshine.
What is the month with the lowest UV index in Washington?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the driest month in Washington?
The month with the least rainfall in Washington is February, when the rain falls for 7.1 days and typically collects 1.42" (36mm) of precipitation.
What is the snowiest month in Washington?
February is the month with the most snowfall. Snow falls for 4.9 days and accumulates 2.09" (53mm) of snow.
When is Daylight Saving Time (DST) in Washington?
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 in Washington?
The wettest months are April and May, with an average 3.23" (82mm) of rainfall.
When it does not snow in Washington?
April through August and October are months without snowfall.
What is the most humid month in Washington?
May is the most humid month in Washington, with an average relative humidity of 78%.
When are the longest days in Washington?
With an average of 14h and 48min of daylight, June has the longest days of the year.
What are the months with the most sunshine in Washington?
The months with the most sunshine in Washington, Missouri, are June and July, with an average of 10.3h of sunshine.
What are the months with the highest UV index in Washington?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the warmest month in Washington?
Washington's temperature records reveal July as the warmest month, marked by average highs of 88.3°F (31.3°C) and lows of 68.2°F (20.1°C).
What is the least humid month in Washington?
The least humid month in Washington is October, with an average relative humidity of 72%.
What is the month with the shortest days in Washington?
The month with the shortest days in Washington, Missouri, is December, with an average of 9h and 30min of daylight.
Average temperature
Washington, MO
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (38.1°F).
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure
Washington, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Washington, MO
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.7mph - Average wind speed in October:
7mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Washington, MO
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Washington, MO
- Average rainfall in January:
1.46" - Average rainfall in February:
1.42" - Average rainfall in March:
2.24" - Average rainfall in April:
3.23" - Average rainfall in May:
3.23" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.48" - Average rainfall in August:
3.03" - Average rainfall in September:
1.89" - Average rainfall in October:
2.36" - Average rainfall in November:
1.69" - Average rainfall in December:
1.57"
The wettest months (with the highest rainfall) are April and May (3.23").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days
Washington, MO
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.2 days).
Average snowfall
Washington, MO
The month with the highest snowfall is February (2.09").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days
Washington, MO
- Average snowfall days in January:
5.1 days - Average snowfall days in February:
4.9 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0.1 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:
0.1 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Washington, MO
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Washington, MO
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
16.6 days - Average sunshine days in March:
15.6 days - Average sunshine days in April:
15.5 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
15.6 days - Average sunshine days in September:
17 days - Average sunshine days in October:
19.6 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.8 days).
Average UV index
Washington, MO
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Washington, MO
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 30).
Average visibility
Washington, MO
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (6mi).
The months with the lowest visibility are May and August (5mi).
Washington, Missouri, USA
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