Climate and monthly weather forecastWashington, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, in Washington, Oklahoma, is a frosty winter month, with an average temperature fluctuating between 49.5°F (9.7°C) and 33.3°F (0.7°C). January, recording an average high temperature of 49.5°F (9.7°C) and a low temperature of 33.3°F (0.7°C), is Washington's coldest month. Weather in January »Weather in February
The last month of the winter, February, is a fresh month in Washington, Oklahoma, with an average temperature ranging between min 36°F (2.2°C) and max 52.3°F (11.3°C). The advent of February presents an average high-temperature of a cool 52.3°F (11.3°C), maintaining a close correlation with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is an enjoyable month in Washington, Oklahoma, with an average temperature fluctuating between 45.5°F (7.5°C) and 63.1°F (17.3°C). The shift from February to March is marked by an increase in the average high-temperature, moving from a cool 52.3°F (11.3°C) to a comfortable 63.1°F (17.3°C). Weather in March »Weather in April
April is a pleasant spring month in Washington, Oklahoma, with an average temperature ranging between max 71.1°F (21.7°C) and min 52.2°F (11.2°C). The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a refreshing 63.1°F (17.3°C) in March to an agreeable 71.1°F (21.7°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Washington, Oklahoma, with an average temperature fluctuating between 60.1°F (15.6°C) and 77.7°F (25.4°C). The onset of May introduces a subtle rise in the average high-temperature, nudging from a pleasant 71.1°F (21.7°C) in April to a moderately hot 77.7°F (25.4°C). Weather in May »Weather in June
June, the first month of the summer in Washington, is a tropical month, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 88.2°F (31.2°C). As May gives way to June, the average high-temperature displays an increase, moving from a warm 77.7°F (25.4°C) to a tropical 88.2°F (31.2°C). Weather in June »Weather in July
July, the same as June, in Washington, Oklahoma, is another tropical summer month, with an average temperature varying between 72.9°F (22.7°C) and 93°F (33.9°C). July and August are the warmest months, with an average high-temperature of 93°F (33.9°C). Throughout July, the heat index is calculated to be a blistering 111.2°F (44°C). Weather in July »Weather in August
August, the last month of the summer in Washington, is another hot month, with an average temperature varying between 93°F (33.9°C) and 71.6°F (22°C). Washington sees the highest average temperatures during the months of July and August, peaking at 93°F (33.9°C). The heat index value during August is calculated to be a scorching 107.6°F (42°C). 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 ranging between min 65.7°F (18.7°C) and max 84.7°F (29.3°C). A modest decline in the average high-temperature is seen during September, decreasing from a tropical 93°F (33.9°C) in August to a warm 84.7°F (29.3°C). Weather in September »Weather in October
October, the same as September, in Washington, Oklahoma, is an agreeable autumn month, with an average temperature ranging between min 53.4°F (11.9°C) and max 71.8°F (22.1°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 84.7°F (29.3°C) in September to an agreeable 71.8°F (22.1°C). Weather in October »Weather in November
November, the last month of the autumn in Washington, is another mild month, with an average temperature ranging between max 60.1°F (15.6°C) and min 43.2°F (6.2°C). In the transition to November, Washington observes a drop in the average high-temperature, moving from an agreeable 71.8°F (22.1°C) in October to a refreshing 60.1°F (15.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Washington, Oklahoma, with an average temperature varying between 34.7°F (1.5°C) and 49.6°F (9.8°C). Washington's transition into December involves a shift in temperature, receding from a moderate 60.1°F (15.6°C) in November to a frosty 49.6°F (9.8°C). Weather in December »Updated: Jun 4, 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
In Washington, the lowest temperatures are generally noted in January, averaging a high of 49.5°F (9.7°C) and a low of 33.3°F (0.7°C).
In Washington, during the entire year, the rain falls for 116.5 days and collects up to 24.21" (615mm) of precipitation.
Months with snowfall are January through April, November and December.
In Washington, during the entire year, snow falls for 6.5 days and aggregates up to 3.74" (95mm) of snow.
The month with the most snowfall is February, when snow falls for 2.3 days and typically aggregates up to 1.65" (42mm) of snow.
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 most humid month is May, with an average relative humidity of 76%.
May is the month with the most rainfall. Rain falls for 13.5 days and accumulates 3.54" (90mm) of precipitation.
In Washington, Oklahoma, snow does not fall in May through October.
June has the longest days of the year, with an average of 14h and 30min of daylight.
June through August, with an average maximum UV index of 7, are months with the highest UV index.
During July and August, Washington experiences its peak temperatures, averaging a high-temperature of 93°F (33.9°C).
With an average of 11.1h of sunshine, July has the most sunshine of the year.
With an average relative humidity of 60%, August is the least humid month.
November is the month with the least rainfall. Rain falls for 7 days and accumulates 0.98" (25mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 48min of daylight.
With an average of 5.9h of sunshine, December has the least sunshine of the year in Washington.
The month with the lowest UV index is December, with an average maximum UV index of 2.
Average temperature
Washington, OK
The warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (49.5°F).
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure
Washington, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"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 (29.88"Hg).
Average wind speed
Washington, OK
- Average wind speed in January:
10.6mph - Average wind speed in February:
11.1mph - Average wind speed in March:
11.6mph - Average wind speed in April:
11.7mph - Average wind speed in May:
10.2mph - Average wind speed in June:
9.3mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8.1mph - Average wind speed in September:
8.3mph - Average wind speed in October:
9.8mph - Average wind speed in November:
10.5mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity
Washington, OK
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (60%).
Average rainfall
Washington, OK
- Average rainfall in January:
1.14" - Average rainfall in February:
1.14" - Average rainfall in March:
1.73" - Average rainfall in April:
2.64" - Average rainfall in May:
3.54" - Average rainfall in June:
2.05"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is November (0.98").
Average rainfall days
Washington, OK
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
12 days - Average rainfall days in May:
13.5 days - Average rainfall days in June:
10.3 days
- Average rainfall days in July:
11.2 days - Average rainfall days in August:
11 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
7 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (5.2 days).
Average snowfall
Washington, OK
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Washington, OK
- Average snowfall days in January:
1.7 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
0.6 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
1.4 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Washington, OK
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
7h and 12min - Average sunshine in March:
7h and 18min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 12min - Average sunshine in December:
5h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days
Washington, OK
- Average sunshine days in January:
24 days - Average sunshine days in February:
18.2 days - Average sunshine days in March:
16.8 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
17.5 days
- Average sunshine days in July:
18 days - Average sunshine days in August:
17.3 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
23.2 days
The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (14.4 days).
Average UV index
Washington, OK
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 2).
Average cloud cover
Washington, OK
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility
Washington, OK
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
