Duncan
Oklahoma, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Duncan, OK

January, like December, in Duncan, Oklahoma, is another fresh winter month, with temperature in the range of an average high of 52°F (11.1°C) and an average low of 28.9°F (-1.7°C). With an average high-temperature of 52°F (11.1°C) and an average low-temperature of 28.9°F (-1.7°C), January is the coldest month. Weather in January »
February, the last month of the winter, in Duncan, is a moderate month, with average temperature varying between 33.1°F (0.6°C) and 57°F (13.9°C). In February, the average high-temperature is practically the same as in January - a mild 57°F (13.9°C). Weather in February »

March, the first month of the spring, in Duncan, is a comfortable month, with average temperature varying between 39.9°F (4.4°C) and 64.9°F (18.3°C). In Duncan, Oklahoma, the average high-temperature slightly increases, from a mild 57°F (13.9°C) in February, to a comfortable 64.9°F (18.3°C). Weather in March »

April in Duncan, Oklahoma, is a warm spring month, with temperature in the range of an average high of 75.9°F (24.4°C) and an average low of 51.1°F (10.6°C). In Duncan, the average high-temperature in April increases, from a comfortable 64.9°F (18.3°C) in March, to a moderately hot 75.9°F (24.4°C). Weather in April »

The last month of the spring, May, is another warm month in Duncan, Oklahoma, with average temperature varying between 59°F (15°C) and 82°F (27.8°C). In May, the average high-temperature slightly increases, from a warm 75.9°F (24.4°C) in April, to a still moderately hot 82°F (27.8°C). Weather in May »

June, the first month of the summer, in Duncan, is a tropical month, with average temperature ranging between max 90°F (32.2°C) and min 68°F (20°C). In Duncan, the average high-temperature in June marginally rises, from a warm 82°F (27.8°C) in May, to a hot 90°F (32.2°C). Weather in June »

July is a torrid summer month in Duncan, Oklahoma, with temperature in the range of an average low of 71.1°F (21.7°C) and an average high of 95°F (35°C). In Duncan, the average high-temperature is relatively the same as in June - a sweltering 95°F (35°C). Weather in July »

August, the last month of the summer, in Duncan, is another very hot month, with average temperature fluctuating between 96.1°F (35.6°C) and 71.1°F (21.7°C). August is the warmest month, with an average high-temperature of 96.1°F (35.6°C) and an average low-temperature of 71.1°F (21.7°C). Weather in August »

September, the first month of the autumn, in Duncan, is also a hot month, with average temperature ranging between min 64°F (17.8°C) and max 89.1°F (31.7°C). In Duncan, the average high-temperature slightly decreases, from a very hot 96.1°F (35.6°C) in August, to a hot 89.1°F (31.7°C). Weather in September »

October, like September, in Duncan, Oklahoma, is a moderately hot autumn month, with average temperature varying between 78.1°F (25.6°C) and 53.1°F (11.7°C). In October, the average high-temperature decreases, from a tropical 89.1°F (31.7°C) in September, to a moderately hot 78.1°F (25.6°C). Weather in October »

November, the last month of the autumn, in Duncan, is another comfortable month, with average temperature fluctuating between 39°F (3.9°C) and 64°F (17.8°C). In Duncan, the average high-temperature drops, from a moderately hot 78.1°F (25.6°C) in October, to an enjoyable 64°F (17.8°C). Weather in November »

December, the first month of the winter, in Duncan, is still a cool month, with average temperature fluctuating between 55°F (12.8°C) and 32°F (0°C). In December, the average high-temperature decreases, from a comfortable 64°F (17.8°C) in November, to a fresh 55°F (12.8°C). Weather in December »

What is the coldest month in Duncan?

With an average high-temperature of 52°F (11.1°C) and an average low-temperature of 28.9°F (-1.7°C), January is the coldest month in Duncan, Oklahoma.

What is the most humid month in Duncan?

With an average relative humidity of 70%, January is the most humid month in Duncan, Oklahoma.

How many days does it rain in Duncan?

In Duncan, during the entire year, the rain falls for 60.1 days and collects up to 33.1" (840.9mm) of precipitation.

What is the driest month in Duncan?

The month with the least rainfall in Duncan, Oklahoma, is January when the rain falls for 3.5 days and typically collects 1.4" (35.6mm) of precipitation.

When does it snow in Duncan?

Months with snowfall are January through April and December.

How much does it snow in Duncan?

In Duncan, Oklahoma, during the entire year, snow aggregates up to 7" (177.8mm).

What is the snowiest month in Duncan?

February is the month with the most snowfall in Duncan, with 2.2" (55.9mm) of accumulated snow.

What is the rainiest month in Duncan?

May is the month with the most rainfall. Rain falls for 7.6 days and accumulates 6.4" (162.6mm) of precipitation.

When are the longest days in Duncan?

June has the longest days of the year in Duncan, Oklahoma, with an average of 14.4h of daylight.

What is the warmest month in Duncan?

The warmest month is August, with an average high-temperature of 96.1°F (35.6°C) and an average low-temperature of 71.1°F (21.7°C).

What is the least humid month in Duncan?

Months with the lowest humidity are August and September, with an average relative humidity of 58%.

What is the month with the shortest days in Duncan?

With an average of 9.9h of daylight, December has the shortest days of the year.
Average humidity - Duncan, OK
Average rainfall - Duncan, OK
Average rainfall days - Duncan, OK

The month with the highest number of rainy days is May (7.6 days).
The month with the lowest number of rainy days is November (2.9 days).

Average snowfall - Duncan, OK
Average daylight - Duncan, OK

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).