Climate and monthly weather forecastMarietta, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, is a cool winter month in Marietta, Oklahoma, with an average temperature varying between 36°F (2.2°C) and 52.2°F (11.2°C). During the coldest month, January, temperatures average a high of 52.2°F (11.2°C) and a low of 36°F (2.2°C). Weather in January »Weather in February
February, the last month of the winter in Marietta, is a mild month, with an average temperature ranging between max 55.8°F (13.2°C) and min 38.8°F (3.8°C). Marietta registers an average high-temperature of a mild 55.8°F (13.2°C) at the commencement of February, closely related to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Marietta, is an enjoyable month, with an average temperature ranging between max 65.5°F (18.6°C) and min 47.8°F (8.8°C). March's arrival is marked by an increase in the average high-temperature, moving from a refreshing 55.8°F (13.2°C) in February to a comfortable 65.5°F (18.6°C). Weather in March »Weather in April
April in Marietta, Oklahoma, is an agreeable spring month, with an average temperature varying between 53.6°F (12°C) and 72.9°F (22.7°C). The onset of April marks a slight increase in the average high-temperature, moving from a comfortable 65.5°F (18.6°C) in March to a pleasant 72.9°F (22.7°C). Weather in April »Weather in May
May, the last month of the spring in Marietta, is a warm month, with temperature in the range of an average low of 61.5°F (16.4°C) and an average high of 79.3°F (26.3°C). May's arrival brings a modest temperature shift, moving from a pleasant 72.9°F (22.7°C) in April to a warm 79.3°F (26.3°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Marietta, Oklahoma, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 89.1°F (31.7°C). The arrival of June brings a temperature shift, with the average high-temperature escalating from a warm 79.3°F (26.3°C) in May to a hot 89.1°F (31.7°C). Weather in June »Weather in July
July, the same as June, in Marietta, Oklahoma, is another tropical summer month, with an average temperature ranging between min 73.9°F (23.3°C) and max 93.9°F (34.4°C). Marietta commences July with an average high-temperature of a still hot 93.9°F (34.4°C), maintaining a close resemblance to the previous month. Weather in July »Weather in August
August, the last month of the summer in Marietta, is another hot month, with an average temperature ranging between min 73.8°F (23.2°C) and max 94.8°F (34.9°C). Marietta's warmest month, August, generally records average temperatures ranging from a high of 94.8°F (34.9°C) to a low of 73.8°F (23.2°C). For August, the heat index is evaluated at a blistering 111.2°F (44°C). Weather in August »Weather in September
September, the first month of the autumn in Marietta, is still a hot month, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 86°F (30°C). September marks a gentle change in average high-temperature, declining from August's 94.8°F (34.9°C) to a still hot 86°F (30°C). Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Marietta, Oklahoma, with an average temperature fluctuating between 73.8°F (23.2°C) and 55.8°F (13.2°C). With October's onset, the weather shows a temperature decrease, transitioning from a tropical 86°F (30°C) in September to a moderately hot 73.8°F (23.2°C). Weather in October »Weather in November
November, the last month of the autumn in Marietta, is another comfortable month, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 62.6°F (17°C). The start of November involves a temperature drop, moving from a moderately hot 73.8°F (23.2°C) in October to a refreshing 62.6°F (17°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Marietta, Oklahoma, with an average temperature fluctuating between 37.8°F (3.2°C) and 52.7°F (11.5°C). December's onset brings a reduction in the average high-temperature, from an enjoyable 62.6°F (17°C) in November to a fresh 52.7°F (11.5°C). Weather in December »Updated: Aug 16, 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
Marietta witnesses the coldest weather in January, with temperatures averaging a high of 52.2°F (11.2°C) and a low of 36°F (2.2°C).
The months with the least rainfall are January and December Rain falls for 6.4 days and accumulates 1.42" (36mm) of rain.
Throughout the year, there are 126.9 rainfall days, and 28.23" (717mm) of precipitation is accumulated.
January through March, November and December are months with snowfall.
Throughout the year, there are 3.8 snowfall days, and 2.09" (53mm) of snow is accumulated.
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3.
The month with the most snowfall is February, when snow falls for 1.7 days and typically aggregates up to 1.22" (31mm) 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.
In Marietta, snow does not fall in April through October.
May is the most humid month, with an average relative humidity of 76%.
May is the month with the most rainfall. Rain falls for 14.6 days and accumulates 3.86" (98mm) of precipitation.
With an average of 14h and 24min of daylight, June has the longest days of the year in Marietta.
June through August, with an average maximum UV index of 7, are months with the highest UV index.
The highest temperatures are recorded in August, with averages reaching a high of 94.8°F (34.9°C) and a low of 73.8°F (23.2°C).
With an average relative humidity of 58%, August is the least humid month in Marietta.
August has the most sunshine of the year, with an average of 11.1h of sunshine.
December has the shortest days of the year, with an average of 9h and 54min of daylight.
December has the least sunshine of the year, with an average of 5.7h of sunshine.
Average temperature
Marietta, OK
The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (52.2°F).
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure
Marietta, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.89"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:
30.11"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 (29.89"Hg).
Average wind speed
Marietta, OK
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.4mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
7mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.8mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity
Marietta, OK
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (58%).
Average rainfall
Marietta, OK
- Average rainfall in January:
1.42" - Average rainfall in February:
1.61" - Average rainfall in March:
2.2" - Average rainfall in April:
2.52" - Average rainfall in May:
3.86" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.01" - Average rainfall in August:
2.2" - Average rainfall in September:
2.64" - Average rainfall in October:
3.66" - Average rainfall in November:
1.89" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days
Marietta, OK
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
10.9 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.4 days).
Average snowfall
Marietta, OK
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Marietta, OK
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1.7 days - Average snowfall days in March:
0.3 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:
0.4 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Marietta, OK
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- 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 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
7h and 12min - Average sunshine in March:
7h and 12min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
11h and 6min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Marietta, OK
- Average sunshine days in January:
23.1 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
16.1 days - Average sunshine days in May:
15 days - Average sunshine days in June:
16.2 days
- Average sunshine days in July:
17 days - Average sunshine days in August:
17.4 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
21.3 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (15 days).
Average UV index
Marietta, OK
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover
Marietta, OK
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Marietta, 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).
