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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, in Jefferson, Oklahoma, is another chilly winter month, with an average temperature varying between 47.1°F (8.4°C) and 29.5°F (-1.4°C). In Jefferson, January is the month with the lowest recorded average temperatures, measuring a high of 47.1°F (8.4°C) and a low of 29.5°F (-1.4°C). Weather in January »
Weather in February
February, the last month of the winter in Jefferson, is a fresh month, with an average temperature fluctuating between 32.5°F (0.3°C) and 50°F (10°C). Transitioning into February, Jefferson records an average high-temperature of a fresh 50°F (10°C), almost identical to January's 47.1°F (8.4°C). Weather in February »
Weather in March
The first month of the spring, March, is an enjoyable month in Jefferson, Oklahoma, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 61.3°F (16.3°C). In Jefferson, the onset of March comes with an increased average high-temperature, moving from February's cool 50°F (10°C) to an enjoyable 61.3°F (16.3°C). Weather in March »
Weather in April
April is a pleasant spring month in Jefferson, Oklahoma, with an average temperature varying between 48.9°F (9.4°C) and 69.3°F (20.7°C). The shift into April is marked by a modest rise in the average high-temperature, moving from March's enjoyable 61.3°F (16.3°C) to a pleasant 69.3°F (20.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Jefferson, Oklahoma, with an average temperature ranging between max 78.3°F (25.7°C) and min 59.2°F (15.1°C). Jefferson in May shows a temperature shift, moving from an average high of a pleasant 69.3°F (20.7°C) in April to a warm 78.3°F (25.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in Jefferson, Oklahoma, with an average temperature fluctuating between 71.2°F (21.8°C) and 91°F (32.8°C). With the onset of June, Jefferson's average high-temperature sees a rise, moving from May's warm 78.3°F (25.7°C) to a tropical 91°F (32.8°C). Weather in June »
Weather in July
July in Jefferson, Oklahoma, is a sweltering summer month, with temperature in the range of an average low of 74.8°F (23.8°C) and an average high of 95°F (35°C). With its high average temperature of 95°F (35°C) and a low of 74.8°F (23.8°C), July is regarded as the warmest month. Throughout July, the heat index is computed to be a blistering 109.4°F (43°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Jefferson, Oklahoma, with an average temperature varying between 72.9°F (22.7°C) and 93.4°F (34.1°C). The transition into August shows a subtle variation to a hot 93.4°F (34.1°C) from July's 95°F (35°C) in the average high-temperature. Weather in August »
Weather in September
September, the first month of the autumn in Jefferson, is still a warm month, with an average temperature varying between 66.2°F (19°C) and 84.9°F (29.4°C). A mild shift in the average high-temperature occurs in September, reducing from a tropical 93.4°F (34.1°C) in August to a warm 84.9°F (29.4°C). Weather in September »
Weather in October
October, the same as September, in Jefferson, Oklahoma, is an agreeable autumn month, with an average temperature fluctuating between 52.5°F (11.4°C) and 70.2°F (21.2°C). The shift into October is characterized by a noticeable reduction in the average high-temperature, decreasing from September's warm 84.9°F (29.4°C) to an agreeable 70.2°F (21.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Jefferson, is also a moderate month, with an average temperature fluctuating between 40.3°F (4.6°C) and 58.6°F (14.8°C). Jefferson in November demonstrates a small temperature transition, adjusting from an average high of an agreeable 70.2°F (21.2°C) in October to a moderate 58.6°F (14.8°C). Weather in November »
Weather in December
December, the first month of the winter in Jefferson, is also a frosty month, with an average temperature ranging between min 30.9°F (-0.6°C) and max 47.7°F (8.7°C). The shift to December brings a decrease in the average high-temperature, falling from a mild 58.6°F (14.8°C) in November to a frosty 47.7°F (8.7°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
What time of the year is the coldest?
January is the coldest month, exhibiting average temperatures of 47.1°F (8.4°C) at the peak and 29.5°F (-1.4°C) at the base.
How many days does it rain?
In Jefferson, during the entire year, the rain falls for 115 days and collects up to 21.5" (546mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
How many days does it snow in Jefferson?
Throughout the year, there are 10.5 snowfall days, and 4.02" (102mm) of snow is accumulated.
When does it snow the most in Jefferson?
The month with the most snowfall is February, when snow falls for 3.3 days and typically aggregates up to 1.5" (38mm) of snow.
When is Daylight Saving Time (DST)?
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 most humid month?
May is the most humid month, with an average relative humidity of 69%.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 14.8 days and typically aggregates up to 4.09" (104mm) of precipitation.
When it does not snow?
In Jefferson, snow does not fall in May through September.
When are the longest days?
With an average of 14h and 36min of daylight, June has the longest days of the year.
What are the months with the most sunshine?
June and July, with an average of 11.2h of sunshine, are months with the most sunshine.
When is the highest UV index?
June through August, with an average maximum UV index of 7, are months with the highest UV index.
What part of the year is the hottest?
Jefferson witnesses the warmest weather in July, with temperatures averaging a high of 95°F (35°C) and a low of 74.8°F (23.8°C).
What is the least humid month?
The months with the lowest humidity are July and August, with an average relative humidity of 56%.
What is the month with the least sunshine?
The months with the least sunshine are November and December, with an average of 6.3h of sunshine.
What is the driest month?
The month with the least rainfall in Jefferson is December, when the rain falls for 5.5 days and typically collects 0.71" (18mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 42min of daylight, December has the shortest days of the year.
When is the lowest UV index in Jefferson?
December is the month with the lowest UV index, with an average maximum UV index of 2.
Average temperature
Jefferson, OK
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (47.1°F).
The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure
Jefferson, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.89"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"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 (29.86"Hg).
Average wind speed
Jefferson, OK
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.6mph - Average wind speed in March:
11.4mph - Average wind speed in April:
11.7mph - Average wind speed in May:
10.3mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
9mph - Average wind speed in August:
8.5mph - Average wind speed in September:
9.1mph - Average wind speed in October:
10.1mph - Average wind speed in November:
10.7mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity
Jefferson, OK
The month with the highest relative humidity is May (69%).
The months with the lowest relative humidity are July and August (56%).
Average rainfall
Jefferson, OK
- Average rainfall in January:
0.91" - Average rainfall in February:
0.87" - Average rainfall in March:
1.34" - Average rainfall in April:
2.36" - Average rainfall in May:
4.09" - Average rainfall in June:
1.89"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days
Jefferson, OK
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
12.4 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
10.3 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Jefferson, OK
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Jefferson, OK
- Average snowfall days in January:
2.4 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1.3 days - Average snowfall days in April:
0.3 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:
0.3 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
1.8 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Jefferson, OK
- Average daylight in January:
10h and 0min - 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 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - 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 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
7h and 3min - Average sunshine in March:
7h and 3min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 4min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 2min - Average sunshine in December:
6h and 2min
The months with the most sunshine are June and July (Average sunshine: 11h and 12min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).
Average sunshine days
Jefferson, OK
- Average sunshine days in January:
23.8 days - Average sunshine days in February:
19 days - Average sunshine days in March:
18 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
15.5 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
23.2 days - Average sunshine days in December:
23.9 days
The month with the most sunshine days is December (23.9 days).
The month with the least sunshine days is May (14.3 days).
Average UV index
Jefferson, 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
Jefferson, OK
The months with the most cloud cover are March and April (Cloud cover 35).
The months with the least cloud cover are June and August (Cloud cover 19).
Average visibility
Jefferson, 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).
Jefferson, Oklahoma, USA
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