Climate and monthly weather forecastJefferson, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, in Jefferson, Oklahoma, is another chilly winter month, with an average temperature ranging between max 47.1°F (8.4°C) and min 29.5°F (-1.4°C). January, known for its average high temperature of 47.1°F (8.4°C) and an average low temperature of 29.5°F (-1.4°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Jefferson, is a fresh month, with an average temperature ranging between min 32.5°F (0.3°C) and max 50°F (10°C). The commencement of February records an average high-temperature of a cool 50°F (10°C), barely varying from January's 47.1°F (8.4°C). Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Jefferson, Oklahoma, with an average temperature fluctuating between 42.4°F (5.8°C) and 61.3°F (16.3°C). Jefferson's transition into March sees a rise in the average high-temperature, advancing from a cool 50°F (10°C) in February to an enjoyable 61.3°F (16.3°C). Weather in March »Weather in April
April in Jefferson, Oklahoma, is a pleasant spring month, with an average temperature varying between 48.9°F (9.4°C) and 69.3°F (20.7°C). Jefferson's April weather indicates a minor increase in high-temperatures, edging from March's enjoyable 61.3°F (16.3°C) to an agreeable 69.3°F (20.7°C). Weather in April »Weather in May
May, the last month of the spring in Jefferson, is a warm month, with an average temperature fluctuating between 78.3°F (25.7°C) and 59.2°F (15.1°C). May sees a rise in the average high-temperature, climbing from 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
June, the first month of the summer in Jefferson, is a hot month, with an average temperature fluctuating between 71.2°F (21.8°C) and 91°F (32.8°C). As May gives way to June, the average high-temperature displays an increase, moving from a warm 78.3°F (25.7°C) to a hot 91°F (32.8°C). Weather in June »Weather in July
July in Jefferson, Oklahoma, is a very hot summer month, with an average temperature ranging between max 95°F (35°C) and min 74.8°F (23.8°C). July, with average temperatures reaching a high of 95°F (35°C) and a low of 74.8°F (23.8°C), is the warmest month. For most parts of July, the heat index is calculated to be a blistering 109.4°F (43°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Jefferson, Oklahoma, with an average temperature ranging between min 72.9°F (22.7°C) and max 93.4°F (34.1°C). The start of August marks an average high-temperature of a tropical 93.4°F (34.1°C), hardly distinguishable from the conditions in July. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Jefferson, Oklahoma, with an average temperature ranging between min 66.2°F (19°C) and max 84.9°F (29.4°C). The start of September involves a subtle temperature drop, shifting from a hot 93.4°F (34.1°C) in August to a moderately hot 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 ranging between max 70.2°F (21.2°C) and min 52.5°F (11.4°C). Jefferson's transition into October is marked by a clear drop in the average high-temperature, receding from a warm 84.9°F (29.4°C) in September 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 varying between 58.6°F (14.8°C) and 40.3°F (4.6°C). Jefferson's progression into November includes a drop in the average high-temperature, from a pleasant 70.2°F (21.2°C) in October to a moderate 58.6°F (14.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Jefferson, Oklahoma, with an average temperature fluctuating between 30.9°F (-0.6°C) and 47.7°F (8.7°C). Jefferson's weather in December involves a decrease in the average high-temperature, moving down from November's mild 58.6°F (14.8°C) to a frosty 47.7°F (8.7°C). Weather in December »Updated: Aug 21, 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
Temperature records mark January as the coldest month, with highs averaging 47.1°F (8.4°C) and lows at 29.5°F (-1.4°C).
Throughout the year, there are 115 rainfall days, and 21.5" (546mm) of precipitation is accumulated.
Months with snowfall in Jefferson are January through April, October through December.
In Jefferson, during the entire year, snow falls for 10.5 days and aggregates up to 4.02" (102mm) of snow.
February is the month with the most snowfall. Snow falls for 3.3 days and accumulates 1.5" (38mm) 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 69%.
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.
In Jefferson, snow does not fall in May through September.
With an average of 14h and 36min of daylight, June has the longest days of the year.
June and July, with an average of 11.2h of sunshine, are months with the most sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
Jefferson registers the average highest temperatures during July, with peaks of 95°F (35°C) and lows of 74.8°F (23.8°C).
The months with the lowest humidity are July and August, with an average relative humidity of 56%.
November and December, with an average of 6.3h of sunshine, are months with the least sunshine.
December is the month with the least rainfall. Rain falls for 5.5 days and accumulates 0.71" (18mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 42min of daylight.
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 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 36min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
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 24min - Average sunshine in February:
7h and 30min - Average sunshine in March:
7h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 36min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 12min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 54min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 18min - Average sunshine in December:
6h and 18min
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).
