Climate and monthly weather forecastFort Gibson, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, in Fort Gibson, Oklahoma, is a frosty winter month, with an average temperature varying between 46.9°F (8.3°C) and 31.5°F (-0.3°C). January is the coldest month, with the temperature often reaching an average high of 46.9°F (8.3°C) and an average low of 31.5°F (-0.3°C). Weather in January »Weather in February
The last month of the winter, February, is a fresh month in Fort Gibson, Oklahoma, with an average temperature ranging between max 50.7°F (10.4°C) and min 35.1°F (1.7°C). February's onset records a minor alteration in the average high-temperature to a cool 50.7°F (10.4°C) from January's 46.9°F (8.3°C). Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Fort Gibson, Oklahoma, with an average temperature varying between 44.1°F (6.7°C) and 61.3°F (16.3°C). Fort Gibson's March weather brings a rise in high-temperatures, moving from a fresh 50.7°F (10.4°C) in February to an enjoyable 61.3°F (16.3°C). Weather in March »Weather in April
April is an agreeable spring month in Fort Gibson, Oklahoma, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 51.3°F (10.7°C). A gentle upsurge in temperatures occurs as March gives way to April, with average highs shifting from a comfortable 61.3°F (16.3°C) to an agreeable 69.6°F (20.9°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Fort Gibson, Oklahoma, with an average temperature ranging between min 59.4°F (15.2°C) and max 77.2°F (25.1°C). The arrival of May witnesses a small shift in the average high-temperature, moving from a pleasant 69.6°F (20.9°C) in April to a moderately hot 77.2°F (25.1°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Fort Gibson, Oklahoma, with an average temperature varying between 87.6°F (30.9°C) and 68.9°F (20.5°C). As Fort Gibson, Oklahoma, welcomes June, the average high-temperature sees a rise, transitioning from a warm 77.2°F (25.1°C) in May to a hot 87.6°F (30.9°C). Weather in June »Weather in July
July, like June, is another tropical summer month in Fort Gibson, Oklahoma, with temperature in the range of an average high of 91.9°F (33.3°C) and an average low of 72°F (22.2°C). July registers as the month with the highest average temperatures, reaching 91.9°F (33.3°C) at its peak and 72°F (22.2°C) at the lowest. Throughout July, the heat index is calculated to be an extremely hot 111.2°F (44°C). Weather in July »Weather in August
August, the last month of the summer in Fort Gibson, is also a hot month, with an average temperature varying between 69.8°F (21°C) and 91°F (32.8°C). The shift into August reveals an average high-temperature of a still tropical 91°F (32.8°C), closely mirroring July's climate. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Fort Gibson, Oklahoma, with an average temperature ranging between max 84.2°F (29°C) and min 63.7°F (17.6°C). September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's tropical 91°F (32.8°C) to a warm 84.2°F (29°C). Weather in September »Weather in October
October, like September, is another pleasant autumn month in Fort Gibson, Oklahoma, with an average temperature varying between 71.2°F (21.8°C) and 52.7°F (11.5°C). October implies a gentle temperature shift, with average high-temperatures reducing from September's moderately hot 84.2°F (29°C) to a pleasant 71.2°F (21.8°C). Weather in October »Weather in November
November, the last month of the autumn in Fort Gibson, is another refreshing month, with an average temperature ranging between max 59.4°F (15.2°C) and min 42.4°F (5.8°C). November comes with a drop in the average high-temperature, falling from October's agreeable 71.2°F (21.8°C) to a mild 59.4°F (15.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Fort Gibson, Oklahoma, with an average temperature ranging between min 34.9°F (1.6°C) and max 49.1°F (9.5°C). December weather is marked by a drop in the average high-temperature, falling from a refreshing 59.4°F (15.2°C) in November to a frosty 49.1°F (9.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Fort Gibson, OK
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (46.9°F).
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure
Fort Gibson, OK
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Fort Gibson, OK
- Average wind speed in January:
9.2mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.3mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.3mph - Average wind speed in November:
9.3mph - Average wind speed in December:
8.7mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Fort Gibson, OK
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Fort Gibson, OK
- Average rainfall in January:
1.89" - Average rainfall in February:
1.65" - Average rainfall in March:
3.07" - Average rainfall in April:
3.23" - Average rainfall in May:
4.69" - Average rainfall in June:
2.36"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.95" - Average rainfall in September:
2.8" - Average rainfall in October:
3.31" - Average rainfall in November:
1.89" - Average rainfall in December:
1.85"
The wettest month (with the highest rainfall) is May (4.69").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days
Fort Gibson, OK
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.1 days).
Average snowfall
Fort Gibson, OK
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Fort Gibson, OK
- Average snowfall days in January:
1.2 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:
0.1 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
1 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 and September (0 days).
Average daylight / Average sunshine
Fort Gibson, 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 6min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - 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:
5h and 42min - Average sunshine in February:
6h and 12min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 12min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
Fort Gibson, OK
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
15.5 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
20.8 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is April (13.2 days).
Average UV index
Fort Gibson, OK
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Fort Gibson, OK
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility
Fort Gibson, 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).





