May weather forecastFort Gibson, OK
May
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).Temperature
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). An average temperature of 59.4°F (15.2°C) is recorded during the nights in May.Humidity
With an average relative humidity of 80%, May is the most humid month.Rainfall
May is the month with the most rainfall. Rain falls for 15.3 days and accumulates 4.69" (119mm) of precipitation.Snowfall
In Fort Gibson, snow does not fall in May through October.Daylight
In Fort Gibson, the average length of the day in May is 14h and 4min.On the first day of May, sunrise is at 6:27 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:31 pm CDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Fort Gibson, OK
- Average high temperature in May: 77.2°F
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).
- Average low temperature in May: 59.4°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 in May
Fort Gibson, OK
- Average pressure in May: 29.93"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 in May
Fort Gibson, OK
- Average wind speed in May: 8.4mph
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 in May
Fort Gibson, OK
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (68%).
Average rainfall in May
Fort Gibson, OK
- Average rainfall in May: 4.69"
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 in May
Fort Gibson, OK
- Average rainfall days in May: 15.3 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 in May
Fort Gibson, OK
- Average snowfall in May: 0"
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 in May
Fort Gibson, OK
- Average snowfall days in May: 0 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 in May /
Average sunshine in May
Fort Gibson, OK
- Average daylight in May: 14h and 6min
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 May: 8h and 54min
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 in May
Fort Gibson, OK
- Average sunshine days in May: 13.4 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 in May
Fort Gibson, OK
- Average UV index in May: 6
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 in May
Fort Gibson, OK
- Average cloud cover in May: 36
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 in May
Fort Gibson, OK
- Average visibility in May: 6mi
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).





