Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset brings a minor rise in the average high-temperature, moving from an agreeable 69.6°F (20.9°C) in April to a warm 76.5°F (24.7°C). Grayson experiences a consistent average temperature of 59.9°F (15.5°C) throughout the nights in May.Humidity
With an average relative humidity of 80%, May is the most humid month in Grayson, Oklahoma.Rainfall
May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 5" (127mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 3min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:10 pm. On the last day of May, sunrise is at 6:09 am and sunset at 8:33 pm CDT.
Sunshine
The average sunshine in May is 8.5h.UV index
In Grayson, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in May leads to these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grayson in May?
What is the most humid month?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Grayson, OK
- Average high temperature in May: 76.5°F
The warmest month (with the highest average high temperature) is August (91.6°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in May: 59.9°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in May
Grayson, OK
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Grayson, OK
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Grayson, 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 (66%).
Average rainfall in May
Grayson, OK
- Average rainfall in May: 5"
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in May
Grayson, OK
- Average rainfall days in May: 15.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in May
Grayson, OK
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Grayson, OK
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Grayson, OK
- Average daylight in May: 14h and 1min
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 3min
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 36min).
Average sunshine days in May
Grayson, OK
- Average sunshine days in May: 13.1 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in May
Grayson, OK
- Average UV index in May: 6
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 in May
Grayson, OK
- Average cloud cover in May: 38
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in May
Grayson, 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).
Grayson, Oklahoma, USA
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