May weather forecastGreenfield, OK
May
Weather in May
The last month of the spring, May, is a moderately hot month in Greenfield, Oklahoma, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 78.6°F (25.9°C).Temperature
In Greenfield, the average high-temperature in May rises, from an agreeable 69.4°F (20.8°C) in April, to a warm 78.6°F (25.9°C). In Greenfield, the expected average low-temperature for May is a moderate 59.5°F (15.3°C).Humidity
May is the most humid month, with an average relative humidity of 67%.Rainfall
The month with the most rainfall is May, when the rain falls for 13.8 days and typically aggregates up to 3.54" (90mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Greenfield, Oklahoma, the average length of the day in May is 14h and 4min.On the first day of the month, sunrise is at 6:40 am and sunset at 8:20 pm. On the last day of May, sunrise is at 6:18 am and sunset at 8:43 pm CDT.
Sunshine
The average sunshine in May is 9.7h.UV index
In Greenfield, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 6 during May translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Greenfield, OK
- Average high temperature in May: 78.6°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in May: 59.5°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in May
Greenfield, OK
- Average pressure in May: 29.89"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 in May
Greenfield, OK
- Average wind speed in May: 11.2mph
The windiest month (with the highest average wind speed) is April (12.6mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in May
Greenfield, OK
- Average humidity in May: 67%
The month with the highest relative humidity is May (67%).
The month with the lowest relative humidity is August (55%).
Average rainfall in May
Greenfield, OK
- Average rainfall in May: 3.54"
The wettest month (with the highest rainfall) is May (3.54").
The driest months (with the least rainfall) are January, February, November and December (0.83").
Average rainfall days in May
Greenfield, OK
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in May
Greenfield, OK
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Greenfield, OK
- Average snowfall days in May: 0 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 in May /
Average sunshine in May
Greenfield, 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: 9h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The months with the least sunshine are November and December (Average sunshine: 6h and 24min).
Average sunshine days in May
Greenfield, OK
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is April (14.8 days).
Average UV index in May
Greenfield, 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
Greenfield, OK
- Average cloud cover in May: 30
The months with the most cloud cover are March and April (Cloud cover 34).
The months with the least cloud cover are June and August (Cloud cover 18).
Average visibility in May
Greenfield, 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).
