May weather forecastArch, OK
May
Weather in May
May, the last month of the spring in Arch, is a warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 78.1°F (25.6°C).Temperature
May brings a slight increase in the average high-temperature, progressing from a pleasant 71.1°F (21.7°C) in April to a warm 78.1°F (25.6°C). Throughout the month of May, Arch expects an average low of 59.5°F (15.3°C).Humidity
With an average relative humidity of 78%, May is the most humid month.Rainfall
May is the month with the most rainfall in Arch, Oklahoma. Rain falls for 13 days and accumulates 3.19" (81mm) of precipitation.Snowfall
In Arch, Oklahoma, snow does not fall in May through October.Daylight
In May, the average length of the day is 14h and 0min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:08 pm. On the last day of May, sunrise is at 6:10 am and sunset at 8:30 pm CDT.
Sunshine
In Arch, the average sunshine in May is 8.8h.UV index
In Arch, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Fend off overexposure. Sun protection is vital. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Arch, OK
- Average high temperature in May: 78.1°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in May: 59.5°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in May
Arch, OK
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Arch, OK
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
Arch, OK
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in May
Arch, OK
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in May
Arch, OK
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in May
Arch, OK
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Arch, 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
Arch, OK
- Average daylight in May: 14h and 0min
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 54min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Arch, OK
- Average sunshine days in May: 15.9 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is July (14.4 days).
Average UV index in May
Arch, 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
Arch, OK
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
Arch, 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).





