May weather forecastKatherine, AZ
May
Weather in May
The last month of the spring, May, is a hot month in Katherine, Arizona, with an average temperature varying between 64.6°F (18.1°C) and 86.2°F (30.1°C).Temperature
The beginning of May signals a minor rise in the average high-temperature, moving from a moderately hot 77.9°F (25.5°C) in April to a tropical 86.2°F (30.1°C). A significant drop from the day's peak to an average low-temperature of 64.6°F (18.1°C) is noted during the nights in May.Humidity
The average relative humidity in May is 19%.Rainfall
In May, the rain falls for 2.3 days. Throughout May, 0.12" (3mm) of precipitation is accumulated. In Katherine, during the entire year, the rain falls for 44 days and collects up to 4.21" (107mm) of precipitation.Snowfall
In Katherine, snow does not fall in January through November.Daylight
In May, the average length of the day is 14h and 2min.On the first day of May, sunrise is at 5:45 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 7:47 pm MST.
Sunshine
The average sunshine in May is 11.9h.UV index
The average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In May, the UV index of 7 transforms into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Katherine, AZ
- Average high temperature in May: 86.2°F
The warmest month (with the highest average high temperature) is July (100.8°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in May: 64.6°F
The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is December (43.5°F).
Average pressure in May
Katherine, AZ
- Average pressure in May: 29.8"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).
Average wind speed in May
Katherine, AZ
- Average wind speed in May: 9.9mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).
Average humidity in May
Katherine, AZ
- Average humidity in May: 19%
The month with the highest relative humidity is January (42%).
The month with the lowest relative humidity is June (14%).
Average rainfall in May
Katherine, AZ
- Average rainfall in May: 0.12"
The wettest month (with the highest rainfall) is December (0.67").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Katherine, AZ
- Average rainfall days in May: 2.3 days
The month with the highest number of rainy days is July (5.9 days).
The month with the least rainy days is June (1.1 days).
Average snowfall days in May
Katherine, AZ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Katherine, AZ
- 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 48min).
- Average sunshine in May: 11h and 54min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in May
Katherine, AZ
- Average sunshine days in May: 28.2 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is July (20.3 days).
Average UV index in May
Katherine, AZ
- Average UV index in May: 7
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Katherine, AZ
- Average cloud cover in May: 9
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in May
Katherine, AZ
- 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).
