May weather forecastFairfax, MO
May
Weather in May
The last month of the spring, May, is an agreeable month in Fairfax, Missouri, with an average temperature varying between 72.1°F (22.3°C) and 55°F (12.8°C).Temperature
As Fairfax transitions into May, the average high-temperature shows a change, moving from an enjoyable 63°F (17.2°C) in April to a pleasant 72.1°F (22.3°C). Fairfax, in May, experiences an average temperature of 55°F (12.8°C) at night.Humidity
The average relative humidity in May is 75%.Rainfall
In Fairfax, Missouri, during May, the rain falls for 17.3 days and regularly aggregates up to 3.86" (98mm) of precipitation. In Fairfax, during the entire year, the rain falls for 120.8 days and collects up to 24.09" (612mm) of precipitation.Snowfall
In Fairfax, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 26min.On the first day of the month, sunrise is at 6:19 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:53 am and sunset at 8:45 pm CDT.
Sunshine
In Fairfax, the average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a regular UV index of 5 translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. 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
Average temperature in May
Fairfax, MO
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Fairfax, MO
- 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 (29.87"Hg).
Average wind speed in May
Fairfax, MO
- Average wind speed in May: 8.5mph
The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in May
Fairfax, MO
- Average humidity in May: 75%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Fairfax, MO
- Average rainfall in May: 3.86"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in May
Fairfax, MO
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in May
Fairfax, MO
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Fairfax, MO
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (6.7 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
Fairfax, MO
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in May
Fairfax, MO
- Average sunshine days in May: 11.4 days
The months with the most sunshine days are November and December (21.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in May
Fairfax, MO
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Fairfax, MO
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Fairfax, MO
- 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).
