May weather forecastPalmyra, IL
May
Weather in May
May, the last month of the spring in Palmyra, is a pleasant month, with an average temperature fluctuating between 56.8°F (13.8°C) and 73.2°F (22.9°C).Temperature
With the arrival of May, the average high-temperature transitions from an enjoyable 63.5°F (17.5°C) in April to an agreeable 73.2°F (22.9°C). Throughout the month of May, Palmyra witnesses an average temperature of 56.8°F (13.8°C).Humidity
The average relative humidity in May is 78%.Rainfall
In Palmyra, in May, it is raining for 17.8 days, with typically 3.54" (90mm) of accumulated precipitation. In Palmyra, during the entire year, the rain falls for 151.5 days and collects up to 31.3" (795mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:20 pm CDT.
Sunshine
In May, the average sunshine is 9.2h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 5 during May translates into the following guidance:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Palmyra, IL
- Average high temperature in May: 73.2°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in May
Palmyra, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Palmyra, IL
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in May
Palmyra, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Palmyra, IL
- Average rainfall in May: 3.54"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is December (1.73").
Average rainfall days in May
Palmyra, IL
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in May
Palmyra, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Palmyra, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.5 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
Palmyra, IL
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 9h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Palmyra, IL
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in May
Palmyra, IL
- 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
Palmyra, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in May
Palmyra, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
