May weather forecastGalena, IN
May
Weather in May
The last month of the spring, May, is a warm month in Galena, Indiana, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 75°F (23.9°C).Temperature
As May begins, there is an increase in the average high-temperature, moving from an enjoyable 65.8°F (18.8°C) in April to a moderately hot 75°F (23.9°C). During the month of May, an average low-temperature of 56.8°F (13.8°C) is recorded in Galena.Humidity
In May, the average relative humidity in Galena is 79%.Rainfall
In Galena, during May, the rain falls for 19 days and regularly aggregates up to 3.31" (84mm) of precipitation. In Galena, during the entire year, the rain falls for 162.5 days and collects up to 31.65" (804mm) of precipitation.Snowfall
In Galena, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 16min.On the first day of May, sunrise is at 6:45 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 9:01 pm EDT.
Sunshine
The average sunshine in May is 8.8h.UV index
The months with the highest UV index in Galena are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Galena, IN
- Average high temperature in May: 75°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in May: 56.8°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 (25.3°F).
Average pressure in May
Galena, IN
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Galena, IN
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in May
Galena, IN
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Galena, IN
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in May
Galena, IN
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is May (19 days).
The months with the least rainy days are January and February (10.3 days).
Average snowfall in May
Galena, IN
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Galena, IN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.8 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
Galena, IN
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in May
Galena, IN
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in May
Galena, IN
- Average UV index in May: 6
The months with the highest UV index are May, 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
Galena, IN
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Galena, IN
- Average visibility in May: 5mi
The months with the highest visibility are April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July and December (5mi).
