Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May witnesses an increase in the average high-temperature, moving from a mild 56.8°F (13.8°C) in April to a pleasant 68.9°F (20.5°C). In the month of May, Altona witnesses a consistent average low-temperature of 52.2°F (11.2°C).Humidity
In Altona, Indiana, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 3.11" (79mm) of precipitation.Snowfall
Months with snowfall in Altona are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Altona aggregates 0.04" (1mm) of snow. Throughout the year, there are 54.1 snowfall days, and 13.43" (341mm) of snow is accumulated.Daylight
In Altona, Indiana, the average length of the day in May is 14h and 32min.On the first day of May, sunrise is at 6:36 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 9:07 pm EDT.
Sunshine
In Altona, the average sunshine in May is 8.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Altona?
What is the average humidity in May in Altona?
What is the wettest month in Altona?
How many days does it rain in May in Altona?
What is the last month it snows in Altona?
What is the average length of the day in May in Altona?
What time are sunrise and sunset in May in Altona?
How long on average sun shines in May in Altona?
What is the UV index reading in May in Altona?
Average temperature in May
Altona, IN
- Average high temperature in May: 68.9°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Altona, IN
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Altona, IN
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in May
Altona, IN
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in May
Altona, IN
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are January and December (1.34").
Average rainfall days in May
Altona, IN
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in May
Altona, IN
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Altona, IN
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Altona, IN
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Altona, IN
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in May
Altona, IN
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Altona, IN
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Altona, IN
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Altona, Indiana, USA
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