Normal weather for Janesville in May
It's pleasantly warm in May in Janesville with an average temperature of 20°C. Temperatures this month range from a low of 16°C to a high of 26°C. At night, you can expect temperatures between 6°C and 14°C.
In May, there is an average of 114 mm of precipitation, spread over 13 days. The wind speed is around 5 Bft, mostly coming from the South.
Janesville in May |
New York | ||
|---|---|---|---|
 Average Temperature |
20°C | 22°C | |
 High Temp |
26°C | 28°C | |
| Low Temp |
16°C | 17°C | |
 Total Precipitation |
114 mm | 105 mm | |
| Rainy Days |
13 days | 14 days | |
Start of May
The month of May starts in Janesville with mild temps, averaging around 19°C during the day and nights around 7°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
Mid May
By mid-May, daytime temps rise to around 20°C, with nights around 10°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
Since it cools down at night, it’s a good idea to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
End of May
By the end of May, the average daytime temperature in Janesville is around 24°C, while nighttime temps are about 13°C. A shower might pop up, but overall, the weather will be dry and sunny.
Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Janesville?
Looking for sun? May isn’t a good month to be in Janesville. The temperature is nice, but there’s too much chance of rain.
Temperature records for Janesville in May
Check out the climate of Janesville for all months and discover the best travel time
April
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Daily Temperature in May in Janesville
This chart shows the average daily high and low temperatures in May for Janesville, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Janesville
The chart below shows the average daily precipitation in May for Janesville, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 13 days of precipitation in Janesville.
Daily UV Index in May in Janesville
This chart shows the average daily UV index in May in Janesville, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Janesville Over the Years
This chart shows the average temperature in May in Janesville, measured in degrees Celsius, over the past few years.
Total Precipitation in May in Janesville Over the Years
This chart shows the average precipitation in May in Janesville, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in May for Janesville
Click on any day in May to get detailed info about the usual weather on that day in Janesville. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Janesville
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Average Weather in Janesville by Month
Click on a month below to see detailed weather info for Janesville. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Janesville for all months at once
