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 brings a slight increase in the average high-temperature, progressing from a pleasant 68.4°F (20.2°C) in April to a moderately hot 76.6°F (24.8°C). May witnesses an average low-temperature hovering around a moderate 58.5°F (14.7°C).Humidity
The months with the highest humidity in Forest Grove are March, May and December, with an average relative humidity of 79%.Rainfall
In Forest Grove, during May, the rain falls for 17.3 days and regularly aggregates up to 3.43" (87mm) of precipitation. Throughout the year, there are 174.6 rainfall days, and 37.68" (957mm) of precipitation is accumulated.Snowfall
In Forest Grove, snow does not fall in May through October.Daylight
The average length of the day in May is 14h and 7min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:35 pm. On the last day of May, sunrise is at 5:31 am and sunset at 7:59 pm CDT.
Sunshine
In May, the average sunshine in Forest Grove is 9.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, an average UV index of 6 transforms into the following instructions:
Fend off overexposure. Sun protection is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What are the most humid months?
What is the average humidity in May?
How many days does it rain in May in Forest Grove?
When it does not snow?
Does it snow in Forest Grove in May?
How many hours of daylight does Forest Grove have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Forest Grove, TN
- Average high temperature in May: 76.6°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (43°F).
- Average low temperature in May: 58.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in May
Forest Grove, TN
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Forest Grove, TN
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in May
Forest Grove, TN
- Average humidity in May: 79%
The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Forest Grove, TN
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in May
Forest Grove, TN
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in May
Forest Grove, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Forest Grove, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Forest Grove, TN
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in May
Forest Grove, TN
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in May
Forest Grove, TN
- 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 and December (UV index 2).
Average cloud cover in May
Forest Grove, TN
- Average cloud cover in May: 39
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Forest Grove, TN
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Forest Grove, Tennessee, USA
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