May weather forecastNew Plymouth, ID
May
Weather in May
May, the last month of the spring in New Plymouth, is an agreeable month, with an average temperature varying between 46.6°F (8.1°C) and 70.7°F (21.5°C).Temperature
As April gives way to May, the average high-temperature displays an increase, moving from an enjoyable 60.8°F (16°C) to an agreeable 70.7°F (21.5°C). New Plymouth documents a significant temperature variance in May, with the mean nighttime lows settling at a frosty 46.6°F (8.1°C).Humidity
The average relative humidity in May is 49%.Rainfall
In New Plymouth, during May, the rain falls for 7.8 days and regularly aggregates up to 0.83" (21mm) of precipitation. In New Plymouth, Idaho, during the entire year, the rain falls for 95.4 days and collects up to 10.2" (259mm) of precipitation.Snowfall
In New Plymouth, snow does not fall in May through October.Daylight
In May, the average length of the day is 14h and 46min.On the first day of May, sunrise is at 6:37 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 9:22 pm MDT.
Sunshine
In May, the average sunshine in New Plymouth is 11.2h.UV index
In New Plymouth, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In May, an average UV index of 5 transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
New Plymouth, ID
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).
Average pressure in May
New Plymouth, ID
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in May
New Plymouth, ID
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in May
New Plymouth, ID
- Average humidity in May: 49%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (30%).
Average rainfall in May
New Plymouth, ID
- Average rainfall in May: 0.83"
The wettest month (with the highest rainfall) is March (1.61").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in May
New Plymouth, ID
- Average rainfall days in May: 7.8 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in May
New Plymouth, ID
- Average snowfall in May: 0"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
New Plymouth, ID
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (7.5 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
New Plymouth, ID
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 11h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in May
New Plymouth, ID
- Average sunshine days in May: 20.7 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (13.8 days).
Average UV index in May
New Plymouth, ID
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
New Plymouth, ID
- Average cloud cover in May: 22
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in May
New Plymouth, ID
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).





