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
Entering May, Lewiston sees a temperature rise, with the average high-temperature advancing from April's enjoyable 62.4°F (16.9°C) to a pleasant 71.8°F (22.1°C). Lewiston sees an average low-temperature of 54.1°F (12.3°C) during May.Humidity
In May, the average relative humidity in Lewiston is 74%.Rainfall
The month with the most rainfall is May, when the rain falls for 14.8 days and typically aggregates up to 2.83" (72mm) of precipitation.Snowfall
In Lewiston, snow does not fall in May through September.Daylight
The average length of the day in May in Lewiston is 14h and 26min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:21 pm. On the last day of May, sunrise is at 5:58 am and sunset at 8:48 pm CDT.
Sunshine
The average sunshine in May is 8.8h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Lewiston?
What is the average humidity in May in Lewiston?
What is the wettest month in Lewiston?
How much does it rain in Lewiston in May?
When it does not snow in Lewiston?
Does it snow in Lewiston in May?
What is the average length of the day in May in Lewiston?
When is the sunrise / sunset in May in Lewiston?
How long on average sun shines in May in Lewiston?
How high is the UV index in May in Lewiston?
Average temperature in May
Lewiston, NE
- Average high temperature in May: 71.8°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in May
Lewiston, NE
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Lewiston, NE
- Average wind speed in May: 9.1mph
The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in May
Lewiston, NE
- Average humidity in May: 74%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is October (66%).
Average rainfall in May
Lewiston, NE
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is May (2.83").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in May
Lewiston, NE
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in May
Lewiston, NE
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Lewiston, NE
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Lewiston, NE
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in May
Lewiston, NE
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (24.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in May
Lewiston, NE
- Average UV index in May: 5
The months with the highest UV index are 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
Lewiston, NE
- Average cloud cover in May: 39
The months with the most cloud cover are January and March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in May
Lewiston, NE
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lewiston, Nebraska, USA
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