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
The arrival of May sees a shift in the average high-temperature, moving from a chilly 46.4°F (8°C) in April to a moderate 58.5°F (14.7°C). Significant variation from daytime temperatures marks May, with the month recording a nightly average of 35.2°F (1.8°C).Humidity
The average relative humidity in May is 64%.Rainfall
In Jefferson City, in May, it is raining for 18.2 days, with typically 2.36" (60mm) of accumulated precipitation. In Jefferson City, during the entire year, the rain falls for 133.7 days and collects up to 16.38" (416mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Jefferson City, in May, snow falls for 4.4 days, with typically accumulated 2.64" (67mm) of snow. Throughout the year, there are 105.8 snowfall days, and 55.12" (1400mm) of snow is accumulated.Daylight
In May, the average length of the day is 15h and 1min.On the first day of May in Jefferson City, sunrise is at 6:12 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 9:12 pm MDT.
Sunshine
In May, the average sunshine is 10.2h.UV index
In Jefferson City, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 4 in May transforms into this advice:
Act with care - The suggestion to avoid sunburn is emphasized. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Jefferson City in May?
What is the average humidity in May?
How much does it rain in May?
How many days does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Jefferson City, MT
- Average high temperature in May: 58.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in May: 35.2°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in May
Jefferson City, MT
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Jefferson City, MT
- Average wind speed in May: 5.4mph
The windiest months (with the highest average wind speed) are January and November (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Jefferson City, MT
- Average humidity in May: 64%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).
Average rainfall in May
Jefferson City, MT
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in May
Jefferson City, MT
- Average rainfall days in May: 18.2 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in May
Jefferson City, MT
- Average snowfall in May: 2.64"
The month with the highest snowfall is February (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Jefferson City, MT
- Average snowfall days in May: 4.4 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Jefferson City, MT
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in May
Jefferson City, MT
- Average sunshine days in May: 9.3 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in May
Jefferson City, MT
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Jefferson City, MT
- Average cloud cover in May: 34
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in May
Jefferson City, MT
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Jefferson City, Montana, USA
Weather forecast for your location
2. Allow the app to use your location