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 58.1°F (14.5°C). Alder's average low-temperature for the month of May denotes a significant decline from the daily high, recording at an icy 35.2°F (1.8°C).Humidity
The average relative humidity in May in Alder is 62%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.4 days and typically aggregates up to 1.85" (47mm) of precipitation.Snowfall
In Alder, snow does not fall in May through September.Daylight
In Alder, the average length of the day in May is 14h and 55min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:35 pm. On the last day of May, sunrise is at 5:43 am and sunset at 9:08 pm MDT.
Sunshine
In Alder, the average sunshine in May is 10.7h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Alder?
What is the average humidity in May in Alder?
What is the rainiest month in Alder?
How much does it rain in Alder in May?
When it does not snow in Alder?
Does it snow in Alder in May?
How many hours of daylight does Alder have in May?
When is the sunrise / sunset in May in Alder?
How many hours of sunshine does Alder have in May?
How high is the UV index in May in Alder?
Average temperature in May
Alder, MT
- Average high temperature in May: 58.1°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (26.4°F).
- Average low temperature in May: 35.2°F
The month with the highest average low temperature is July (47.7°F).
The coldest month (with the lowest average low temperature) is December (11.3°F).
Average pressure in May
Alder, MT
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Alder, MT
- Average wind speed in May: 5.4mph
The windiest month (with the highest average wind speed) is November (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Alder, MT
- Average humidity in May: 62%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in May
Alder, MT
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in May
Alder, MT
- Average rainfall days in May: 18.4 days
The month with the highest number of rainy days is April (18.6 days).
The month with the least rainy days is August (8.6 days).
Average snowfall in May
Alder, MT
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Alder, MT
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (6.2 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
Alder, MT
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in May
Alder, MT
- Average sunshine days in May: 9.1 days
The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is April (7.8 days).
Average UV index in May
Alder, MT
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in May
Alder, MT
- Average cloud cover in May: 30
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in May
Alder, MT
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Alder, Montana, USA
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