February weather forecastSun Valley, ID

February
Weather in February
Going from January to February, Sun Valley sees a slight increase in temperatures without a substantial break from its winter persona. More snow adds another 15" (381mm) layer, earning February the title of the snowiest month of the year. The daily high edges up to 27°F (-2.8°C) while the low creeps up to 10°F (-12.2°C), reinforcing the chilly weather. Engaging in outdoor activities remain pleasantly frosty thanks to February's sustained snowy conditions. Maintaining the theme from January, the winter warmth is best experienced next to a fireplace.Temperature
Sun Valley, Idaho, starts February with an average high-temperature of a still subzero cold 27°F (-2.8°C), a minor shift from January's 26.8°F (-2.9°C). Throughout February, an average nighttime temperature of 10°F (-12.2°C) is experienced.Humidity
With an average relative humidity of 87%, February is the most humid month in Sun Valley.Rainfall
In February, in Sun Valley, the rain falls for 7.4 days. Throughout February, 1.93" (49mm) of precipitation is accumulated. In Sun Valley, Idaho, during the entire year, the rain falls for 107.7 days and collects up to 15.63" (397mm) of precipitation.Snowfall
Months with snowfall in Sun Valley are January through June, September through December. February is the month with the most snowfall in Sun Valley. Snow falls for 15.5 days and accumulates 15" (381mm) of snow.Daylight
In February, the average length of the day is 10h and 31min.On the first day of February, sunrise is at 7:54 am and sunset at 5:47 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:25 pm MST.
Sunshine
The average sunshine in February in Sun Valley is 6.4h.UV index
With an average maximum UV index of 1, February is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 1 during February morphs into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Boost your sun resistance with garments that are densely woven yet spacious. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in February
Sun Valley, ID
- Average high temperature in February: 27°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (25°F).
- Average low temperature in February: 10°F
The months with the highest average low temperature are July and August (50.5°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in February
Sun Valley, ID
- Average pressure in February: 30.15"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in February
Sun Valley, ID
- Average wind speed in February: 5.2mph
The windiest month (with the highest average wind speed) is July (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).
Average humidity in February
Sun Valley, ID
- Average humidity in February: 87%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (37%).
Average rainfall in February
Sun Valley, ID
- Average rainfall in February: 1.93"
The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in February
Sun Valley, ID
- Average rainfall days in February: 7.4 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is July (5.9 days).
Average snowfall in February
Sun Valley, ID
- Average snowfall in February: 15"
The month with the highest snowfall is February (15").
The months with the least snowfall are July and August (0").
Average snowfall days in February
Sun Valley, ID
- Average snowfall days in February: 15.5 days
The month with the highest number of snowfall days is March (16 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in February /
Average sunshine in February
Sun Valley, ID
- Average daylight in February: 10h and 30min
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 February: 6h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in February
Sun Valley, ID
- Average sunshine days in February: 11.7 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is April (11.1 days).
Average UV index in February
Sun Valley, ID
- Average UV index in February: 1
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in February
Sun Valley, ID
- Average cloud cover in February: 44
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in February
Sun Valley, ID
- Average visibility in February: 4mi
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 and December (4mi).





