Sun Valley, ID weather in April
In April, Sun Valley sees highs around 52°F and lows around 27°F: chilly, with some rain and some snow. Expect about 7 wet days. Snowfall averages about 3.2 in.
- Normal high
- 52°F
- Normal low
- 27°F
- Wet days
- 7
- 1.2 in total
- Snowfall
- 3.2 in
- normal snowfall
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 47°F | 57°F |
| Normal low | 23°F | 31°F |
| Chance of a wet day | 24% | 24% |
| Sunrise / sunset | 7:18 am / 8:03 pm | 6:30 am / 8:38 pm |
| Daylight | 12.8 h | 14.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow7 of 30
- Notable rainat least 0.10 in4 of 30
- Freezing nightslow 32°F or below25 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain and snow in April
Normal precipitation is 1.2 in; a dry April brings about 0.8 in and a wet one about 1.2 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 3.2 in, with about 2 days of an inch or more.
How April varies from year to year
- Warmest April, 1991-20201992: average high 59°F
- Coolest April2008: average high 45°F
- Wettest April2006: 5.6 in
- Driest April2015: 0.04 in
- Highest reading78°F (April 24, 2012)
- Lowest reading3°F (April 2, 2008)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 43°F | 52°F | 62°F |
| Normal low | 19°F | 27°F | 35°F |
| Wet days | 8 | 7 | 8 |
| Comfortable days | 0 | 3 | – |
| Daylight | 11.9 h | 13.4 h | 14.7 h |
Highs change by +9°F from March and +10°F into May.
Nearby alternatives in April
- Warmer: Boise, ID93 mi · high 62°F · 9 wet days
- Cooler: West Yellowstone, MT174 mi · high 47°F · 13 wet days
How Sun Valley ranks in April
- Normal high355th warmest of 378 cities; 2nd of 2 in Idaho
- Wet days133rd driest of 378
- Comfortable days309th most of 340
What to pack for Sun Valley in April
- A warm jacket – lows near 27°F, highs near 52°F
- Layers – afternoons near 52°F but nights near 27°F
- Waterproof boots – about 3.2 in of snow in a typical year
- A hat and gloves – about 25 freezing nights
Heating and cooling
April has 768 heating degree days and 0 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.
Questions
How cold is Sun Valley in April?
The normal high is 52°F and the normal low is 27°F. From 1991 to 2020 the coldest April reading was 3°F (most recently on April 2, 2008).
Does it rain a lot in Sun Valley in April?
About 7 days in April have at least 0.01 in of precipitation, and the normal total is 1.2 in. The wettest April in 1991-2020 was in 2006 (5.6 in); the driest was in 2015 (0.04 in).
Does it snow in Sun Valley in April?
Yes. Normal snowfall in April is 3.2 in.
Where the numbers come from
- Temperature, rain and snowfall: Ketchum RS (USC00104845), 1.0 mi SSW of the city center, 5,890 ft (62 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Frost dates: Bellevue (USC00100774), 17 mi SSE of the city center, 5,192 ft (760 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Stanley Ranger Station (726824-04112), 44 mi NW of the city center, 6,495 ft (543 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: snow depth, humidity and wind by hour and cloud cover (no station close enough or similar enough in elevation).