Weather in Salt Lake City in April
United States · 20-year averages, April
Shoulder season. April is shoulder season in Salt Lake City — cheaper, quieter, and a genuine gamble. Highs sit at 14.9 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
April ranks 6 of 12 in Salt Lake City: past the worst of the year but short of September, which is the month to book if the dates are open.
Rain on 12 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 14.9 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
Averages flatten a month, and this one hides a few things: 5 nights fall below freezing. Across the twenty years measured, the hottest April day reached 30 °C and the coldest night fell to -7.6 °C.
April is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest April on record still delivered 141 mm against 19 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 66 mm average is a reasonable planning figure, not a promise.
Wind is light at 5.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 61%.
How April sits in the year
The month is on the way up: 4 °C warmer than March, and May adds another 5.9 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in April
13.3 hours of daylight, gaining 1.3 hours across the month. That is between Salt Lake City's extremes of 15.1 and 9.3 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 39.5 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage. At 1299 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
April in Salt Lake City versus nearby
If Salt Lake City is one option among several, the nearby comparison is worth making. Park City is the weaker option in April — 5 °C cooler, the same number of rain days. Moab is a better bet in April — 5.6 °C warmer, 7 days less rain.
So: April is a compromise. September is 26 points better and is what Salt Lake City is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Salt Lake City
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 3 | -5.9 | 11 | 55 | 84 | 9.6 | 22 |
| February | 5.1 | -3.7 | 10 | 45 | 78 | 10.6 | 29 |
| March | 10.9 | 1 | 11 | 54 | 67 | 11.9 | 52 |
| April | 14.9 | 3.4 | 12 | 66 | 61 | 13.3 | 63 |
| May | 20.8 | 8.3 | 10 | 58 | 55 | 14.4 | 81 |
| June | 27.6 | 13.5 | 5 | 30 | 45 | 15.1 | 88 |
| July | 33.6 | 19 | 5 | 17 | 39 | 14.8 | 62 |
| August | 32.2 | 17.9 | 6 | 24 | 38 | 13.8 | 67 |
| September | 26.6 | 13.1 | 6 | 38 | 42 | 12.5 | 89 |
| October | 18 | 6.4 | 8 | 46 | 53 | 11.2 | 79 |
| November | 10.1 | 0.7 | 9 | 46 | 65 | 10 | 53 |
| December | 3.1 | -5.4 | 12 | 65 | 81 | 9.3 | 21 |
See all twelve months in Salt Lake City, or where else to go in April.
Planning the rest of the trip
- Flight time to Salt Lake City how long you are actually in the air
- Salt Lake City time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Salt Lake City keep training while you are there