Climate averages 1991–2020
Salt Lake City weather
in May.
A mild, moderately wet month: the 5th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Salt Lake City: daytime highs average 20.1°C and nights cool to about 7.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 56 mm of rain on roughly 9 days, which makes May a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 26 min on an average May day.
The nearest other city in this atlas is West Valley City (12 km away). In May its highs average 20.4°C, about as warm as Salt Lake City, with 56 mm of rain.
Among the 498 cities listed in the United States, Salt Lake City ranks joint 374th of 498 for the warmest May highs and joint 151st of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Salt Lake City is 3.7°C cooler than that mean.
From May to June, average highs rise by 6.4°C to 26.6°C, and monthly rainfall falls from 56 mm to 27 mm.
The annual picture
May in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Salt Lake City climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.0°C-7.3°C | -7.3°C | 52 | 9.7 | 9.610 h |
| February | 4.2°C-5.2°C | -5.2°C | 45 | 8.2 | 10.611 h |
| March | 9.6°C-1.4°C | -1.4°C | 50 | 9.5 | 11.912 h |
| April | 14.1°C2.8°C | 2.8°C | 67 | 11.2 | 13.313 h |
| May, selected | 20.1°C7.7°C | 7.7°C | 56 | 9.1 | 14.414 h |
| June | 26.6°C12.9°C | 12.9°C | 27 | 4.4 | 15.015 h |
| July | 32.4°C17.7°C | 17.7°C | 11 | 2.8 | 14.815 h |
| August | 31.4°C17.3°C | 17.3°C | 12 | 3.4 | 13.814 h |
| September | 25.3°C12.1°C | 12.1°C | 34 | 4.7 | 12.513 h |
| October | 17.0°C5.4°C | 5.4°C | 45 | 6.6 | 11.211 h |
| November | 8.7°C-1.8°C | -1.8°C | 44 | 8.2 | 10.010 h |
| December | 2.3°C-7.3°C | -7.3°C | 49 | 8.9 | 9.39 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- West Valley City in MayUnited States · 12 kmHigh 20.4°C · Low 7.9°C · 56 mm rain
- West Jordan in MayUnited States · 17 kmHigh 20.8°C · Low 7.2°C · 48 mm rain
- Layton in MayUnited States · 34 kmHigh 19.3°C · Low 7.2°C · 56 mm rain
- Ogden in MayUnited States · 52 kmHigh 19.6°C · Low 7.4°C · 59 mm rain
- Orem in MayUnited States · 54 kmHigh 19.3°C · Low 7.3°C · 43 mm rain
- Provo in MayUnited States · 62 kmHigh 19.5°C · Low 8.1°C · 43 mm rain
- Saint George in MayUnited States · 432 kmHigh 28.1°C · Low 15.7°C · 8.5 mm rain
- Boise in MayUnited States · 476 kmHigh 21.6°C · Low 8.5°C · 31 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Salt Lake City) is explained once on the Salt Lake City year overview and on the Sources, method and limits page.
West Valley City lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.