Palmyra, Utah Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Palmyra weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——86°59°—
- FridayJun 5Overcast——90°58°+4°
- SaturdayJun 6Overcast——90°63°0°
- SundayJun 7Overcast——80°59°-10°
- MondayJun 8Overcast——85°58°+5°
- TuesdayJun 9Drizzle—0.04″77°53°-8°
- WednesdayJun 10Heavy Drizzle12%0.24″61°51°-16°
Ozone at AQI 66 — peak already passed at 1 PM under clear skies. AQI up 24 in the last 6 hours — air quality is degrading. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 66 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 66
- UV peak
- 3.2 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 66
PM × Wind × Precip
PM10 at 24.7 µg/m³ (AQI 23) with a 0.32 fine-to-coarse ratio under 15 mph wind — coarse road or agricultural dust being kicked up.
- PM2.5/PM10
- 0.32
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- blown dust
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:57 AM
- Moonset
- 3:32 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Palmyra at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 4, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Palmyra's warmest month is July (~79°F mean) and its coldest is January (~33°F). Rainfall peaks in May (2.0 inches) and bottoms out in July (0.5 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 33° | 1.9″ | 6 |
| February | 38° | 1.6″ | 5 |
| March | 47° | 1.6″ | 5 |
| April | 53° | 1.9″ | 6 |
| May | 62° | 2.0″ | 5 |
| June | 71° | 0.9″ | 2 |
| July | 79° | 0.5″ | 2 |
| August | 77° | 0.7″ | 2 |
| September | 68° | 1.2″ | 3 |
| October | 55° | 1.6″ | 4 |
| November | 42° | 1.4″ | 4 |
| December | 33° | 1.8″ | 5 |
Frequently asked
- When does it freeze in Palmyra?
- Palmyra's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Palmyra?
- May is the wettest month with about 2.0 inches of rain on average; the city receives roughly 17 inches annually.
- What is the warmest month in Palmyra?
- July is typically warmest, averaging about 79°F.
- What is the coldest month in Palmyra?
- January is typically coldest, averaging about 33°F.
- When can I start a vegetable garden in Palmyra?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Palmyra get?
- Palmyra averages about 49 rainy days per year.
- What hardiness zone is Palmyra?
- Palmyra's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Palmyra, Utah sits in a cold semi-arid climate zone. January means hover near 33°F while July averages 79°F — a 46°F seasonal swing.
Across the year, Palmyra receives about 17 inches of precipitation spread over roughly 49 rainy days.
The rhythm of the year is set by latitude (40.1°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.