Washington Terrace, Utah Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Washington Terrace weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear——93°62°—
- SundayJul 5Overcast——98°70°+5°
- MondayJul 6Overcast——97°69°-1°
- TuesdayJul 7Overcast——97°67°0°
- WednesdayJul 8Overcast——98°66°+1°
- ThursdayJul 9Mostly Clear——95°61°-3°
- FridayJul 10Clear——98°62°+3°
AQI 34 (Good), driven by PM2.5. AQI down 14 over the last 6 hours (gradual decline). PM2.5 at 8.0 µg/m³ (AQI 44) with a 0.86 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 8.0 µg/m³ (AQI 44) with a 0.86 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:26 PM
- Moonset
- 10:36 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Washington Terrace at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Washington Terrace
- Sat93°59°0%
- Sun98°70°0%
- Mon97°69°5%
- Tue97°67°8%
- Wed98°66°3%
- Thu95°61°1%
- Fri98°62°0%
- Sat106°65°3%
- Sun103°71°4%
- Mon101°68°6%
- Tue100°68°7%
- Wed102°69°10%
- Thu103°67°11%
- Fri100°70°14%
- Sat101°71°13%
- Sun101°67°11%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Washington Terrace
SPC includes Washington Terrace in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · July 1–5
Monsoon storms drench the south
Monsoon established in southern Mountain West (New Mexico, southern Utah, Arizona north); afternoon downpours and lightning common.
Day 185 of 365 · Wedge 37 of 72
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
The year in Washington Terrace tops out in July (~79°F) and dips lowest in December (~26°F), with March wettest at 2.5 inches and June driest at 0.6 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 26° | 2.1″ | 16 |
| February | 30° | 2.0″ | 13 |
| March | 36° | 2.5″ | 16 |
| April | 45° | 2.4″ | 17 |
| May | 57° | 2.1″ | 14 |
| June | 68° | 0.6″ | 6 |
| July | 79° | 0.6″ | 5 |
| August | 77° | 0.7″ | 5 |
| September | 66° | 1.1″ | 6 |
| October | 51° | 1.5″ | 8 |
| November | 36° | 2.2″ | 14 |
| December | 26° | 2.4″ | 18 |
Regional context
In Washington Terrace, NOAA NCEI 1991-2020 normals put January near 26°F and July near 79°F — a 53°F seasonal arc — with about 20.1 inches of precipitation over 139 rainy or snowy days.
Washington Terrace's moisture rides winter storm tracks: March brings 2.5 inches over 16.1 wet days, while June sees only 0.6 inches across 5.8 days in the dry warm season. That groups Washington Terrace with places like South Ogden, UT, Riverdale, UT and Uintah, UT on the same cool-season storm track.
Washington Terrace reaches its last hard frost near mid-April; that is the cue for kale, peas, spinach, and parsnips. Washington Terrace's heat-lovers — tomatoes, peppers, squash — hold off until Washington Terrace's frost risk clears, 10-14 days on. The season ends by mid-November in Washington Terrace, once hard frosts set back in. A creek-bottom lot in Washington Terrace can lag Washington Terrace's last frost 7-10 days behind a south slope.
Similar climates: South Ogden, UT, Riverdale, UT, Uintah, UT, South Weber, UT, Sunset, UT.
Frequently asked
- When does it freeze in Washington Terrace?
- Washington Terrace's last spring frost lands near mid-April, and in Washington Terrace the first fall frost follows around mid-November.
- What is the rainy season in Washington Terrace?
- March is the wettest month in Washington Terrace, about 2.5 inches on average; the year totals roughly 20 inches.
- What is the warmest month in Washington Terrace?
- Washington Terrace peaks in July, when the mean runs near 79°F.
- What is the coldest month in Washington Terrace?
- December is Washington Terrace's coldest month, averaging about 26°F.
- When can I start a vegetable garden in Washington Terrace?
- Around mid-April, start frost-hardy crops in Washington Terrace; tomatoes and basil belong a fortnight later.
- How many rainy days does Washington Terrace get?
- Washington Terrace averages about 139 days with measurable rain or snow each year.
- What hardiness zone is Washington Terrace?
- Because Washington Terrace bottoms near 26°F in December, that winter low sets Washington Terrace's USDA zone — verify by ZIP.
- What is the 10-day forecast for Washington Terrace?
- Washington Terrace's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Washington Terrace?
- See this week's day-by-day rain chances for Washington Terrace in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Washington Terrace?
- Current conditions for Washington Terrace and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Washington Terrace forecast updated?
- The Washington Terrace forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Washington Terrace?
- Today's sunrise and sunset times for Washington Terrace are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Washington Terrace?
- The next few days in Washington Terrace's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a cold semi-arid zone, Washington Terrace, Utah swings from 26°F in the heart of winter to 79°F at midsummer — a 53°F arc.
In a typical year Washington Terrace records about 20 inches of precipitation on around 139 days.
Washington Terrace's 53°F range, set by its 41.2°N position, drives frost timing and what thrives in Washington Terrace.
ZIP codes in Washington Terrace
- 84405