Frederickson, Washington Weather
Fireweed Ignites. Day 14 of summer. Read this microseason across nine climate regions →
Frederickson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——72°55°—
- SundayJul 5Overcast——75°54°+3°
- MondayJul 6Overcast——85°48°+10°
- TuesdayJul 7Overcast——82°49°-3°
- WednesdayJul 8Light Drizzle—0.02″70°56°-12°
- ThursdayJul 9Clear——78°46°+8°
- FridayJul 10Clear——85°48°+7°
AQI 22 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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
- 11:17 PM
- Moonset
- 10:12 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Frederickson at a glance
- Today vs. normal: 64°F — typical for the season
- Last frost: May 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Frederickson
- Sat73°55°1%
- Sun75°54°0%
- Mon85°48°0%
- Tue82°49°1%
- Wed70°56°6%
- Thu78°46°3%
- Fri85°48°4%
- Sat85°52°9%
- Sun91°59°6%
- Mon94°57°5%
- Tue87°54°5%
- Wed82°47°3%
- Thu97°54°0%
- Fri98°60°0%
- Sat103°60°0%
- Sun95°63°0%
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.
Microseason · July 1–5
Fireweed Ignites
Magenta fireweed spires surge from burned and cleared slopes, their blooms climbing from base upward. July's signature color claims the disturbed ground.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Frederickson's warmest month is August (~65°F mean) and its coldest is December (~39°F). Rainfall peaks in November (7.1 inches) and bottoms out in August (0.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 40° | 6.1″ | 14 |
| February | 41° | 4.3″ | 10 |
| March | 44° | 4.8″ | 13 |
| April | 48° | 3.9″ | 11 |
| May | 54° | 3.0″ | 8 |
| June | 59° | 2.3″ | 6 |
| July | 64° | 0.9″ | 3 |
| August | 65° | 0.9″ | 2 |
| September | 59° | 1.8″ | 4 |
| October | 50° | 4.1″ | 9 |
| November | 43° | 7.1″ | 14 |
| December | 39° | 6.0″ | 14 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Frederickson sees 40°F Januarys and 64°F Julys, a 24°F range, plus around 45.1 inches of precipitation across 110 days.
Cool-season fronts carry Frederickson's rain: November logs 7.1 inches on 14.1 days, against August's 0.9 inches on 2.2 — winter does the heavy lifting in Frederickson. That groups Frederickson with places like Spanaway, WA, Summit View, WA and Elk Plain, WA on the same cool-season storm track.
Frederickson's growing window opens around late-May, once Frederickson's overnight lows stop freezing — sow peas, lettuce, spinach, and radishes. Hold Frederickson's tender crops — tomatoes, peppers, basil — until 10-14 days past Frederickson's last frost. Frederickson's window closes around early-October as overnight lows return below freezing. Within Frederickson, cold-air pooling chills low spots by 5-10°F, shifting Frederickson's local frost dates.
Similar climates: Spanaway, WA, Summit View, WA, Elk Plain, WA, Clover Creek, WA, South Hill, WA.
Frequently asked
- When does it freeze in Frederickson?
- Frost typically leaves Frederickson by mid-May and returns to Frederickson near mid-October.
- What is the rainy season in Frederickson?
- Rainfall in Frederickson peaks in November near 7.1 inches, out of about 45 inches annually.
- What is the warmest month in Frederickson?
- On average August tops the year in Frederickson at about 65°F.
- What is the coldest month in Frederickson?
- The coldest stretch in Frederickson falls in December, around 39°F on average.
- When can I start a vegetable garden in Frederickson?
- In Frederickson, sow peas and hardy greens around mid-May; Frederickson's tomatoes and peppers wait two weeks more.
- How many rainy days does Frederickson get?
- Expect roughly 110 wet days a year in Frederickson.
- What hardiness zone is Frederickson?
- Since December in Frederickson averages 39°F, Frederickson's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Frederickson?
- Frederickson'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 Frederickson?
- See this week's day-by-day rain chances for Frederickson in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Frederickson?
- Current conditions for Frederickson and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Frederickson forecast updated?
- The Frederickson forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Frederickson?
- Today's sunrise and sunset times for Frederickson 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 Frederickson?
- The next few days in Frederickson's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The warm-summer Mediterranean climate of Frederickson, Washington carries typical Januarys near 40°F and Julys around 64°F — 24°F of seasonal travel.
Yearly precipitation in Frederickson totals around 45 inches, spread over about 110 days of rain or snow.
From 47.1°N, Frederickson sees a 24°F seasonal swing that governs Frederickson's planting and frost windows.
ZIP codes in Frederickson
- 98387
- 98375
- 98446