Everett, WA weather in September
September in Everett: mild, with some rain. Highs 70°F, lows 50°F, about 9 wet days. A great month for outdoor plans.
- Normal high
- 70°F
- Normal low
- 50°F
- Wet days
- 9
- 1.7 in total
- Muggy days
- 0
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 74°F | 66°F |
| Normal low | 53°F | 47°F |
| Chance of a wet day | 25% | 34% |
| Sunrise / sunset | 6:27 am / 7:50 pm | 7:06 am / 6:50 pm |
| Daylight | 13.4 h | 11.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical September day
- 6 am56°Fdew point 51°F
- 9 am61°Fdew point 52°F
- Noon67°Fdew point 52°F
- 3 pm70°Fdew point 50°F
- 6 pm67°Fdew point 50°F
- 9 pm62°Fdew point 51°F
NOAA hourly normals (local standard time) from Seattle Boeing Fld (31 mi away); average wind 5 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F24 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph2 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow9 of 30
- Notable rainat least 0.10 in5 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 1.7 in; a dry September brings about 0.8 in and a wet one about 2.0 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How September varies from year to year
- Warmest September, 1991-20202009: average high 73°F
- Coolest September1992: average high 66°F
- Wettest September2013: 5.0 in
- Driest September1991: 0.02 in
- Highest reading89°F (September 8, 2020)
- Lowest reading31°F (September 6, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 76°F | 70°F | 61°F |
| Normal low | 55°F | 50°F | 43°F |
| Wet days | 6 | 9 | 15 |
| Comfortable days | 25 | 24 | 8 |
| Daylight | 14.3 h | 12.6 h | 10.8 h |
Highs change by -6°F from August and -9°F into October.
Nearby alternatives in September
- Warmer: Leavenworth, WA76 mi · high 78°F · 4 wet days
- Drier: Leavenworth, WA76 mi · high 78°F · 4 wet days
How Everett ranks in September
- Normal high348th warmest of 378 cities; 7th of 9 in Washington
- Wet days238th driest of 378
- Comfortable days1st most of 342
What to pack for Everett in September
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
September has 159 heating degree days and 9 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Everett in September?
The normal high is 70°F and the normal low is 50°F. From 1991 to 2020 the hottest September reading was 89°F (September 8, 2020).
Does it rain a lot in Everett in September?
About 9 days in September have at least 0.01 in of precipitation, and the normal total is 1.7 in. The wettest September in 1991-2020 was in 2013 (5.0 in); the driest was in 1991 (0.02 in).
Is September a good time to visit Everett?
September ranks 4th of 12 months on our comfort score for Everett (82 out of 100). It has about 24 comfortable days. The best months are July and August.
Where the numbers come from
- Temperature and frost dates: Everett (USC00452675), 0.4 mi SE of the city center, 60 ft . NOAA normals and daily records, 1991-2020.
- Rain, snowfall and snow depth: Seattle Sand Pt WSFO (USW00094290), 20 mi S of the city center, 60 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Seattle Boeing Fld (USW00024234), 31 mi S of the city center, 20 ft (64 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Boeing Fld/King Co Intl Airport (727935-24234), 30 mi S of the city center, 25 ft (59 ft lower than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).