Arlington weather in March
In March, Arlington sees average daytime highs of 51°F and overnight lows near 38°F, with 7.6 in of precipitation across 19.6 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 49°F in the first days to 53°F by the end. The sky is clear or mostly clear about 15% of the time in March, and the air most often feels dry.
Daylight stretches from about 10 h 42 min at the start of March to 12 h 30 min by month's end. Set against the rest of the year, March is Arlington's 9th-clearest and 4th-windiest month. For the whole year in context, see Arlington's year-round climate.
- Daytime high
- 51°
- 8th warmest
- Overnight low
- 38°
- 4th coldest
- Precipitation
- 7.6 in
- 19.6 wet days
- Daylight
- 11 h 36 min
- 6:31 AM – 6:05 PM
- Cloud cover
- 74%
- 9th clearest
- Wind
- 6 mph
- 4th windiest
- Solar energy
- 2.88 kWh/m²
- Travel score
- 1.9
- out of 10
Arlington is city in northern Snohomish County, Washington, United States.
- Density
- 790/km²
- people per km²
- Founded
- 1903
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Highs climb over the month, from about 49°F in the first days to 53°F by the end.
A typical March day in Arlington reaches about 51°F in the afternoon and slips back to 38°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 44°F and 59°F. Set against its neighbours, March runs about 4°F warmer than February and about 5°F cooler than April.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 48 | 48 | 49 | 49 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 51 | 51 | 51 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 |
| Avg low (°F) | 36 | 36 | 37 | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 40 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 48 | 36 |
| 2 | 48 | 36 |
| 3 | 49 | 37 |
| 4 | 49 | 37 |
| 5 | 49 | 37 |
| 6 | 49 | 37 |
| 7 | 49 | 37 |
| 8 | 50 | 37 |
| 9 | 50 | 38 |
| 10 | 50 | 38 |
| 11 | 50 | 38 |
| 12 | 50 | 38 |
| 13 | 51 | 38 |
| 14 | 51 | 38 |
| 15 | 51 | 38 |
| 16 | 51 | 38 |
| 17 | 51 | 39 |
| 18 | 51 | 39 |
| 19 | 52 | 39 |
| 20 | 52 | 39 |
| 21 | 52 | 39 |
| 22 | 52 | 39 |
| 23 | 52 | 39 |
| 24 | 52 | 39 |
| 25 | 52 | 39 |
| 26 | 53 | 39 |
| 27 | 53 | 39 |
| 28 | 53 | 40 |
| 29 | 53 | 40 |
| 30 | 53 | 40 |
| 31 | 53 | 40 |
How March really feels in Arlington
Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 3 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in March is cold — wind chill drags the overnight "feels like" below the raw low.
Arlington weather by month
How March compares with the rest of the year at a glance. March is the 8th-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 44° / 36° | 9.3 | 19.1 | 5.3 | 8.6 | 0.6 |
| Feb | 47° / 36° | 6.1 | 15.5 | 4.5 | 9.9 | 1.2 |
| Mar | 51° / 38° | 7.6 | 19.6 | 3.7 | 11.6 | 1.9 |
| Apr | 56° / 42° | 5.6 | 16.4 | 1 | 13.4 | 3.2 |
| May | 62° / 47° | 3.8 | 12.1 | 0.1 | 14.9 | 5.0 |
| Jun | 66° / 51° | 2.8 | 9.8 | 0 | 15.8 | 6.0 |
| Jul | 72° / 55° | 1.3 | 5.2 | 0 | 15.5 | 7.8 |
| Aug | 73° / 55° | 1.6 | 5.5 | 0 | 14.1 | 7.8 |
| Sep | 67° / 50° | 3.4 | 8.8 | 0 | 12.4 | 6.5 |
| Oct | 57° / 44° | 7.2 | 14.9 | 0 | 10.6 | 3.7 |
| Nov | 48° / 38° | 10.4 | 19.2 | 2.2 | 9 | 1.4 |
| Dec | 43° / 35° | 9.3 | 19.2 | 6.1 | 8.2 | 0.4 |
Cloud cover in March
The sky is clear or mostly clear about 15% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 73%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 31 | 30 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 27 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Cloudier (%) | 69 | 70 | 71 | 71 | 71 | 72 | 72 | 73 | 73 | 73 | 73 | 74 | 75 | 74 | 74 | 75 | 75 | 75 | 74 | 74 | 74 | 74 | 73 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 73 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 31 | 69 |
| 2 | 30 | 70 |
| 3 | 29 | 71 |
| 4 | 29 | 71 |
| 5 | 29 | 71 |
| 6 | 28 | 72 |
| 7 | 28 | 72 |
| 8 | 27 | 73 |
| 9 | 27 | 73 |
| 10 | 27 | 73 |
| 11 | 27 | 73 |
| 12 | 26 | 74 |
| 13 | 25 | 75 |
| 14 | 26 | 74 |
| 15 | 26 | 74 |
| 16 | 25 | 75 |
| 17 | 25 | 75 |
| 18 | 25 | 75 |
| 19 | 26 | 74 |
| 20 | 26 | 74 |
| 21 | 26 | 74 |
| 22 | 26 | 74 |
| 23 | 27 | 73 |
| 24 | 28 | 72 |
| 25 | 27 | 73 |
| 26 | 27 | 73 |
| 27 | 27 | 73 |
| 28 | 27 | 73 |
| 29 | 27 | 73 |
| 30 | 27 | 73 |
| 31 | 27 | 73 |
Chance of precipitation in March
Arlington gets around 7.6 in of rain and snow over 19.6 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 62% and peaks near 65% on the wettest days, and about 4 days bring snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 58 | 59 | 59 | 59 | 60 | 61 | 62 | 62 | 63 | 63 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 65 | 65 | 64 | 64 | 63 | 63 | 62 | 62 | 61 | 61 | 60 | 60 | 60 | 59 |
| Snow chance (%) | 17 | 17 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 58 | 17 |
| 2 | 59 | 17 |
| 3 | 59 | 16 |
| 4 | 59 | 15 |
| 5 | 60 | 15 |
| 6 | 61 | 15 |
| 7 | 62 | 14 |
| 8 | 62 | 14 |
| 9 | 63 | 14 |
| 10 | 63 | 13 |
| 11 | 64 | 13 |
| 12 | 64 | 13 |
| 13 | 64 | 13 |
| 14 | 65 | 13 |
| 15 | 65 | 12 |
| 16 | 65 | 12 |
| 17 | 65 | 12 |
| 18 | 65 | 12 |
| 19 | 65 | 11 |
| 20 | 64 | 11 |
| 21 | 64 | 11 |
| 22 | 63 | 11 |
| 23 | 63 | 11 |
| 24 | 62 | 10 |
| 25 | 62 | 10 |
| 26 | 61 | 10 |
| 27 | 61 | 9 |
| 28 | 60 | 9 |
| 29 | 60 | 9 |
| 30 | 60 | 8 |
| 31 | 59 | 8 |
Humidity in March
Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 100 |
| 5 | 100 |
| 6 | 100 |
| 7 | 100 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
| 13 | 100 |
| 14 | 100 |
| 15 | 100 |
| 16 | 100 |
| 17 | 100 |
| 18 | 100 |
| 19 | 100 |
| 20 | 100 |
| 21 | 100 |
| 22 | 100 |
| 23 | 100 |
| 24 | 100 |
| 25 | 100 |
| 26 | 100 |
| 27 | 100 |
| 28 | 100 |
| 29 | 100 |
| 30 | 100 |
| 31 | 100 |
Wind in March
Winds average 6 mph in March.
Across March, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in March
Daylight runs from about 10 h 42 min at the start of March to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 108 minutes over March. Sunrise moves from 7:01 AM to 6:00 AM, and sunset from 5:42 PM to 6:27 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.7 | 10.7 | 10.8 | 10.9 | 10.9 | 11.0 | 11.0 | 11.1 | 11.1 | 11.2 | 11.3 | 11.3 | 11.4 | 11.4 | 11.5 | 11.6 | 11.6 | 11.7 | 11.7 | 11.8 | 11.9 | 11.9 | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.3 | 12.3 | 12.4 | 12.5 |
| Sunrise (AM) | 7:01 | 7:00 | 6:58 | 6:56 | 6:54 | 6:52 | 6:50 | 6:48 | 6:46 | 6:44 | 6:42 | 6:40 | 6:37 | 6:35 | 6:33 | 6:31 | 6:29 | 6:27 | 6:25 | 6:23 | 6:21 | 6:19 | 6:16 | 6:14 | 6:12 | 6:10 | 6:08 | 6:06 | 6:04 | 6:02 | 6:00 |
| Sunset (PM) | 5:42 | 5:44 | 5:45 | 5:47 | 5:48 | 5:50 | 5:51 | 5:53 | 5:54 | 5:56 | 5:57 | 5:59 | 6:01 | 6:02 | 6:04 | 6:05 | 6:07 | 6:08 | 6:10 | 6:11 | 6:13 | 6:14 | 6:16 | 6:17 | 6:19 | 6:20 | 6:22 | 6:23 | 6:24 | 6:26 | 6:27 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.7 | 7:01 | 5:42 |
| 2 | 10.7 | 7:00 | 5:44 |
| 3 | 10.8 | 6:58 | 5:45 |
| 4 | 10.9 | 6:56 | 5:47 |
| 5 | 10.9 | 6:54 | 5:48 |
| 6 | 11.0 | 6:52 | 5:50 |
| 7 | 11.0 | 6:50 | 5:51 |
| 8 | 11.1 | 6:48 | 5:53 |
| 9 | 11.1 | 6:46 | 5:54 |
| 10 | 11.2 | 6:44 | 5:56 |
| 11 | 11.3 | 6:42 | 5:57 |
| 12 | 11.3 | 6:40 | 5:59 |
| 13 | 11.4 | 6:37 | 6:01 |
| 14 | 11.4 | 6:35 | 6:02 |
| 15 | 11.5 | 6:33 | 6:04 |
| 16 | 11.6 | 6:31 | 6:05 |
| 17 | 11.6 | 6:29 | 6:07 |
| 18 | 11.7 | 6:27 | 6:08 |
| 19 | 11.7 | 6:25 | 6:10 |
| 20 | 11.8 | 6:23 | 6:11 |
| 21 | 11.9 | 6:21 | 6:13 |
| 22 | 11.9 | 6:19 | 6:14 |
| 23 | 12.0 | 6:16 | 6:16 |
| 24 | 12.0 | 6:14 | 6:17 |
| 25 | 12.1 | 6:12 | 6:19 |
| 26 | 12.2 | 6:10 | 6:20 |
| 27 | 12.2 | 6:08 | 6:22 |
| 28 | 12.3 | 6:06 | 6:23 |
| 29 | 12.3 | 6:04 | 6:24 |
| 30 | 12.4 | 6:02 | 6:26 |
| 31 | 12.5 | 6:00 | 6:27 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 2.88 kWh/m².
For context, solar energy here swings from a low near 0.83 kWh/m² to a high of 6.16 kWh/m² in July across the year — March's 2.88 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.4 | 2.4 | 2.4 | 2.4 | 2.5 | 2.5 | 2.5 | 2.5 | 2.6 | 2.6 | 2.6 | 2.7 | 2.7 | 2.8 | 2.8 | 2.9 | 2.9 | 3.0 | 3.0 | 3.1 | 3.1 | 3.2 | 3.2 | 3.3 | 3.3 | 3.4 | 3.4 | 3.4 | 3.5 | 3.5 | 3.6 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.4 | Moderate |
| 2 | 2.4 | Moderate |
| 3 | 2.4 | Moderate |
| 4 | 2.4 | Moderate |
| 5 | 2.5 | Moderate |
| 6 | 2.5 | Moderate |
| 7 | 2.5 | Moderate |
| 8 | 2.5 | Moderate |
| 9 | 2.6 | Moderate |
| 10 | 2.6 | Moderate |
| 11 | 2.6 | Moderate |
| 12 | 2.7 | Moderate |
| 13 | 2.7 | Moderate |
| 14 | 2.8 | Moderate |
| 15 | 2.8 | Moderate |
| 16 | 2.9 | Moderate |
| 17 | 2.9 | Moderate |
| 18 | 3.0 | Moderate |
| 19 | 3.0 | Moderate |
| 20 | 3.1 | Moderate |
| 21 | 3.1 | Moderate |
| 22 | 3.2 | Moderate |
| 23 | 3.2 | Moderate |
| 24 | 3.3 | Moderate |
| 25 | 3.3 | Moderate |
| 26 | 3.4 | Moderate |
| 27 | 3.4 | Moderate |
| 28 | 3.4 | Moderate |
| 29 | 3.5 | Moderate |
| 30 | 3.5 | Moderate |
| 31 | 3.6 | Moderate |
Hazard calendar for Arlington
In March, Arlington sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Arlington's rainy season runs October–April, when most of the year's rain falls.
Is March a good time to visit Arlington?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a weaker month for outdoor sightseeing in Arlington.
What to pack for Arlington in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Arlington sees daytime highs around 51°F and nights near 38°F. Pack a warm layer and rain gear. About 20 days see rain.
Sea temperature near Arlington in March
The nearest coast averages about 47°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 35 mi away) is warmest in August at about 53°F and coldest in February near 46°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 46 | 46 | 47 | 48 | 50 | 52 | 53 | 53 | 53 | 50 | 49 | 47 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 46 | Bracing |
| Feb | 46 | Bracing |
| Mar | 47 | Bracing |
| Apr | 48 | Bracing |
| May | 50 | Bracing |
| Jun | 52 | Bracing |
| Jul | 53 | Bracing |
| Aug | 53 | Bracing |
| Sep | 53 | Bracing |
| Oct | 50 | Bracing |
| Nov | 49 | Bracing |
| Dec | 47 | Bracing |
UV index in Arlington in March
Clear-sky midday UV in March peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Arlington peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 4 | 5 | 7 | 6 | 8 | 6 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Arlington in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Arlington is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 10 | 12 | 12 | 13 | 11 | 10 | 20 | 18 | 11 | 7 | 6 |
| Level | Good | Good | Moderate | Good | Moderate | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 10 | Good |
| Mar | 12 | Moderate |
| Apr | 12 | Good |
| May | 13 | Moderate |
| Jun | 11 | Good |
| Jul | 10 | Good |
| Aug | 20 | Moderate |
| Sep | 18 | Moderate |
| Oct | 11 | Good |
| Nov | 7 | Good |
| Dec | 6 | Good |
Where is Arlington?
Arlington sits at 48.2°N, 122.1°W, 115 ft above sea level, in United States. The nearest listed city is Marysville, 11 mi away.
Topography around Arlington
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Arlington.
Within 2 miles, the terrain around Arlington has only modest variations in elevation — a maximum elevation change of 479 ft around an average of 157 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,297 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,755 ft.
The land around Arlington is covered by trees (51%) and grassland (32%) within 2 miles, trees (76%) within 10 miles, and trees (66%) and water (21%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Arlington (48.1987°, -122.1251°, elevation 115 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).