Rowland Heights weather in October
In October, Rowland Heights sees average daytime highs of 79°F and overnight lows near 58°F, with 0.6 in of rain across 2.1 wet days and about 11.1 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.
Highs ease over the month, from about 82°F in the first days to 75°F by the end. The sky is clear or mostly clear about 74% of the time in October, and the air most often feels dry.
Daylight stretches from about 11 h 42 min at the start of October to 10 h 36 min by month's end. Set against the rest of the year, October is Rowland Heights's 5th-clearest and 11th-windiest month. For the whole year in context, see Rowland Heights's year-round climate.
- Daytime high
- 79°
- 5th warmest
- Overnight low
- 58°
- 8th coldest
- Rainfall
- 0.6 in
- 2.1 wet days
- Daylight
- 11 h 06 min
- 6:03 AM – 5:11 PM
- Cloud cover
- 25%
- 5th clearest
- Wind
- 3 mph
- 11th windiest
- Solar energy
- 4.74 kWh/m²
- Travel score
- 8.6
- out of 10
Rowland Heights is census-designated place in Los Angeles County, California, United States.
- Density
- 1,446/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Highs ease over the month, from about 82°F in the first days to 75°F by the end.
A typical October day in Rowland Heights reaches about 79°F in the afternoon and slips back to 58°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 68°F and 90°F. Set against its neighbours, October runs about 6°F cooler than September and about 8°F warmer than November.
| 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) | 82 | 82 | 82 | 82 | 81 | 81 | 81 | 80 | 80 | 80 | 80 | 80 | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 78 | 77 | 77 | 77 | 76 | 76 | 76 | 76 | 75 | 75 | 75 |
| Avg low (°F) | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 82 | 61 |
| 2 | 82 | 60 |
| 3 | 82 | 60 |
| 4 | 82 | 60 |
| 5 | 81 | 60 |
| 6 | 81 | 60 |
| 7 | 81 | 60 |
| 8 | 80 | 59 |
| 9 | 80 | 59 |
| 10 | 80 | 59 |
| 11 | 80 | 59 |
| 12 | 80 | 59 |
| 13 | 79 | 58 |
| 14 | 79 | 58 |
| 15 | 79 | 58 |
| 16 | 79 | 58 |
| 17 | 78 | 58 |
| 18 | 78 | 58 |
| 19 | 78 | 57 |
| 20 | 78 | 57 |
| 21 | 78 | 57 |
| 22 | 77 | 57 |
| 23 | 77 | 56 |
| 24 | 77 | 56 |
| 25 | 76 | 56 |
| 26 | 76 | 56 |
| 27 | 76 | 56 |
| 28 | 76 | 55 |
| 29 | 75 | 55 |
| 30 | 75 | 55 |
| 31 | 75 | 55 |
Rowland Heights weather by month
How October compares with the rest of the year at a glance. October is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 64° / 46° | 3.3 | 5.8 | 10 | 6.7 |
| Feb | 65° / 47° | 3.5 | 6.4 | 10.7 | 6.6 |
| Mar | 67° / 49° | 2.2 | 5.9 | 11.7 | 7.0 |
| Apr | 71° / 52° | 0.9 | 3.2 | 12.8 | 8.0 |
| May | 75° / 56° | 0.4 | 2.1 | 13.7 | 8.7 |
| Jun | 80° / 60° | 0.1 | 0.4 | 14.2 | 8.8 |
| Jul | 85° / 64° | 0.1 | 0.4 | 14 | 7.1 |
| Aug | 87° / 65° | 0.0 | 0.1 | 13.3 | 6.5 |
| Sep | 85° / 63° | 0.1 | 0.5 | 12.2 | 7.2 |
| Oct | 79° / 58° | 0.6 | 2.1 | 11.1 | 8.6 |
| Nov | 71° / 51° | 0.8 | 2.5 | 10.2 | 8.2 |
| Dec | 64° / 46° | 2.2 | 5 | 9.8 | 6.8 |
Cloud cover in October
The sky is clear or mostly clear about 74% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to cloud over as the month goes on.
| 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 (%) | 90 | 90 | 90 | 90 | 89 | 89 | 89 | 89 | 88 | 88 | 88 | 87 | 86 | 86 | 86 | 84 | 84 | 82 | 82 | 81 | 81 | 80 | 79 | 79 | 79 | 79 | 79 | 79 | 78 | 78 | 78 |
| Cloudier (%) | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 16 | 16 | 18 | 18 | 19 | 19 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 90 | 10 |
| 2 | 90 | 10 |
| 3 | 90 | 10 |
| 4 | 90 | 10 |
| 5 | 89 | 11 |
| 6 | 89 | 11 |
| 7 | 89 | 11 |
| 8 | 89 | 11 |
| 9 | 88 | 12 |
| 10 | 88 | 12 |
| 11 | 88 | 12 |
| 12 | 87 | 13 |
| 13 | 86 | 14 |
| 14 | 86 | 14 |
| 15 | 86 | 14 |
| 16 | 84 | 16 |
| 17 | 84 | 16 |
| 18 | 82 | 18 |
| 19 | 82 | 18 |
| 20 | 81 | 19 |
| 21 | 81 | 19 |
| 22 | 80 | 20 |
| 23 | 79 | 21 |
| 24 | 79 | 21 |
| 25 | 79 | 21 |
| 26 | 79 | 21 |
| 27 | 79 | 21 |
| 28 | 79 | 21 |
| 29 | 78 | 22 |
| 30 | 78 | 22 |
| 31 | 78 | 22 |
Chance of precipitation in October
Rowland Heights gets around 0.6 in of rain over 2.1 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 6% and peaks near 8% on the wettest days.
| 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 (%) | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 |
| Rain chance (%) | |
|---|---|
| 1 | 4 |
| 2 | 4 |
| 3 | 4 |
| 4 | 4 |
| 5 | 5 |
| 6 | 5 |
| 7 | 5 |
| 8 | 6 |
| 9 | 6 |
| 10 | 6 |
| 11 | 6 |
| 12 | 6 |
| 13 | 6 |
| 14 | 6 |
| 15 | 6 |
| 16 | 6 |
| 17 | 6 |
| 18 | 6 |
| 19 | 7 |
| 20 | 7 |
| 21 | 7 |
| 22 | 7 |
| 23 | 7 |
| 24 | 7 |
| 25 | 7 |
| 26 | 7 |
| 27 | 8 |
| 28 | 8 |
| 29 | 8 |
| 30 | 8 |
| 31 | 8 |
Humidity in October
Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the dry band about 75% 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 (%) | 57 | 58 | 61 | 62 | 63 | 66 | 67 | 67 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 75 | 76 | 77 | 78 | 78 | 79 | 81 | 82 | 84 | 86 | 87 | 88 | 89 | 91 | 92 | 92 |
| Comfortable (%) | 38 | 37 | 35 | 34 | 33 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 22 | 21 | 20 | 20 | 19 | 18 | 17 | 16 | 14 | 13 | 12 | 11 | 9 | 8 | 8 |
| Humid (%) | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 57 | 38 | 5 | 0 |
| 2 | 58 | 37 | 5 | 0 |
| 3 | 61 | 35 | 4 | 0 |
| 4 | 62 | 34 | 4 | 0 |
| 5 | 63 | 33 | 4 | 0 |
| 6 | 66 | 31 | 3 | 0 |
| 7 | 67 | 30 | 3 | 0 |
| 8 | 67 | 29 | 3 | 1 |
| 9 | 69 | 28 | 2 | 1 |
| 10 | 70 | 27 | 2 | 1 |
| 11 | 71 | 26 | 2 | 1 |
| 12 | 72 | 25 | 2 | 1 |
| 13 | 73 | 24 | 2 | 1 |
| 14 | 74 | 24 | 1 | 1 |
| 15 | 75 | 23 | 1 | 1 |
| 16 | 75 | 23 | 1 | 1 |
| 17 | 76 | 22 | 1 | 1 |
| 18 | 77 | 21 | 1 | 1 |
| 19 | 78 | 20 | 1 | 1 |
| 20 | 78 | 20 | 1 | 1 |
| 21 | 79 | 19 | 1 | 1 |
| 22 | 81 | 18 | 0 | 1 |
| 23 | 82 | 17 | 0 | 1 |
| 24 | 84 | 16 | 0 | 0 |
| 25 | 86 | 14 | 0 | 0 |
| 26 | 87 | 13 | 0 | 0 |
| 27 | 88 | 12 | 0 | 0 |
| 28 | 89 | 11 | 0 | 0 |
| 29 | 91 | 9 | 0 | 0 |
| 30 | 92 | 8 | 0 | 0 |
| 31 | 92 | 8 | 0 | 0 |
Wind in October
Winds average 3 mph in October.
Across October, daily wind ranges from about 3 mph on the calmest days to 3 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) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 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 | 3 | calm |
| 2 | 3 | calm |
| 3 | 3 | calm |
| 4 | 3 | calm |
| 5 | 3 | calm |
| 6 | 3 | calm |
| 7 | 3 | calm |
| 8 | 3 | calm |
| 9 | 3 | calm |
| 10 | 3 | calm |
| 11 | 3 | calm |
| 12 | 3 | calm |
| 13 | 3 | calm |
| 14 | 3 | calm |
| 15 | 3 | calm |
| 16 | 3 | calm |
| 17 | 3 | calm |
| 18 | 3 | calm |
| 19 | 3 | calm |
| 20 | 3 | calm |
| 21 | 3 | calm |
| 22 | 3 | calm |
| 23 | 3 | calm |
| 24 | 3 | calm |
| 25 | 3 | calm |
| 26 | 3 | calm |
| 27 | 3 | calm |
| 28 | 3 | calm |
| 29 | 3 | calm |
| 30 | 3 | calm |
| 31 | 3 | calm |
Sunrise & sunset in October
Daylight runs from about 11 h 42 min at the start of October to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 66 minutes over October. Sunrise moves from 5:51 AM to 6:16 AM, and sunset from 5:31 PM to 4:55 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) | 11.7 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 | 11.3 | 11.3 | 11.3 | 11.2 | 11.2 | 11.2 | 11.1 | 11.1 | 11.1 | 11.0 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.6 |
| Sunrise (AM) | 5:51 | 5:51 | 5:52 | 5:53 | 5:54 | 5:54 | 5:55 | 5:56 | 5:57 | 5:58 | 5:58 | 5:59 | 6:00 | 6:01 | 6:02 | 6:03 | 6:03 | 6:04 | 6:05 | 6:06 | 6:07 | 6:08 | 6:09 | 6:09 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:15 | 6:16 |
| Sunset (PM) | 5:31 | 5:29 | 5:28 | 5:26 | 5:25 | 5:24 | 5:22 | 5:21 | 5:20 | 5:18 | 5:17 | 5:16 | 5:14 | 5:13 | 5:12 | 5:11 | 5:10 | 5:08 | 5:07 | 5:06 | 5:05 | 5:04 | 5:03 | 5:02 | 5:00 | 4:59 | 4:58 | 4:57 | 4:56 | 4:55 | 4:55 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 5:51 | 5:31 |
| 2 | 11.6 | 5:51 | 5:29 |
| 3 | 11.6 | 5:52 | 5:28 |
| 4 | 11.6 | 5:53 | 5:26 |
| 5 | 11.5 | 5:54 | 5:25 |
| 6 | 11.5 | 5:54 | 5:24 |
| 7 | 11.5 | 5:55 | 5:22 |
| 8 | 11.4 | 5:56 | 5:21 |
| 9 | 11.4 | 5:57 | 5:20 |
| 10 | 11.3 | 5:58 | 5:18 |
| 11 | 11.3 | 5:58 | 5:17 |
| 12 | 11.3 | 5:59 | 5:16 |
| 13 | 11.2 | 6:00 | 5:14 |
| 14 | 11.2 | 6:01 | 5:13 |
| 15 | 11.2 | 6:02 | 5:12 |
| 16 | 11.1 | 6:03 | 5:11 |
| 17 | 11.1 | 6:03 | 5:10 |
| 18 | 11.1 | 6:04 | 5:08 |
| 19 | 11.0 | 6:05 | 5:07 |
| 20 | 11.0 | 6:06 | 5:06 |
| 21 | 11.0 | 6:07 | 5:05 |
| 22 | 10.9 | 6:08 | 5:04 |
| 23 | 10.9 | 6:09 | 5:03 |
| 24 | 10.9 | 6:09 | 5:02 |
| 25 | 10.8 | 6:10 | 5:00 |
| 26 | 10.8 | 6:11 | 4:59 |
| 27 | 10.8 | 6:12 | 4:58 |
| 28 | 10.7 | 6:13 | 4:57 |
| 29 | 10.7 | 6:14 | 4:56 |
| 30 | 10.7 | 6:15 | 4:55 |
| 31 | 10.6 | 6:16 | 4:55 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 4.74 kWh/m².
For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 8.03 kWh/m² in June across the year — October's 4.74 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) | 5.5 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.1 | 5.1 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 | 4.7 | 4.7 | 4.6 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.2 | 4.2 | 4.2 | 4.1 | 4.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.5 | Bright |
| 2 | 5.4 | Bright |
| 3 | 5.4 | Bright |
| 4 | 5.3 | Bright |
| 5 | 5.3 | Bright |
| 6 | 5.3 | Bright |
| 7 | 5.2 | Bright |
| 8 | 5.2 | Bright |
| 9 | 5.1 | Bright |
| 10 | 5.1 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.7 | Bright |
| 18 | 4.7 | Bright |
| 19 | 4.6 | Bright |
| 20 | 4.5 | Bright |
| 21 | 4.5 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.4 | Bright |
| 24 | 4.4 | Bright |
| 25 | 4.3 | Bright |
| 26 | 4.3 | Bright |
| 27 | 4.2 | Bright |
| 28 | 4.2 | Bright |
| 29 | 4.2 | Bright |
| 30 | 4.1 | Bright |
| 31 | 4.1 | Bright |
Is October a good time to visit Rowland Heights?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is one of the better times to visit Rowland Heights for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Rowland Heights in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Rowland Heights sees daytime highs around 79°F and nights near 58°F. Worth packing: light clothes and sun protection.
Sea temperature near Rowland Heights in October
The nearest coast averages about 67°F in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 24 mi away) is warmest in August at about 69°F and coldest in February near 59°F.
It's comfortable for a long swim from Jul 13 to Sep 28 — about 2.6 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 59 | 59 | 59 | 60 | 63 | 65 | 68 | 69 | 69 | 67 | 64 | 60 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 59 | Cool |
| Feb | 59 | Cool |
| Mar | 59 | Cool |
| Apr | 60 | Cool |
| May | 63 | Cool |
| Jun | 65 | Cool |
| Jul | 68 | Refreshing |
| Aug | 69 | Refreshing |
| Sep | 69 | Refreshing |
| Oct | 67 | Cool |
| Nov | 64 | Cool |
| Dec | 60 | Cool |
UV index in Rowland Heights in October
Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rowland Heights peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 5 | 8 | 8 | 11 | 11 | 10 | 8 | 6 | 3 | 3 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | Moderate |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 3 | Moderate |
Air quality in Rowland Heights in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Rowland Heights is worst in September — around 49 µg/m³ PM2.5 (poor), about 4.0× the cleanest month (May, 12 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) | 18 | 19 | 19 | 17 | 12 | 17 | 19 | 32 | 49 | 21 | 21 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 19 | Moderate |
| Mar | 19 | Moderate |
| Apr | 17 | Moderate |
| May | 12 | Moderate |
| Jun | 17 | Moderate |
| Jul | 19 | Moderate |
| Aug | 32 | Moderate |
| Sep | 49 | Poor |
| Oct | 21 | Moderate |
| Nov | 21 | Moderate |
| Dec | 18 | Moderate |
Where is Rowland Heights?
Rowland Heights sits at 34.0°N, 117.9°W, 525 ft above sea level, in United States. The nearest listed city is South San Jose Hills, 2.5 mi away.
Topography around Rowland Heights
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Rowland Heights.
Within 2 miles, the terrain around Rowland Heights has significant variations in elevation — a maximum elevation change of 1,030 ft around an average of 709 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,627 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,013 ft.
The land around Rowland Heights is covered by artificial surfaces (53%), trees (20%) and grassland (20%) within 2 miles, artificial surfaces (65%) within 10 miles, and artificial surfaces (26%) and water (23%) 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 Rowland Heights (33.9761°, -117.9053°, elevation 525 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).